pytest, mocking, fixtures, and test-driven development
Learn how to write Python tests using pytest-style conventions. Master assert statements, test functions, edge cases, and test organization with interactive exercises.
Learn how to use mocking and test fixtures to test Python code that depends on databases, APIs, and file systems. Master dependency injection and test isolation.
Learn Test-Driven Development (TDD) in Python. Master the Red-Green-Refactor cycle, build a FizzBuzz solution step by step, and understand when TDD shines.