What are some key features of pytest?

What are some key features of pytest?

Pytest is a powerful testing framework for Python. Some key features include:

1. Simple syntax for writing tests.
2. Support for fixtures to manage setup and teardown.
3. Detailed and informative error messages.
4. Ability to run tests in parallel.
5. Extensive plugin architecture.

Can you explain what fixtures are?

Fixtures in pytest are functions that run before (and sometimes after) your tests. They help set up the environment or provide data needed for tests, ensuring that tests are isolated and repeatable.

How does pytest handle test discovery?

Pytest automatically discovers tests by looking for files that start with 'test_' or end with 'test.py'. It then finds functions within those files that start with 'test'.

What are some popular plugins for pytest?

Some popular pytest plugins include:

1. pytest-cov for coverage reporting.
2. pytest-xdist for parallel test execution.
3. pytest-mock for easier mocking.