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

web/tests/keydown_util.test.cjs

@@ -0,0 +1,79 @@
+"use strict";
+
+const assert = require("node:assert/strict");
+
+const {zrequire} = require("./lib/namespace.cjs");
+const {run_test} = require("./lib/test.cjs");
+const {$} = require("./lib/zjquery.cjs");
+
+const keydown_util = zrequire("keydown_util");
+
+run_test("test_early_returns", () => {
+    const $stub = $.create("stub");
+    const opts = {
+        $elem: $stub,
+        handlers: {
+            /* istanbul ignore next */
+            ArrowLeft() {
+                throw new Error("do not dispatch this with alt key");
+            },
+        },
+    };
+
+    keydown_util.handle(opts);
+
+    const e1 = {
+        type: "keydown",
+        key: "a", // not in keys
+    };
+
+    $stub.trigger(e1);
+
+    const e2 = {
+        type: "keydown",
+        key: "Enter", // no handler
+    };
+
+    $stub.trigger(e2);
+
+    const e3 = {
+        type: "keydown",
+        key: "ArrowLeft",
+        altKey: true, // let browser handle
+    };
+
+    $stub.trigger(e3);
+});
+
+run_test("test_ime_enter_events", () => {
+    // these events shouldn't be recognized as a return keypress.
+    const event_1 = {
+        key: "Enter",
+        originalEvent: {
+            isComposing: true,
+        },
+    };
+
+    const event_2 = {
+        key: "Random",
+        originalEvent: {
+            isComposing: false,
+        },
+    };
+    assert.ok(!keydown_util.is_enter_event(event_1));
+    assert.ok(!keydown_util.is_enter_event(event_2));
+
+    // these are valid return keypress events.
+    const event_3 = {
+        key: "Enter",
+        originalEvent: {
+            isComposing: false,
+        },
+    };
+    const event_4 = {
+        key: "Enter",
+        // Edgacase: if there is no originalEvent, JQuery didn't provide the object.
+    };
+    assert.ok(keydown_util.is_enter_event(event_3));
+    assert.ok(keydown_util.is_enter_event(event_4));
+});