snapshot of https://github.com/zulip/zulip.git @ 48c69911c7dd4e03b20552eb3bd77ad8151c1357 (2026-09-15)

zerver/tests/fixtures/.gitignore

@@ -0,0 +1 @@
+/messages.json

zerver/tests/fixtures/apple/private_key.pem

@@ -0,0 +1,14 @@
+-----BEGIN EC PRIVATE KEY-----
+MHcCAQEEIDID8g9mX4QhBstI0asSOwAbetxN13PaA5YoVLsQgp8SoAoGCCqGSM49
+AwEHoUQDQgAEQDCysAPobKehaA/R5mKepHOnr7y/nXifgsDXkYK9qEj6SM0cZ2oR
+f3pQlwPrd+3i4DB9RSu1Ok8cAkACpJfu+g==
+-----END EC PRIVATE KEY-----
+
+This key is generated using
+
+$ openssl ecparam -genkey -name prime256v1 -noout -out private_key.pem
+
+and isn't used anywhere. so, it's safe to have this checked into version control.
+It is generated to avoid internal functions, for e.g. `generate_client_secret`,
+of python-social-auth from failing because of a private key missing.
+

zerver/tests/fixtures/apple/token_gen_private_key

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----

zerver/tests/fixtures/authors.json

@@ -0,0 +1,91 @@
+{
+    "contributors": [{
+        "name": "eeshangarg",
+        "python-zulip-api": 57,
+        "server": 179,
+        "avatar": "https://avatars0.githubusercontent.com/u/7251823?v=4"
+    }, {
+        "name": "borisyankov",
+        "mobile": 613,
+        "avatar": "https://avatars3.githubusercontent.com/u/867242?v=4"
+    }, {
+        "name": "geeeeeeeeek",
+        "avatar": "https://avatars1.githubusercontent.com/u/7262715?v=4",
+        "desktop": 170
+    }, {
+        "name": "showell",
+        "python-zulip-api": 16,
+        "server": 1620,
+        "avatar": "https://avatars2.githubusercontent.com/u/142908?v=4"
+    }, {
+        "name": "rishig",
+        "python-zulip-api": 3,
+        "zulipbot": 2,
+        "avatar": "https://avatars2.githubusercontent.com/u/890911?v=4",
+        "server": 649
+    }, {
+        "name": "hackerkid",
+        "server": 526,
+        "avatar": "https://avatars1.githubusercontent.com/u/7190633?v=4",
+        "desktop": 1
+    }, {
+        "name": "TomaszKolek",
+        "python-zulip-api": 2,
+        "mobile": 4,
+        "server": 60,
+        "avatar": "https://avatars3.githubusercontent.com/u/5993758?v=4"
+    }, {
+        "name": "umairwaheed",
+        "python-zulip-api": 1,
+        "server": 661,
+        "avatar": "https://avatars1.githubusercontent.com/u/641763?v=4"
+    }, {
+        "name": "timabbott",
+        "python-zulip-api": 520,
+        "server": 6094,
+        "avatar": "https://avatars0.githubusercontent.com/u/2746074?v=4",
+        "desktop": 2
+    }, {
+        "name": "brockwhittaker",
+        "mobile": 3,
+        "server": 643,
+        "avatar": "https://avatars0.githubusercontent.com/u/10321399?v=4",
+        "desktop": 3
+    }, {
+        "name": "akashnimare",
+        "server": 10,
+        "avatar": "https://avatars0.githubusercontent.com/u/2263909?v=4",
+        "desktop": 489
+    }, {
+        "name": "zbenjamin",
+        "python-zulip-api": 91,
+        "server": 1103,
+        "avatar": "https://avatars3.githubusercontent.com/u/58684?v=4"
+    }, {
+        "name": "gnprice",
+        "python-zulip-api": 1,
+        "server": 241,
+        "avatar": "https://avatars1.githubusercontent.com/u/28173?v=4",
+        "desktop": 4
+    }, {
+        "name": "synicalsyntax",
+        "avatar": "https://avatars0.githubusercontent.com/u/15116870?v=4",
+        "zulipbot": 277,
+        "desktop": 2,
+        "server": 334,
+        "mobile": 1
+    }, {
+        "name": "lonerz",
+        "python-zulip-api": 3,
+        "avatar": "https://avatars1.githubusercontent.com/u/12992571?v=4",
+        "zulipbot": 36,
+        "desktop": 2,
+        "server": 109
+    }, {
+        "name": "lfaraone",
+        "python-zulip-api": 22,
+        "server": 426,
+        "avatar": "https://avatars2.githubusercontent.com/u/73410?v=4"
+    }],
+    "date": "2017-11-20"
+}

zerver/tests/fixtures/config.generate_data.json

@@ -0,0 +1,93 @@
+{
+  "gen_fodder":
+  {
+    "nouns":["server", "FAILED EXPORT", "RECENT TOPICS",  "laptop", "BOTS", "router", "bridge",
+      "cat5", "nas", "MOBILE", "file server", "API", "wifi", "printer",
+      "plotter", "WEB APP", "desktop", "PLOTS", "database", "URLS", "keurig"],
+
+    "adjectives": ["new", "LAST",  "old", "first", "NEW", "last", "big", "little",
+      "leased", "FIRST", "owned", "red", "blue", "OLD", "green"],
+
+     "verbs": ["running", "skipping", "loading", "linking",
+      "over-heating", "de-duping", "compiling"],
+
+      "adverbs": ["quickly", "slowly", "erratically"],
+
+      "connectors": ["is", "isn't", "was", "wasn't", "has been"] ,
+
+      "emoji": [":thumbs_up:", ":thumbs_down:", ":shirt:", ":zulip:", ":tada:", ":earth_asia:",
+        ":cop:", ":8ball:", ":boat:", ":egg:", ":heartpulse:", ":moon_ceremony:", ":cupid:", ":mag:"],
+      "links":
+       ["https://zulip.readthedocs.io/en/latest/subsystems/emoji.html",
+         "https://zulip.readthedocs.io/en/latest/subsystems/full-text-search.html",
+         "https://zulip.readthedocs.io/en/latest/subsystems/analytics.html",
+         "https://zulip.readthedocs.io/en/latest/translating/translating.html",
+         "https://zulip.readthedocs.io/en/latest/subsystems/client.html",
+         "https://zulip.readthedocs.io/en/latest/subsystems/logging.html",
+         "https://zulip.readthedocs.io/en/latest/subsystems/dependencies.html"],
+      "topic-links": [
+        "https://example.com",
+        "https://zulip.com",
+        "https://chat.zulip.org",
+        "https://github.com/zulip",
+        "https://wikipedia.org"
+      ],
+      "inline-code": [
+        "`(reduce (fn [m [k v]] (assoc m v k)) {} {:b 2 :a 1 :c 3})`" ,
+        "`select id, first-name, last-name from users where active = 1;`",
+        "`list(range(3, 6))`",
+        "`(inc [1 2 3 4 5])`" ],
+      "code-blocks": [
+        "\n```\ndef write_multiple_items(file, separator, *args):\n    file.write(separator.join(args))\n```",
+        "\n```python\ndef concat(*args, sep='/'):\n    return sep.join(args)\n```",
+        "\n```\n(map + [1 2 3] [4 5 6])\n ;;=> (5 7 9)\n```"
+      ],
+
+      "quote-blocks": [
+        "```quote\nBe yourself; everyone else is already taken.\n -- Oscar Wilde\n```",
+        "```quote\nSocieties have always been shaped more by the nature of the media by which humans communicate than by the content of the communication.\n -- Marshall McLuhan\n```",
+        "```quote\nWord-work is sublime...because it is generative; it makes meaning that secures our difference, our human difference -- the way in which we are like no other life.\n -- Toni Morrison\n```",
+        "```quote\nI've learned that people will forget what you said, people will forget what you did, but people will never forget how you made them feel.\n -- Maya Angelou\n```",
+        "```quote\nAny sufficiently advanced technology is indistinguishable from magic.\n -- Arthur C. Clarke\n```"
+      ],
+
+      "images": [
+            "[seahorse](/static/images/characters/seahorse.png)\n",
+            "[starr](/static/images/characters/starr.png)\n",
+            "[topics](/static/images/story-tutorial/zulip-topic.png)\n",
+            "[On_it!](/static/images/story-tutorial/zulip-compose.png)\n",
+            "[streams](/static/images/story-tutorial/zulip-streams.png)\n",
+            "[stream_selected](/static/images/story-tutorial/zulip-streams-selected-original.png)\n",
+            "[unreads](/static/images/story-tutorial/zulip-streams-unreads.png)\n"
+      ],
+
+      "maths": [
+        "$$e^{i \\pi } + 1 = 0$$",
+        "$$\\frac{1}{\\Gamma(k)\\theta^k x^{k-1} e^{-\\frac{x}{\\theta}}$$"
+      ],
+
+      "lists": [
+        "* milk\n* eggs\n* bread\n* fruit\n  * apples\n  * oranges\n  * watermelon\n* cookies",
+        "* Myrmica ruginodis\n* Myrmica kotokui\n* Crematogaster pilosa"
+      ]
+  },
+  "dist_percentages":
+  {
+    "bold": 5,
+    "italic": 3,
+    "emoji" : 8,
+    "strike-thru": 2,
+    "quoted": 5,
+    "quote-block": 5,
+    "inline-code": 5,
+    "code-block": 3,
+    "math": 1,
+    "link" : 8,
+    "list": 5,
+    "images" : 5
+  },
+  "corpus":
+  {
+    "filename": "zerver/lib/test_data.source.txt"
+  }
+}

zerver/tests/fixtures/csp_report.json

@@ -0,0 +1,16 @@
+{
+    "csp-report": {
+        "document-uri": "http://localhost:9991/",
+        "referrer": "http://zulipdev.com:9991/devlogin/",
+        "violated-directive": "script-src",
+        "effective-directive": "script-src",
+        "original-policy": "default-src 'self'; report-uri /report/csp_violations",
+        "disposition": "report",
+        "blocked-uri": "eval",
+        "line-number": 1256,
+        "column-number": 1,
+        "source-file": "http://localhost:9991/webpack/common.js",
+        "status-code": 200,
+        "script-sample": ""
+    }
+}

zerver/tests/fixtures/email/1.json

@@ -0,0 +1,8 @@
+[
+    {
+        "from": "hamlet@zulip.com",
+        "to": "foo@zulip.com",
+        "subject": "1.json",
+        "body": "Email fixture 1.json body"
+    }
+]

zerver/tests/fixtures/email/1.txt

@@ -0,0 +1,9 @@
+Content-Type: text/plain; charset="us-ascii"
+MIME-Version: 1.0
+Content-Transfer-Encoding: 7bit
+Subject: Normal subject
+From: hamlet@zulip.com
+To: foo@zulipdev.com
+Reply-to: othello@zulip.com
+
+Email fixture 1.txt body

zerver/tests/fixtures/email/custom_emails/email_base_headers_custom_test.md

@@ -0,0 +1,4 @@
+From: TestFrom
+Subject: Test subject
+
+Test body with {{ custom }} value.

zerver/tests/fixtures/email/custom_emails/email_base_headers_no_headers_test.md

@@ -0,0 +1 @@
+Test body

zerver/tests/fixtures/email/custom_emails/email_base_headers_test.md

@@ -0,0 +1,4 @@
+From: TestFrom
+Subject: Test subject
+
+Test body

zerver/tests/fixtures/email/simple.txt

@@ -0,0 +1,7 @@
+To: {stream_to_address}
+From: {sender}
+Subject: Testing email mirror
+Content-Type: text/plain; charset=utf-8; format=flowed
+Content-Transfer-Encoding: 7bit
+
+This is a plain-text message for testing Zulip.

zerver/tests/fixtures/email/subjects.json

@@ -0,0 +1,94 @@
+[
+    {
+        "original_subject": "Normal subject",
+        "stripped_subject": "Normal subject"
+    },
+    {
+        "original_subject": "",
+        "stripped_subject": ""
+    },
+    {
+        "original_subject": "Re: Fwd:  Re:  Software",
+        "stripped_subject": "Software"
+    },
+    {
+        "original_subject": "Fwd : Re : Re: Many",
+        "stripped_subject": "Many"
+    },
+    {
+        "original_subject": "Re : Re: Many",
+        "stripped_subject": "Many"
+    },
+    {
+        "original_subject": "Re  : : Re: Many",
+        "stripped_subject": "Many"
+    },
+    {
+        "original_subject": "Re:: Many",
+        "stripped_subject": "Many"
+    },
+    {
+        "original_subject": "Re; Many",
+        "stripped_subject": "Many"
+    },
+    {
+        "original_subject": ": noah - should not match anything",
+        "stripped_subject": ": noah - should not match anything"
+    },
+    {
+        "original_subject": "RE--",
+        "stripped_subject": ""
+    },
+    {
+        "original_subject": "RE: : Presidential Ballots for Florida",
+        "stripped_subject": "Presidential Ballots for Florida"
+    },
+    {
+        "original_subject": "[RE: (no subject)]",
+        "stripped_subject": "(no subject)"
+    },
+    {
+        "original_subject": "Request - should not match anything",
+        "stripped_subject": "Request - should not match anything"
+    },
+    {
+        "original_subject": "this is the subject (fwd)",
+        "stripped_subject": "this is the subject"
+    },
+    {
+        "original_subject": "Re: [Fwd: ] Blonde Joke",
+        "stripped_subject": "Blonde Joke"
+    },
+    {
+        "original_subject": "Re: [Fwd: [Fwd: FW: Policy]]",
+        "stripped_subject": "Policy"
+    },
+    {
+        "original_subject": "Re: Fwd: [Fwd: FW: \"Drink Plenty of Water\"]",
+        "stripped_subject": "\"Drink Plenty of Water\""
+    },
+    {
+        "original_subject": "FW: FW: (fwd) FW:  Warning from XYZ...",
+        "stripped_subject": "Warning from XYZ..."
+    },
+    {
+        "original_subject": "FW: (Fwd) (Fwd) ",
+        "stripped_subject": ""
+    },
+    {
+        "original_subject": "Fwd: [Fwd: [Fwd: Big, Bad Surf Moving]]",
+        "stripped_subject": "Big, Bad Surf Moving"
+    },
+    {
+        "original_subject": "FW: [Fwd: Fw: drawing by a school age child in PA (fwd)]",
+        "stripped_subject": "drawing by a school age child in PA"
+    },
+    {
+        "original_subject": "Re: Fwd",
+        "stripped_subject": ""
+    },
+    {
+        "original_subject": "Fwd: Re: fwd is an acronym (four-wheel drive)",
+        "stripped_subject": "fwd is an acronym (four-wheel drive)"
+    }
+]

zerver/tests/fixtures/example_jwk

@@ -0,0 +1,11 @@
+{
+    "keys": [
+        {"alg": "RS256",
+        "e": "AQAB",
+        "kid":"SOMEKID",
+        "kty": "RSA",
+        "n": "2IbW_hLmlVB2ZvuzEAM2KoHuHPpzKNekOSzWJEjfM5S1d1q8-7LffJ9ciIo4TWIQjhhi9hx__uoPuVfap358V_PAy5EL82uZT49sNiGXPG74TBlHCL4T_8lmD1aqpurv-vuvGM4bSGnY4v-Vd_Wh9tKlcvK9ludrBv_BfMAF1q7vhWIIXOBxo2iGmJyI_wwDqIjDEm7RIpMZ4MiUHIKG9_60_mtgtkAP65euIfTcnB-mg9xhforS2PEhfB_6tiOPTH9gxrZ9dpBn7IjmEAwF2Nx4KuR4bXDvKEyNReQZTCJ_ZBDi5iMIDolRllUBkAxCZlVXufWOAt_1n1sxQnSWoQ",
+        "use": "sig"
+        }
+    ]
+}

zerver/tests/fixtures/import_fixtures/applied_migrations_fixtures/with_complete_migrations.json

@@ -0,0 +1,148 @@
+{
+    "analytics": [
+        "[X] 0001_squashed_0021_alter_fillstate_id (21 squashed migrations)"
+    ],
+    "auth": [
+        "[X] 0001_initial",
+        "[X] 0002_alter_permission_name_max_length",
+        "[X] 0003_alter_user_email_max_length",
+        "[X] 0004_alter_user_username_opts",
+        "[X] 0005_alter_user_last_login_null",
+        "[X] 0006_require_contenttypes_0002",
+        "[X] 0007_alter_validators_add_error_messages",
+        "[X] 0008_alter_user_username_max_length",
+        "[X] 0009_alter_user_last_name_max_length",
+        "[X] 0010_alter_group_name_max_length",
+        "[X] 0011_update_proxy_permissions",
+        "[X] 0012_alter_user_first_name_max_length"
+    ],
+    "confirmation": [
+        "[X] 0001_squashed_0014_confirmation_confirmatio_content_80155a_idx (14 squashed migrations)",
+        "[X] 0015_alter_confirmation_object_id"
+    ],
+    "contenttypes": ["[X] 0001_initial", "[X] 0002_remove_content_type_name"],
+    "corporate": [
+        "[X] 0001_squashed_0044_convert_ids_to_bigints (44 squashed migrations)"
+    ],
+    "otp_static": [
+        "[X] 0001_initial",
+        "[X] 0002_throttling",
+        "[X] 0003_add_timestamps"
+    ],
+    "otp_totp": [
+        "[X] 0001_initial",
+        "[X] 0002_auto_20190420_0723",
+        "[X] 0003_add_timestamps"
+    ],
+    "pgroonga": [
+        "[X] 0001_enable",
+        "[X] 0002_html_escape_subject",
+        "[X] 0003_v2_api_upgrade"
+    ],
+    "phonenumber": ["[X] 0001_squashed_0001_initial (10 squashed migrations)"],
+    "sessions": ["[X] 0001_initial"],
+    "social_django": [
+        "[X] 0001_initial (2 squashed migrations)",
+        "[X] 0002_add_related_name (2 squashed migrations)",
+        "[X] 0003_alter_email_max_length (2 squashed migrations)",
+        "[X] 0004_auto_20160423_0400 (2 squashed migrations)",
+        "[X] 0005_auto_20160727_2333 (1 squashed migrations)",
+        "[X] 0006_partial",
+        "[X] 0007_code_timestamp",
+        "[X] 0008_partial_timestamp",
+        "[X] 0009_auto_20191118_0520",
+        "[X] 0010_uid_db_index",
+        "[X] 0011_alter_id_fields",
+        "[X] 0012_usersocialauth_extra_data_new",
+        "[X] 0013_migrate_extra_data",
+        "[X] 0014_remove_usersocialauth_extra_data",
+        "[X] 0015_rename_extra_data_new_usersocialauth_extra_data",
+        "[X] 0016_alter_usersocialauth_extra_data"
+    ],
+    "two_factor": ["(no migrations)"],
+    "zerver": [
+        "[X] 0001_squashed_0569 (545 squashed migrations)",
+        "[X] 0576_backfill_imageattachment",
+        "[X] 0622_backfill_imageattachment_again",
+        "[X] 0639_zh_hant_tw_rename",
+        "[X] 0570_namedusergroup_can_manage_group",
+        "[X] 0571_set_default_for_can_manage_group",
+        "[X] 0572_alter_usergroup_can_manage_group",
+        "[X] 0573_directmessagegroup_group_size",
+        "[X] 0574_backfill_directmessagegroup_group_size",
+        "[X] 0575_alter_directmessagegroup_group_size",
+        "[X] 0577_merge_20240829_0153",
+        "[X] 0578_namedusergroup_deactivated",
+        "[X] 0579_realm_can_delete_own_message_group",
+        "[X] 0580_set_default_value_for_can_delete_own_message_group",
+        "[X] 0581_alter_realm_can_delete_own_message_group",
+        "[X] 0582_remove_realm_delete_own_message_policy",
+        "[X] 0583_namedusergroup_creator_namedusergroup_date_created",
+        "[X] 0584_namedusergroup_creator_date_created_backfill",
+        "[X] 0585_userprofile_allow_private_data_export_and_more",
+        "[X] 0586_customprofilefield_editable_by_user",
+        "[X] 0587_savedsnippet",
+        "[X] 0588_realm_add_can_create_groups",
+        "[X] 0589_set_can_create_groups",
+        "[X] 0590_alter_realm_can_create_groups",
+        "[X] 0591_realm_add_can_manage_all_groups",
+        "[X] 0592_set_can_manage_all_groups",
+        "[X] 0593_alter_realm_manage_all_groups",
+        "[X] 0594_remove_realm_user_group_edit_policy",
+        "[X] 0595_add_realmexport_table_and_backfill",
+        "[X] 0596_namedusergroup_can_join_group",
+        "[X] 0597_set_default_value_for_can_join_group",
+        "[X] 0598_alter_namedusergroup_can_join_group",
+        "[X] 0599_namedusergroup_add_can_add_members_group",
+        "[X] 0600_set_default_for_can_add_members_group",
+        "[X] 0601_alter_namedusergroup_can_add_members_group",
+        "[X] 0602_remap_can_manage_all_groups",
+        "[X] 0603_realm_can_add_custom_emoji_group",
+        "[X] 0604_set_default_value_for_can_add_custom_emoji_group",
+        "[X] 0605_alter_realm_can_add_custom_emoji_group",
+        "[X] 0606_remove_realm_add_custom_emoji_policy",
+        "[X] 0607_namedusergroup_add_can_leave_group",
+        "[X] 0608_set_default_for_can_leave_group",
+        "[X] 0609_alter_namedusergroup_can_leave_group",
+        "[X] 0610_mark_introduce_resolve_topic_modal_as_read",
+        "[X] 0611_realm_can_move_messages_between_channels_group",
+        "[X] 0612_set_default_value_for_can_move_messages_between_channels_group",
+        "[X] 0613_alter_realm_can_move_messages_between_channels_group",
+        "[X] 0614_remove_realm_move_messages_between_streams_policy",
+        "[X] 0615_system_bot_avatars",
+        "[X] 0616_userprofile_can_change_user_emails",
+        "[X] 0617_remove_prefix_from_archived_streams",
+        "[X] 0618_realm_can_move_messages_between_topics_group",
+        "[X] 0619_set_default_value_for_can_move_messages_between_topics_group",
+        "[X] 0620_alter_realm_can_move_messages_between_topics_group",
+        "[X] 0621_remove_realm_edit_topic_policy",
+        "[X] 0623_merge_20241030_1835",
+        "[X] 0624_alter_realmexport_tarball_size_bytes",
+        "[X] 0625_realm_can_invite_users_group",
+        "[X] 0626_set_default_value_for_can_invite_users_group",
+        "[X] 0627_alter_realm_can_invite_users_group",
+        "[X] 0628_remove_realm_invite_to_realm_policy",
+        "[X] 0629_remove_stream_email_token_backfill_channelemailaddress",
+        "[X] 0630_multiuseinvite_groups_preregistrationuser_groups",
+        "[X] 0631_stream_is_recently_active",
+        "[X] 0632_preregistrationrealm_data_import_metadata",
+        "[X] 0633_namedusergroup_can_remove_members_group",
+        "[X] 0634_set_default_for_can_remove_members_group",
+        "[X] 0635_alter_namedusergroup_can_remove_members_group",
+        "[X] 0636_streams_add_can_administer_channel_group",
+        "[X] 0637_set_default_for_can_administer_channel_group",
+        "[X] 0638_alter_stream_can_administer_channel_group",
+        "[X] 0640_merge_20241211_1953",
+        "[X] 0641_web_suggest_update_time_zone",
+        "[X] 0642_realm_moderation_request_channel",
+        "[X] 0643_realm_scheduled_deletion_date",
+        "[X] 0644_check_update_all_channels_active_status",
+        "[X] 0645_stream_can_send_message_group",
+        "[X] 0646_set_default_for_can_send_message_group",
+        "[X] 0647_alter_stream_can_send_message_group",
+        "[X] 0648_remove_stream_stream_post_policy"
+    ],
+    "zilencer": [
+        "[X] 0001_squashed_0064_remotezulipserver_last_merge_base (64 squashed migrations)"
+    ]
+}

zerver/tests/fixtures/import_fixtures/applied_migrations_fixtures/with_missing_apps.json

