Pytest deprecation warnings

[tophers42]

Just started using pytest-black and I'm loving it, but I'm getting a bunch of deprecation warnings:

============================================================================================================= warnings summary ==============================================================================================================
/usr/local/lib/python3.8/site-packages/pytest_black.py:26: 84 tests with warnings
  /usr/local/lib/python3.8/site-packages/pytest_black.py:26: PytestDeprecationWarning: direct construction of BlackItem has been deprecated, please use BlackItem.from_parent
    return BlackItem(path, parent)

-- Docs: https://docs.pytest.org/en/latest/warnings.html

Requirements.txt:

pytest==5.4.1
pytest-black==0.3.8

[paddycarey]

Thanks for the report! Will get that cleaned up soon (or PRs very welcome of course).

[tophers42]

I'm happy to try an put up a PR. It'll take me a bit to get up to speed on what's going on.