Integration Testing

Tests how multiple components work together.

Instructions

When creating integration tests:

1. •

   Identify integration points

   • •API endpoints
   • •Database interactions
   • •Service communication
   • •External dependencies
2. •

   Set up test environment

   • •Use test databases
   • •Mock external services
   • •Clean state between tests
3. •

   Write test scenarios

   rust

   #[tokio::test]
   async fn test_user_registration_flow() {
       // Setup
       let app = spawn_app().await;
       
       // Act
       let response = app.post_register(json!({
           "email": "test@example.com",
           "password": "password123"
       })).await;
       
       // Assert
       assert!(response.status().is_success());
   }
   

Best Practices

• •Test realistic user scenarios
• •Use actual databases when possible
• •Clean up resources after tests
• •Run in isolated environments