@@ -0,0 +1,146 @@
+{
+    "analytics": [
+        "[X] 0001_squashed_0021_alter_fillstate_id (21 squashed migrations)"
+    ],
+    "auth": [
+        "[X] 0001_initial",
+        "[X] 0002_alter_permission_name_max_length",
+        "[X] 0003_alter_user_email_max_length",
+        "[X] 0004_alter_user_username_opts",
+        "[X] 0005_alter_user_last_login_null",
+        "[X] 0006_require_contenttypes_0002",
+        "[X] 0007_alter_validators_add_error_messages",
+        "[X] 0008_alter_user_username_max_length",
+        "[X] 0009_alter_user_last_name_max_length",
+        "[X] 0010_alter_group_name_max_length",
+        "[X] 0011_update_proxy_permissions",
+        "[X] 0012_alter_user_first_name_max_length"
+    ],
+    "confirmation": [
+        "[X] 0001_squashed_0014_confirmation_confirmatio_content_80155a_idx (14 squashed migrations)",
+        "[X] 0015_alter_confirmation_object_id"
+    ],
+    "contenttypes": ["[X] 0001_initial", "[X] 0002_remove_content_type_name"],
+    "corporate": [
+        "[X] 0001_squashed_0044_convert_ids_to_bigints (44 squashed migrations)"
+    ],
+    "otp_static": [
+        "[X] 0001_initial",
+        "[X] 0002_throttling",
+        "[X] 0003_add_timestamps"
+    ],
+    "otp_totp": [
+        "[X] 0001_initial",
+        "[X] 0002_auto_20190420_0723",
+        "[X] 0003_add_timestamps"
+    ],
+    "pgroonga": [
+        "[X] 0001_enable",
+        "[X] 0002_html_escape_subject",
+        "[X] 0003_v2_api_upgrade"
+    ],
+    "social_django": [
+        "[X] 0001_initial (2 squashed migrations)",
+        "[X] 0002_add_related_name (2 squashed migrations)",
+        "[X] 0003_alter_email_max_length (2 squashed migrations)",
+        "[X] 0004_auto_20160423_0400 (2 squashed migrations)",
+        "[X] 0005_auto_20160727_2333 (1 squashed migrations)",
+        "[X] 0006_partial",
+        "[X] 0007_code_timestamp",
+        "[X] 0008_partial_timestamp",
+        "[X] 0009_auto_20191118_0520",
+        "[X] 0010_uid_db_index",
+        "[X] 0011_alter_id_fields",
+        "[X] 0012_usersocialauth_extra_data_new",
+        "[X] 0013_migrate_extra_data",
+        "[X] 0014_remove_usersocialauth_extra_data",
+        "[X] 0015_rename_extra_data_new_usersocialauth_extra_data",
+        "[X] 0016_alter_usersocialauth_extra_data"
+    ],
+    "two_factor": ["(no migrations)"],
+    "zerver": [
+        "[X] 0001_squashed_0569 (545 squashed migrations)",
+        "[X] 0576_backfill_imageattachment",
+        "[X] 0622_backfill_imageattachment_again",
+        "[X] 0639_zh_hant_tw_rename",
+        "[X] 0570_namedusergroup_can_manage_group",
+        "[X] 0571_set_default_for_can_manage_group",
+        "[X] 0572_alter_usergroup_can_manage_group",
+        "[X] 0573_directmessagegroup_group_size",
+        "[X] 0574_backfill_directmessagegroup_group_size",
+        "[X] 0575_alter_directmessagegroup_group_size",
+        "[X] 0577_merge_20240829_0153",
+        "[X] 0578_namedusergroup_deactivated",
+        "[X] 0579_realm_can_delete_own_message_group",
+        "[X] 0580_set_default_value_for_can_delete_own_message_group",
+        "[X] 0581_alter_realm_can_delete_own_message_group",
+        "[X] 0582_remove_realm_delete_own_message_policy",
+        "[X] 0583_namedusergroup_creator_namedusergroup_date_created",
+        "[X] 0584_namedusergroup_creator_date_created_backfill",
+        "[X] 0585_userprofile_allow_private_data_export_and_more",
+        "[X] 0586_customprofilefield_editable_by_user",
+        "[X] 0587_savedsnippet",
+        "[X] 0588_realm_add_can_create_groups",
+        "[X] 0589_set_can_create_groups",
+        "[X] 0590_alter_realm_can_create_groups",
+        "[X] 0591_realm_add_can_manage_all_groups",
+        "[X] 0592_set_can_manage_all_groups",
+        "[X] 0593_alter_realm_manage_all_groups",
+        "[X] 0594_remove_realm_user_group_edit_policy",
+        "[X] 0595_add_realmexport_table_and_backfill",
+        "[X] 0596_namedusergroup_can_join_group",
+        "[X] 0597_set_default_value_for_can_join_group",
+        "[X] 0598_alter_namedusergroup_can_join_group",
+        "[X] 0599_namedusergroup_add_can_add_members_group",
+        "[X] 0600_set_default_for_can_add_members_group",
+        "[X] 0601_alter_namedusergroup_can_add_members_group",
+        "[X] 0602_remap_can_manage_all_groups",
+        "[X] 0603_realm_can_add_custom_emoji_group",
+        "[X] 0604_set_default_value_for_can_add_custom_emoji_group",
+        "[X] 0605_alter_realm_can_add_custom_emoji_group",
+        "[X] 0606_remove_realm_add_custom_emoji_policy",
+        "[X] 0607_namedusergroup_add_can_leave_group",
+        "[X] 0608_set_default_for_can_leave_group",
+        "[X] 0609_alter_namedusergroup_can_leave_group",
+        "[X] 0610_mark_introduce_resolve_topic_modal_as_read",
+        "[X] 0611_realm_can_move_messages_between_channels_group",
+        "[X] 0612_set_default_value_for_can_move_messages_between_channels_group",
+        "[X] 0613_alter_realm_can_move_messages_between_channels_group",
+        "[X] 0614_remove_realm_move_messages_between_streams_policy",
+        "[X] 0615_system_bot_avatars",
+        "[X] 0616_userprofile_can_change_user_emails",
+        "[X] 0617_remove_prefix_from_archived_streams",
+        "[X] 0618_realm_can_move_messages_between_topics_group",
+        "[X] 0619_set_default_value_for_can_move_messages_between_topics_group",
+        "[X] 0620_alter_realm_can_move_messages_between_topics_group",
+        "[X] 0621_remove_realm_edit_topic_policy",
+        "[X] 0623_merge_20241030_1835",
+        "[X] 0624_alter_realmexport_tarball_size_bytes",
+        "[X] 0625_realm_can_invite_users_group",
+        "[X] 0626_set_default_value_for_can_invite_users_group",
+        "[X] 0627_alter_realm_can_invite_users_group",
+        "[X] 0628_remove_realm_invite_to_realm_policy",
+        "[X] 0629_remove_stream_email_token_backfill_channelemailaddress",
+        "[X] 0630_multiuseinvite_groups_preregistrationuser_groups",
+        "[X] 0631_stream_is_recently_active",
+        "[X] 0632_preregistrationrealm_data_import_metadata",
+        "[X] 0633_namedusergroup_can_remove_members_group",
+        "[X] 0634_set_default_for_can_remove_members_group",
+        "[X] 0635_alter_namedusergroup_can_remove_members_group",
+        "[X] 0636_streams_add_can_administer_channel_group",
+        "[X] 0637_set_default_for_can_administer_channel_group",
+        "[X] 0638_alter_stream_can_administer_channel_group",
+        "[X] 0640_merge_20241211_1953",
+        "[X] 0641_web_suggest_update_time_zone",
+        "[X] 0642_realm_moderation_request_channel",
+        "[X] 0643_realm_scheduled_deletion_date",
+        "[X] 0644_check_update_all_channels_active_status",
+        "[X] 0645_stream_can_send_message_group",
+        "[X] 0646_set_default_for_can_send_message_group",
+        "[X] 0647_alter_stream_can_send_message_group",
+        "[X] 0648_remove_stream_stream_post_policy"
+    ],
+    "zilencer": [
+        "[X] 0001_squashed_0064_remotezulipserver_last_merge_base (64 squashed migrations)"
+    ]
+}

zerver/tests/fixtures/import_fixtures/applied_migrations_fixtures/with_unapplied_migrations.json

@@ -0,0 +1,148 @@
+{
+    "analytics": [
+        "[X] 0001_squashed_0021_alter_fillstate_id (21 squashed migrations)"
+    ],
+    "auth": [
+        "[X] 0001_initial",
+        "[X] 0002_alter_permission_name_max_length",
+        "[X] 0003_alter_user_email_max_length",
+        "[X] 0004_alter_user_username_opts",
+        "[X] 0005_alter_user_last_login_null",
+        "[X] 0006_require_contenttypes_0002",
+        "[X] 0007_alter_validators_add_error_messages",
+        "[X] 0008_alter_user_username_max_length",
+        "[X] 0009_alter_user_last_name_max_length",
+        "[X] 0010_alter_group_name_max_length",
+        "[ ] 0011_update_proxy_permissions",
+        "[ ] 0012_alter_user_first_name_max_length"
+    ],
+    "confirmation": [
+        "[X] 0001_squashed_0014_confirmation_confirmatio_content_80155a_idx (14 squashed migrations)",
+        "[X] 0015_alter_confirmation_object_id"
+    ],
+    "contenttypes": ["[X] 0001_initial", "[X] 0002_remove_content_type_name"],
+    "corporate": [
+        "[X] 0001_squashed_0044_convert_ids_to_bigints (44 squashed migrations)"
+    ],
+    "otp_static": [
+        "[X] 0001_initial",
+        "[X] 0002_throttling",
+        "[X] 0003_add_timestamps"
+    ],
+    "otp_totp": [
+        "[X] 0001_initial",
+        "[X] 0002_auto_20190420_0723",
+        "[X] 0003_add_timestamps"
+    ],
+    "pgroonga": [
+        "[X] 0001_enable",
+        "[X] 0002_html_escape_subject",
+        "[X] 0003_v2_api_upgrade"
+    ],
+    "phonenumber": ["[X] 0001_squashed_0001_initial (10 squashed migrations)"],
+    "sessions": ["[X] 0001_initial"],
+    "social_django": [
+        "[X] 0001_initial (2 squashed migrations)",
+        "[X] 0002_add_related_name (2 squashed migrations)",
+        "[X] 0003_alter_email_max_length (2 squashed migrations)",
+        "[X] 0004_auto_20160423_0400 (2 squashed migrations)",
+        "[X] 0005_auto_20160727_2333 (1 squashed migrations)",
+        "[X] 0006_partial",
+        "[X] 0007_code_timestamp",
+        "[X] 0008_partial_timestamp",
+        "[X] 0009_auto_20191118_0520",
+        "[X] 0010_uid_db_index",
+        "[X] 0011_alter_id_fields",
+        "[X] 0012_usersocialauth_extra_data_new",
+        "[X] 0013_migrate_extra_data",
+        "[X] 0014_remove_usersocialauth_extra_data",
+        "[X] 0015_rename_extra_data_new_usersocialauth_extra_data",
+        "[X] 0016_alter_usersocialauth_extra_data"
+    ],
+    "two_factor": ["(no migrations)"],
+    "zerver": [
+        "[X] 0001_squashed_0569 (545 squashed migrations)",
+        "[X] 0576_backfill_imageattachment",
+        "[X] 0622_backfill_imageattachment_again",
+        "[X] 0639_zh_hant_tw_rename",
+        "[X] 0570_namedusergroup_can_manage_group",
+        "[X] 0571_set_default_for_can_manage_group",
+        "[X] 0572_alter_usergroup_can_manage_group",
+        "[X] 0573_directmessagegroup_group_size",
+        "[X] 0574_backfill_directmessagegroup_group_size",
+        "[X] 0575_alter_directmessagegroup_group_size",
+        "[X] 0577_merge_20240829_0153",
+        "[X] 0578_namedusergroup_deactivated",
+        "[X] 0579_realm_can_delete_own_message_group",
+        "[X] 0580_set_default_value_for_can_delete_own_message_group",
+        "[X] 0581_alter_realm_can_delete_own_message_group",
+        "[X] 0582_remove_realm_delete_own_message_policy",
+        "[X] 0583_namedusergroup_creator_namedusergroup_date_created",
+        "[X] 0584_namedusergroup_creator_date_created_backfill",
+        "[X] 0585_userprofile_allow_private_data_export_and_more",
+        "[X] 0586_customprofilefield_editable_by_user",
+        "[X] 0587_savedsnippet",
+        "[X] 0588_realm_add_can_create_groups",
+        "[X] 0589_set_can_create_groups",
+        "[X] 0590_alter_realm_can_create_groups",
+        "[X] 0591_realm_add_can_manage_all_groups",
+        "[X] 0592_set_can_manage_all_groups",
+        "[X] 0593_alter_realm_manage_all_groups",
+        "[X] 0594_remove_realm_user_group_edit_policy",
+        "[X] 0595_add_realmexport_table_and_backfill",
+        "[X] 0596_namedusergroup_can_join_group",
+        "[X] 0597_set_default_value_for_can_join_group",
+        "[X] 0598_alter_namedusergroup_can_join_group",
+        "[X] 0599_namedusergroup_add_can_add_members_group",
+        "[X] 0600_set_default_for_can_add_members_group",
+        "[X] 0601_alter_namedusergroup_can_add_members_group",
+        "[X] 0602_remap_can_manage_all_groups",
+        "[X] 0603_realm_can_add_custom_emoji_group",
+        "[X] 0604_set_default_value_for_can_add_custom_emoji_group",
+        "[X] 0605_alter_realm_can_add_custom_emoji_group",
+        "[X] 0606_remove_realm_add_custom_emoji_policy",
+        "[X] 0607_namedusergroup_add_can_leave_group",
+        "[X] 0608_set_default_for_can_leave_group",
+        "[X] 0609_alter_namedusergroup_can_leave_group",
+        "[X] 0610_mark_introduce_resolve_topic_modal_as_read",
+        "[X] 0611_realm_can_move_messages_between_channels_group",
+        "[X] 0612_set_default_value_for_can_move_messages_between_channels_group",
+        "[X] 0613_alter_realm_can_move_messages_between_channels_group",
+        "[X] 0614_remove_realm_move_messages_between_streams_policy",
+        "[X] 0615_system_bot_avatars",
+        "[X] 0616_userprofile_can_change_user_emails",
+        "[X] 0617_remove_prefix_from_archived_streams",
+        "[X] 0618_realm_can_move_messages_between_topics_group",
+        "[X] 0619_set_default_value_for_can_move_messages_between_topics_group",
+        "[X] 0620_alter_realm_can_move_messages_between_topics_group",
+        "[X] 0621_remove_realm_edit_topic_policy",
+        "[X] 0623_merge_20241030_1835",
+        "[X] 0624_alter_realmexport_tarball_size_bytes",
+        "[X] 0625_realm_can_invite_users_group",
+        "[X] 0626_set_default_value_for_can_invite_users_group",
+        "[X] 0627_alter_realm_can_invite_users_group",
+        "[X] 0628_remove_realm_invite_to_realm_policy",
+        "[X] 0629_remove_stream_email_token_backfill_channelemailaddress",
+        "[X] 0630_multiuseinvite_groups_preregistrationuser_groups",
+        "[X] 0631_stream_is_recently_active",
+        "[X] 0632_preregistrationrealm_data_import_metadata",
+        "[X] 0633_namedusergroup_can_remove_members_group",
+        "[X] 0634_set_default_for_can_remove_members_group",
+        "[X] 0635_alter_namedusergroup_can_remove_members_group",
+        "[X] 0636_streams_add_can_administer_channel_group",
+        "[X] 0637_set_default_for_can_administer_channel_group",
+        "[X] 0638_alter_stream_can_administer_channel_group",
+        "[X] 0640_merge_20241211_1953",
+        "[X] 0641_web_suggest_update_time_zone",
+        "[X] 0642_realm_moderation_request_channel",
+        "[X] 0643_realm_scheduled_deletion_date",
+        "[X] 0644_check_update_all_channels_active_status",
+        "[X] 0645_stream_can_send_message_group",
+        "[ ] 0646_set_default_for_can_send_message_group",
+        "[ ] 0647_alter_stream_can_send_message_group",
+        "[ ] 0648_remove_stream_stream_post_policy"
+    ],
+    "zilencer": [
+        "[X] 0001_squashed_0064_remotezulipserver_last_merge_base (64 squashed migrations)"
+    ]
+}

zerver/tests/fixtures/import_fixtures/applied_migrations_fixtures/with_unsorted_migrations_list.json

@@ -0,0 +1,148 @@
+{
+    "analytics": [
+        "[X] 0001_squashed_0021_alter_fillstate_id (21 squashed migrations)"
+    ],
+    "auth": [
+        "[X] 0001_initial",
+        "[X] 0003_alter_user_email_max_length",
+        "[X] 0004_alter_user_username_opts",
+        "[X] 0005_alter_user_last_login_null",
+        "[X] 0006_require_contenttypes_0002",
+        "[X] 0007_alter_validators_add_error_messages",
+        "[X] 0008_alter_user_username_max_length",
+        "[X] 0009_alter_user_last_name_max_length",
+        "[X] 0010_alter_group_name_max_length",
+        "[X] 0002_alter_permission_name_max_length",
+        "[X] 0011_update_proxy_permissions",
+        "[X] 0012_alter_user_first_name_max_length"
+    ],
+    "confirmation": [
+        "[X] 0001_squashed_0014_confirmation_confirmatio_content_80155a_idx (14 squashed migrations)",
+        "[X] 0015_alter_confirmation_object_id"
+    ],
+    "contenttypes": ["[X] 0001_initial", "[X] 0002_remove_content_type_name"],
+    "corporate": [
+        "[X] 0001_squashed_0044_convert_ids_to_bigints (44 squashed migrations)"
+    ],
+    "otp_static": [
+        "[X] 0001_initial",
+        "[X] 0002_throttling",
+        "[X] 0003_add_timestamps"
+    ],
+    "otp_totp": [
+        "[X] 0001_initial",
+        "[X] 0002_auto_20190420_0723",
+        "[X] 0003_add_timestamps"
+    ],
+    "pgroonga": [
+        "[X] 0001_enable",
+        "[X] 0002_html_escape_subject",
+        "[X] 0003_v2_api_upgrade"
+    ],
+    "phonenumber": ["[X] 0001_squashed_0001_initial (10 squashed migrations)"],
+    "sessions": ["[X] 0001_initial"],
+    "social_django": [
+        "[X] 0001_initial (2 squashed migrations)",
+        "[X] 0002_add_related_name (2 squashed migrations)",
+        "[X] 0003_alter_email_max_length (2 squashed migrations)",
+        "[X] 0004_auto_20160423_0400 (2 squashed migrations)",
+        "[X] 0005_auto_20160727_2333 (1 squashed migrations)",
+        "[X] 0006_partial",
+        "[X] 0007_code_timestamp",
+        "[X] 0008_partial_timestamp",
+        "[X] 0009_auto_20191118_0520",
+        "[X] 0010_uid_db_index",
+        "[X] 0011_alter_id_fields",
+        "[X] 0012_usersocialauth_extra_data_new",
+        "[X] 0013_migrate_extra_data",
+        "[X] 0014_remove_usersocialauth_extra_data",
+        "[X] 0015_rename_extra_data_new_usersocialauth_extra_data",
+        "[X] 0016_alter_usersocialauth_extra_data"
+    ],
+    "two_factor": ["(no migrations)"],
+    "zerver": [
+        "[X] 0001_squashed_0569 (545 squashed migrations)",
+        "[X] 0625_realm_can_invite_users_group",
+        "[X] 0626_set_default_value_for_can_invite_users_group",
+        "[X] 0627_alter_realm_can_invite_users_group",
+        "[X] 0628_remove_realm_invite_to_realm_policy",
+        "[X] 0629_remove_stream_email_token_backfill_channelemailaddress",
+        "[X] 0630_multiuseinvite_groups_preregistrationuser_groups",
+        "[X] 0631_stream_is_recently_active",
+        "[X] 0632_preregistrationrealm_data_import_metadata",
+        "[X] 0633_namedusergroup_can_remove_members_group",
+        "[X] 0634_set_default_for_can_remove_members_group",
+        "[X] 0635_alter_namedusergroup_can_remove_members_group",
+        "[X] 0636_streams_add_can_administer_channel_group",
+        "[X] 0637_set_default_for_can_administer_channel_group",
+        "[X] 0638_alter_stream_can_administer_channel_group",
+        "[X] 0640_merge_20241211_1953",
+        "[X] 0641_web_suggest_update_time_zone",
+        "[X] 0642_realm_moderation_request_channel",
+        "[X] 0643_realm_scheduled_deletion_date",
+        "[X] 0644_check_update_all_channels_active_status",
+        "[X] 0645_stream_can_send_message_group",
+        "[X] 0646_set_default_for_can_send_message_group",
+        "[X] 0647_alter_stream_can_send_message_group",
+        "[X] 0648_remove_stream_stream_post_policy",
+        "[X] 0576_backfill_imageattachment",
+        "[X] 0622_backfill_imageattachment_again",
+        "[X] 0639_zh_hant_tw_rename",
+        "[X] 0570_namedusergroup_can_manage_group",
+        "[X] 0571_set_default_for_can_manage_group",
+        "[X] 0572_alter_usergroup_can_manage_group",
+        "[X] 0573_directmessagegroup_group_size",
+        "[X] 0574_backfill_directmessagegroup_group_size",
+        "[X] 0575_alter_directmessagegroup_group_size",
+        "[X] 0577_merge_20240829_0153",
+        "[X] 0578_namedusergroup_deactivated",
+        "[X] 0579_realm_can_delete_own_message_group",
+        "[X] 0580_set_default_value_for_can_delete_own_message_group",
+        "[X] 0581_alter_realm_can_delete_own_message_group",
+        "[X] 0582_remove_realm_delete_own_message_policy",
+        "[X] 0583_namedusergroup_creator_namedusergroup_date_created",
+        "[X] 0584_namedusergroup_creator_date_created_backfill",
+        "[X] 0585_userprofile_allow_private_data_export_and_more",
+        "[X] 0586_customprofilefield_editable_by_user",
+        "[X] 0587_savedsnippet",
+        "[X] 0588_realm_add_can_create_groups",
+        "[X] 0589_set_can_create_groups",
+        "[X] 0590_alter_realm_can_create_groups",
+        "[X] 0591_realm_add_can_manage_all_groups",
+        "[X] 0592_set_can_manage_all_groups",
+        "[X] 0593_alter_realm_manage_all_groups",
+        "[X] 0594_remove_realm_user_group_edit_policy",
+        "[X] 0595_add_realmexport_table_and_backfill",
+        "[X] 0596_namedusergroup_can_join_group",
+        "[X] 0597_set_default_value_for_can_join_group",
+        "[X] 0598_alter_namedusergroup_can_join_group",
+        "[X] 0599_namedusergroup_add_can_add_members_group",
+        "[X] 0600_set_default_for_can_add_members_group",
+        "[X] 0601_alter_namedusergroup_can_add_members_group",
+        "[X] 0602_remap_can_manage_all_groups",
+        "[X] 0603_realm_can_add_custom_emoji_group",
+        "[X] 0604_set_default_value_for_can_add_custom_emoji_group",
+        "[X] 0605_alter_realm_can_add_custom_emoji_group",
+        "[X] 0606_remove_realm_add_custom_emoji_policy",
+        "[X] 0607_namedusergroup_add_can_leave_group",
+        "[X] 0608_set_default_for_can_leave_group",
+        "[X] 0609_alter_namedusergroup_can_leave_group",
+        "[X] 0610_mark_introduce_resolve_topic_modal_as_read",
+        "[X] 0611_realm_can_move_messages_between_channels_group",
+        "[X] 0612_set_default_value_for_can_move_messages_between_channels_group",
+        "[X] 0613_alter_realm_can_move_messages_between_channels_group",
+        "[X] 0614_remove_realm_move_messages_between_streams_policy",
+        "[X] 0615_system_bot_avatars",
+        "[X] 0616_userprofile_can_change_user_emails",
+        "[X] 0617_remove_prefix_from_archived_streams",
+        "[X] 0618_realm_can_move_messages_between_topics_group",
+        "[X] 0619_set_default_value_for_can_move_messages_between_topics_group",
+        "[X] 0620_alter_realm_can_move_messages_between_topics_group",
+        "[X] 0621_remove_realm_edit_topic_policy",
+        "[X] 0623_merge_20241030_1835",
+        "[X] 0624_alter_realmexport_tarball_size_bytes"
+    ],
+    "zilencer": [
+        "[X] 0001_squashed_0064_remotezulipserver_last_merge_base (64 squashed migrations)"
+    ]
+}

zerver/tests/fixtures/import_fixtures/check_migrations_errors/extra_migrations_error.txt

