test fix

sample/04-file-upload/test/app.e2e-spec.ts

@@ -21,11 +21,42 @@ describe('AppController (e2e)', () => {
       .expect(200)
       .expect('Hello World from file upload.');
   });
+});
+
+describe('Test that require mock environment variables', () => {
+  let app: INestApplication;
+  const OLD_ENV = process.env;
+
+  beforeEach(async () => {
+    jest.resetModules();
+    process.env = { ...OLD_ENV };
+    const moduleFixture: TestingModule = await Test.createTestingModule({
+      imports: [AppModule],
+    }).compile();
+
+    app = moduleFixture.createNestApplication();
+  });
+
+  afterAll(() => {
+    process.env = OLD_ENV;
+  });
+
+  it('Throws error if process.env.STORAGE_ENDPOINT is not set up', async () => {
+    process.env.STORAGE_ENDPOINT = 'this/path/does/not/exist';
+    try {
+      await app.init();
+    } catch (error) {
+      expect(error.name).toBe('InternalServerErrorException');
+      expect(error.message).toBe(
+        'Storage location does not exist. Make sure this location is present and accessible by the application.',
+      );
+    }
+  });
 
   it('should allow empty destination parameter and store in root of STORAGE_ENDPOINT', async () => {
     // const mockFilename = 'testfile1.txt';
     // const mockDestination = '';
-
+    await app.init();
     const response = await request(app.getHttpServer())
       .post(`/files/upload-file`)
       .query({ filename: 'test.txt' })
@@ -55,34 +86,3 @@ describe('AppController (e2e)', () => {
     }
   });
 });
-
-describe('Test that require mock environment variables', () => {
-  let app: INestApplication;
-  const OLD_ENV = process.env;
-
-  beforeEach(async () => {
-    jest.resetModules();
-    process.env = { ...OLD_ENV };
-    const moduleFixture: TestingModule = await Test.createTestingModule({
-      imports: [AppModule],
-    }).compile();
-
-    app = moduleFixture.createNestApplication();
-  });
-
-  afterAll(() => {
-    process.env = OLD_ENV;
-  });
-
-  it('Throws error if process.env.STORAGE_ENDPOINT is not set up', async () => {
-    process.env.STORAGE_ENDPOINT = 'this/path/does/not/exist';
-    try {
-      await app.init();
-    } catch (error) {
-      expect(error.name).toBe('InternalServerErrorException');
-      expect(error.message).toBe(
-        'Storage location does not exist. Make sure this location is present and accessible by the application.',
-      );
-    }
-  });
-});