Welcome to Flake8-AAA’s documentation!

flake8-aaa

Extends Flake8 to check Python tests follow the Arrange Act Assert pattern.

Installation

Install with pip:

$ pip install flake8-aaa

Check that flake8-aaa was installed correctly by asking flake8 for its version signature:

$ flake8 --version
3.5.0 (aaa: 0.4.0, mccabe: 0.6.1, pycodestyle: 2.3.1, pyflakes: 1.6.0) CPython 3.5.2 on Linux

The aaa: 0.4.0 part of that output tells you flake8 found this plugin.

There is more information on invoking flake8 on the Invoking Flake8 documentation page.

Resources

• Documentation on ReadTheDocs
• Package on PyPI
• Source code on GitHub
• Licensed on MIT
• Changelog

Tested on Pythons 2.7 and 3.6.

Contents:

• Test discovery
• Rules and error codes
  • AAA01: no Act block found in test
  • AAA02: multiple Act blocks found in test
  • AAA03: expected 1 blank line before Act block, found none
  • AAA04: expected 1 blank line before Assert block, found none