@@ -0,0 +1,27 @@
+Error: Export was generated on a different Zulip version.
+Export version: {version_placeholder}
+Server version: {version_placeholder}
+
+Database formats differ between the exported realm and this server.
+Printing migrations that differ between the versions:
+--- exported realm
++++ this server
+'auth' app:
++[ ] 0011_update_proxy_permissions
++[ ] 0012_alter_user_first_name_max_length
+ [X] 0001_initial
+@@ -10,3 +12 @@
+ [X] 0010_alter_group_name_max_length
+-[X] 0011_update_proxy_permissions
+-[X] 0012_alter_user_first_name_max_length
+
+'zerver' app:
++[ ] 0646_set_default_for_can_send_message_group
++[ ] 0647_alter_stream_can_send_message_group
++[ ] 0648_remove_stream_stream_post_policy
+ [X] 0001_squashed_0569 (545 squashed migrations)
+@@ -77,4 +80 @@
+ [X] 0645_stream_can_send_message_group
+-[X] 0646_set_default_for_can_send_message_group
+-[X] 0647_alter_stream_can_send_message_group
+-[X] 0648_remove_stream_stream_post_policy

zerver/tests/fixtures/import_fixtures/check_migrations_errors/unapplied_migrations_error.txt

@@ -0,0 +1,27 @@
+Error: Export was generated on a different Zulip version.
+Export version: {version_placeholder}
+Server version: {version_placeholder}
+
+Database formats differ between the exported realm and this server.
+Printing migrations that differ between the versions:
+--- exported realm
++++ this server
+'auth' app:
+-[ ] 0011_update_proxy_permissions
+-[ ] 0012_alter_user_first_name_max_length
+ [X] 0001_initial
+@@ -12 +10,3 @@
+ [X] 0010_alter_group_name_max_length
++[X] 0011_update_proxy_permissions
++[X] 0012_alter_user_first_name_max_length
+
+'zerver' app:
+-[ ] 0646_set_default_for_can_send_message_group
+-[ ] 0647_alter_stream_can_send_message_group
+-[ ] 0648_remove_stream_stream_post_policy
+ [X] 0001_squashed_0569 (545 squashed migrations)
+@@ -80 +77,4 @@
+ [X] 0645_stream_can_send_message_group
++[X] 0646_set_default_for_can_send_message_group
++[X] 0647_alter_stream_can_send_message_group
++[X] 0648_remove_stream_stream_post_policy

zerver/tests/fixtures/import_fixtures/messages-000001.json

@@ -0,0 +1,14 @@
+{
+    "zerver_message":[
+        {
+            "date_sent":1409000103,
+            "id":555
+        },
+        {
+            "date_sent":1409000101,
+            "id":888
+        }
+    ],
+    "zerver_usermessage":[
+    ]
+}

zerver/tests/fixtures/import_fixtures/messages-000002.json

@@ -0,0 +1,10 @@
+{
+    "zerver_message":[
+        {
+            "date_sent":1409000102,
+            "id":999
+        }
+    ],
+    "zerver_usermessage":[
+    ]
+}

zerver/tests/fixtures/import_fixtures/migration_status.json

@@ -0,0 +1,151 @@
+{
+    "migrations_by_app": {
+        "analytics": [
+            "[X] 0001_squashed_0021_alter_fillstate_id (21 squashed migrations)"
+        ],
+        "auth": [
+            "[X] 0001_initial",
+            "[X] 0002_alter_permission_name_max_length",
+            "[X] 0003_alter_user_email_max_length",
+            "[X] 0004_alter_user_username_opts",
+            "[X] 0005_alter_user_last_login_null",
+            "[X] 0006_require_contenttypes_0002",
+            "[X] 0007_alter_validators_add_error_messages",
+            "[X] 0008_alter_user_username_max_length",
+            "[X] 0009_alter_user_last_name_max_length",
+            "[X] 0010_alter_group_name_max_length",
+            "[X] 0011_update_proxy_permissions",
+            "[X] 0012_alter_user_first_name_max_length"
+        ],
+        "confirmation": [
+            "[X] 0001_squashed_0014_confirmation_confirmatio_content_80155a_idx (14 squashed migrations)",
+            "[X] 0015_alter_confirmation_object_id"
+        ],
+        "contenttypes": ["[X] 0001_initial", "[X] 0002_remove_content_type_name"],
+        "corporate": [
+            "[X] 0001_squashed_0044_convert_ids_to_bigints (44 squashed migrations)"
+        ],
+        "otp_static": [
+            "[X] 0001_initial",
+            "[X] 0002_throttling",
+            "[X] 0003_add_timestamps"
+        ],
+        "otp_totp": [
+            "[X] 0001_initial",
+            "[X] 0002_auto_20190420_0723",
+            "[X] 0003_add_timestamps"
+        ],
+        "pgroonga": [
+            "[X] 0001_enable",
+            "[X] 0002_html_escape_subject",
+            "[X] 0003_v2_api_upgrade"
+        ],
+        "phonenumber": ["[X] 0001_squashed_0001_initial (10 squashed migrations)"],
+        "sessions": ["[X] 0001_initial"],
+        "social_django": [
+            "[X] 0001_initial (2 squashed migrations)",
+            "[X] 0002_add_related_name (2 squashed migrations)",
+            "[X] 0003_alter_email_max_length (2 squashed migrations)",
+            "[X] 0004_auto_20160423_0400 (2 squashed migrations)",
+            "[X] 0005_auto_20160727_2333 (1 squashed migrations)",
+            "[X] 0006_partial",
+            "[X] 0007_code_timestamp",
+            "[X] 0008_partial_timestamp",
+            "[X] 0009_auto_20191118_0520",
+            "[X] 0010_uid_db_index",
+            "[X] 0011_alter_id_fields",
+            "[X] 0012_usersocialauth_extra_data_new",
+            "[X] 0013_migrate_extra_data",
+            "[X] 0014_remove_usersocialauth_extra_data",
+            "[X] 0015_rename_extra_data_new_usersocialauth_extra_data",
+            "[X] 0016_alter_usersocialauth_extra_data"
+        ],
+        "two_factor": ["(no migrations)"],
+        "zerver": [
+            "[X] 0001_squashed_0569 (545 squashed migrations)",
+            "[X] 0576_backfill_imageattachment",
+            "[X] 0622_backfill_imageattachment_again",
+            "[X] 0639_zh_hant_tw_rename",
+            "[X] 0570_namedusergroup_can_manage_group",
+            "[X] 0571_set_default_for_can_manage_group",
+            "[X] 0572_alter_usergroup_can_manage_group",
+            "[X] 0573_directmessagegroup_group_size",
+            "[X] 0574_backfill_directmessagegroup_group_size",
+            "[X] 0575_alter_directmessagegroup_group_size",
+            "[X] 0577_merge_20240829_0153",
+            "[X] 0578_namedusergroup_deactivated",
+            "[X] 0579_realm_can_delete_own_message_group",
+            "[X] 0580_set_default_value_for_can_delete_own_message_group",
+            "[X] 0581_alter_realm_can_delete_own_message_group",
+            "[X] 0582_remove_realm_delete_own_message_policy",
+            "[X] 0583_namedusergroup_creator_namedusergroup_date_created",
+            "[X] 0584_namedusergroup_creator_date_created_backfill",
+            "[X] 0585_userprofile_allow_private_data_export_and_more",
+            "[X] 0586_customprofilefield_editable_by_user",
+            "[X] 0587_savedsnippet",
+            "[X] 0588_realm_add_can_create_groups",
+            "[X] 0589_set_can_create_groups",
+            "[X] 0590_alter_realm_can_create_groups",
+            "[X] 0591_realm_add_can_manage_all_groups",
+            "[X] 0592_set_can_manage_all_groups",
+            "[X] 0593_alter_realm_manage_all_groups",
+            "[X] 0594_remove_realm_user_group_edit_policy",
+            "[X] 0595_add_realmexport_table_and_backfill",
+            "[X] 0596_namedusergroup_can_join_group",
+            "[X] 0597_set_default_value_for_can_join_group",
+            "[X] 0598_alter_namedusergroup_can_join_group",
+            "[X] 0599_namedusergroup_add_can_add_members_group",
+            "[X] 0600_set_default_for_can_add_members_group",
+            "[X] 0601_alter_namedusergroup_can_add_members_group",
+            "[X] 0602_remap_can_manage_all_groups",
+            "[X] 0603_realm_can_add_custom_emoji_group",
+            "[X] 0604_set_default_value_for_can_add_custom_emoji_group",
+            "[X] 0605_alter_realm_can_add_custom_emoji_group",
+            "[X] 0606_remove_realm_add_custom_emoji_policy",
+            "[X] 0607_namedusergroup_add_can_leave_group",
+            "[X] 0608_set_default_for_can_leave_group",
+            "[X] 0609_alter_namedusergroup_can_leave_group",
+            "[X] 0610_mark_introduce_resolve_topic_modal_as_read",
+            "[X] 0611_realm_can_move_messages_between_channels_group",
+            "[X] 0612_set_default_value_for_can_move_messages_between_channels_group",
+            "[X] 0613_alter_realm_can_move_messages_between_channels_group",
+            "[X] 0614_remove_realm_move_messages_between_streams_policy",
+            "[X] 0615_system_bot_avatars",
+            "[X] 0616_userprofile_can_change_user_emails",
+            "[X] 0617_remove_prefix_from_archived_streams",
+            "[X] 0618_realm_can_move_messages_between_topics_group",
+            "[X] 0619_set_default_value_for_can_move_messages_between_topics_group",
+            "[X] 0620_alter_realm_can_move_messages_between_topics_group",
+            "[X] 0621_remove_realm_edit_topic_policy",
+            "[X] 0623_merge_20241030_1835",
+            "[X] 0624_alter_realmexport_tarball_size_bytes",
+            "[X] 0625_realm_can_invite_users_group",
+            "[X] 0626_set_default_value_for_can_invite_users_group",
+            "[X] 0627_alter_realm_can_invite_users_group",
+            "[X] 0628_remove_realm_invite_to_realm_policy",
+            "[X] 0629_remove_stream_email_token_backfill_channelemailaddress",
+            "[X] 0630_multiuseinvite_groups_preregistrationuser_groups",
+            "[X] 0631_stream_is_recently_active",
+            "[X] 0632_preregistrationrealm_data_import_metadata",
+            "[X] 0633_namedusergroup_can_remove_members_group",
+            "[X] 0634_set_default_for_can_remove_members_group",
+            "[X] 0635_alter_namedusergroup_can_remove_members_group",
+            "[X] 0636_streams_add_can_administer_channel_group",
+            "[X] 0637_set_default_for_can_administer_channel_group",
+            "[X] 0638_alter_stream_can_administer_channel_group",
+            "[X] 0640_merge_20241211_1953",
+            "[X] 0641_web_suggest_update_time_zone",
+            "[X] 0642_realm_moderation_request_channel",
+            "[X] 0643_realm_scheduled_deletion_date",
+            "[X] 0644_check_update_all_channels_active_status",
+            "[X] 0645_stream_can_send_message_group",
+            "[X] 0646_set_default_for_can_send_message_group",
+            "[X] 0647_alter_stream_can_send_message_group",
+            "[X] 0648_remove_stream_stream_post_policy"
+        ],
+        "zilencer": [
+            "[X] 0001_squashed_0064_remotezulipserver_last_merge_base (64 squashed migrations)"
+        ]
+    },
+    "zulip_version": "10.0-dev+git"
+}

zerver/tests/fixtures/katex_test_cases.json

@@ -0,0 +1,69 @@
+{
+    "math_block_tests": [
+        {
+            "original_markup":"intro text\n\n```math\na + b = 33\n\n\n\n\n\n\n\nd+x = 44\n``` \n\nend",
+            "description": "Math block containing expressions with absurd number of newlines between each other. Notice how eight newlines are replaced with nine newlines",
+            "input": "<p>intro text</p>\n<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"block\"><semantics><mrow><mi>a</mi><mo>+</mo><mi>b</mi><mo>=</mo><mn>33</mn></mrow><annotation encoding=\"application/x-tex\">a + b = 33</annotation></semantics></math></span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.6667em;vertical-align:-0.0833em;\"></span><span class=\"mord mathnormal\">a</span><span class=\"mspace\" style=\"margin-right:0.2222em;\"></span><span class=\"mbin\">+</span><span class=\"mspace\" style=\"margin-right:0.2222em;\"></span></span><span class=\"base\"><span class=\"strut\" style=\"height:0.6944em;\"></span><span class=\"mord mathnormal\">b</span><span class=\"mspace\" style=\"margin-right:0.2778em;\"></span><span class=\"mrel\">=</span><span class=\"mspace\" style=\"margin-right:0.2778em;\"></span></span><span class=\"base\"><span class=\"strut\" style=\"height:0.6444em;\"></span><span class=\"mord\">33</span></span></span></span></span></span>\n\n<span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"block\"><semantics><mrow></mrow><annotation encoding=\"application/x-tex\"></annotation></semantics></math></span><span class=\"katex-html\" aria-hidden=\"true\"></span></span></span>\n\n<span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"block\"><semantics><mrow></mrow><annotation encoding=\"application/x-tex\"></annotation></semantics></math></span><span class=\"katex-html\" aria-hidden=\"true\"></span></span></span>\n\n<span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"block\"><semantics><mrow></mrow><annotation encoding=\"application/x-tex\"></annotation></semantics></math></span><span class=\"katex-html\" aria-hidden=\"true\"></span></span></span>\n\n<span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"block\"><semantics><mrow><mi>d</mi><mo>+</mo><mi>x</mi><mo>=</mo><mn>44</mn></mrow><annotation encoding=\"application/x-tex\">d+x = 44</annotation></semantics></math></span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.7778em;vertical-align:-0.0833em;\"></span><span class=\"mord mathnormal\">d</span><span class=\"mspace\" style=\"margin-right:0.2222em;\"></span><span class=\"mbin\">+</span><span class=\"mspace\" style=\"margin-right:0.2222em;\"></span></span><span class=\"base\"><span class=\"strut\" style=\"height:0.4306em;\"></span><span class=\"mord mathnormal\">x</span><span class=\"mspace\" style=\"margin-right:0.2778em;\"></span><span class=\"mrel\">=</span><span class=\"mspace\" style=\"margin-right:0.2778em;\"></span></span><span class=\"base\"><span class=\"strut\" style=\"height:0.6444em;\"></span><span class=\"mord\">44</span></span></span></span></span>\n<p>end</p>",
+            "expected_output": "intro text\n\n```math\na + b = 33\n\n\n\n\n\n\n\n\nd+x = 44\n``` \n\nend"
+        },
+        {
+            "original_markup":"hello world\n\n```math\nc + x = 6\n\nc + a = 00\n```\n\nhi there\n\n```math\nc + xy = 55\n```",
+            "input": "<p>hello world</p><p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"block\"><semantics><mrow><mi>c</mi><mo>+</mo><mi>x</mi><mo>=</mo><mn>6</mn></mrow><annotation encoding=\"application/x-tex\">c + x = 6</annotation></semantics></math></span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.6667em;vertical-align:-0.0833em;\"></span><span class=\"mord mathnormal\">c</span><span class=\"mspace\" style=\"margin-right:0.2222em;\"></span><span class=\"mbin\">+</span><span class=\"mspace\" style=\"margin-right:0.2222em;\"></span></span><span class=\"base\"><span class=\"strut\" style=\"height:0.4306em;\"></span><span class=\"mord mathnormal\">x</span><span class=\"mspace\" style=\"margin-right:0.2778em;\"></span><span class=\"mrel\">=</span><span class=\"mspace\" style=\"margin-right:0.2778em;\"></span></span><span class=\"base\"><span class=\"strut\" style=\"height:0.6444em;\"></span><span class=\"mord\">6</span></span></span></span></span></span><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"block\"><semantics><mrow><mi>c</mi><mo>+</mo><mi>a</mi><mo>=</mo><mn>00</mn></mrow><annotation encoding=\"application/x-tex\">c + a = 00</annotation></semantics></math></span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.6667em;vertical-align:-0.0833em;\"></span><span class=\"mord mathnormal\">c</span><span class=\"mspace\" style=\"margin-right:0.2222em;\"></span><span class=\"mbin\">+</span><span class=\"mspace\" style=\"margin-right:0.2222em;\"></span></span><span class=\"base\"><span class=\"strut\" style=\"height:0.4306em;\"></span><span class=\"mord mathnormal\">a</span><span class=\"mspace\" style=\"margin-right:0.2778em;\"></span><span class=\"mrel\">=</span><span class=\"mspace\" style=\"margin-right:0.2778em;\"></span></span><span class=\"base\"><span class=\"strut\" style=\"height:0.6444em;\"></span><span class=\"mord\">00</span></span></span></span></span></p><p>hi there</p><p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"block\"><semantics><mrow><mi>c</mi><mo>+</mo><mi>x</mi><mi>y</mi><mo>=</mo><mn>55</mn></mrow><annotation encoding=\"application/x-tex\">c + xy = 55</annotation></semantics></math></span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.6667em;vertical-align:-0.0833em;\"></span><span class=\"mord mathnormal\">c</span><span class=\"mspace\" style=\"margin-right:0.2222em;\"></span><span class=\"mbin\">+</span><span class=\"mspace\" style=\"margin-right:0.2222em;\"></span></span><span class=\"base\"><span class=\"strut\" style=\"height:0.625em;vertical-align:-0.1944em;\"></span><span class=\"mord mathnormal\">x</span><span class=\"mord mathnormal\" style=\"margin-right:0.03588em;\">y</span><span class=\"mspace\" style=\"margin-right:0.2778em;\"></span><span class=\"mrel\">=</span><span class=\"mspace\" style=\"margin-right:0.2778em;\"></span></span><span class=\"base\"><span class=\"strut\" style=\"height:0.6444em;\"></span><span class=\"mord\">55</span></span></span></span></span></p>",
+            "description": "Normal math block.",
+            "expected_output": "hello world\n\n```math\nc + x = 6\n\nc + a = 00\n```\n\nhi there\n\n```math\nc + xy = 55\n```"
+        },
+        {
+            "original_markup":"```math\nc+d=55\n\n\nx + y = 99\n```",
+            "description": "Selecting only math expression in math block.",
+            "input": "<p><span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">c</span><span class=\"mspace\" style=\"margin-right:0.2222em;\"></span><span class=\"mbin\">+</span><span class=\"mspace\" style=\"margin-right:0.2222em;\"></span></span><span class=\"base\"><span class=\"strut\" style=\"height:0.6944em;\"></span><span class=\"mord mathnormal\">d</span><span class=\"mspace\" style=\"margin-right:0.2778em;\"></span><span class=\"mrel\">=</span><span class=\"mspace\" style=\"margin-right:0.2778em;\"></span></span><span class=\"base\"><span class=\"strut\" style=\"height:0.6444em;\"></span><span class=\"mord\">55</span></span></span></span></span>\n\n<span class=\"katex-display\"><span class=\"katex\"><span class=\"katex-mathml\"><math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"block\"><semantics><mrow><mi>x</mi><mo>+</mo><mi>y</mi><mo>=</mo><mn>99</mn></mrow><annotation encoding=\"application/x-tex\">x + y = 99</annotation></semantics></math></span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"strut\" style=\"height:0.6667em;vertical-align:-0.0833em;\"></span><span class=\"mord mathnormal\">x</span><span class=\"mspace\" style=\"margin-right:0.2222em;\"></span><span class=\"mbin\">+</span><span class=\"mspace\" style=\"margin-right:0.2222em;\"></span></span><span class=\"base\"><span class=\"strut\" style=\"height:0.625em;vertical-align:-0.1944em;\"></span><span class=\"mord mathnormal\" style=\"margin-right:0.03588em;\">y</span><span class=\"mspace\" style=\"margin-right:0.2778em;\"></span><span class=\"mrel\">=</span><span class=\"mspace\" style=\"margin-right:0.2778em;\"></span></span><span class=\"base\"><span class=\"strut\" style=\"height:0.6444em;\"></span><span class=\"mord\">99</span></span></span></span></span></p>",
+            "expected_output": "```math\nc+d=55\n\nx + y = 99\n```"
+        }
+    ],
+    "inline_math_expression_tests": [
+        {
+            "original_markup":"intro text\n$$p+q =4$$",
+            "description": "Inline Expression 1.",
+            "expected_output": "intro text\n$$p+q =4$$"
+        },
+        {
+            "original_markup":"intro text\n$$p+q =4$$\n$$x+y=z$$\nhello world",
+            "description": "Inline Expression 2 (multiline).",
+            "expected_output": "intro text\n$$p+q =4$$\n$$x+y=z$$\nhello world"
+        },
+        {
+            "original_markup":"hey there\n$$a+b$$ some text $$c+d$$\nhow",
+            "description": "Inline expression with intermediate text node between two inline expressions.",
+            "expected_output": "hey there\n$$a+b$$ some text $$c+d$$\nhow"
+        },
+        {
+            "original_markup":"I *think* $$e^{i\\pi} = -1$$ is the **coolest** thing I've seen since $$x^2 + y^2 = z^2$$ blew my mind.",
+            "description": "Inline expression with bold and emphasized text.",
+            "expected_output":"I *think* $$e^{i\\pi} = -1$$ is the **coolest** thing I've seen since $$x^2 + y^2 = z^2$$ blew my mind."
+
+        },
+        {
+            "original_markup":"there $$a+b$$ `some code` some text _hello_ `more code` $$y+z=4444$$ ~~don't read this~~ some text `code` $$p+q=44$$ text haha wooo",
+            "expected_output":"there $$a+b$$ `some code` some text _hello_ `more code` $$y+z=4444$$ ~~don't read this~~ some text `code` $$p+q=44$$ text haha wooo",
+            "description": "Inline expression with inline elements."
+        },
+        {
+            "description":"Nested inline katex siblings",
+            "expected_output":"like ~~*this* is not $$x^2$$, it's $$xx/2$$, **see?**~~` good",
+            "original_markup":"like ~~*this* is not $$x^2$$, it's $$xx/2$$, **see?**~~` good"
+        },{
+            "description":"Another katex inline expression containing nested tags",
+            "expected_output":"world ~~it works **out $$a+b=c$$** so `well` if you try *this*** not $$p+q=r$$ that~~ good good",
+            "original_markup":"world ~~it works **out $$a+b=c$$** so `well` if you try *this*** not $$p+q=r$$ that~~ good good"
+        },{
+            "original_markup":"$$a^{b^{c}}$$",
+            "expected_output":"$$a^{b^{c}}$$"
+        }
+    ],
+    "text_node_to_span_conversion_tests":[
+        {
+        "original_markup":"A paragraph with some `code` and a [link](https://example.com/).",
+        "description":"Check conversion of intermediate text nodes and ensure it doesn't distubt pasting/quoting",
+        "expected_output":"A paragraph with some `code` and a [link](https://example.com/)."
+        }
+    ]
+}

