Migrate more jest tests to vitest (#33922)

* Migrate more jest tests to vitest

* Fix jest config

* Fix jest config

* Make remaining jest tests type-happy

* Iterate

* Fix Notifier import cycle

* Fix tests

* Delint

* Iterate

* Handle SDKContextClass `client` initialisation internally

Rather than via MatrixChat - this is predominantly for Lifecycle tests as they don't use a MatrixChat and it doesn't make much sense for this component to own this state.

* Fix tests

* Iterate

* Simplify diff

* Improve coverage

* Improve coverage

* Iterate

apps/web/src/test/setupGlobals.ts

@@ -8,6 +8,7 @@ Please see LICENSE files in the repository root for full details.
 import { vi } from "vitest";
 
 import { mocks } from "../../test/setup/mocks.ts";
+import SdkConfig, { DEFAULTS } from "../SdkConfig";
 
 // set up AudioContext API mock
 vi.stubGlobal("AudioContext", function () {
@@ -28,3 +29,6 @@ if (globalThis.window === undefined) {
         setTimeout: globalThis.setTimeout,
     });
 }
+
+// uninitialised SdkConfig causes lots of warnings in console, init with defaults
+SdkConfig.put(DEFAULTS);

apps/web/src/test/setupTests.ts

@@ -5,7 +5,7 @@ SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
 Please see LICENSE files in the repository root for full details.
 */
 
-import { beforeEach, afterEach } from "vitest";
+import { vi, beforeEach, afterEach } from "vitest";
 import fetchMock, { manageFetchMockGlobally } from "@fetch-mock/vitest";
 
 import SdkConfig, { DEFAULTS } from "../SdkConfig";
@@ -15,6 +15,8 @@ import { setupLanguageMock } from "./setupLanguage.ts";
 manageFetchMockGlobally();
 
 beforeEach(() => {
+    vi.stubEnv("TZ", "UTC");
+
     // set up fetch API mock
     fetchMock.hardReset();
     fetchMock.catch(404);