🧠 What is Integration Testing?
Integration Testing focuses on testing how different parts of a system (like services, APIs, databases, or external systems) work together. It ensures that the components function as expected when they interact.

✅ Key Points of Integration Testing:
✅ It tests the interaction between multiple components (unlike Unit Testing, which tests components in isolation).

✅ It often involves real dependencies (like a database or external API).

✅ The goal is to find issues related to data flow, communication, and integration.

✅ Example of Integration Testing:
For an ASP.NET Core API:

HTTP calls are made to the real API.

The database, services, and controllers are integrated and tested together.

🧰 Tools for Integration Testing:
✅ xUnit / NUnit (for writing tests)

✅ TestServer / WebApplicationFactory (for ASP.NET Core integration testing)

✅ Postman (for testing APIs outside of code)

📝 Tip to Remember:
“Integration Tests = Verify how parts of the system work together (with real dependencies)”