zerver/tests/fixtures/ldap/directory.json

@@ -0,0 +1,100 @@
+
+{
+    "ou=users,dc=zulip,dc=com": {
+        "ou": "users"
+    },
+
+    "uid=hamlet,ou=users,dc=zulip,dc=com": {
+        "objectClass": ["user"],
+        "cn": ["King Hamlet"],
+        "uid": ["hamlet"],
+        "mail": ["hamlet@zulip.com"],
+        "userAccountControl": ["512"],
+        "sn": ["Hamlet"],
+        "homePhone": ["123456789"],
+        "birthDate": ["1900-09-08"],
+        "jpegPhoto": "file:static/images/test-images/avatars/example_profile_picture.png"
+    },
+
+    "uid=cordelia,ou=users,dc=zulip,dc=com": {
+        "objectClass": ["user"],
+        "cn": ["Cordelia, Lear's daughter"],
+        "uid": ["cordelia"],
+        "mail": ["cordelia@zulip.com"],
+        "sn": ["Cordelia"]
+    },
+
+    "uid=letham,ou=users,dc=zulip,dc=com": {
+        "objectClass": ["user"],
+        "cn": ["aaron"],
+        "uid": ["letham"],
+        "mail": ["aaron@zulip.com"],
+        "sn": ["aaron"]
+    },
+
+    "uid=newuser,ou=users,dc=zulip,dc=com": {
+        "objectClass": ["user"],
+        "cn": ["New LDAP fullname"],
+        "uid": ["newuser"],
+        "sn": ["shortname"],
+        "homePhone": ["a-new-number"],
+        "jpegPhoto": "file:static/images/test-images/avatars/example_profile_picture.png"
+    },
+
+    "uid=newuser_splitname,ou=users,dc=zulip,dc=com": {
+        "objectClass": ["user"],
+        "cn": ["Last"],
+        "uid": ["newuser_splitname"],
+        "sn": ["First"]
+    },
+
+    "uid=newuser_with_email,ou=users,dc=zulip,dc=com": {
+        "objectClass": ["user"],
+        "cn": ["New LDAP fullname"],
+        "uid": ["newuser_with_email"],
+        "sn": ["shortname"],
+        "mail": ["newuser_email@zulip.com"]
+    },
+
+    "uid=newuser_email_as_uid@zulip.com,ou=users,dc=zulip,dc=com": {
+        "objectClass": ["user"],
+        "cn": ["New LDAP fullname"],
+        "uid": ["newuser_email_as_uid@zulip.com"],
+        "sn": ["shortname"]
+    },
+
+    "uid=user1_with_shared_email,ou=users,dc=zulip,dc=com": {
+        "objectClass": ["user"],
+        "cn": ["New LDAP fullname"],
+        "uid": ["user1_with_shared_email"],
+        "sn": ["shortname"],
+        "mail": ["shared_email@zulip.com"]
+    },
+
+    "uid=user2_with_shared_email,ou=users,dc=zulip,dc=com": {
+        "objectClass": ["user"],
+        "cn": ["New LDAP fullname"],
+        "uid": ["user2_with_shared_email"],
+        "sn": ["shortname"],
+        "mail": ["shared_email@zulip.com"]
+    },
+
+    "ou=groups,dc=zulip,dc=com": {
+        "ou": "groups"
+    },
+    "cn=cool_test_group,ou=groups,dc=zulip,dc=com": {
+        "objectClass": ["groupOfUniqueNames"],
+        "cn": ["cool_test_group"],
+        "uniqueMember": [
+            "uid=hamlet,ou=users,dc=zulip,dc=com"
+        ]
+    },
+    "cn=another_test_group,ou=groups,dc=zulip,dc=com": {
+        "objectClass": ["groupOfUniqueNames"],
+        "cn": ["another_test_group"],
+        "uniqueMember": [
+            "uid=hamlet,ou=users,dc=zulip,dc=com",
+            "uid=cordelia,ou=users,dc=zulip,dc=com"
+        ]
+    }
+}

zerver/tests/fixtures/llm/summary.json

@@ -0,0 +1,50 @@
+{
+  "model": "groq/llama-3.3-70b-versatile",
+  "messages": [
+    {
+      "content": "The following is a chat conversation in the Zulip team chat app. channel: Zulip features, topic: New feature launch",
+      "role": "system"
+    },
+    {
+      "content": "[{\"sender\":\"Iago\",\"content\":\"Zulip just launched a feature to generate summary of messages.\"},{\"sender\":\"Iago\",\"content\":\"Sounds awesome! This will **greatly** help me when catching up.\"}]",
+      "role": "user"
+    },
+    {
+      "content": "Succinctly summarize this conversation based only on the information provided, in up to 4 sentences, for someone who is familiar with the context. Mention key conclusions and actions, if any. Refer to specific people as appropriate. Don't use an intro phrase. You can use Zulip's CommonMark based formatting.",
+      "role": "user"
+    }
+  ],
+  "response": {
+    "id": "chatcmpl-0ed48d2e-8956-444f-be81-f5d55392a280",
+    "created": 1738495155,
+    "model": "groq/llama-3.3-70b-versatile",
+    "object": "chat.completion",
+    "system_fingerprint": "fp_c0cfa69934",
+    "choices": [
+      {
+        "finish_reason": "stop",
+        "index": 0,
+        "message": {
+          "content": "Iago announced that Zulip has launched a feature to generate summaries of messages. This feature will **greatly** help Iago when catching up. No actions were specified in the conversation. Iago seems to be looking forward to using this new feature.",
+          "role": "assistant",
+          "tool_calls": null,
+          "function_call": null
+        }
+      }
+    ],
+    "usage": {
+      "completion_tokens": 53,
+      "prompt_tokens": 178,
+      "total_tokens": 231,
+      "completion_tokens_details": null,
+      "prompt_tokens_details": null,
+      "queue_time": 0.146625071,
+      "prompt_time": 0.041886488,
+      "completion_time": 0.261543978,
+      "total_time": 0.303430466
+    },
+    "x_groq": {
+      "id": "req_01jk365q8afcht4th8crf3mhbg"
+    }
+  }
+}

zerver/tests/fixtures/mattermost_fixtures/direct_channel/data/20210622/teams/noteam/channels/mcrm7xee5bnpzn7u9ktsd91dwy/users/knq189b88fdxbdkeeasdynia4o/smaa5epsnp89tgjszzue1691ao/this is a file

@@ -0,0 +1 @@
+this is a file

zerver/tests/fixtures/mattermost_fixtures/direct_channel/export.json

@@ -0,0 +1,24 @@
+{"type":"version","version":1}
+{"type":"team","team":{"name":"gryffindor","display_name":"Gryffindor","type":"O","description":"","allow_open_invite":true}}
+{"type":"channel","channel":{"team":"gryffindor","name":"gryffindor-common-room","display_name":"Gryffindor common room","type":"O","header":"","purpose":"A place for talking about Gryffindor common room"}}
+{"type":"channel","channel":{"team":"gryffindor","name":"gryffindor-quidditch-team","display_name":"Gryffindor quidditch team","type":"O","header":"","purpose":"A place for talking about Gryffindor quidditch team"}}
+{"type":"channel","channel":{"team":"gryffindor","name":"dumbledores-army","display_name":"Dumbledores army","type":"P","header":"https//:github.com/zulip/zulip","purpose":"A place for talking about Dumbledores army"}}
+{"type":"user","user":{"username":"ginny","email":"ginny@zulip.com","auth_service":"","nickname":"","first_name":"Ginny","last_name":"Weasley","position":"","roles":"system_user","locale":"en","teams":[{"name":"gryffindor","roles":"team_user","channels":[{"name":"gryffindor-quidditch-team","roles":"channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false},{"name":"gryffindor-common-room","roles":"channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false},{"name":"dumbledores-army","roles":"channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false}]}],"notify_props":{"desktop":"mention","desktop_sound":"true","email":"true","mobile":"mention","mobile_push_status":"away","channel":"true","comments":"never","mention_keys":"ginny,@ginny"}}}
+{"type":"user","user":{"username":"ron","email":"ron@zulip.com","auth_service":"","nickname":"","first_name":"Ron","last_name":"Weasley","position":"","roles":"system_user","locale":"en","teams":[{"name":"gryffindor","roles":"team_user","channels":[{"name":"gryffindor-quidditch-team","roles":"channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false},{"name":"gryffindor-common-room","roles":"channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false},{"name":"dumbledores-army","roles":"channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false}]}],"notify_props":{"desktop":"mention","desktop_sound":"true","email":"true","mobile":"mention","mobile_push_status":"away","channel":"true","comments":"never","mention_keys":"ron,@ron"}}}
+{"type":"user","user":{"username":"harry","email":"harry@zulip.com","auth_service":"","nickname":"","first_name":"Harry","last_name":"Potter","position":"","roles":"system_admin system_user","locale":"en","teams":[{"name":"gryffindor","roles":"team_admin team_user","channels":[{"name":"dumbledores-army","roles":"channel_admin channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false},{"name":"gryffindor-common-room","roles":"channel_admin channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false},{"name":"gryffindor-quidditch-team","roles":"channel_admin channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false}]}],"notify_props":{"desktop":"mention","desktop_sound":"true","email":"true","mobile":"mention","mobile_push_status":"away","channel":"true","comments":"never","mention_keys":"harry,@harry"}}}
+{"type":"user","user":{"username":"voldemort","email":"voldemort@zulip.com","auth_service":"","nickname":"","first_name":"Tom","last_name":"Riddle","position":"","roles":"system_admin system_user","locale":"en","teams":null, "notify_props":{"desktop":"mention","desktop_sound":"true","email":"true","mobile":"mention","mobile_push_status":"away","channel":"true","comments":"never","mention_keys":"harry,@harry"}}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-common-room","user":"ron","message":"ron joined the channel.","create_at":1553166512493,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-quidditch-team","user":"ron","message":"Hey folks","create_at":1553166519720,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-quidditch-team","user":"harry","message":"@ron Welcome mate!","create_at":1553166519726,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-common-room","user":"harry","message":"Looks like this channel is empty","create_at":1553166567370,"reactions":[{"user":"ron","create_at":1553166584976,"emoji_name":"rocket"}],"replies":null,"attachments":[{"path":"20210622/teams/noteam/channels/mcrm7xee5bnpzn7u9ktsd91dwy/users/knq189b88fdxbdkeeasdynia4o/smaa5epsnp89tgjszzue1691ao/this is a file"}]}}
+{"type":"direct_channel","direct_channel":{"members":["ron","harry"],"favorited_by":null,"header":""}}
+{"type":"direct_channel","direct_channel":{"members":["ron","harry", "ginny"],"favorited_by":null,"header":""}}
+{"type":"direct_channel","direct_channel":{"members":["harry","ron", "ginny"],"favorited_by":null,"header":""}}
+{"type":"direct_channel","direct_channel":{"members":["harry","voldemort"],"favorited_by":null,"header":""}}
+{"type":"direct_post","direct_post":{"channel_members":["ron","harry"],"user":"ron","message":"hey harry","create_at":1566376137676,"flagged_by":null,"reactions":null,"replies":null,"attachments":[{"path":"20210622/teams/noteam/channels/mcrm7xee5bnpzn7u9ktsd91dwy/users/knq189b88fdxbdkeeasdynia4o/o3to4ezua3bajj31mzpkn96n5e/harry-ron.jpg"}]}}
+{"type":"direct_post","direct_post":{"channel_members":["ron","harry"],"user":"harry","message":"what's up","create_at":1566376318568,"flagged_by":null,"reactions":null,"replies":null,"attachments":null}}
+{"type":"direct_post","direct_post":{"channel_members":["ron","harry","ginny"],"user":"ginny","message":"Who is going to Hogsmeade this weekend?","create_at":1566376226493,"flagged_by":null,"reactions":null,"replies":null,"attachments":null}}
+{"type":"direct_post","direct_post":{"channel_members":["ron","harry","ginny"],"user":"harry","message":"\u0000\u0001\u0001Hello How Are you\u0001\u0000\u0000\u0000\u0000","create_at":1566376311350,"flagged_by":null,"reactions":null,"replies":null,"attachments":null}}
+{"type":"direct_post","direct_post":{"channel_members":["ron","harry","ginny"],"user":"ron","message":"I am going as well","create_at":1566376286363,"flagged_by":null,"reactions":null,"replies":null,"attachments":null}}
+{"type":"direct_post","direct_post":{"channel_members":["harry","voldemort"],"user":"voldemort","message":"Hey Harry.","create_at":1566376318569,"flagged_by":null,"reactions":null,"replies":null,"attachments":null}}
+{"type":"direct_post","direct_post":{"channel_members":["harry","voldemort"],"user":"harry","message":"Ahh. Here we go again.","create_at":1566376318579,"flagged_by":null,"reactions":null,"replies":null,"attachments":null}}

zerver/tests/fixtures/mattermost_fixtures/export.json

@@ -0,0 +1,44 @@
+{"type":"version","version":1}
+{"type":"team","team":{"name":"gryffindor","display_name":"Iago Realm","type":"O","description":"","allow_open_invite":true}}
+{"type":"team","team":{"name":"slytherin","display_name":"Othello Team","type":"O","description":"","allow_open_invite":true}}
+{"type":"channel","channel":{"team":"gryffindor","name":"gryffindor-common-room","display_name":"Gryffindor common room","type":"O","header":"","purpose":"A place for talking about Gryffindor common room"}}
+{"type":"channel","channel":{"team":"gryffindor","name":"gryffindor-quidditch-team","display_name":"Gryffindor quidditch team","type":"O","header":"","purpose":"A place for talking about Gryffindor quidditch team"}}
+{"type":"channel","channel":{"team":"slytherin","name":"slytherin-common-room","display_name":"Slytherin common room","type":"O","header":"","purpose":""}}
+{"type":"channel","channel":{"team":"gryffindor","name":"dumbledores-army","display_name":"Dumbledores army","type":"P","header":"https//:github.com/zulip/zulip","purpose":"A place for talking about Dumbledores army"}}
+{"type":"channel","channel":{"team":"slytherin","name":"slytherin-quidditch-team","display_name":"Slytherin quidditch team","type":"O","header":"","purpose":""}}
+{"type":"channel","channel":{"team":"gryffindor","name":"long-channel-name","display_name":"Super long channel name, it's more than 60 characters, which is Zulip's channel name length limit.","type":"O","header":"","purpose":""}}
+{"type":"channel","channel":{"team":"gryffindor","name":"long-channel-name-2","display_name":"Super long channel name, it's more than 60 characters, which is Zulip's channel name length limit.","type":"O","header":"","purpose":""}}
+{"type":"channel","channel":{"team":"gryffindor","name":"other-long-channel-name","display_name":"Super long channel name, it's more than 60 characters, which if truncated looks similar to unrelated channels","type":"O","header":"","purpose":""}}
+{"type":"channel","channel":{"team":"gryffindor","name":"gryffindor-quidditch-team-2","display_name":"Gryffindor quidditch team","type":"O","header":"","purpose":"Another place for talking about Gryffindor quidditch team"}}
+{"type":"channel","channel":{"team":"gryffindor","name":"slug-club","display_name":"Slug club","type":"O","header":"","purpose":"A place for talking about the Slug club"}}
+{"type":"channel","channel":{"team":"gryffindor","name":"slug-club-2","display_name":"SLUG CLUB","type":"O","header":"","purpose":"Another place for talking about the Slug club"}}
+{"type":"channel","channel":{"team":"gryffindor","name":"slug-club-3","display_name":"Slug club (3)","type":"O","header":"","purpose":"A third place for talking about the Slug club"}}
+{"type":"channel","channel":{"team":"gryffindor","name":"slug-club-4","display_name":"slug club","type":"O","header":"","purpose":"A fourth place for talking about the Slug club"}}
+{"type":"user","user":{"username":"ron","email":"ron@zulip.com","auth_service":"","nickname":"","first_name":"Ron","last_name":"Weasley","position":"","roles":"system_user","locale":"en","teams":[{"name":"gryffindor","roles":"team_user","channels":[{"name":"gryffindor-quidditch-team","roles":"channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false},{"name":"gryffindor-common-room","roles":"channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false},{"name":"dumbledores-army","roles":"channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false}]}],"notify_props":{"desktop":"mention","desktop_sound":"true","email":"true","mobile":"mention","mobile_push_status":"away","channel":"true","comments":"never","mention_keys":"ron,@ron"}}}
+{"type":"user","user":{"username":"harry","email":"harry@zulip.com","auth_service":"","nickname":"","first_name":"Harry","last_name":"Potter","position":"","roles":"system_admin system_user","locale":"en","teams":[{"name":"gryffindor","roles":"team_admin team_user","channels":[{"name":"dumbledores-army","roles":"channel_admin channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false},{"name":"gryffindor-common-room","roles":"channel_admin channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false},{"name":"gryffindor-quidditch-team","roles":"channel_admin channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false}]}],"notify_props":{"desktop":"mention","desktop_sound":"true","email":"true","mobile":"mention","mobile_push_status":"away","channel":"true","comments":"never","mention_keys":"harry,@harry"}}}
+{"type":"user","user":{"username":"malfoy","email":"malfoy@zulip.com","auth_service":"","nickname":"","first_name":"","last_name":"","position":"","roles":"system_user","locale":"en","teams":[{"name":"slytherin","roles":"team_admin team_user","channels":[{"name":"slytherin-common-room","roles":"channel_admin channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false},{"name":"slytherin-quidditch-team","roles":"channel_admin channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false}]}],"notify_props":{"desktop":"mention","desktop_sound":"true","email":"true","mobile":"mention","mobile_push_status":"away","channel":"true","comments":"never","mention_keys":"malfoy,@malfoy"}}}
+{"type":"user","user":{"username":"pansy","email":"pansy@zulip.com","auth_service":"","nickname":"","first_name":"","last_name":"","position":"","roles":"system_user","locale":"en","teams":[{"name":"slytherin","roles":"team_admin team_user","channels":[{"name":"slytherin-common-room","roles":"channel_admin channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false},{"name":"slytherin-quidditch-team","roles":"channel_admin channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false}]}],"notify_props":{"desktop":"mention","desktop_sound":"true","email":"true","mobile":"mention","mobile_push_status":"away","channel":"true","comments":"never","mention_keys":"malfoy,@malfoy"}}}
+{"type":"user","user":{"username":"snape","email":"snape@zulip.com","auth_service":"","nickname":"","first_name":"Severus","last_name":"Snape","position":"","roles":"system_user","locale":"en","teams":[{"name":"slytherin","roles":"team_user","channels":[{"name":"slytherin-common-room","roles":"channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false}]}],"notify_props":{"desktop":"mention","desktop_sound":"true","email":"true","mobile":"mention","mobile_push_status":"away","channel":"true","comments":"never","mention_keys":"snape,@snape"}}}
+{"type":"post","post":{"team":"gryffindor","channel":"dumbledores-army","user":"harry","message":"harry joined the channel.","create_at":1553166657086,"reactions":null,"replies":[{"user":"ron","message":"The weather is so hot!","create_at":1553166584976}]}}
+{"type":"post","post":{"team":"gryffindor","channel":"dumbledores-army","user":"harry","message":"This will crash html2text!!! <g:brand><![CDATSALOMON NORTH AMERICA, IN}}]]></g:brand>","create_at":1553166657086,"reactions":null,"replies":[{"user":"ron","message":"The weather is so hot!","create_at":1553166584975}]}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-common-room","user":"ron","message":"ron joined the channel.","create_at":1553166512493,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-quidditch-team","user":"harry","message":"harry joined the team.","create_at":1553165141670,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-quidditch-team","user":"harry","message":"Awesome!","create_at":1553166557928,"reactions":[{"user":"malfoy","create_at":1553166812156,"emoji_name":"tick"}],"replies":null}}
+{"type":"post","post":{"team":"slytherin","channel":"slytherin-quidditch-team","user":"malfoy","message":"malfoy joined the team.","create_at":1553166852598,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-quidditch-team","user":"ron","message":"ron joined the team.","create_at":1553166512482,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-quidditch-team","user":"ron","message":"Hey folks","create_at":1553166519720,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-quidditch-team","user":"harry","message":"@ron Welcome mate!","create_at":1553166519726,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"dumbledores-army","user":"harry","message":"ron added to the channel by harry.","create_at":1553166681045,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-quidditch-team","user":"harry","message":"Hello world","create_at":1553165193242,"reactions":[{"user":"harry","create_at":1553165521410,"emoji_name":"tick"},{"user":"ron","create_at":1553166530805,"emoji_name":"smile"},{"user":"ron","create_at":1553166540953,"emoji_name":"world_map"}],"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-common-room","user":"harry","message":"Looks like this channel is empty","create_at":1553166567370,"reactions":[{"user":"ron","create_at":1553166584976,"emoji_name":"rocket"}],"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-quidditch-team","user":"ron","message":"How is everything going","create_at":1553166525124,"reactions":[{"user":"harry","create_at":1553166552827,"emoji_name":"apple"}],"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-common-room","user":"ron","message":"Not really","create_at":1553166593455,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"dumbledores-army","user":"ron","message":"hello","create_at":1553166686344,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"dumbledores-army","user":"harry","message":"hey everyone","create_at":1553166668668,"reactions":[{"user":"ron","create_at":1553166695260,"emoji_name":"grin"}],"replies":null}}
+{"type":"post","post":{"team":"slytherin","channel":"slytherin-common-room","user":"malfoy","message":"malfoy joined the channel.","create_at":1553166852612,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"slytherin","channel":"slytherin-quidditch-team","user":"malfoy","message":":rofl: 4","create_at":1553166916448,"reactions":[{"user":"harry","create_at":1553167016056,"emoji_name":"peerdium"}],"replies":null}}
+{"type":"post","post":{"team":"slytherin","channel":"slytherin-quidditch-team","user":"malfoy","message":"Hello folks","create_at":1553166858280,"reactions":[{"user":"harry","create_at":1553166903980,"emoji_name":"joy"}],"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-common-room","user":"harry","message":"harry joined the channel.","create_at":1553165141689,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-quidditch-team","user":"snape","message":"Hey folks! I was always in your team. Time to go now.","create_at":1553166740759,"reactions":null,"replies":null}}
+{"type":"emoji","emoji":{"name":"peerdium","image":"exported_emoji/h15ni7kf1bnj7jeua4qhmctsdo/image.png"}}
+{"type":"emoji","emoji":{"name":"tick","image":"exported_emoji/7u7x8ytgp78q8jir81o9ejwwnr/image.png"}}

