fix bug: AWSInstanceProfileCredentials.profile() returns a promise not a string

Author: eterna2

frontend/server/aws-helper.ts

@@ -82,7 +82,7 @@ class AWSInstanceProfileCredentials {
 
   async _fetchCredentials(): Promise<IAWSMetadataCredentials | undefined> {
     try {
-      const resp = await fetch(`${metadataUrl}/iam/security-credentials/${this.profile()}`);
+      const resp = await fetch(`${metadataUrl}/iam/security-credentials/${await this.profile()}`);
       return resp.json();
     } catch (error) {
       console.error(`Unable to fetch credentials from AWS metadata store: ${error}`);

frontend/server/minio-helper.test.ts

@@ -20,8 +20,8 @@ jest.mock('./aws-helper');
 const MockedMinioClient: jest.Mock = MinioClient as any;
 
 describe('createMinioClient', () => {
-  afterEach(() => {
-    MockedMinioClient.mockClear();
+  beforeEach(() => {
+    (MinioClient as any).mockClear();
     (awsInstanceProfileCredentials.getCredentials as jest.Mock).mockClear();
     (awsInstanceProfileCredentials.ok as jest.Mock).mockClear();
   });