Replace setImmediate with setTimeout (#12614)

test/stores/LifecycleStore-test.ts

@@ -16,6 +16,7 @@ limitations under the License.
 
 import { mocked } from "jest-mock";
 import { SyncState } from "matrix-js-sdk/src/matrix";
+import { sleep } from "matrix-js-sdk/src/utils";
 
 import { MatrixClientPeg } from "../../src/MatrixClientPeg";
 import ToastStore from "../../src/stores/ToastStore";
@@ -40,7 +41,7 @@ describe("LifecycleStore", () => {
             prevState: SyncState.Prepared,
         });
 
-        await new Promise(setImmediate);
+        await sleep(0);
 
         expect(addOrReplaceToast).not.toHaveBeenCalledWith(
             expect.objectContaining({
@@ -58,7 +59,7 @@ describe("LifecycleStore", () => {
             prevState: SyncState.Prepared,
         });
 
-        await new Promise(setImmediate);
+        await sleep(0);
 
         expect(addOrReplaceToast).toHaveBeenCalledWith(
             expect.objectContaining({
@@ -77,7 +78,7 @@ describe("LifecycleStore", () => {
             prevState: SyncState.Prepared,
         });
 
-        await new Promise(setImmediate);
+        await sleep(0);
 
         addOrReplaceToast.mock.calls[0][0].props.onAccept();
 

test/stores/room-list/RoomListStore-test.ts

@@ -323,7 +323,6 @@ describe("RoomListStore", () => {
                 const algorithmSpy = jest.spyOn(store.algorithm, "handleRoomUpdate").mockReturnValue(undefined);
                 // @ts-ignore cheat and call protected fn
                 store.onAction({ action: "MatrixActions.accountData", event, previousEvent });
-                // flush setImmediate
                 await flushPromises();
 
                 expect(algorithmSpy).toHaveBeenCalledWith(normalRoom, RoomUpdateCause.PossibleMuteChange);
@@ -346,7 +345,6 @@ describe("RoomListStore", () => {
 
                 // @ts-ignore cheat and call protected fn
                 store.onAction({ action: "MatrixActions.accountData", event, previousEvent });
-                // flush setImmediate
                 await flushPromises();
 
                 // only one call to update made for normalRoom