A pytest plugin to enable format checking with black.
There is a minimum requirement of black 19.3b0 or later.
$ pip install pytest-black
To run pytest with formatting checks provided by black:
$ pytest --black
The plugin will output a diff of suggested formatting changes (if any exist). Changes will not be applied automatically.
You can override default black configuration options by placing a pyproject.toml file in your project directory. See example configuration here.
For poetry to work correctly, include this in your pyproject.toml configuration file:
[tool.poetry.dev-dependencies]
...
black = { version = "*", allow-prereleases = true }
...
This is necessary because at the time of writing all the black releases in PyPI have been tagged as pre-releases (beta code), which breaks poetry's dependency resolution.
To run the tests against a selection of Python interpreters:
$ tox
To run against a specific interpreter (e.g. Python 3.6):
$ tox -e py36
The tox.ini file in the root of this repository is used to configure the test environment.
Distributed under the terms of the MIT license, pytest-black is free and open source software
If you encounter any problems, please file an issue along with a detailed description.
FAQs
A pytest plugin to enable format checking with black
We found that pytest-black demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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