2. Usage and Invocations

pytest

python -m pytest [...]

该命令等价于直接pytest []， 不过通过python调用会将当前路径加到sys.path中。

退出codes

Exit code 0:    所有测试完美通过
Exit code 1:    一些测试失败
Exit code 2:    用户中断test
Exit code 3:    Internal error happened while executing tests
Exit code 4:    pytest command line usage error
Exit code 5:    No tests were collected

常见命令

pytest --version 
pytest --fixtures  # show available builtin function arguments
pytest -h  

Stopping after the first (or N) failures

pytest -x  # 在出现第一个测试失败之后立即停止
pytest --maxfail=2    # stop after two failures

Specifying tests / selecting tests

pytest test_mod.py  # run tests in a module
pytest testing/   # run tests in a directory
pytest -k "MyClass and not method"  # Run tests by keyword expressions
pytest test_mod.py::test_func  # To run a specific test within a module
pytest test_mod.py::TestClass::test_method
pytest -m slow  # run all tests which are decorated with the @pytest.mark.slow decorator.
pytest --pyargs pkg.testing  # Run tests from packages

Modifying Python traceback printing