zerver/tests/fixtures/mattermost_fixtures/guestExport.json

@@ -0,0 +1,36 @@
+{"type":"version","version":1}
+{"type":"team","team":{"name":"gryffindor","display_name":"Iago Realm","type":"O","description":"","allow_open_invite":true}}
+{"type":"team","team":{"name":"slytherin","display_name":"Othello Team","type":"O","description":"","allow_open_invite":true}}
+{"type":"channel","channel":{"team":"gryffindor","name":"gryffindor-common-room","display_name":"Gryffindor common room","type":"O","header":"","purpose":"A place for talking about Gryffindor common room"}}
+{"type":"channel","channel":{"team":"gryffindor","name":"gryffindor-quidditch-team","display_name":"Gryffindor quidditch team","type":"O","header":"","purpose":"A place for talking about Gryffindor quidditch team"}}
+{"type":"channel","channel":{"team":"slytherin","name":"slytherin-common-room","display_name":"Slytherin common room","type":"O","header":"","purpose":""}}
+{"type":"channel","channel":{"team":"gryffindor","name":"dumbledores-army","display_name":"Dumbledores army","type":"P","header":"https//:github.com/zulip/zulip","purpose":"A place for talking about Dumbledores army"}}
+{"type":"channel","channel":{"team":"slytherin","name":"slytherin-quidditch-team","display_name":"Slytherin quidditch team","type":"O","header":"","purpose":""}}
+{"type":"user","user":{"username":"ron","email":"ron@zulip.com","auth_service":"","nickname":"","first_name":"Ron","last_name":"Weasley","position":"","roles":"system_user","locale":"en","teams":[{"name":"gryffindor","roles":"team_user","channels":[{"name":"gryffindor-quidditch-team","roles":"channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false},{"name":"gryffindor-common-room","roles":"channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false},{"name":"dumbledores-army","roles":"channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false}]}],"notify_props":{"desktop":"mention","desktop_sound":"true","email":"true","mobile":"mention","mobile_push_status":"away","channel":"true","comments":"never","mention_keys":"ron,@ron"}}}
+{"type":"user","user":{"username":"harry","email":"harry@zulip.com","auth_service":"","nickname":"","first_name":"Harry","last_name":"Potter","position":"","roles":"system_admin system_user","locale":"en","teams":[{"name":"gryffindor","roles":"team_admin team_user","channels":[{"name":"dumbledores-army","roles":"channel_admin channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false},{"name":"gryffindor-common-room","roles":"channel_admin channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false},{"name":"gryffindor-quidditch-team","roles":"channel_admin channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false}]}],"notify_props":{"desktop":"mention","desktop_sound":"true","email":"true","mobile":"mention","mobile_push_status":"away","channel":"true","comments":"never","mention_keys":"harry,@harry"}}}
+{"type":"user","user":{"username":"malfoy","email":"malfoy@zulip.com","auth_service":"","nickname":"","first_name":"","last_name":"","position":"","roles":"system_user","locale":"en","teams":[{"name":"slytherin","roles":"team_admin team_user","channels":[{"name":"slytherin-common-room","roles":"channel_admin channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false},{"name":"slytherin-quidditch-team","roles":"channel_admin channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false}]}],"notify_props":{"desktop":"mention","desktop_sound":"true","email":"true","mobile":"mention","mobile_push_status":"away","channel":"true","comments":"never","mention_keys":"malfoy,@malfoy"}}}
+{"type":"user","user":{"username":"pansy","email":"pansy@zulip.com","auth_service":"","nickname":"","first_name":"","last_name":"","position":"","roles":"system_user","locale":"en","teams":[{"name":"slytherin","roles":"team_admin team_user","channels":[{"name":"slytherin-common-room","roles":"channel_admin channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false},{"name":"slytherin-quidditch-team","roles":"channel_admin channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false}]}],"notify_props":{"desktop":"mention","desktop_sound":"true","email":"true","mobile":"mention","mobile_push_status":"away","channel":"true","comments":"never","mention_keys":"malfoy,@malfoy"}}}
+{"type":"user","user":{"username":"snape","email":"snape@zulip.com","auth_service":"","nickname":"","first_name":"Severus","last_name":"Snape","position":"","roles":"system_user","locale":"en","teams":[{"name":"slytherin","roles":"team_user","channels":[{"name":"slytherin-common-room","roles":"channel_user","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false}]}],"notify_props":{"desktop":"mention","desktop_sound":"true","email":"true","mobile":"mention","mobile_push_status":"away","channel":"true","comments":"never","mention_keys":"snape,@snape"}}}
+{"type":"user","user":{"username":"sirius","email":"sirius@zulip.com","auth_service":"","nickname":"","first_name":"Sirius","last_name":"Black","position":"","roles":"system_guest","locale":"en","teams":[{"name":"slytherin","roles":"team_guest","channels":[{"name":"slytherin-common-room","roles":"channel_guest","notify_props":{"desktop":"default","mobile":"default","mark_unread":"all"},"favorite":false}]}],"notify_props":{"desktop":"mention","desktop_sound":"true","email":"true","mobile":"mention","mobile_push_status":"away","channel":"true","comments":"never","mention_keys":"sirius,@sirius"}}}
+{"type":"post","post":{"team":"gryffindor","channel":"dumbledores-army","user":"harry","message":"harry joined the channel.","create_at":1553166657086,"reactions":null,"replies":[{"user":"ron","message":"The weather is so hot!","create_at":1553166584976}]}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-common-room","user":"ron","message":"ron joined the channel.","create_at":1553166512493,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-quidditch-team","user":"harry","message":"harry joined the team.","create_at":1553165141670,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-quidditch-team","user":"harry","message":"Awesome!","create_at":1553166557928,"reactions":[{"user":"malfoy","create_at":1553166812156,"emoji_name":"tick"}],"replies":null}}
+{"type":"post","post":{"team":"slytherin","channel":"slytherin-quidditch-team","user":"malfoy","message":"malfoy joined the team.","create_at":1553166852598,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-quidditch-team","user":"ron","message":"ron joined the team.","create_at":1553166512482,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-quidditch-team","user":"ron","message":"Hey folks","create_at":1553166519720,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-quidditch-team","user":"harry","message":"@ron Welcome mate!","create_at":1553166519726,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"dumbledores-army","user":"harry","message":"ron added to the channel by harry.","create_at":1553166681045,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-quidditch-team","user":"harry","message":"Hello world","create_at":1553165193242,"reactions":[{"user":"harry","create_at":1553165521410,"emoji_name":"tick"},{"user":"ron","create_at":1553166530805,"emoji_name":"smile"},{"user":"ron","create_at":1553166540953,"emoji_name":"world_map"}],"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-common-room","user":"harry","message":"Looks like this channel is empty","create_at":1553166567370,"reactions":[{"user":"ron","create_at":1553166584976,"emoji_name":"rocket"}],"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-quidditch-team","user":"ron","message":"How is everything going","create_at":1553166525124,"reactions":[{"user":"harry","create_at":1553166552827,"emoji_name":"apple"}],"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-common-room","user":"ron","message":"Not really","create_at":1553166593455,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"dumbledores-army","user":"ron","message":"hello","create_at":1553166686344,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"dumbledores-army","user":"harry","message":"hey everyone","create_at":1553166668668,"reactions":[{"user":"ron","create_at":1553166695260,"emoji_name":"grin"}],"replies":null}}
+{"type":"post","post":{"team":"slytherin","channel":"slytherin-common-room","user":"malfoy","message":"malfoy joined the channel.","create_at":1553166852612,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"slytherin","channel":"slytherin-quidditch-team","user":"malfoy","message":":rofl:4","create_at":1553166916448,"reactions":[{"user":"harry","create_at":1553167016056,"emoji_name":"peerdium"}],"replies":null}}
+{"type":"post","post":{"team":"slytherin","channel":"slytherin-quidditch-team","user":"malfoy","message":"Hello folks","create_at":1553166858280,"reactions":[{"user":"harry","create_at":1553166903980,"emoji_name":"joy"}],"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-common-room","user":"harry","message":"harry joined the channel.","create_at":1553165141689,"reactions":null,"replies":null}}
+{"type":"post","post":{"team":"gryffindor","channel":"gryffindor-quidditch-team","user":"snape","message":"Hey folks! I was always in your team. Time to go now.","create_at":1553166740759,"reactions":null,"replies":null}}
+{"type":"emoji","emoji":{"name":"peerdium","image":"exported_emoji/h15ni7kf1bnj7jeua4qhmctsdo/image.png"}}
+{"type":"emoji","emoji":{"name":"tick","image":"exported_emoji/7u7x8ytgp78q8jir81o9ejwwnr/image.png"}}

zerver/tests/fixtures/mattermost_v11.1.0_fixtures/exported_object_samples/bot.json

@@ -0,0 +1,10 @@
+{
+    "type": "bot",
+    "bot": {
+        "username": "system-bot",
+        "owner": "admin_username",
+        "display_name": "System",
+        "description": "",
+        "delete_at": 0
+    }
+}

zerver/tests/fixtures/mattermost_v11.1.0_fixtures/exported_object_samples/channel.json

@@ -0,0 +1,12 @@
+{
+    "type": "channel",
+    "channel": {
+        "team": "ad-1",
+        "name": "autem-2",
+        "display_name": "commodi",
+        "type": "O",
+        "header": "consectetur iure et tempora qui maxime doloremque dicta. facere illo dolor nobis quae. nemo molestias nemo quam. molestiae nobis reiciendis quia. veritatis ipsam quam molestias consectetur numquam atque quam optio qui tenetur! aut ut repellat asperiores soluta expedita!",
+        "purpose": "omnis aut est inventore dignissimos.",
+        "deleted_at": 0
+    }
+}

zerver/tests/fixtures/mattermost_v11.1.0_fixtures/exported_object_samples/direct_channel.json

@@ -0,0 +1,52 @@
+{
+    "type": "direct_channel",
+    "direct_channel": {
+        "participants": [
+            {
+                "username": "nancy.sanders",
+                "notify_props": {
+                    "desktop": "default",
+                    "mobile": "default",
+                    "mark_unread": "all",
+                    "email": "default",
+                    "ignore_channel_mentions": "default",
+                    "channel_auto_follow_threads": "off"
+                }
+            },
+            {
+                "username": "lois.harper",
+                "notify_props": {
+                    "desktop": "default",
+                    "mobile": "default",
+                    "mark_unread": "all",
+                    "email": "default",
+                    "ignore_channel_mentions": "default",
+                    "channel_auto_follow_threads": "off"
+                }
+            },
+            {
+                "username": "adam.torres",
+                "notify_props": {
+                    "desktop": "default",
+                    "mobile": "default",
+                    "mark_unread": "all",
+                    "email": "default",
+                    "ignore_channel_mentions": "default",
+                    "channel_auto_follow_threads": "off"
+                }
+            },
+            {
+                "username": "keith.ryan",
+                "notify_props": {
+                    "desktop": "default",
+                    "mobile": "default",
+                    "mark_unread": "all",
+                    "email": "default",
+                    "ignore_channel_mentions": "default",
+                    "channel_auto_follow_threads": "off"
+                }
+            }
+        ],
+        "header": "tempore ipsa omnis sunt ut vel."
+    }
+}

zerver/tests/fixtures/mattermost_v11.1.0_fixtures/exported_object_samples/direct_post.json

@@ -0,0 +1,23 @@
+{
+    "type": "direct_post",
+    "direct_post": {
+        "channel_members": [
+            "adam.torres",
+            "rebecca.diaz",
+            "eugene.montgomery"
+        ],
+        "user": "eugene.montgomery",
+        "type": "",
+        "message": "ea ab est deserunt ipsa sequi inventore occaecati.\nharum harum officia.",
+        "props": {},
+        "create_at": 1768951608481,
+        "edit_at": 0,
+        "flagged_by": [
+            "rebecca.diaz"
+        ],
+        "reactions": null,
+        "replies": null,
+        "attachments": null,
+        "is_pinned": false
+    }
+}

zerver/tests/fixtures/mattermost_v11.1.0_fixtures/exported_object_samples/post.json

@@ -0,0 +1,19 @@
+{
+    "type": "post",
+    "post": {
+        "team": "reiciendis-0",
+        "channel": "minus-8",
+        "user": "jason.peterson",
+        "type": "",
+        "message": "voluptas modi ipsam rerum est.\nut debitis et quia.\nexcepturi provident sint ut quia est voluptas.",
+        "props": {},
+        "create_at": 1768933960985,
+        "edit_at": 0,
+        "flagged_by": [
+            "eugene.montgomery"
+        ],
+        "reactions": [],
+        "replies": null,
+        "is_pinned": false
+    }
+}

zerver/tests/fixtures/mattermost_v11.1.0_fixtures/exported_object_samples/post_with_replies.json

@@ -0,0 +1,48 @@
+{
+    "type": "post",
+    "post": {
+        "team": "ad-1",
+        "channel": "amet-0",
+        "user": "eugene.montgomery",
+        "type": "",
+        "message": "consequatur est reprehenderit reiciendis ratione exercitationem facilis. facere et voluptates quisquam quas laborum ut commodi aliquam qui. asperiores tempore ex molestiae ex corporis. id doloribus dolores iure est soluta ad nisi accusamus. soluta illum dicta autem dignissimos. recusandae quia tempora unde reiciendis magnam. aut quia id repellendus aut! sed et qui nesciunt nihil.",
+        "props": {},
+        "create_at": 1768916201357,
+        "edit_at": 0,
+        "flagged_by": [],
+        "reactions": [],
+        "replies": [
+            {
+                "user": "brandon.mccoy",
+                "type": "",
+                "message": "https://www.youtube.com/watch?v=mUOPxT7VgWc",
+                "props": {},
+                "create_at": 1768916284233,
+                "edit_at": 0,
+                "flagged_by": [],
+                "is_pinned": false
+            },
+            {
+                "user": "user-1",
+                "type": "",
+                "message": "quod ut voluptatem voluptatem velit.\nrepellat ut quo omnis aspernatur enim perspiciatis in architecto enim.",
+                "props": {},
+                "create_at": 1768916252899,
+                "edit_at": 0,
+                "flagged_by": [],
+                "is_pinned": false
+            },
+            {
+                "user": "user-1",
+                "type": "",
+                "message": "nisi quasi distinctio! illo et ullam magnam voluptate iure accusamus. pariatur quae quos! magnam in sunt voluptatem corrupti ullam molestiae quas. autem qui voluptatem magnam sequi quis suscipit. eveniet vel mollitia voluptatem minus quo porro necessitatibus quia sunt aut. impedit consequuntur ipsa. suscipit dolorem maiores ut occaecati eos in velit. repudiandae ex labore facere accusantium.",
+                "props": {},
+                "create_at": 1768916233181,
+                "edit_at": 0,
+                "flagged_by": [],
+                "is_pinned": false
+            }
+        ],
+        "is_pinned": false
+    }
+}

zerver/tests/fixtures/mattermost_v11.1.0_fixtures/exported_object_samples/role.json

@@ -0,0 +1,50 @@
+{
+    "type": "role",
+    "role": {
+        "name": "team_admin",
+        "display_name": "authentication.roles.team_admin.name",
+        "description": "authentication.roles.team_admin.description",
+        "permissions": [
+            "order_bookmark_public_channel",
+            "remove_user_from_team",
+            "playbook_private_manage_roles",
+            "playbook_public_manage_roles",
+            "manage_channel_access_rules",
+            "manage_others_slash_commands",
+            "use_channel_mentions",
+            "delete_others_posts",
+            "manage_team",
+            "edit_bookmark_private_channel",
+            "add_bookmark_public_channel",
+            "manage_public_channel_members",
+            "use_group_mentions",
+            "manage_private_channel_banner",
+            "convert_private_channel_to_public",
+            "manage_channel_roles",
+            "delete_bookmark_private_channel",
+            "manage_private_channel_members",
+            "upload_file",
+            "delete_bookmark_public_channel",
+            "manage_incoming_webhooks",
+            "manage_others_incoming_webhooks",
+            "manage_slash_commands",
+            "manage_public_channel_banner",
+            "remove_reaction",
+            "read_public_channel_groups",
+            "manage_others_outgoing_webhooks",
+            "import_team",
+            "read_private_channel_groups",
+            "add_reaction",
+            "manage_outgoing_webhooks",
+            "edit_bookmark_public_channel",
+            "manage_team_roles",
+            "order_bookmark_private_channel",
+            "create_post",
+            "delete_post",
+            "add_bookmark_private_channel",
+            "convert_public_channel_to_private"
+        ],
+        "scheme_managed": true
+    }
+}
+

zerver/tests/fixtures/mattermost_v11.1.0_fixtures/exported_object_samples/team.json

@@ -0,0 +1,10 @@
+{
+    "type": "team",
+    "team": {
+        "name": "zulip",
+        "display_name": "zulip",
+        "type": "O",
+        "description": "",
+        "allow_open_invite": false
+    }
+}

zerver/tests/fixtures/mattermost_v11.1.0_fixtures/exported_object_samples/user.json

@@ -0,0 +1,103 @@
+{
+    "type": "user",
+    "user": {
+        "profile_image": "users/19hyyxn9nbdwxe8hykj5fxmgwe/profile.png",
+        "username": "sysadmin",
+        "email": "sysadmin@sample.mattermost.com",
+        "auth_service": null,
+        "nickname": "",
+        "first_name": "Kenneth",
+        "last_name": "Moreno",
+        "position": "Software Test Engineer ",
+        "roles": "system_admin system_user",
+        "locale": "en",
+        "delete_at": 0,
+        "teams": [
+            {
+                "name": "ad-1",
+                "roles": "team_user",
+                "channels": [
+                    {
+                        "name": "sequi-7",
+                        "roles": "channel_user",
+                        "notify_props": {
+                            "desktop": "default",
+                            "mobile": "default",
+                            "mark_unread": "all"
+                        },
+                        "favorite": false,
+                        "mention_count": 0,
+                        "mention_count_root": 0,
+                        "urgend_mention_count": 0,
+                        "msg_count": 0,
+                        "msg_count_root": 0,
+                        "last_viewed_at": 0
+                    },
+                    {
+                        "name": "ratione-1",
+                        "roles": "channel_admin channel_user",
+                        "notify_props": {
+                            "desktop": "default",
+                            "mobile": "default",
+                            "mark_unread": "all"
+                        },
+                        "favorite": false,
+                        "mention_count": 0,
+                        "mention_count_root": 0,
+                        "urgend_mention_count": 0,
+                        "msg_count": 0,
+                        "msg_count_root": 0,
+                        "last_viewed_at": 0
+                    },
+                    {
+                        "name": "minus-6",
+                        "roles": "channel_user",
+                        "notify_props": {
+                            "desktop": "default",
+                            "mobile": "default",
+                            "mark_unread": "all"
+                        },
+                        "favorite": false,
+                        "mention_count": 0,
+                        "mention_count_root": 0,
+                        "urgend_mention_count": 0,
+                        "msg_count": 0,
+                        "msg_count_root": 0,
+                        "last_viewed_at": 0
+                    },
+                    {
+                        "name": "town-square",
+                        "roles": "channel_user",
+                        "notify_props": {
+                            "desktop": "default",
+                            "mobile": "default",
+                            "mark_unread": "all"
+                        },
+                        "favorite": false,
+                        "mention_count": 0,
+                        "mention_count_root": 0,
+                        "urgend_mention_count": 0,
+                        "msg_count": 0,
+                        "msg_count_root": 0,
+                        "last_viewed_at": 0
+                    }
+                ]
+            }
+        ],
+        "military_time": "false",
+        "link_previews": "false",
+        "message_display": "clean",
+        "channel_display_mode": "full",
+        "tutorial_step": "999",
+        "notify_props": {
+            "desktop": "mention",
+            "desktop_sound": "true",
+            "email": "true",
+            "mobile": "mention",
+            "mobile_push_status": "online",
+            "channel": "true",
+            "comments": "never",
+            "mention_keys": ""
+        }
+    }
+}

zerver/tests/fixtures/mattermost_v11.1.0_fixtures/exported_object_samples/version.json

@@ -0,0 +1,9 @@
+{
+    "type": "version",
+    "version": 1,
+    "info": {
+        "generator": "mattermost-server",
+        "version": "11.1.0 (d3ed703dc8330684952eb8d49a375bac6ea7b0c6, enterprise: false)",
+        "created": "2026-01-21T20:36:00.923742433+07:00"
+    }
+}

zerver/tests/fixtures/mattermost_v11.1.0_fixtures/raw_mmctl_output/data/20260123/teams/noteam/channels/os55d37hwjb87b7rnuucic7ngh/users/ouiyzynxmtfcmgret6by3freqc/wj79zfkun3f63k5esktmnrgcec/text file.txt

