Py.Test

August 23, 2023 · View on GitHub

Python test suite. The pytest framework makes it easy to write small tests, yet scales to support complex functional testing for applications and libraries.

Installation

pip install pytest               # core
pip install pytest-cache         # bytest cache plugin
pip install pytest-cov           # generate code coverage report
pip install pytest-pep8          # check python code style

Basics

Write Tests

Put your tests in a directory named tests. Each name of files containing tests should starts with test_. Each test function should start with test_.

Fixtures

Files Hierarchy

my_project/
  my_module/
  tests/
    conftest.py                   # fixtures
    test_schemas.py
    test_cli.py
    test_model.py
  setup.py                        # python makefile
  pytest.ini                      # config file

Run

py.test                           # run the test
py.test -s                        # run with stdout enable
py.test tests                     # run tests on the tests directory only
py.test tests/test_app.py         # run one file tests

Configuration Files

pytest.ini

[pytest]
addopts = --pep8 --ignore=docs --cov=simple_app --cov-report=term-missing

References

pytest