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/application_test.go

@@ -96,8 +96,12 @@ func TestMain(m *testing.M) {
 	// Important note: only works once after starting the setup, because first time use creates
 	// a user and updates it because of the login. After then only logins are done, no user creations.
 	// This means that this will block after trying once, because the two attempts to read from eventChannel.
-	// _ = <-application.eventChannel
-	// _ = <-application.eventChannel
+	if os.Getenv("RABBITMQ") != "" {
+		_ = <-application.eventChannel
+	} else {
+		_ = <-application.eventChannel
+		_ = <-application.eventChannel
+	}
 
 	m.Run()
 }