Test Name function validator (Flake8 plugin)

An extension for Flake8 to make sure that test function name follows a given convention

Plugin for Flake8

When both Flake8 and flake8-test-name are installed, the plugin will show up when displaying the version of flake8:

$ flake8 --version
3.6.0 (flake8-test-name: 0.1.2, […]

Operation

The hook assumes that your:

• test files are matching test_.*.py
• test functions are starting with test_

Any function matching these 2 conditions will be validated against your custom validator

Parameters

This module can be configured in 2 ways. First option is a regex using --test-func-name-validator-regex:

$ flake8 myproject/tests/sample.py --test-func-name-validator-regex="test_funky_convention_.*" --select=TN101

>> myproject/tests/sample.py:14:1: TN101 test function name does not match the convention (test_invalid_method_sample)

Second option is with a python module containing a method named test_function_name_validator. Assuming you have a funky_validator.py file with the following content:

def test_function_name_validator(func_name: str):
    return func_name.startswith("test_funkyconvention")

You can then configure it using --test-func-name-validator-module:

$ flake8 myproject/tests/sample.py --test-func-name-validator-module=./funky_validator.py --select=TN101

>> myproject/tests/sample.py:14:1: TN101 test function name does not match the convention (test_invalid_method_sample)

Error codes

This plugin is using the following error codes:

Code | Error
TN101	TN101 test function name does not match the convention

Changes

0.1.6 - 2023-10-03

• fix in options parser for flake8 > 6.0

0.1.5 - 2021-03-21

• minor refactoring and doc improvement

0.1.1 - 2021-03-19

• Initial release