private Event<Stack> stackEvent;
@Before
public void setUp() {
underTest = new ClusterRequestHandler();
MockitoAnnotations.initMocks(this);
Credential credential = AwsConnectorTestUtil.createAwsCredential();
Template awsTemplate = AwsConnectorTestUtil.createAwsTemplate();
stackEvent = new Event<>(ServiceTestUtils.createStack(awsTemplate, credential));
stackEvent.setKey(AMBARI_STARTED);