fix yarn test

Author: anupriya13

packages/@react-native-windows/cli/src/e2etest/architecturePrompt.test.ts

@@ -16,12 +16,16 @@ const mockPrompts = prompts as jest.MockedFunction<typeof prompts>;
 
 describe('architecturePrompt', () => {
   beforeEach(() => {
+    jest.useFakeTimers(); // ensure timers are controlled
     jest.clearAllMocks();
     // Mock console methods to prevent output during tests
     jest.spyOn(console, 'log').mockImplementation(() => {});
   });
 
   afterEach(() => {
+    // flush any pending timers from the timeout in promptForArchitectureChoice
+    jest.runOnlyPendingTimers();
+    jest.useRealTimers();
     jest.restoreAllMocks();
   });
 

packages/@react-native-windows/cli/src/utils/architecturePrompt.ts

@@ -76,13 +76,13 @@ export async function promptForArchitectureChoice(
               '\n⏳ No input received in 3 seconds. Proceeding with Old Architecture by default.',
             ),
           );
-          resolve({ choice: 'y' });
+          resolve({choice: 'y'});
         }, 3000);
       });
 
       const response = await Promise.race([userInputPromise, timeoutPromise]);
 
-      clearTimeout(timeoutId); // prevent late logging after resolution
+      if (timeoutId) clearTimeout(timeoutId); // prevent late logging after resolution
 
       if (!response.choice) {
         // User cancelled or no input