Prepare for repo merge

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

test/unit-tests/utils/connection-test.ts

@@ -0,0 +1,43 @@
+/*
+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
+Please see LICENSE files in the repository root for full details.
+*/
+
+import { ClientEvent, ClientEventHandlerMap, SyncState } from "matrix-js-sdk/src/matrix";
+
+import { createReconnectedListener } from "../../src/utils/connection";
+
+describe("createReconnectedListener", () => {
+    let reconnectedListener: ClientEventHandlerMap[ClientEvent.Sync];
+    let onReconnect: jest.Mock;
+
+    beforeEach(() => {
+        onReconnect = jest.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();
+        });
+    });
+});