@@ -0,0 +1 @@
+text

zerver/tests/fixtures/message_link_test_cases.json

@@ -0,0 +1,57 @@
+[
+    {
+        "name": "dm_message_link",
+        "message_link": "#narrow/dm/9,15-dm/near/43",
+        "expected_output": true
+    },
+    {
+        "name": "group_message_link",
+        "message_link": "#narrow/dm/9,16,15-group/near/68",
+        "expected_output": true
+    },
+    {
+        "name": "stream_message_link",
+        "message_link": "#narrow/channel/8-design/topic/desktop/near/82",
+        "expected_output": true
+    },
+    {
+        "name": "stream_link",
+        "message_link": "#narrow/channel/8-design",
+        "expected_output": false
+    },
+    {
+        "name": "topic_link",
+        "message_link": "#narrow/channel/8-design/topic/desktop",
+        "expected_output": false
+    },
+    {
+        "name": "dm_link",
+        "message_link": "#narrow/dm/15-John",
+        "expected_output": false
+    },
+    {
+        "name": "search_link",
+        "message_link": "#narrow/search/database",
+        "expected_output": false
+    },
+    {
+        "name": "different_server_message_link",
+        "message_link": "https://fakechat.zulip.org/#narrow/dm/8,1848,2369-group/near/1717378",
+        "expected_output": false
+    },
+    {
+        "name": "drafts_link",
+        "message_link": "#drafts",
+        "expected_output": false
+    },
+    {
+        "name": "empty_link",
+        "message_link": "#",
+        "expected_output": false
+    },
+    {
+        "name": "non_zulip_link",
+        "message_link": "https://www.google.com",
+        "expected_output": false
+    }
+]

zerver/tests/fixtures/microsoft_graph_api_response_fixtures/directory_roles.json

@@ -0,0 +1,68 @@
+{
+    "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#directoryRoles",
+    "value": [
+        {
+            "id": "240d3723-f4d5-4e70-aa3b-2e574c4f6ea3",
+            "deletedDateTime": null,
+            "description": "Can manage all aspects of Microsoft Entra ID and Microsoft services that use Microsoft Entra identities.",
+            "displayName": "Global Administrator",
+            "roleTemplateId": "62e90394-69f5-4237-9190-012177145e10"
+        },
+        {
+            "id": "28356285-b6a8-4c23-ada1-f68dc07a826b",
+            "deletedDateTime": null,
+            "description": "Can manage all aspects of the Exchange product.",
+            "displayName": "Exchange Administrator",
+            "roleTemplateId": "29232cdf-9323-42fd-ade2-1d097af3e4de"
+        },
+        {
+            "id": "4574a009-f705-49c5-bab1-b1f14682c631",
+            "deletedDateTime": null,
+            "description": "Can manage all aspects of the SharePoint service.",
+            "displayName": "SharePoint Administrator",
+            "roleTemplateId": "f28a1f50-f6e7-4571-818b-6a12f2af6b6c"
+        },
+        {
+            "id": "68c4bac3-df9b-4dd7-ba8e-380fb5c065b7",
+            "deletedDateTime": null,
+            "description": "Can perform common billing related tasks like updating payment information.",
+            "displayName": "Billing Administrator",
+            "roleTemplateId": "b0f54661-2d74-4c50-afa3-1ec803f12efe"
+        },
+        {
+            "id": "82bb9c5f-0911-40c1-ab29-944262f9835e",
+            "deletedDateTime": null,
+            "description": "Can manage the Microsoft Teams service.",
+            "displayName": "Teams Administrator",
+            "roleTemplateId": "69091246-20e8-4a56-aa4d-066075b2a7a8"
+        },
+        {
+            "id": "b2dfd9f5-106f-4410-a400-a1be2a43741e",
+            "deletedDateTime": null,
+            "description": "Can manage all aspects of users and groups, including resetting passwords for limited admins.",
+            "displayName": "User Administrator",
+            "roleTemplateId": "fe930be7-5e62-47db-91af-98c3a49a38b1"
+        },
+        {
+            "id": "bf811cd7-8f47-450a-8dfb-70af1e523829",
+            "deletedDateTime": null,
+            "description": "Can read service health information and manage support tickets.",
+            "displayName": "Service Support Administrator",
+            "roleTemplateId": "f023fd81-a637-4b56-95fd-791ac0226033"
+        },
+        {
+            "id": "d94becae-0962-4437-b10a-6fd56dd822af",
+            "deletedDateTime": null,
+            "description": "Can reset passwords for non-administrators and Helpdesk Administrators.",
+            "displayName": "Helpdesk Administrator",
+            "roleTemplateId": "729827e3-9c14-49f7-bb1b-9608f156bbb8"
+        },
+        {
+            "id": "f65976b3-a936-4ed4-88b2-ec5987bbe19f",
+            "deletedDateTime": null,
+            "description": "Can read everything that a Global Administrator can, but not update anything.",
+            "displayName": "Global Reader",
+            "roleTemplateId": "f2ef992c-3afb-46b9-b7cf-a126ee74c451"
+        }
+    ]
+}

zerver/tests/fixtures/microsoft_graph_api_response_fixtures/directory_roles_global_administrator_members.json

@@ -0,0 +1,35 @@
+{
+  "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#directoryObjects",
+  "value": [
+    {
+      "@odata.type": "#microsoft.graph.user",
+      "id": "3c6ee395-529d-4681-b5f7-582c707570f6",
+      "businessPhones": [
+        "16508158245"
+      ],
+      "displayName": "Alya Abbott",
+      "givenName": "Alya",
+      "jobTitle": null,
+      "mail": "alya@ZulipChat.onmicrosoft.com",
+      "mobilePhone": null,
+      "officeLocation": null,
+      "preferredLanguage": "en",
+      "surname": "Abbott",
+      "userPrincipalName": "alya@ZulipChat.onmicrosoft.com"
+    },
+    {
+      "@odata.type": "#microsoft.graph.user",
+      "id": "88cbf3c2-0810-4d32-aa19-863c12bf7be9",
+      "businessPhones": [],
+      "displayName": "Pieter K",
+      "givenName": "Pieter",
+      "jobTitle": null,
+      "mail": "pieterk@ZulipChat.onmicrosoft.com",
+      "mobilePhone": null,
+      "officeLocation": null,
+      "preferredLanguage": null,
+      "surname": "K",
+      "userPrincipalName": "pieterk@ZulipChat.onmicrosoft.com"
+    }
+  ]
+}

zerver/tests/fixtures/microsoft_graph_api_response_fixtures/paginated_users_member.json

@@ -0,0 +1,47 @@
+{
+    "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users",
+    "@odata.nextLink": "https://graph.microsoft.com/v1.0/users?$filter=userType+eq+%27Member%27&$top=3&$skiptoken=RFNwdAoAAQAAAAAAAAAAFAAAAAIjPrZtIj1IsyACv_n3ZLsBAAAAAAAAAAAAAAAAAAAXMS4yLjg0MC4xMTM1NTYuMS40LjIzMzEGAAAAAAABttbVt5Wq-0aI2xDyNlaWGwG9AAAAAQAAAAA",
+    "value": [
+        {
+            "businessPhones": [
+                "16508158245"
+            ],
+            "displayName": "Alya Abbott",
+            "givenName": "Alya",
+            "jobTitle": null,
+            "mail": "alya@ZulipChat.onmicrosoft.com",
+            "mobilePhone": null,
+            "officeLocation": null,
+            "preferredLanguage": "en",
+            "surname": "Abbott",
+            "userPrincipalName": "alya@ZulipChat.onmicrosoft.com",
+            "id": "3c6ee395-529d-4681-b5f7-582c707570f6"
+        },
+        {
+            "businessPhones": [],
+            "displayName": "Pieter K",
+            "givenName": "Pieter",
+            "jobTitle": null,
+            "mail": "pieterk@ZulipChat.onmicrosoft.com",
+            "mobilePhone": null,
+            "officeLocation": null,
+            "preferredLanguage": null,
+            "surname": "K",
+            "userPrincipalName": "pieterk@ZulipChat.onmicrosoft.com",
+            "id": "88cbf3c2-0810-4d32-aa19-863c12bf7be9"
+        },
+        {
+            "businessPhones": [],
+            "displayName": "Cordelia",
+            "givenName": "Cordelia",
+            "jobTitle": null,
+            "mail": "cordelia@ZulipChat.onmicrosoft.com",
+            "mobilePhone": null,
+            "officeLocation": null,
+            "preferredLanguage": null,
+            "surname": null,
+            "userPrincipalName": "cordelia@ZulipChat.onmicrosoft.com",
+            "id": "bcbf26d8-e24a-4298-b6fd-d2320ff09fa5"
+        }
+    ]
+}

zerver/tests/fixtures/microsoft_graph_api_response_fixtures/paginated_users_member_2.json

@@ -0,0 +1,31 @@
+{
+    "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users",
+    "value": [
+        {
+            "businessPhones": [],
+            "displayName": "zoe",
+            "givenName": "zoe",
+            "jobTitle": null,
+            "mail": "zoe@ZulipChat.onmicrosoft.com",
+            "mobilePhone": null,
+            "officeLocation": null,
+            "preferredLanguage": null,
+            "surname": null,
+            "userPrincipalName": "zoe@ZulipChat.onmicrosoft.com",
+            "id": "5dbe468a-1e96-4aaa-856d-cdf825081e11"
+        },
+        {
+            "businessPhones": [],
+            "displayName": "AARON",
+            "givenName": "AARON",
+            "jobTitle": "Business development specialist",
+            "mail": "aaron@ZulipChat.onmicrosoft.com",
+            "mobilePhone": null,
+            "officeLocation": null,
+            "preferredLanguage": null,
+            "surname": null,
+            "userPrincipalName": "aaron@ZulipChat.onmicrosoft.com",
+            "id": "4dbd4c6f-163d-40b7-901b-e86b2f2141ae"
+        }
+    ]
+}

zerver/tests/fixtures/microsoft_graph_api_response_fixtures/users_guest.json

@@ -0,0 +1,10 @@
+{
+    "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users",
+    "value": [
+        {
+            "displayName": "Guest guy",
+            "mail": "guest@example.com",
+            "id": "16741626-4cd8-46cc-bf36-42ecc2b5fdce"
+        }
+    ]
+}

zerver/tests/fixtures/microsoft_teams_fixtures/TeamsData_ZulipChat/meetings/questionsAndAnswers.json

@@ -0,0 +1 @@
+[]

zerver/tests/fixtures/microsoft_teams_fixtures/TeamsData_ZulipChat/teams/002145f2-eaba-4962-997d-6d841a9f50af/channels_002145f2-eaba-4962-997d-6d841a9f50af.json

@@ -0,0 +1,14 @@
+[
+  {
+    "Id": "19:9OOyLpkB8mEaoB17Z5CJx-RDBuMCZ5IZfuZVTCV97Bg1@thread.tacv2",
+    "CreatedDateTime": "2025-08-12T06:52:14.885Z",
+    "DisplayName": "General",
+    "Description": "social, general discussion, new members",
+    "IsFavoriteByDefault": null,
+    "Email": "Community@ZulipChat.onmicrosoft.com",
+    "TenantId": "af4acab6-6476-4c2f-bef2-ff6479dd3940",
+    "WebUrl": "https://teams.cloud.microsoft/l/channel/19%3A9OOyLpkB8mEaoB17Z5CJx-RDBuMCZ5IZfuZVTCV97Bg1%40thread.tacv2/Community?groupId=002145f2-eaba-4962-997d-6d841a9f50af\u0026tenantId=af4acab6-6476-4c2f-bef2-ff6479dd3940\u0026allowXTenantAccess=True\u0026ngc=True",
+    "MembershipType": "standard",
+    "IsArchived": false
+  }
+]

zerver/tests/fixtures/microsoft_teams_fixtures/TeamsData_ZulipChat/teams/002145f2-eaba-4962-997d-6d841a9f50af/groupEvents_002145f2-eaba-4962-997d-6d841a9f50af.json

@@ -0,0 +1 @@
+[]

zerver/tests/fixtures/microsoft_teams_fixtures/TeamsData_ZulipChat/teams/002145f2-eaba-4962-997d-6d841a9f50af/messages_002145f2-eaba-4962-997d-6d841a9f50af.json

@@ -0,0 +1,306 @@
+[
+  {
+    "Id": "1759320958611",
+    "Body": {
+      "ContentType": "html",
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+    "LastModifiedDateTime": "2025-10-13T06:48:25.757+00:00",
+    "LastEditedDateTime": null,
+    "DeletedDateTime": null,
+    "Subject": "File objects",
+    "Summary": null,
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+    "WebUrl": "https://teams.microsoft.com/l/message/19%3A9OOyLpkB8mEaoB17Z5CJx-RDBuMCZ5IZfuZVTCV97Bg1%40thread.tacv2/1760338105757?groupId=002145f2-eaba-4962-997d-6d841a9f50af\u0026tenantId=af4acab6-6476-4c2f-bef2-ff6479dd3940\u0026createdTime=1760338105757\u0026parentMessageId=1760338105757",
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+        "ContentType": "reference",
+        "ContentUrl": "https://zulipchat.sharepoint.com/sites/Community/Shared Documents/General/wp12245700.jpg",
+        "Content": null,
+        "Name": "wp12245700.jpg",
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+        "Name": "zlp_logo.png",
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+        "ContentUrl": "https://zulipchat.sharepoint.com/sites/Community/Shared Documents/General/zulip-export-j8zps83t.tar.gz",
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+        "ContentUrl": "https://zulipchat.sharepoint.com/sites/Community/Shared Documents/General/TeamsData2025-10-09.zip",
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+        "Name": "TeamsData2025-10-09.zip",
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+      },
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+      "MembersJoined": null,
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+      "TeamsAppUpgraded": null,
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+]

zerver/tests/fixtures/microsoft_teams_fixtures/TeamsData_ZulipChat/teams/002145f2-eaba-4962-997d-6d841a9f50af/retainedMessages_002145f2-eaba-4962-997d-6d841a9f50af.json

@@ -0,0 +1 @@
+[]

zerver/tests/fixtures/microsoft_teams_fixtures/TeamsData_ZulipChat/teams/002145f2-eaba-4962-997d-6d841a9f50af/teamInstalledApps_002145f2-eaba-4962-997d-6d841a9f50af.json

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+    "Id": "MDAyMTQ1ZjItZWFiYS00OTYyLTk5N2QtNmQ4NDFhOWY1MGFmIyNjb20ubWljcm9zb2Z0LnRlYW1zcGFjZS50YWIuZmlsZS5zdGF0aWN2aWV3ZXIudmlzaW8=",
+    "TeamsAppDefinition": {
+      "Id": "Y29tLm1pY3Jvc29mdC50ZWFtc3BhY2UudGFiLmZpbGUuc3RhdGljdmlld2VyLnZpc2lvIyMwLjEjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "com.microsoft.teamspace.tab.file.staticviewer.visio",
+      "AzureADAppId": null,
+      "DisplayName": "Visio"
+    }
+  },
+  {
+    "Id": "MDAyMTQ1ZjItZWFiYS00OTYyLTk5N2QtNmQ4NDFhOWY1MGFmIyNjb20ubWljcm9zb2Z0LnRlYW1zcGFjZS50YWIuZmlsZS5zdGF0aWN2aWV3ZXIud29yZA==",
+    "TeamsAppDefinition": {
+      "Id": "Y29tLm1pY3Jvc29mdC50ZWFtc3BhY2UudGFiLmZpbGUuc3RhdGljdmlld2VyLndvcmQjIzAuMSMjUHVibGlzaGVk",
+      "TeamsAppId": "com.microsoft.teamspace.tab.file.staticviewer.word",
+      "AzureADAppId": null,
+      "DisplayName": "Word"
+    }
+  },
+  {
+    "Id": "MDAyMTQ1ZjItZWFiYS00OTYyLTk5N2QtNmQ4NDFhOWY1MGFmIyNjb20ubWljcm9zb2Z0LnRlYW1zcGFjZS50YWIuZmlsZXMuc2hhcmVwb2ludA==",
+    "TeamsAppDefinition": {
+      "Id": "Y29tLm1pY3Jvc29mdC50ZWFtc3BhY2UudGFiLmZpbGVzLnNoYXJlcG9pbnQjIzAuMSMjUHVibGlzaGVk",
+      "TeamsAppId": "com.microsoft.teamspace.tab.files.sharepoint",
+      "AzureADAppId": null,
+      "DisplayName": "Document Library"
+    }
+  },
+  {
+    "Id": "MDAyMTQ1ZjItZWFiYS00OTYyLTk5N2QtNmQ4NDFhOWY1MGFmIyNjb20ubWljcm9zb2Z0LnRlYW1zcGFjZS50YWIubm90ZXM=",
+    "TeamsAppDefinition": {
+      "Id": "Y29tLm1pY3Jvc29mdC50ZWFtc3BhY2UudGFiLm5vdGVzIyMwLjEjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "com.microsoft.teamspace.tab.notes",
+      "AzureADAppId": null,
+      "DisplayName": "OneNote (Legacy)"
+    }
+  },
+  {
+    "Id": "MDAyMTQ1ZjItZWFiYS00OTYyLTk5N2QtNmQ4NDFhOWY1MGFmIyNjb20ubWljcm9zb2Z0LnRlYW1zcGFjZS50YWIucGxhbm5lcg==",
+    "TeamsAppDefinition": {
+      "Id": "Y29tLm1pY3Jvc29mdC50ZWFtc3BhY2UudGFiLnBsYW5uZXIjIzEuMy4xNiMjUHVibGlzaGVk",
+      "TeamsAppId": "com.microsoft.teamspace.tab.planner",
+      "AzureADAppId": null,
+      "DisplayName": "Planner"
+    }
+  },
+  {
+    "Id": "MDAyMTQ1ZjItZWFiYS00OTYyLTk5N2QtNmQ4NDFhOWY1MGFmIyNjb20ubWljcm9zb2Z0LnRlYW1zcGFjZS50YWIucG93ZXJiaQ==",
+    "TeamsAppDefinition": {
+      "Id": "Y29tLm1pY3Jvc29mdC50ZWFtc3BhY2UudGFiLnBvd2VyYmkjIzAuMSMjUHVibGlzaGVk",
+      "TeamsAppId": "com.microsoft.teamspace.tab.powerbi",
+      "AzureADAppId": null,
+      "DisplayName": "Power BI (Legacy)"
+    }
+  },
+  {
+    "Id": "MDAyMTQ1ZjItZWFiYS00OTYyLTk5N2QtNmQ4NDFhOWY1MGFmIyNjb20ubWljcm9zb2Z0LnRlYW1zcGFjZS50YWIud2Vi",
+    "TeamsAppDefinition": {
+      "Id": "Y29tLm1pY3Jvc29mdC50ZWFtc3BhY2UudGFiLndlYiMjMC4yLjAjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "com.microsoft.teamspace.tab.web",
+      "AzureADAppId": null,
+      "DisplayName": "Website"
+    }
+  },
+  {
+    "Id": "MDAyMTQ1ZjItZWFiYS00OTYyLTk5N2QtNmQ4NDFhOWY1MGFmIyNjb20ubWljcm9zb2Z0LnRlYW1zcGFjZS50YWIud2lraQ==",
+    "TeamsAppDefinition": {
+      "Id": "Y29tLm1pY3Jvc29mdC50ZWFtc3BhY2UudGFiLndpa2kjIzEuMC4zIyNQdWJsaXNoZWQ=",
+      "TeamsAppId": "com.microsoft.teamspace.tab.wiki",
+      "AzureADAppId": null,
+      "DisplayName": "Wiki"
+    }
+  },
+  {
+    "Id": "MDAyMTQ1ZjItZWFiYS00OTYyLTk5N2QtNmQ4NDFhOWY1MGFmIyNjb20ubWljcm9zb2Z0c3RyZWFtLmVtYmVkLnNreXBldGVhbXN0YWI=",
+    "TeamsAppDefinition": {
+      "Id": "Y29tLm1pY3Jvc29mdHN0cmVhbS5lbWJlZC5za3lwZXRlYW1zdGFiIyMyLjAuMTUjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "com.microsoftstream.embed.skypeteamstab",
+      "AzureADAppId": null,
+      "DisplayName": "Clipchamp"
+    }
+  },
+  {
+    "Id": "MDAyMTQ1ZjItZWFiYS00OTYyLTk5N2QtNmQ4NDFhOWY1MGFmIyNkNTMwNTgwMS1kOWM0LTRkZDEtYWFkZi1kM2NkYjBkOWQ4OTM=",
+    "TeamsAppDefinition": {
+      "Id": "ZDUzMDU4MDEtZDljNC00ZGQxLWFhZGYtZDNjZGIwZDlkODkzIyMwLjAuMjEjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "d5305801-d9c4-4dd1-aadf-d3cdb0d9d893",
+      "AzureADAppId": null,
+      "DisplayName": "Camera"
+    }
+  },
+  {
+    "Id": "MDAyMTQ1ZjItZWFiYS00OTYyLTk5N2QtNmQ4NDFhOWY1MGFmIyNkNzk1OGFkZi1mNDE5LTQ2ZmEtOTQxYi0xYjk0NjQ5N2VmODQ=",
+    "TeamsAppDefinition": {
+      "Id": "ZDc5NThhZGYtZjQxOS00NmZhLTk0MWItMWI5NDY0OTdlZjg0IyMxLjIuMCMjUHVibGlzaGVk",
+      "TeamsAppId": "d7958adf-f419-46fa-941b-1b946497ef84",
+      "AzureADAppId": null,
+      "DisplayName": "Word"
+    }
+  },
+  {
+    "Id": "MDAyMTQ1ZjItZWFiYS00OTYyLTk5N2QtNmQ4NDFhOWY1MGFmIyNkNzk1OGFkZi1mNDE5LTQ2ZmEtOTQxYi0xYjk0NjQ5N2VmOTU=",
+    "TeamsAppDefinition": {
+      "Id": "ZDc5NThhZGYtZjQxOS00NmZhLTk0MWItMWI5NDY0OTdlZjk1IyMxLjAuOCMjUHVibGlzaGVk",
+      "TeamsAppId": "d7958adf-f419-46fa-941b-1b946497ef95",
+      "AzureADAppId": null,
+      "DisplayName": "Visio"
+    }
+  },
+  {
+    "Id": "MDAyMTQ1ZjItZWFiYS00OTYyLTk5N2QtNmQ4NDFhOWY1MGFmIyNkODMyYTMzZi0yOGMyLTQ5NjktOGFkMC00ZmVlNjgxZGM1YjQ=",
+    "TeamsAppDefinition": {
+      "Id": "ZDgzMmEzM2YtMjhjMi00OTY5LThhZDAtNGZlZTY4MWRjNWI0IyMxLjIuMTIjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "d832a33f-28c2-4969-8ad0-4fee681dc5b4",
+      "AzureADAppId": null,
+      "DisplayName": "Praise"
+    }
+  },
+  {
+    "Id": "MDAyMTQ1ZjItZWFiYS00OTYyLTk5N2QtNmQ4NDFhOWY1MGFmIyNlYjYyZDA4Mi0yYzBhLTQ2NzItOTI1Mi1lOGU0NTZmMTkyYjE=",
+    "TeamsAppDefinition": {
+      "Id": "ZWI2MmQwODItMmMwYS00NjcyLTkyNTItZThlNDU2ZjE5MmIxIyMxLjAuOCMjUHVibGlzaGVk",
+      "TeamsAppId": "eb62d082-2c0a-4672-9252-e8e456f192b1",
+      "AzureADAppId": null,
+      "DisplayName": "Recommendations"
+    }
+  },
+  {
+    "Id": "MDAyMTQ1ZjItZWFiYS00OTYyLTk5N2QtNmQ4NDFhOWY1MGFmIyNhMTk5ZDQ1Yy1hNjQ2LTRhZDMtYjRhOS1jYTI4ODA0NmJiMTc=",
+    "TeamsAppDefinition": {
+      "Id": "YTE5OWQ0NWMtYTY0Ni00YWQzLWI0YTktY2EyODgwNDZiYjE3IyMxLjAjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "a199d45c-a646-4ad3-b4a9-ca288046bb17",
+      "AzureADAppId": null,
+      "DisplayName": "Datadog (Legacy)"
+    }
+  },
+  {
+    "Id": "MDAyMTQ1ZjItZWFiYS00OTYyLTk5N2QtNmQ4NDFhOWY1MGFmIyNmYjI3OTZmYS0yNWY0LTRhZmMtOGU1NS02ODM2YWYyYzQ5MjE=",
+    "TeamsAppDefinition": {
+      "Id": "ZmIyNzk2ZmEtMjVmNC00YWZjLThlNTUtNjgzNmFmMmM0OTIxIyMxLjAjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "fb2796fa-25f4-4afc-8e55-6836af2c4921",
+      "AzureADAppId": null,
+      "DisplayName": "Asana (Legacy)"
+    }
+  }
+]

zerver/tests/fixtures/microsoft_teams_fixtures/TeamsData_ZulipChat/teams/002145f2-eaba-4962-997d-6d841a9f50af/teamMembers_002145f2-eaba-4962-997d-6d841a9f50af.json

@@ -0,0 +1,18 @@
+[
+  {
+    "Name": "Pieter K",
+    "UserId": "88cbf3c2-0810-4d32-aa19-863c12bf7be9",
+    "UserName": "pieterk@ZulipChat.onmicrosoft.com",
+    "Title": null,
+    "Location": null,
+    "Role": null
+  },
+  {
+    "Name": "Guest guy",
+    "UserId": "16741626-4cd8-46cc-bf36-42ecc2b5fdce",
+    "UserName": "guest_example.com#EXT#@ZulipChat.onmicrosoft.com",
+    "Title": null,
+    "Location": null,
+    "Role": null
+  }
+]

zerver/tests/fixtures/microsoft_teams_fixtures/TeamsData_ZulipChat/teams/1d513e46-d8cd-41db-b84f-381fe5730794/channels_1d513e46-d8cd-41db-b84f-381fe5730794.json

