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

web/tests/topic_link_util.test.cjs

@@ -0,0 +1,216 @@
+"use strict";
+
+const assert = require("node:assert/strict");
+
+const {make_stream} = require("./lib/example_stream.cjs");
+const {zrequire, mock_esm} = require("./lib/namespace.cjs");
+const {run_test} = require("./lib/test.cjs");
+
+const topic_link_util = zrequire("topic_link_util");
+const stream_data = zrequire("stream_data");
+const settings_config = zrequire("settings_config");
+mock_esm("../src/user_settings", {
+    user_settings: {
+        web_channel_default_view: settings_config.web_channel_default_view_values.channel_feed.code,
+    },
+});
+mock_esm("../src/state_data", {
+    realm: {realm_empty_topic_display_name: "general chat"},
+});
+
+const sweden_stream = make_stream({
+    name: "Sweden",
+    description: "Cold, mountains and home decor.",
+    stream_id: 1,
+    subscribed: true,
+    type: "stream",
+});
+
+const denmark_stream = make_stream({
+    name: "Denmark",
+    description: "Vikings and boats, in a serene and cold weather.",
+    stream_id: 2,
+    subscribed: true,
+    type: "stream",
+});
+
+const dollar_stream = make_stream({
+    name: "$$MONEY$$",
+    description: "Money money money",
+    stream_id: 6,
+    subscribed: true,
+    type: "stream",
+});
+
+const markdown_stream = make_stream({
+    name: "Markdown [md]",
+    description: "markdown",
+    stream_id: 7,
+    subscribed: true,
+    type: "stream",
+});
+
+stream_data.add_sub_for_tests(sweden_stream);
+stream_data.add_sub_for_tests(denmark_stream);
+stream_data.add_sub_for_tests(dollar_stream);
+stream_data.add_sub_for_tests(markdown_stream);
+
+run_test("stream_link_syntax_test", () => {
+    assert.equal(topic_link_util.get_stream_link_syntax("Sweden"), "#**Sweden**");
+    assert.equal(topic_link_util.get_stream_link_syntax("Denmark"), "#**Denmark**");
+    assert.equal(
+        topic_link_util.get_stream_link_syntax("$$MONEY$$"),
+        "[#$$MONEY$$](#narrow/channel/6)",
+    );
+    assert.equal(
+        topic_link_util.get_stream_link_syntax("Markdown [md]"),
+        "[#Markdown [md]](#narrow/channel/7-Markdown-.5Bmd.5D)",
+    );
+});
+
+run_test("stream_topic_link_syntax_test", () => {
+    assert.equal(
+        topic_link_util.get_stream_topic_link_syntax("Sweden", "topic"),
+        "#**Sweden>topic**",
+    );
+    assert.equal(
+        topic_link_util.get_stream_topic_link_syntax("Sweden", "test `test` test"),
+        "[#Sweden > test `test` test](#narrow/channel/1-Sweden/topic/test.20.60test.60.20test)",
+    );
+    assert.equal(
+        topic_link_util.get_stream_topic_link_syntax("Denmark", "test `test` test`s"),
+        "[#Denmark > test `test` test`s](#narrow/channel/2-Denmark/topic/test.20.60test.60.20test.60s)",
+    );
+    assert.equal(
+        topic_link_util.get_stream_topic_link_syntax("Sweden", "error due to *"),
+        "[#Sweden > error due to *](#narrow/channel/1-Sweden/topic/error.20due.20to.20.2A)",
+    );
+    assert.equal(
+        topic_link_util.get_stream_topic_link_syntax("Sweden", "*asterisk"),
+        "[#Sweden > *asterisk](#narrow/channel/1-Sweden/topic/.2Aasterisk)",
+    );
+    assert.equal(
+        topic_link_util.get_stream_topic_link_syntax("Sweden", "greaterthan>"),
+        "[#Sweden > greaterthan>](#narrow/channel/1-Sweden/topic/greaterthan.3E)",
+    );
+    assert.equal(
+        topic_link_util.get_stream_topic_link_syntax("$$MONEY$$", "dollar"),
+        "[#$$MONEY$$ > dollar](#narrow/channel/6/topic/dollar)",
+    );
+    assert.equal(
+        topic_link_util.get_stream_topic_link_syntax("Sweden", "swe$$dish"),
+        "[#Sweden > swe$$dish](#narrow/channel/1-Sweden/topic/swe.24.24dish)",
+    );
+    assert.equal(
+        topic_link_util.get_fallback_markdown_link("Sweden"),
