Resolve "Implement integration tests for applications"

Description

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

Related to #347

integration-tests/application_tests/appUtility_test.go

@@ -27,6 +27,8 @@ func NewApplication(ctx context.Context, grpcClientConn *grpc.ClientConn, contro
 		os.Exit(1)
 	}
 
+	queueCredentials = "amqp://guest:guest@rabbitmq:5672"
+
 	logrus.Infof("QUEUE CREDENTIALS: %v", queueCredentials)
 
 	eventService, err := event.NewEventService(