Florian Bruhin
pytest: Simple, rapid and fun testing with Python
#1about 2 minutes
Understanding the core features and benefits of pytest
Pytest simplifies testing with automatic test discovery, useful failure reports, parameterization, and a powerful fixture system.
#2about 5 minutes
Writing simple tests with plain assert statements
Pytest eliminates boilerplate by using standard Python `assert` statements and provides detailed failure reports through assertion rewriting.
#3about 3 minutes
Using markers to conditionally skip and group tests
Use decorators like `@pytest.mark.skipif` to conditionally run tests and custom markers to tag and select specific test groups.
#4about 3 minutes
Creating data-driven tests with parameterization
The `@pytest.mark.parametrize` decorator allows running a single test function with multiple sets of input data, reducing code duplication.
#5about 7 minutes
Modularizing setup and teardown with fixtures
Fixtures use dependency injection to provide reusable setup and teardown logic for tests, allowing for modular and composable test resources.
#6about 3 minutes
Using built-in fixtures for common testing tasks
Pytest provides built-in fixtures like `tmppath` for creating temporary directories and `monkeypatch` for modifying state on a per-test basis.
#7about 7 minutes
Extending pytest functionality with popular plugins
Explore the pytest plugin ecosystem, including `pytest-cov` for coverage, `pytest-bdd` for behavior-driven development, and `hypothesis` for property-based testing.
#8about 14 minutes
Migrating to pytest and preparing for future releases
Learn how to migrate existing test suites to pytest and get a preview of upcoming features in the pytest 7.0 release, such as type annotations.
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