@@ -0,0 +1,26 @@
+[
+  {
+    "Id": "19:f0088fc2bb264dfe9a7a7924a23c7252@thread.tacv2",
+    "CreatedDateTime": "2025-08-12T12:44:49.635Z",
+    "DisplayName": "Text formattings",
+    "Description": null,
+    "IsFavoriteByDefault": true,
+    "Email": null,
+    "TenantId": "af4acab6-6476-4c2f-bef2-ff6479dd3940",
+    "WebUrl": "https://teams.cloud.microsoft/l/channel/19%3Af0088fc2bb264dfe9a7a7924a23c7252%40thread.tacv2/Text%20formattings?groupId=1d513e46-d8cd-41db-b84f-381fe5730794\u0026tenantId=af4acab6-6476-4c2f-bef2-ff6479dd3940\u0026allowXTenantAccess=True\u0026ngc=True",
+    "MembershipType": "standard",
+    "IsArchived": false
+  },
+  {
+    "Id": "19:vYdeQme8PVAnebTgrsgGoC-zluWAfK5Gx_VNtSrLzjQ1@thread.tacv2",
+    "CreatedDateTime": "2025-08-12T05:19:04.08Z",
+    "DisplayName": "General",
+    "Description": "Kandra Labs",
+    "IsFavoriteByDefault": null,
+    "Email": "KandraLabs@ZulipChat.onmicrosoft.com",
+    "TenantId": "af4acab6-6476-4c2f-bef2-ff6479dd3940",
+    "WebUrl": "https://teams.cloud.microsoft/l/channel/19%3AvYdeQme8PVAnebTgrsgGoC-zluWAfK5Gx_VNtSrLzjQ1%40thread.tacv2/Kandra%20Labs?groupId=1d513e46-d8cd-41db-b84f-381fe5730794\u0026tenantId=af4acab6-6476-4c2f-bef2-ff6479dd3940\u0026allowXTenantAccess=True\u0026ngc=True",
+    "MembershipType": "standard",
+    "IsArchived": false
+  }
+]

zerver/tests/fixtures/microsoft_teams_fixtures/TeamsData_ZulipChat/teams/1d513e46-d8cd-41db-b84f-381fe5730794/groupEvents_1d513e46-d8cd-41db-b84f-381fe5730794.json

@@ -0,0 +1 @@
+[]

zerver/tests/fixtures/microsoft_teams_fixtures/TeamsData_ZulipChat/teams/1d513e46-d8cd-41db-b84f-381fe5730794/retainedMessages_1d513e46-d8cd-41db-b84f-381fe5730794.json

@@ -0,0 +1 @@
+[]

zerver/tests/fixtures/microsoft_teams_fixtures/TeamsData_ZulipChat/teams/1d513e46-d8cd-41db-b84f-381fe5730794/teamInstalledApps_1d513e46-d8cd-41db-b84f-381fe5730794.json

@@ -0,0 +1,542 @@
+[
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyMxNGQ2OTYyZC02ZWViLTRmNDgtODg5MC1kZTU1NDU0YmIxMzY=",
+    "TeamsAppDefinition": {
+      "Id": "MTRkNjk2MmQtNmVlYi00ZjQ4LTg4OTAtZGU1NTQ1NGJiMTM2IyMxLjAjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "14d6962d-6eeb-4f48-8890-de55454bb136",
+      "AzureADAppId": null,
+      "DisplayName": "Activity"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyMyMGMzNDQwZC1jNjdlLTQ0MjAtOWY4MC0wZTUwYzM5NjkzZGY=",
+    "TeamsAppDefinition": {
+      "Id": "MjBjMzQ0MGQtYzY3ZS00NDIwLTlmODAtMGU1MGMzOTY5M2RmIyMxLjAjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "20c3440d-c67e-4420-9f80-0e50c39693df",
+      "AzureADAppId": null,
+      "DisplayName": "Calling"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyMyYTg0OTE5Zi01OWQ4LTQ0NDEtYTk3NS0yYThjMjY0M2I3NDE=",
+    "TeamsAppDefinition": {
+      "Id": "MmE4NDkxOWYtNTlkOC00NDQxLWE5NzUtMmE4YzI2NDNiNzQxIyMxLjAuNSMjUHVibGlzaGVk",
+      "TeamsAppId": "2a84919f-59d8-4441-a975-2a8c2643b741",
+      "AzureADAppId": null,
+      "DisplayName": "Teams"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyMzNGIwMTg1MS1jMTNkLTQ2MDQtYmIzYi01ZGUxZWNiZjAyODg=",
+    "TeamsAppDefinition": {
+      "Id": "MzRiMDE4NTEtYzEzZC00NjA0LWJiM2ItNWRlMWVjYmYwMjg4IyMxLjAjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "34b01851-c13d-4604-bb3b-5de1ecbf0288",
+      "AzureADAppId": null,
+      "DisplayName": "Saved"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyM4NmZjZDQ5Yi02MWEyLTQ3MDEtYjc3MS01NDcyOGNkMjkxZmI=",
+    "TeamsAppDefinition": {
+      "Id": "ODZmY2Q0OWItNjFhMi00NzAxLWI3NzEtNTQ3MjhjZDI5MWZiIyMxLjAjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "86fcd49b-61a2-4701-b771-54728cd291fb",
+      "AzureADAppId": null,
+      "DisplayName": "Chat"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyNhMmRhODc2OC05NWQ1LTQxOWUtOTQ0MS0zYjUzOTg2NWIxMTg=",
+    "TeamsAppDefinition": {
+      "Id": "YTJkYTg3NjgtOTVkNS00MTllLTk0NDEtM2I1Mzk4NjViMTE4IyMxLjAjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "a2da8768-95d5-419e-9441-3b539865b118",
+      "AzureADAppId": null,
+      "DisplayName": "Search"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyNhNjNmNzAxMi04Y2M5LTQyZDUtOTljMy1lMzVmNTI2ZmFiMTc=",
+    "TeamsAppDefinition": {
+      "Id": "YTYzZjcwMTItOGNjOS00MmQ1LTk5YzMtZTM1ZjUyNmZhYjE3IyMxLjIuNCMjUHVibGlzaGVk",
+      "TeamsAppId": "a63f7012-8cc9-42d5-99c3-e35f526fab17",
+      "AzureADAppId": null,
+      "DisplayName": "Meet"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyNlZjU2YzBkZS0zNmZjLTRlZjgtYjQxNy0zZDgyYmE5ZDA3M2M=",
+    "TeamsAppDefinition": {
+      "Id": "ZWY1NmMwZGUtMzZmYy00ZWY4LWI0MTctM2Q4MmJhOWQwNzNjIyMxLjIuMjUjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "ef56c0de-36fc-4ef8-b417-3d82ba9d073c",
+      "AzureADAppId": null,
+      "DisplayName": "Calendar"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyMwMDAwMTAxNi1kZTA1LTQ5MmUtOTEwNi00ODI4ZmM4YTg2ODc=",
+    "TeamsAppDefinition": {
+      "Id": "MDAwMDEwMTYtZGUwNS00OTJlLTkxMDYtNDgyOGZjOGE4Njg3IyMxLjAuMiMjUHVibGlzaGVk",
+      "TeamsAppId": "00001016-de05-492e-9106-4828fc8a8687",
+      "AzureADAppId": null,
+      "DisplayName": "Power Automate Actions"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyMwNDA4ODBmNC0wYzY4LTRjMzgtODgyMS1kNWVmZDJiNmRkYmU=",
+    "TeamsAppDefinition": {
+      "Id": "MDQwODgwZjQtMGM2OC00YzM4LTg4MjEtZDVlZmQyYjZkZGJlIyMxLjAuMiMjUHVibGlzaGVk",
+      "TeamsAppId": "040880f4-0c68-4c38-8821-d5efd2b6ddbe",
+      "AzureADAppId": null,
+      "DisplayName": "Milestones"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyMwYWUzNWIzNi0wZmQ3LTQyMmUtODA1Yi1kNTNhZjE1NzkwOTM=",
+    "TeamsAppDefinition": {
+      "Id": "MGFlMzViMzYtMGZkNy00MjJlLTgwNWItZDUzYWYxNTc5MDkzIyMxLjIuNCMjUHVibGlzaGVk",
+      "TeamsAppId": "0ae35b36-0fd7-422e-805b-d53af1579093",
+      "AzureADAppId": null,
+      "DisplayName": "SharePoint Pages"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyMwZDgyMGVjZC1kZWYyLTQyOTctYWRhZC03ODA1NmNkZTdjNzg=",
+    "TeamsAppDefinition": {
+      "Id": "MGQ4MjBlY2QtZGVmMi00Mjk3LWFkYWQtNzgwNTZjZGU3Yzc4IyMyLjAuMTEjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "0d820ecd-def2-4297-adad-78056cde7c78",
+      "AzureADAppId": null,
+      "DisplayName": "OneNote"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyMxYzI1NmE2NS04M2E2LTRiNWMtOWNjZi03OGY4YWZiNmYxZTg=",
+    "TeamsAppDefinition": {
+      "Id": "MWMyNTZhNjUtODNhNi00YjVjLTljY2YtNzhmOGFmYjZmMWU4IyMxLjIuMCMjUHVibGlzaGVk",
+      "TeamsAppId": "1c256a65-83a6-4b5c-9ccf-78f8afb6f1e8",
+      "AzureADAppId": null,
+      "DisplayName": "Excel"
+    }
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+      "TeamsAppId": "com.microsoft.teamspace.tab.files.sharepoint",
+      "AzureADAppId": null,
+      "DisplayName": "Document Library"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyNjb20ubWljcm9zb2Z0LnRlYW1zcGFjZS50YWIubm90ZXM=",
+    "TeamsAppDefinition": {
+      "Id": "Y29tLm1pY3Jvc29mdC50ZWFtc3BhY2UudGFiLm5vdGVzIyMwLjEjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "com.microsoft.teamspace.tab.notes",
+      "AzureADAppId": null,
+      "DisplayName": "OneNote (Legacy)"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyNjb20ubWljcm9zb2Z0LnRlYW1zcGFjZS50YWIucGxhbm5lcg==",
+    "TeamsAppDefinition": {
+      "Id": "Y29tLm1pY3Jvc29mdC50ZWFtc3BhY2UudGFiLnBsYW5uZXIjIzEuMy4xNiMjUHVibGlzaGVk",
+      "TeamsAppId": "com.microsoft.teamspace.tab.planner",
+      "AzureADAppId": null,
+      "DisplayName": "Planner"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyNjb20ubWljcm9zb2Z0LnRlYW1zcGFjZS50YWIucG93ZXJiaQ==",
+    "TeamsAppDefinition": {
+      "Id": "Y29tLm1pY3Jvc29mdC50ZWFtc3BhY2UudGFiLnBvd2VyYmkjIzAuMSMjUHVibGlzaGVk",
+      "TeamsAppId": "com.microsoft.teamspace.tab.powerbi",
+      "AzureADAppId": null,
+      "DisplayName": "Power BI (Legacy)"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyNjb20ubWljcm9zb2Z0LnRlYW1zcGFjZS50YWIud2Vi",
+    "TeamsAppDefinition": {
+      "Id": "Y29tLm1pY3Jvc29mdC50ZWFtc3BhY2UudGFiLndlYiMjMC4yLjAjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "com.microsoft.teamspace.tab.web",
+      "AzureADAppId": null,
+      "DisplayName": "Website"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyNjb20ubWljcm9zb2Z0LnRlYW1zcGFjZS50YWIud2lraQ==",
+    "TeamsAppDefinition": {
+      "Id": "Y29tLm1pY3Jvc29mdC50ZWFtc3BhY2UudGFiLndpa2kjIzEuMC4zIyNQdWJsaXNoZWQ=",
+      "TeamsAppId": "com.microsoft.teamspace.tab.wiki",
+      "AzureADAppId": null,
+      "DisplayName": "Wiki"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyNjb20ubWljcm9zb2Z0c3RyZWFtLmVtYmVkLnNreXBldGVhbXN0YWI=",
+    "TeamsAppDefinition": {
+      "Id": "Y29tLm1pY3Jvc29mdHN0cmVhbS5lbWJlZC5za3lwZXRlYW1zdGFiIyMyLjAuMTUjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "com.microsoftstream.embed.skypeteamstab",
+      "AzureADAppId": null,
+      "DisplayName": "Clipchamp"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyNkNTMwNTgwMS1kOWM0LTRkZDEtYWFkZi1kM2NkYjBkOWQ4OTM=",
+    "TeamsAppDefinition": {
+      "Id": "ZDUzMDU4MDEtZDljNC00ZGQxLWFhZGYtZDNjZGIwZDlkODkzIyMwLjAuMjEjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "d5305801-d9c4-4dd1-aadf-d3cdb0d9d893",
+      "AzureADAppId": null,
+      "DisplayName": "Camera"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyNkNzk1OGFkZi1mNDE5LTQ2ZmEtOTQxYi0xYjk0NjQ5N2VmODQ=",
+    "TeamsAppDefinition": {
+      "Id": "ZDc5NThhZGYtZjQxOS00NmZhLTk0MWItMWI5NDY0OTdlZjg0IyMxLjIuMCMjUHVibGlzaGVk",
+      "TeamsAppId": "d7958adf-f419-46fa-941b-1b946497ef84",
+      "AzureADAppId": null,
+      "DisplayName": "Word"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyNkNzk1OGFkZi1mNDE5LTQ2ZmEtOTQxYi0xYjk0NjQ5N2VmOTU=",
+    "TeamsAppDefinition": {
+      "Id": "ZDc5NThhZGYtZjQxOS00NmZhLTk0MWItMWI5NDY0OTdlZjk1IyMxLjAuOCMjUHVibGlzaGVk",
+      "TeamsAppId": "d7958adf-f419-46fa-941b-1b946497ef95",
+      "AzureADAppId": null,
+      "DisplayName": "Visio"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyNkODMyYTMzZi0yOGMyLTQ5NjktOGFkMC00ZmVlNjgxZGM1YjQ=",
+    "TeamsAppDefinition": {
+      "Id": "ZDgzMmEzM2YtMjhjMi00OTY5LThhZDAtNGZlZTY4MWRjNWI0IyMxLjIuMTIjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "d832a33f-28c2-4969-8ad0-4fee681dc5b4",
+      "AzureADAppId": null,
+      "DisplayName": "Praise"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyNlYjYyZDA4Mi0yYzBhLTQ2NzItOTI1Mi1lOGU0NTZmMTkyYjE=",
+    "TeamsAppDefinition": {
+      "Id": "ZWI2MmQwODItMmMwYS00NjcyLTkyNTItZThlNDU2ZjE5MmIxIyMxLjAuOCMjUHVibGlzaGVk",
+      "TeamsAppId": "eb62d082-2c0a-4672-9252-e8e456f192b1",
+      "AzureADAppId": null,
+      "DisplayName": "Recommendations"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyNhMTk5ZDQ1Yy1hNjQ2LTRhZDMtYjRhOS1jYTI4ODA0NmJiMTc=",
+    "TeamsAppDefinition": {
+      "Id": "YTE5OWQ0NWMtYTY0Ni00YWQzLWI0YTktY2EyODgwNDZiYjE3IyMxLjAjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "a199d45c-a646-4ad3-b4a9-ca288046bb17",
+      "AzureADAppId": null,
+      "DisplayName": "Datadog (Legacy)"
+    }
+  },
+  {
+    "Id": "MWQ1MTNlNDYtZDhjZC00MWRiLWI4NGYtMzgxZmU1NzMwNzk0IyNmYjI3OTZmYS0yNWY0LTRhZmMtOGU1NS02ODM2YWYyYzQ5MjE=",
+    "TeamsAppDefinition": {
+      "Id": "ZmIyNzk2ZmEtMjVmNC00YWZjLThlNTUtNjgzNmFmMmM0OTIxIyMxLjAjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "fb2796fa-25f4-4afc-8e55-6836af2c4921",
+      "AzureADAppId": null,
+      "DisplayName": "Asana (Legacy)"
+    }
+  }
+]

zerver/tests/fixtures/microsoft_teams_fixtures/TeamsData_ZulipChat/teams/1d513e46-d8cd-41db-b84f-381fe5730794/teamMembers_1d513e46-d8cd-41db-b84f-381fe5730794.json

@@ -0,0 +1,50 @@
+[
+  {
+    "Name": "Alya Abbott",
+    "UserId": "3c6ee395-529d-4681-b5f7-582c707570f6",
+    "UserName": "alya@ZulipChat.onmicrosoft.com",
+    "Title": null,
+    "Location": null,
+    "Role": null
+  },
+  {
+    "Name": "Pieter K",
+    "UserId": "88cbf3c2-0810-4d32-aa19-863c12bf7be9",
+    "UserName": "pieterk@ZulipChat.onmicrosoft.com",
+    "Title": null,
+    "Location": null,
+    "Role": null
+  },
+  {
+    "Name": "Cordelia",
+    "UserId": "bcbf26d8-e24a-4298-b6fd-d2320ff09fa5",
+    "UserName": "cordelia@ZulipChat.onmicrosoft.com",
+    "Title": null,
+    "Location": null,
+    "Role": null
+  },
+  {
+    "Name": "zoe",
+    "UserId": "5dbe468a-1e96-4aaa-856d-cdf825081e11",
+    "UserName": "zoe@ZulipChat.onmicrosoft.com",
+    "Title": null,
+    "Location": null,
+    "Role": null
+  },
+  {
+    "Name": "AARON",
+    "UserId": "4dbd4c6f-163d-40b7-901b-e86b2f2141ae",
+    "UserName": "aaron@ZulipChat.onmicrosoft.com",
+    "Title": "Business development specialist",
+    "Location": null,
+    "Role": null
+  },
+  {
+    "Name": "Guest guy",
+    "UserId": "16741626-4cd8-46cc-bf36-42ecc2b5fdce",
+    "UserName": "guest_example.com#EXT#@ZulipChat.onmicrosoft.com",
+    "Title": null,
+    "Location": null,
+    "Role": null
+  }
+]

zerver/tests/fixtures/microsoft_teams_fixtures/TeamsData_ZulipChat/teams/2a00a70a-00f5-4da5-8618-8281194f0de0/channels_2a00a70a-00f5-4da5-8618-8281194f0de0.json

@@ -0,0 +1,14 @@
+[
+  {
+    "Id": "19:5XdBvtvU2IDCRqIjaamUL7C6eU3n3ZZSK4F1aOj1sq81@thread.tacv2",
+    "CreatedDateTime": "2025-08-12T05:31:49.486Z",
+    "DisplayName": "General",
+    "Description": "Contributors",
+    "IsFavoriteByDefault": null,
+    "Email": "Contributors@ZulipChat.onmicrosoft.com",
+    "TenantId": "af4acab6-6476-4c2f-bef2-ff6479dd3940",
+    "WebUrl": "https://teams.cloud.microsoft/l/channel/19%3A5XdBvtvU2IDCRqIjaamUL7C6eU3n3ZZSK4F1aOj1sq81%40thread.tacv2/Contributors?groupId=2a00a70a-00f5-4da5-8618-8281194f0de0\u0026tenantId=af4acab6-6476-4c2f-bef2-ff6479dd3940\u0026allowXTenantAccess=True\u0026ngc=True",
+    "MembershipType": "standard",
+    "IsArchived": false
+  }
+]

zerver/tests/fixtures/microsoft_teams_fixtures/TeamsData_ZulipChat/teams/2a00a70a-00f5-4da5-8618-8281194f0de0/groupEvents_2a00a70a-00f5-4da5-8618-8281194f0de0.json

@@ -0,0 +1 @@
+[]

zerver/tests/fixtures/microsoft_teams_fixtures/TeamsData_ZulipChat/teams/2a00a70a-00f5-4da5-8618-8281194f0de0/retainedMessages_2a00a70a-00f5-4da5-8618-8281194f0de0.json

@@ -0,0 +1 @@
+[]

zerver/tests/fixtures/microsoft_teams_fixtures/TeamsData_ZulipChat/teams/2a00a70a-00f5-4da5-8618-8281194f0de0/teamInstalledApps_2a00a70a-00f5-4da5-8618-8281194f0de0.json

