Python · Track

Testing with pytest

Learn to write professional Python tests using pytest. From your first test to CI pipelines and Django integration — build the testing skills every Python developer needs.

4 levels 20 topics 100 exercises

Learning order

Sections and topics

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Beginner

6 topics · 30 exercises

Your First Test Write and run your first pytest test. Learn how pytest discovers tests and reads output. 5 tasks Assertions in Depth Master pytest's assertion rewriting for clear, informative failure messages. 5 tasks Organizing Tests Structure test files and directories for discoverability and maintainability. 5 tasks Fixtures Use @pytest.fixture for reusable setup and teardown without boilerplate. 5 tasks Parametrized Tests Run one test function against multiple inputs with @pytest.mark.parametrize. 5 tasks Testing Exceptions Assert that code raises the right exceptions with pytest.raises. 5 tasks

Intermediate

5 topics · 25 exercises

Mocking with unittest.mock Isolate code under test by replacing dependencies with controllable fakes. 5 tasks conftest.py and Shared Fixtures Share fixtures across test files using conftest.py without any imports. 5 tasks Marks and Test Selection Tag tests with built-in and custom marks to control which tests run. 5 tasks Testing HTTP APIs Write automated tests for HTTP APIs using requests and pytest fixtures. 5 tasks Test Coverage Measure which lines of code are exercised by your tests with pytest-cov. 5 tasks

Advanced

4 topics · 20 exercises

Async Testing with pytest-asyncio Test async Python code and async HTTP clients with pytest-asyncio. 5 tasks Fixture Factories and Test Data Build flexible test data using factory fixtures and the Faker library. 5 tasks Integration Testing Test multiple components working together against real services. 5 tasks Property-Based Testing with Hypothesis Generate thousands of test inputs automatically to find edge cases you would miss. 5 tasks

Expert

5 topics · 25 exercises

Testing Django Apps with pytest-django Test Django views, models, and forms using pytest-django's built-in fixtures. 5 tasks Testing FastAPI Apps 5 tasks Test-Driven Development Drive design with tests: write failing tests first, then implement to make them pass. 5 tasks CI/CD Integration Run pytest automatically in CI pipelines with GitHub Actions and tox. 5 tasks Large Test Suite Architecture Organize large test suites for speed, isolation, and maintainability. 5 tasks