Comprehensive API Testing: Strategies for Ensuring Quality and Reliability
Walks through six types of API tests with working Python examples for each: unit tests using pytest fixtures against Flask routes, integration tests with an in-memory SQLite database to verify data-layer behavior, functional tests using the requests library to hit live endpoints, security tests that attempt SQL injection and confirm the API rejects it, load tests with Locust to simulate concurrent users, and regression tests automated in a GitHub Actions CI workflow triggered on every push to main.