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

web/tests/message_fetch.test.cjs

@@ -0,0 +1,40 @@
+"use strict";
+
+const assert = require("node:assert/strict");
+
+const {zrequire} = require("./lib/namespace.cjs");
+const {run_test} = require("./lib/test.cjs");
+const blueslip = require("./lib/zblueslip.cjs");
+
+const {Filter} = zrequire("filter");
+const {MessageListData} = zrequire("message_list_data");
+const message_fetch = zrequire("message_fetch");
+
+run_test("get_parameters_for_message_fetch_api date anchor", () => {
+    const msg_list_data = new MessageListData({
+        excludes_muted_topics: false,
+        filter: new Filter([]),
+    });
+
+    const anchor_date = new Date("2024-01-02T00:00:00.000Z").toISOString();
+    const params = message_fetch.get_parameters_for_message_fetch_api({
+        anchor: "date",
+        anchor_date,
+        num_before: 0,
+        num_after: 0,
+        cont() {},
+        msg_list_data,
+    });
+    assert.equal(params.anchor, "date");
+    assert.equal(params.anchor_date, anchor_date);
+
+    blueslip.expect("error", "Missing anchor_date for date anchor fetch");
+    const missing_date = message_fetch.get_parameters_for_message_fetch_api({
+        anchor: "date",
+        num_before: 0,
+        num_after: 0,
+        cont() {},
+        msg_list_data,
+    });
+    assert.equal(missing_date.anchor_date, undefined);
+});