Unit Testing In FastAPI (Using It's In-Built Test Client) With Pytest

1. 1Install Pytest using pip by running `pip install pytest`
2. 2Import FastAPI's test client in your test file using `from fastapi.testclient import TestClient`
3. 3Create a test client instance by calling `client = TestClient(app)` where `app` is your FastAPI application instance
4. 4Write test functions using Pytest's decorator `@pytest.mark.asyncio` to test asynchronous endpoints
5. 5Use the test client to send requests to your application and assert the expected responses

Backend developers and testers can benefit from this tutorial to ensure their FastAPI applications are robust and reliable

💡 FastAPI's built-in test client makes it easy to write unit tests for your application

🚀 Write robust unit tests for your FastAPI apps with Pytest and the built-in test client 💻