fix: throws a warning for detector (aws-amplify#12307)

* fix: throws a warning for detector

* fix: address comments

* chore: fix unit test header

Author: akshbhu

packages/amplify-provider-awscloudformation/src/__tests__/print-cdk-migration-warning.test.ts

@@ -52,6 +52,42 @@ const mockContext = {
 describe('print migration warning tests', () => {
   beforeEach(() => jest.clearAllMocks());
 
+  it('no migration message when detector failed for some reason', async () => {
+    const resourcesToBeCreated = [
+      {
+        category: 'function',
+        resourceName: 'someResource',
+        service: 'Lambda',
+      },
+    ];
+    const resourcesToBeDeleted = [
+      {
+        category: 'auth',
+        resourceName: 'someResource1',
+        service: 'Cognito',
+      },
+    ];
+    const resourcesToBeUpdated = [
+      {
+        category: 'storage',
+        resourceName: 'someResource2',
+        service: 'S3',
+      },
+    ];
+
+    const allResources = [...resourcesToBeCreated, ...resourcesToBeDeleted, ...resourcesToBeUpdated];
+    mockContext.amplify.getResourceStatus.mockResolvedValue({ allResources });
+    // amplify-node-detector plug
+    detectAffectedDirectDependenciesMock.mockImplementation(() => {
+      throw new Error();
+    });
+    // override plug
+    fsMock.existsSync.mockReturnValue(false);
+    printerMock.warn.mockReturnValue(undefined);
+    await printCdkMigrationWarning(mockContext as unknown as $TSContext);
+    expect(printerMock.warn).not.toBeCalled();
+  });
+
   it('no migration message when there are no override and custom resources', async () => {
     const resourcesToBeCreated = [
       {

packages/amplify-provider-awscloudformation/src/print-cdk-migration-warning.ts

@@ -22,19 +22,23 @@ export type AmplifyWarning = {
  * print cdk migration warning if required
  */
 export const printCdkMigrationWarning = async (context: $TSContext): Promise<void> => {
-  const resourcesToBuild: IAmplifyResource[] = [];
-  const { allResources } = await context.amplify.getResourceStatus();
-  allResources.forEach((resource) => {
-    resourcesToBuild.push({
-      service: resource.service as string,
-      category: resource.category as string,
-      resourceName: resource.resourceName as string,
+  try {
+    const resourcesToBuild: IAmplifyResource[] = [];
+    const { allResources } = await context.amplify.getResourceStatus();
+    allResources.forEach((resource) => {
+      resourcesToBuild.push({
+        service: resource.service as string,
+        category: resource.category as string,
+        resourceName: resource.resourceName as string,
+      });
     });
-  });
-  // check for override.ts file enabled
-  const migrationString = getMigrationMessage(resourcesToBuild);
-  if (!_.isEmpty(migrationString)) {
-    printer.warn(migrationString);
+    // check for override.ts file enabled
+    const migrationString = getMigrationMessage(resourcesToBuild);
+    if (!_.isEmpty(migrationString)) {
+      printer.warn(migrationString);
+    }
+  } catch (error) {
+    // suppress error if cdk detection fails for some reason
   }
 };