+        "[#Sweden](#narrow/channel/1-Sweden)",
+    );
+
+    assert.equal(
+        topic_link_util.get_fallback_markdown_link("$$MONEY$$"),
+        "[#$$MONEY$$](#narrow/channel/6)",
+    );
+    assert.equal(
+        topic_link_util.get_fallback_markdown_link("Markdown [md]"),
+        "[#Markdown [md]](#narrow/channel/7-Markdown-.5Bmd.5D)",
+    );
+
+    assert.equal(
+        topic_link_util.get_stream_topic_link_syntax("Sweden", "&ab"),
+        "[#Sweden > &ab](#narrow/channel/1-Sweden/topic/.26ab)",
+    );
+    assert.equal(
+        topic_link_util.get_stream_topic_link_syntax("Sweden", "&ab]"),
+        "[#Sweden > &ab]](#narrow/channel/1-Sweden/topic/.26ab.5D)",
+    );
+
+    assert.equal(
+        topic_link_util.get_stream_topic_link_syntax("Sweden", "&a[b"),
+        "[#Sweden > &a[b](#narrow/channel/1-Sweden/topic/.26a.5Bb)",
+    );
+
+    assert.equal(topic_link_util.get_stream_topic_link_syntax("Sweden", ""), "#**Sweden>**");
+
+    assert.equal(
+        topic_link_util.get_stream_topic_link_syntax("$$MONEY$$", ""),
+        "[#$$MONEY$$ > translated: general chat](#narrow/channel/6/topic/)",
+    );
+
+    assert.equal(
+        topic_link_util.get_fallback_markdown_link("Sweden", "abc", 123),
+        "[#Sweden > abc @ 💬](#narrow/channel/1-Sweden/topic/abc/near/123)",
+    );
+
+    assert.equal(
+        topic_link_util.get_fallback_markdown_link("Sweden", "", 123),
+        "[#Sweden > translated: general chat @ 💬](#narrow/channel/1-Sweden/topic//near/123)",
+    );
+
+    // Only for full coverage of the module.
+    assert.equal(topic_link_util.escape_invalid_stream_topic_characters("Sweden"), "Sweden");
+    assert.equal(
+        topic_link_util.as_html_link_syntax_unsafe("test", "example.com"),
+        '<a href="example.com">test</a>',
+    );
+
+    assert.equal(
+        topic_link_util.html_unescape_invalid_stream_topic_characters("&#36;&#36;MONEY&#36;&#36;"),
+        "$$MONEY$$",
+    );
+});
+
+run_test("get_topic_link_content_with_stream_name", () => {
+    assert.deepEqual(
+        topic_link_util.get_topic_link_content_with_stream_name({
+            stream_name: sweden_stream.name,
+            topic_name: "abc",
+            message_id: 123,
+        }),
+        {
+            label_text_markdown: "#Sweden > abc @ 💬",
+            label_text_plain: "#Sweden > abc @ 💬",
+            url: "#narrow/channel/1-Sweden/topic/abc/near/123",
+        },
+    );
+
+    assert.deepEqual(
+        topic_link_util.get_topic_link_content_with_stream_name({
+            stream_name: sweden_stream.name,
+            topic_name: "a![b](c)",
+            message_id: 123,
+        }),
+        {
+            label_text_markdown: "#Sweden > a!&#91;b&#93;(c) @ 💬",
+            label_text_plain: "#Sweden > a![b](c) @ 💬",
+            url: "#narrow/channel/1-Sweden/topic/a.21.5Bb.5D.28c.29/near/123",
+        },
+    );
+});
+
+run_test("get_topic_link_content_with_stream_id", () => {
+    assert.deepEqual(
+        topic_link_util.get_topic_link_content_with_stream_id({
+            stream_id: sweden_stream.stream_id,
+            topic_name: "abc",
+            message_id: 123,
+        }),
+        {
+            label_text_markdown: "#Sweden > abc @ 💬",
+            label_text_plain: "#Sweden > abc @ 💬",
+            url: "#narrow/channel/1-Sweden/topic/abc/near/123",
+        },
+    );
+
+    assert.deepEqual(
+        topic_link_util.get_topic_link_content_with_stream_id({
+            stream_id: sweden_stream.stream_id,
+            topic_name: "<abc>",
+            message_id: 123,
+        }),
+        {
+            label_text_markdown: "#Sweden > <abc&gt; @ 💬",
+            label_text_plain: "#Sweden > <abc> @ 💬",
+            url: "#narrow/channel/1-Sweden/topic/.3Cabc.3E/near/123",
+        },
+    );
+});