Use vitest for some EW unit tests (#33816)

* Use vitest for some EW unit tests * Ensure library builds are done before unit tests * Stabilise jest tests * Move more tests over * Make sonar happier * Update types/node for happy-dom compat again * Decrease max-workers to stabilise jest tests * Split jest over 3 runners to alleviate memory woes * Switch jest to runInBand * Attempt to deflake jest tests * tweak coverage * tweak coverage
2026-06-15 13:24:33 +00:00
parent 7949980a7e
commit 2f4e6a4ec4
37 changed files with 475 additions and 326 deletions
@@ -0,0 +1,44 @@
+/*
+Copyright 2024 New Vector Ltd.
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE files in the repository root for full details.
+*/
+
+import { vi, describe, it, expect, beforeEach, type Mock } from "vitest";
+import { type ClientEvent, type ClientEventHandlerMap, SyncState } from "matrix-js-sdk/src/matrix";
+
+import { createReconnectedListener } from "./connection";
+
+describe("createReconnectedListener", () => {
+    let reconnectedListener: ClientEventHandlerMap[ClientEvent.Sync];
+    let onReconnect: Mock;
+
+    beforeEach(() => {
+        onReconnect = vi.fn();
+        reconnectedListener = createReconnectedListener(onReconnect);
+    });
+
+    [
+        [SyncState.Prepared, SyncState.Syncing],
+        [SyncState.Syncing, SyncState.Reconnecting],
+        [SyncState.Reconnecting, SyncState.Syncing],
+    ].forEach(([from, to]) => {
+        it(`should invoke the callback on a transition from ${from} to ${to}`, () => {
+            reconnectedListener(to, from);
+            expect(onReconnect).toHaveBeenCalled();
+        });
+    });
+
+    [
+        [SyncState.Syncing, SyncState.Syncing],
+        [SyncState.Catchup, SyncState.Error],
+        [SyncState.Reconnecting, SyncState.Error],
+    ].forEach(([from, to]) => {
+        it(`should not invoke the callback on a transition from ${from} to ${to}`, () => {
+            reconnectedListener(to, from);
+            expect(onReconnect).not.toHaveBeenCalled();
+        });
+    });
+});