@@ -0,0 +1,542 @@
+[
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyMxNGQ2OTYyZC02ZWViLTRmNDgtODg5MC1kZTU1NDU0YmIxMzY=",
+    "TeamsAppDefinition": {
+      "Id": "MTRkNjk2MmQtNmVlYi00ZjQ4LTg4OTAtZGU1NTQ1NGJiMTM2IyMxLjAjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "14d6962d-6eeb-4f48-8890-de55454bb136",
+      "AzureADAppId": null,
+      "DisplayName": "Activity"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyMyMGMzNDQwZC1jNjdlLTQ0MjAtOWY4MC0wZTUwYzM5NjkzZGY=",
+    "TeamsAppDefinition": {
+      "Id": "MjBjMzQ0MGQtYzY3ZS00NDIwLTlmODAtMGU1MGMzOTY5M2RmIyMxLjAjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "20c3440d-c67e-4420-9f80-0e50c39693df",
+      "AzureADAppId": null,
+      "DisplayName": "Calling"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyMyYTg0OTE5Zi01OWQ4LTQ0NDEtYTk3NS0yYThjMjY0M2I3NDE=",
+    "TeamsAppDefinition": {
+      "Id": "MmE4NDkxOWYtNTlkOC00NDQxLWE5NzUtMmE4YzI2NDNiNzQxIyMxLjAuNSMjUHVibGlzaGVk",
+      "TeamsAppId": "2a84919f-59d8-4441-a975-2a8c2643b741",
+      "AzureADAppId": null,
+      "DisplayName": "Teams"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyMzNGIwMTg1MS1jMTNkLTQ2MDQtYmIzYi01ZGUxZWNiZjAyODg=",
+    "TeamsAppDefinition": {
+      "Id": "MzRiMDE4NTEtYzEzZC00NjA0LWJiM2ItNWRlMWVjYmYwMjg4IyMxLjAjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "34b01851-c13d-4604-bb3b-5de1ecbf0288",
+      "AzureADAppId": null,
+      "DisplayName": "Saved"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyM4NmZjZDQ5Yi02MWEyLTQ3MDEtYjc3MS01NDcyOGNkMjkxZmI=",
+    "TeamsAppDefinition": {
+      "Id": "ODZmY2Q0OWItNjFhMi00NzAxLWI3NzEtNTQ3MjhjZDI5MWZiIyMxLjAjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "86fcd49b-61a2-4701-b771-54728cd291fb",
+      "AzureADAppId": null,
+      "DisplayName": "Chat"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyNhMmRhODc2OC05NWQ1LTQxOWUtOTQ0MS0zYjUzOTg2NWIxMTg=",
+    "TeamsAppDefinition": {
+      "Id": "YTJkYTg3NjgtOTVkNS00MTllLTk0NDEtM2I1Mzk4NjViMTE4IyMxLjAjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "a2da8768-95d5-419e-9441-3b539865b118",
+      "AzureADAppId": null,
+      "DisplayName": "Search"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyNhNjNmNzAxMi04Y2M5LTQyZDUtOTljMy1lMzVmNTI2ZmFiMTc=",
+    "TeamsAppDefinition": {
+      "Id": "YTYzZjcwMTItOGNjOS00MmQ1LTk5YzMtZTM1ZjUyNmZhYjE3IyMxLjIuNCMjUHVibGlzaGVk",
+      "TeamsAppId": "a63f7012-8cc9-42d5-99c3-e35f526fab17",
+      "AzureADAppId": null,
+      "DisplayName": "Meet"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyNlZjU2YzBkZS0zNmZjLTRlZjgtYjQxNy0zZDgyYmE5ZDA3M2M=",
+    "TeamsAppDefinition": {
+      "Id": "ZWY1NmMwZGUtMzZmYy00ZWY4LWI0MTctM2Q4MmJhOWQwNzNjIyMxLjIuMjUjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "ef56c0de-36fc-4ef8-b417-3d82ba9d073c",
+      "AzureADAppId": null,
+      "DisplayName": "Calendar"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyMwMDAwMTAxNi1kZTA1LTQ5MmUtOTEwNi00ODI4ZmM4YTg2ODc=",
+    "TeamsAppDefinition": {
+      "Id": "MDAwMDEwMTYtZGUwNS00OTJlLTkxMDYtNDgyOGZjOGE4Njg3IyMxLjAuMiMjUHVibGlzaGVk",
+      "TeamsAppId": "00001016-de05-492e-9106-4828fc8a8687",
+      "AzureADAppId": null,
+      "DisplayName": "Power Automate Actions"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyMwNDA4ODBmNC0wYzY4LTRjMzgtODgyMS1kNWVmZDJiNmRkYmU=",
+    "TeamsAppDefinition": {
+      "Id": "MDQwODgwZjQtMGM2OC00YzM4LTg4MjEtZDVlZmQyYjZkZGJlIyMxLjAuMiMjUHVibGlzaGVk",
+      "TeamsAppId": "040880f4-0c68-4c38-8821-d5efd2b6ddbe",
+      "AzureADAppId": null,
+      "DisplayName": "Milestones"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyMwYWUzNWIzNi0wZmQ3LTQyMmUtODA1Yi1kNTNhZjE1NzkwOTM=",
+    "TeamsAppDefinition": {
+      "Id": "MGFlMzViMzYtMGZkNy00MjJlLTgwNWItZDUzYWYxNTc5MDkzIyMxLjIuNCMjUHVibGlzaGVk",
+      "TeamsAppId": "0ae35b36-0fd7-422e-805b-d53af1579093",
+      "AzureADAppId": null,
+      "DisplayName": "SharePoint Pages"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyMwZDgyMGVjZC1kZWYyLTQyOTctYWRhZC03ODA1NmNkZTdjNzg=",
+    "TeamsAppDefinition": {
+      "Id": "MGQ4MjBlY2QtZGVmMi00Mjk3LWFkYWQtNzgwNTZjZGU3Yzc4IyMyLjAuMTEjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "0d820ecd-def2-4297-adad-78056cde7c78",
+      "AzureADAppId": null,
+      "DisplayName": "OneNote"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyMxYzI1NmE2NS04M2E2LTRiNWMtOWNjZi03OGY4YWZiNmYxZTg=",
+    "TeamsAppDefinition": {
+      "Id": "MWMyNTZhNjUtODNhNi00YjVjLTljY2YtNzhmOGFmYjZmMWU4IyMxLjIuMCMjUHVibGlzaGVk",
+      "TeamsAppId": "1c256a65-83a6-4b5c-9ccf-78f8afb6f1e8",
+      "AzureADAppId": null,
+      "DisplayName": "Excel"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyMxYzQzNDBkZS0yYTg1LTQwZTUtOGViMC00ZjI5NTM2ODk3OGI=",
+    "TeamsAppDefinition": {
+      "Id": "MWM0MzQwZGUtMmE4NS00MGU1LThlYjAtNGYyOTUzNjg5NzhiIyMxLjE5LjUjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "1c4340de-2a85-40e5-8eb0-4f295368978b",
+      "AzureADAppId": null,
+      "DisplayName": "Power BI"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyMyNmJjMjg3My02MDIzLTQ4MGMtYTExYi03NmI2NjYwNWNlOGM=",
+    "TeamsAppDefinition": {
+      "Id": "MjZiYzI4NzMtNjAyMy00ODBjLWExMWItNzZiNjY2MDVjZThjIyMxLjUuMyMjUHVibGlzaGVk",
+      "TeamsAppId": "26bc2873-6023-480c-a11b-76b66605ce8c",
+      "AzureADAppId": null,
+      "DisplayName": "Lists"
+    }
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+      "TeamsAppId": "com.microsoft.teamspace.tab.powerbi",
+      "AzureADAppId": null,
+      "DisplayName": "Power BI (Legacy)"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyNjb20ubWljcm9zb2Z0LnRlYW1zcGFjZS50YWIud2Vi",
+    "TeamsAppDefinition": {
+      "Id": "Y29tLm1pY3Jvc29mdC50ZWFtc3BhY2UudGFiLndlYiMjMC4yLjAjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "com.microsoft.teamspace.tab.web",
+      "AzureADAppId": null,
+      "DisplayName": "Website"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyNjb20ubWljcm9zb2Z0LnRlYW1zcGFjZS50YWIud2lraQ==",
+    "TeamsAppDefinition": {
+      "Id": "Y29tLm1pY3Jvc29mdC50ZWFtc3BhY2UudGFiLndpa2kjIzEuMC4zIyNQdWJsaXNoZWQ=",
+      "TeamsAppId": "com.microsoft.teamspace.tab.wiki",
+      "AzureADAppId": null,
+      "DisplayName": "Wiki"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyNjb20ubWljcm9zb2Z0c3RyZWFtLmVtYmVkLnNreXBldGVhbXN0YWI=",
+    "TeamsAppDefinition": {
+      "Id": "Y29tLm1pY3Jvc29mdHN0cmVhbS5lbWJlZC5za3lwZXRlYW1zdGFiIyMyLjAuMTUjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "com.microsoftstream.embed.skypeteamstab",
+      "AzureADAppId": null,
+      "DisplayName": "Clipchamp"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyNkNTMwNTgwMS1kOWM0LTRkZDEtYWFkZi1kM2NkYjBkOWQ4OTM=",
+    "TeamsAppDefinition": {
+      "Id": "ZDUzMDU4MDEtZDljNC00ZGQxLWFhZGYtZDNjZGIwZDlkODkzIyMwLjAuMjEjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "d5305801-d9c4-4dd1-aadf-d3cdb0d9d893",
+      "AzureADAppId": null,
+      "DisplayName": "Camera"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyNkNzk1OGFkZi1mNDE5LTQ2ZmEtOTQxYi0xYjk0NjQ5N2VmODQ=",
+    "TeamsAppDefinition": {
+      "Id": "ZDc5NThhZGYtZjQxOS00NmZhLTk0MWItMWI5NDY0OTdlZjg0IyMxLjIuMCMjUHVibGlzaGVk",
+      "TeamsAppId": "d7958adf-f419-46fa-941b-1b946497ef84",
+      "AzureADAppId": null,
+      "DisplayName": "Word"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyNkNzk1OGFkZi1mNDE5LTQ2ZmEtOTQxYi0xYjk0NjQ5N2VmOTU=",
+    "TeamsAppDefinition": {
+      "Id": "ZDc5NThhZGYtZjQxOS00NmZhLTk0MWItMWI5NDY0OTdlZjk1IyMxLjAuOCMjUHVibGlzaGVk",
+      "TeamsAppId": "d7958adf-f419-46fa-941b-1b946497ef95",
+      "AzureADAppId": null,
+      "DisplayName": "Visio"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyNkODMyYTMzZi0yOGMyLTQ5NjktOGFkMC00ZmVlNjgxZGM1YjQ=",
+    "TeamsAppDefinition": {
+      "Id": "ZDgzMmEzM2YtMjhjMi00OTY5LThhZDAtNGZlZTY4MWRjNWI0IyMxLjIuMTIjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "d832a33f-28c2-4969-8ad0-4fee681dc5b4",
+      "AzureADAppId": null,
+      "DisplayName": "Praise"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyNlYjYyZDA4Mi0yYzBhLTQ2NzItOTI1Mi1lOGU0NTZmMTkyYjE=",
+    "TeamsAppDefinition": {
+      "Id": "ZWI2MmQwODItMmMwYS00NjcyLTkyNTItZThlNDU2ZjE5MmIxIyMxLjAuOCMjUHVibGlzaGVk",
+      "TeamsAppId": "eb62d082-2c0a-4672-9252-e8e456f192b1",
+      "AzureADAppId": null,
+      "DisplayName": "Recommendations"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyNhMTk5ZDQ1Yy1hNjQ2LTRhZDMtYjRhOS1jYTI4ODA0NmJiMTc=",
+    "TeamsAppDefinition": {
+      "Id": "YTE5OWQ0NWMtYTY0Ni00YWQzLWI0YTktY2EyODgwNDZiYjE3IyMxLjAjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "a199d45c-a646-4ad3-b4a9-ca288046bb17",
+      "AzureADAppId": null,
+      "DisplayName": "Datadog (Legacy)"
+    }
+  },
+  {
+    "Id": "MmEwMGE3MGEtMDBmNS00ZGE1LTg2MTgtODI4MTE5NGYwZGUwIyNmYjI3OTZmYS0yNWY0LTRhZmMtOGU1NS02ODM2YWYyYzQ5MjE=",
+    "TeamsAppDefinition": {
+      "Id": "ZmIyNzk2ZmEtMjVmNC00YWZjLThlNTUtNjgzNmFmMmM0OTIxIyMxLjAjI1B1Ymxpc2hlZA==",
+      "TeamsAppId": "fb2796fa-25f4-4afc-8e55-6836af2c4921",
+      "AzureADAppId": null,
+      "DisplayName": "Asana (Legacy)"
+    }
+  }
+]

zerver/tests/fixtures/microsoft_teams_fixtures/TeamsData_ZulipChat/teams/2a00a70a-00f5-4da5-8618-8281194f0de0/teamMembers_2a00a70a-00f5-4da5-8618-8281194f0de0.json

@@ -0,0 +1,50 @@
+[
+  {
+    "Name": "Alya Abbott",
+    "UserId": "3c6ee395-529d-4681-b5f7-582c707570f6",
+    "UserName": "alya@ZulipChat.onmicrosoft.com",
+    "Title": null,
+    "Location": null,
+    "Role": null
+  },
+  {
+    "Name": "Pieter K",
+    "UserId": "88cbf3c2-0810-4d32-aa19-863c12bf7be9",
+    "UserName": "pieterk@ZulipChat.onmicrosoft.com",
+    "Title": null,
+    "Location": null,
+    "Role": null
+  },
+  {
+    "Name": "Cordelia",
+    "UserId": "bcbf26d8-e24a-4298-b6fd-d2320ff09fa5",
+    "UserName": "cordelia@ZulipChat.onmicrosoft.com",
+    "Title": null,
+    "Location": null,
+    "Role": null
+  },
+  {
+    "Name": "zoe",
+    "UserId": "5dbe468a-1e96-4aaa-856d-cdf825081e11",
+    "UserName": "zoe@ZulipChat.onmicrosoft.com",
+    "Title": null,
+    "Location": null,
+    "Role": null
+  },
+  {
+    "Name": "AARON",
+    "UserId": "4dbd4c6f-163d-40b7-901b-e86b2f2141ae",
+    "UserName": "aaron@ZulipChat.onmicrosoft.com",
+    "Title": "Business development specialist",
+    "Location": null,
+    "Role": null
+  },
+  {
+    "Name": "Guest guy",
+    "UserId": "16741626-4cd8-46cc-bf36-42ecc2b5fdce",
+    "UserName": "guest_example.com#EXT#@ZulipChat.onmicrosoft.com",
+    "Title": null,
+    "Location": null,
+    "Role": null
+  }
+]

zerver/tests/fixtures/microsoft_teams_fixtures/TeamsData_ZulipChat/teams/5e5f1988-3216-4ca0-83e9-18c04ecc7533/channels_5e5f1988-3216-4ca0-83e9-18c04ecc7533.json

@@ -0,0 +1,14 @@
+[
+  {
+    "Id": "19:7uc_EBehLl61DKDNpHx_8XDMdCv40Vq7_C9LFG9tLIM1@thread.tacv2",
+    "CreatedDateTime": "2025-08-12T06:53:14.257Z",
+    "DisplayName": "Issues",
+    "Description": "feedback, issues, production help, etc",
+    "IsFavoriteByDefault": null,
+    "Email": "Feedbacksupport@ZulipChat.onmicrosoft.com",
+    "TenantId": "af4acab6-6476-4c2f-bef2-ff6479dd3940",
+    "WebUrl": "https://teams.cloud.microsoft/l/channel/19%3A7uc_EBehLl61DKDNpHx_8XDMdCv40Vq7_C9LFG9tLIM1%40thread.tacv2/Feedback%20%26%20support?groupId=5e5f1988-3216-4ca0-83e9-18c04ecc7533\u0026tenantId=af4acab6-6476-4c2f-bef2-ff6479dd3940\u0026allowXTenantAccess=True\u0026ngc=True",
+    "MembershipType": "standard",
+    "IsArchived": false
+  }
+]

zerver/tests/fixtures/microsoft_teams_fixtures/TeamsData_ZulipChat/teams/5e5f1988-3216-4ca0-83e9-18c04ecc7533/groupEvents_5e5f1988-3216-4ca0-83e9-18c04ecc7533.json

@@ -0,0 +1 @@
+[]

zerver/tests/fixtures/microsoft_teams_fixtures/TeamsData_ZulipChat/teams/5e5f1988-3216-4ca0-83e9-18c04ecc7533/messages_5e5f1988-3216-4ca0-83e9-18c04ecc7533.json

@@ -0,0 +1,236 @@
+[
+  {
+    "Id": "1760014569907",
+    "Body": {
+      "ContentType": "html",
+      "Content": "\u003CsystemEventMessage/\u003E"
+    },
+    "CreatedDateTime": "2025-10-09T12:56:09.907+00:00",
+    "LastModifiedDateTime": "2025-10-09T12:56:09.907+00:00",
+    "LastEditedDateTime": null,
+    "DeletedDateTime": null,
+    "Subject": null,
+    "Summary": null,
+    "Importance": "normal",
+    "Locale": "en-us",
+    "PolicyViolation": null,
+    "ReplyToId": null,
+    "WebUrl": "https://teams.microsoft.com/l/message/19%3A7uc_EBehLl61DKDNpHx_8XDMdCv40Vq7_C9LFG9tLIM1%40thread.tacv2/1760014569907?groupId=5e5f1988-3216-4ca0-83e9-18c04ecc7533\u0026tenantId=af4acab6-6476-4c2f-bef2-ff6479dd3940\u0026createdTime=1760014569907\u0026parentMessageId=1760014569907",
+    "From": null,
+    "Attachments": [],
+    "Mentions": [],
+    "Reactions": [],
+    "MessageHistory": null,
+    "MessageType": "unknownFutureValue",
+    "ChannelIdentity": {
+      "ChannelId": "19:7uc_EBehLl61DKDNpHx_8XDMdCv40Vq7_C9LFG9tLIM1@thread.tacv2",
+      "TeamId": "5e5f1988-3216-4ca0-83e9-18c04ecc7533"
+    },
+    "ChatId": null,
+    "EventDetail": {
+      "EventType": null,
+      "Initiator": {
+        "Application": null,
+        "Device": null,
+        "User": {
+          "DisplayName": null,
+          "Id": "88cbf3c2-0810-4d32-aa19-863c12bf7be9",
+          "TenantId": "af4acab6-6476-4c2f-bef2-ff6479dd3940",
+          "Thumbnails": null
+        },
+        "Conversation": null,
+        "ConversationIdentityType": null,
+        "Encrypted": null,
+        "OnPremises": null,
+        "Guest": null,
+        "Phone": null
+      },
+      "CallEnded": null,
+      "CallRecording": null,
+      "CallStarted": null,
+      "CallTranscript": null,
+      "ChannelAdded": null,
+      "ChannelDeleted": null,
+      "ChannelDescriptionUpdated": null,
+      "ChannelRenamed": null,
+      "ChannelSetAsFavoriteByDefault": null,
+      "ChannelUnsetAsFavoriteByDefault": null,
+      "ChatRenamed": null,
+      "ConversationMemberRoleUpdated": null,
+      "MeetingPolicyUpdated": null,
+      "MembersAdded": null,
+      "MembersDeleted": null,
+      "MembersJoined": null,
+      "MembersLeft": null,
+      "MessagePinned": null,
+      "MessageUnpinned": null,
+      "TabUpdated": null,
+      "TeamArchived": null,
+      "TeamCreated": null,
+      "TeamDescriptionUpdated": null,
+      "TeamJoiningDisabled": null,
+      "TeamJoiningEnabled": null,
+      "TeamRenamed": null,
+      "TeamsAppInstalled": null,
+      "TeamsAppRemoved": null,
+      "TeamsAppUpgraded": null,
+      "TeamUnarchived": null
+    }
+  },
+  {
+    "Id": "1760015525306",
+    "Body": {
+      "ContentType": "html",
+      "Content": "\u003CsystemEventMessage/\u003E"
+    },
+    "CreatedDateTime": "2025-10-09T13:12:05.306+00:00",
+    "LastModifiedDateTime": "2025-10-09T13:12:05.306+00:00",
+    "LastEditedDateTime": null,
+    "DeletedDateTime": null,
+    "Subject": null,
+    "Summary": null,
+    "Importance": "normal",
+    "Locale": "en-us",
+    "PolicyViolation": null,
+    "ReplyToId": null,
+    "WebUrl": "https://teams.microsoft.com/l/message/19%3A7uc_EBehLl61DKDNpHx_8XDMdCv40Vq7_C9LFG9tLIM1%40thread.tacv2/1760015525306?groupId=5e5f1988-3216-4ca0-83e9-18c04ecc7533\u0026tenantId=af4acab6-6476-4c2f-bef2-ff6479dd3940\u0026createdTime=1760015525306\u0026parentMessageId=1760015525306",
+    "From": null,
+    "Attachments": [],
+    "Mentions": [],
+    "Reactions": [],
+    "MessageHistory": null,
+    "MessageType": "unknownFutureValue",
+    "ChannelIdentity": {
+      "ChannelId": "19:7uc_EBehLl61DKDNpHx_8XDMdCv40Vq7_C9LFG9tLIM1@thread.tacv2",
+      "TeamId": "5e5f1988-3216-4ca0-83e9-18c04ecc7533"
+    },
+    "ChatId": null,
+    "EventDetail": {
+      "EventType": null,
+      "Initiator": {
+        "Application": {
+          "DisplayName": null,
+          "Id": "62b732f7-fc71-40bc-b27d-35efcb0509de",
+          "TenantId": null,
+          "Thumbnails": null
+        },
+        "Device": null,
+        "User": null,
+        "Conversation": null,
+        "ConversationIdentityType": null,
+        "Encrypted": null,
+        "OnPremises": null,
+        "Guest": null,
+        "Phone": null
+      },
+      "CallEnded": null,
+      "CallRecording": null,
+      "CallStarted": null,
+      "CallTranscript": null,
+      "ChannelAdded": null,
+      "ChannelDeleted": null,
+      "ChannelDescriptionUpdated": null,
+      "ChannelRenamed": null,
+      "ChannelSetAsFavoriteByDefault": null,
+      "ChannelUnsetAsFavoriteByDefault": null,
+      "ChatRenamed": null,
+      "ConversationMemberRoleUpdated": null,
+      "MeetingPolicyUpdated": null,
+      "MembersAdded": null,
+      "MembersDeleted": null,
+      "MembersJoined": null,
+      "MembersLeft": null,
+      "MessagePinned": null,
+      "MessageUnpinned": null,
+      "TabUpdated": null,
+      "TeamArchived": null,
+      "TeamCreated": null,
+      "TeamDescriptionUpdated": null,
+      "TeamJoiningDisabled": null,
+      "TeamJoiningEnabled": null,
+      "TeamRenamed": null,
+      "TeamsAppInstalled": null,
+      "TeamsAppRemoved": null,
+      "TeamsAppUpgraded": null,
+      "TeamUnarchived": null
+    }
+  },
+  {
+    "Id": "1760954236676",
+    "Body": {
+      "ContentType": "html",
+      "Content": "\u003CsystemEventMessage/\u003E"
+    },
+    "CreatedDateTime": "2025-10-20T09:57:16.676+00:00",
+    "LastModifiedDateTime": "2025-10-20T09:57:16.676+00:00",
+    "LastEditedDateTime": null,
+    "DeletedDateTime": null,
+    "Subject": null,
+    "Summary": null,
+    "Importance": "normal",
+    "Locale": "en-us",
+    "PolicyViolation": null,
+    "ReplyToId": null,
+    "WebUrl": "https://teams.microsoft.com/l/message/19%3A7uc_EBehLl61DKDNpHx_8XDMdCv40Vq7_C9LFG9tLIM1%40thread.tacv2/1760954236676?groupId=5e5f1988-3216-4ca0-83e9-18c04ecc7533\u0026tenantId=af4acab6-6476-4c2f-bef2-ff6479dd3940\u0026createdTime=1760954236676\u0026parentMessageId=1760954236676",
+    "From": null,
+    "Attachments": [],
+    "Mentions": [],
+    "Reactions": [],
+    "MessageHistory": null,
+    "MessageType": "unknownFutureValue",
+    "ChannelIdentity": {
+      "ChannelId": "19:7uc_EBehLl61DKDNpHx_8XDMdCv40Vq7_C9LFG9tLIM1@thread.tacv2",
+      "TeamId": "5e5f1988-3216-4ca0-83e9-18c04ecc7533"
+    },
+    "ChatId": null,
+    "EventDetail": {
+      "EventType": null,
+      "Initiator": {
+        "Application": null,
+        "Device": null,
+        "User": {
+          "DisplayName": null,
+          "Id": "88cbf3c2-0810-4d32-aa19-863c12bf7be9",
+          "TenantId": "af4acab6-6476-4c2f-bef2-ff6479dd3940",
+          "Thumbnails": null
+        },
+        "Conversation": null,
+        "ConversationIdentityType": null,
+        "Encrypted": null,
+        "OnPremises": null,
+        "Guest": null,
+        "Phone": null
+      },
+      "CallEnded": null,
+      "CallRecording": null,
+      "CallStarted": null,
+      "CallTranscript": null,
+      "ChannelAdded": null,
+      "ChannelDeleted": null,
+      "ChannelDescriptionUpdated": null,
+      "ChannelRenamed": null,
+      "ChannelSetAsFavoriteByDefault": null,
+      "ChannelUnsetAsFavoriteByDefault": null,
+      "ChatRenamed": null,
+      "ConversationMemberRoleUpdated": null,
+      "MeetingPolicyUpdated": null,
+      "MembersAdded": null,
+      "MembersDeleted": null,
+      "MembersJoined": null,
+      "MembersLeft": null,
+      "MessagePinned": null,
+      "MessageUnpinned": null,
+      "TabUpdated": null,
+      "TeamArchived": null,
+      "TeamCreated": null,
+      "TeamDescriptionUpdated": null,
+      "TeamJoiningDisabled": null,
+      "TeamJoiningEnabled": null,
+      "TeamRenamed": null,
+      "TeamsAppInstalled": null,
+      "TeamsAppRemoved": null,
+      "TeamsAppUpgraded": null,
+      "TeamUnarchived": null
+    }
+  }
+]