Fix flaky jest tests (#29927)

* Debug flaky jest test

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

* Iterate

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

* Discard changes to jest.config.ts

---------

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

src/Lifecycle.ts

@@ -1115,7 +1115,9 @@ export async function onLoggedOut(): Promise<void> {
  * @param {object} opts Options for how to clear storage.
  * @returns {Promise} promise which resolves once the stores have been cleared
  */
-async function clearStorage(opts?: { deleteEverything?: boolean }): Promise<void> {
+export async function clearStorage(opts?: { deleteEverything?: boolean }): Promise<void> {
+    logger.info(`Clearing storage, deleteEverything=${opts?.deleteEverything}`);
+
     if (window.localStorage) {
         // get the currently defined device language, if set, so we can restore it later
         const language = SettingsStore.getValueAt(SettingLevel.DEVICE, "language", null, true, true);

src/utils/StorageManager.ts

@@ -92,8 +92,7 @@ export async function checkConsistency(): Promise<{
     if (dataInLocalStorage && cryptoInited && !dataInCryptoStore) {
         healthy = false;
         error(
-            "Data exists in local storage and crypto is marked as initialised " +
-                " but no data found in crypto store. " +
+            "Data exists in local storage and crypto is marked as initialised but no data found in crypto store. " +
                 "IndexedDB storage has likely been evicted by the browser!",
         );
     }

test/unit-tests/components/structures/MatrixChat-test.tsx

@@ -68,6 +68,7 @@ import AutoDiscoveryUtils from "../../../../src/utils/AutoDiscoveryUtils";
 import { type ValidatedServerConfig } from "../../../../src/utils/ValidatedServerConfig";
 import Modal from "../../../../src/Modal.tsx";
 import { SetupEncryptionStore } from "../../../../src/stores/SetupEncryptionStore.ts";
+import { clearStorage } from "../../../../src/Lifecycle";
 
 jest.mock("matrix-js-sdk/src/oidc/authorize", () => ({
     completeAuthorizationCodeGrant: jest.fn(),
@@ -217,6 +218,9 @@ describe("<MatrixChat />", () => {
     };
 
     beforeEach(async () => {
+        await clearStorage();
+        Lifecycle.setSessionLockNotStolen();
+
         localStorage.clear();
         jest.restoreAllMocks();
         defaultProps = {
@@ -344,10 +348,6 @@ describe("<MatrixChat />", () => {
                     },
                 });
 
-            jest.spyOn(logger, "error").mockClear();
-        });
-
-        beforeEach(() => {
             loginClient = getMockClientWithEventEmitter(getMockClientMethods());
             // this is used to create a temporary client during login
             jest.spyOn(MatrixJs, "createClient").mockReturnValue(loginClient);