Update pytest-cov to 4.0.0

[pyup-bot]

This PR updates pytest-cov from 2.7.1 to 4.0.0.

Changelog

4.0.0

------------------

**Note that this release drops support for multiprocessing.**


* `--cov-fail-under` no longer causes `pytest --collect-only` to fail
Contributed by Zac Hatfield-Dodds in `511 <https://github.com/pytest-dev/pytest-cov/pull/511>`_.
* Dropped support for multiprocessing (mostly because `issue 82408 <https://github.com/python/cpython/issues/82408>`_). This feature was
mostly working but very broken in certain scenarios and made the test suite very flaky and slow.

There is builtin multiprocessing support in coverage and you can migrate to that. All you need is this in your
``.coveragerc``::

 [run]
 concurrency = multiprocessing
 parallel = true
 sigterm = true
* Fixed deprecation in ``setup.py`` by trying to import setuptools before distutils.
Contributed by Ben Greiner in `545 <https://github.com/pytest-dev/pytest-cov/pull/545>`_.
* Removed undesirable new lines that were displayed while reporting was disabled.
Contributed by Delgan in `540 <https://github.com/pytest-dev/pytest-cov/pull/540>`_.
* Documentation fixes.
Contributed by Andre Brisco in `543 <https://github.com/pytest-dev/pytest-cov/pull/543>`_
and Colin O'Dell in `525 <https://github.com/pytest-dev/pytest-cov/pull/525>`_.
* Added support for LCOV output format via `--cov-report=lcov`. Only works with coverage 6.3+.
Contributed by Christian Fetzer in `536 <https://github.com/pytest-dev/pytest-cov/issues/536>`_.
* Modernized pytest hook implementation.
Contributed by Bruno Oliveira in `549 <https://github.com/pytest-dev/pytest-cov/pull/549>`_
and Ronny Pfannschmidt in `550 <https://github.com/pytest-dev/pytest-cov/pull/550>`_.

3.0.0

-------------------

**Note that this release drops support for Python 2.7 and Python 3.5.**

* Added support for Python 3.10 and updated various test dependencies.
Contributed by Hugo van Kemenade in
`500 <https://github.com/pytest-dev/pytest-cov/pull/500>`_.
* Switched from Travis CI to GitHub Actions. Contributed by Hugo van Kemenade in
`494 <https://github.com/pytest-dev/pytest-cov/pull/494>`_ and
`495 <https://github.com/pytest-dev/pytest-cov/pull/495>`_.
* Add a ``--cov-reset`` CLI option.
Contributed by Danilo Šegan in
`459 <https://github.com/pytest-dev/pytest-cov/pull/459>`_.
* Improved validation of ``--cov-fail-under`` CLI option.
Contributed by ... Ronny Pfannschmidt's desire for skark in
`480 <https://github.com/pytest-dev/pytest-cov/pull/480>`_.
* Dropped Python 2.7 support.
Contributed by Thomas Grainger in
`488 <https://github.com/pytest-dev/pytest-cov/pull/488>`_.
* Updated trove classifiers. Contributed by Michał Bielawski in
`481 <https://github.com/pytest-dev/pytest-cov/pull/481>`_.
* Reverted change for `toml` requirement.
Contributed by Thomas Grainger in
`477 <https://github.com/pytest-dev/pytest-cov/pull/477>`_.

2.12.1

-------------------

* Changed the `toml` requirement to be always be directly required (instead of being required through a coverage extra).
This fixes issues with pip-compile (`pip-tools1300 <https://github.com/jazzband/pip-tools/issues/1300>`_).
Contributed by Sorin Sbarnea in `472 <https://github.com/pytest-dev/pytest-cov/pull/472>`_.
* Documented ``show_contexts``.
Contributed by Brian Rutledge in `473 <https://github.com/pytest-dev/pytest-cov/pull/473>`_.

2.12.0

-------------------

* Added coverage's `toml` extra to install requirements in setup.py.
Contributed by Christian Riedel in `410 <https://github.com/pytest-dev/pytest-cov/pull/410>`_.
* Fixed ``pytest_cov.__version__`` to have the right value (string with version instead of a string
including ``__version__ =``).
* Fixed license classifier in ``setup.py``.
Contributed by Chris Sreesangkom in `467 <https://github.com/pytest-dev/pytest-cov/pull/467>`_.
* Fixed *commits since* badge.
Contributed by Terence Honles in `470 <https://github.com/pytest-dev/pytest-cov/pull/470>`_.

2.11.1

-------------------

* Fixed support for newer setuptools (v42+).
Contributed by Michał Górny in `451 <https://github.com/pytest-dev/pytest-cov/pull/451>`_.

2.11.0

-------------------

* Bumped minimum coverage requirement to 5.2.1. This prevents reporting issues.
Contributed by Mateus Berardo de Souza Terra in `433 <https://github.com/pytest-dev/pytest-cov/pull/433>`_.
* Improved sample projects (from the `examples <https://github.com/pytest-dev/pytest-cov/tree/master/examples>`_
directory) to support running `tox -e pyXY`. Now the example configures a suffixed coverage data file,
and that makes the cleanup environment unnecessary.
Contributed by Ganden Schaffner in `435 <https://github.com/pytest-dev/pytest-cov/pull/435>`_.
* Removed the empty `console_scripts` entrypoint that confused some Gentoo build script.
I didn't ask why it was so broken cause I didn't want to ruin my day.
Contributed by Michał Górny in `434 <https://github.com/pytest-dev/pytest-cov/pull/434>`_.
* Fixed the missing `coverage context <https://coverage.readthedocs.io/en/stable/contexts.html>`_
when using subprocesses.
Contributed by Bernát Gábor in `443 <https://github.com/pytest-dev/pytest-cov/pull/443>`_.
* Updated the config section in the docs.
Contributed by Pamela McA'Nulty in `429 <https://github.com/pytest-dev/pytest-cov/pull/429>`_.
* Migrated CI to travis-ci.com (from .org).

2.10.1

-------------------

* Support for ``pytest-xdist`` 2.0, which breaks compatibility with ``pytest-xdist`` before 1.22.3 (from 2017).
Contributed by Zac Hatfield-Dodds in `412 <https://github.com/pytest-dev/pytest-cov/pull/412>`_.
* Fixed the ``LocalPath has no attribute startswith`` failure that occurred when using the ``pytester`` plugin
in inline mode.

2.10.0

-------------------

* Improved the ``--no-cov`` warning. Now it's only shown if ``--no-cov`` is present before ``--cov``.
* Removed legacy pytest support. Changed ``setup.py`` so that ``pytest>=4.6`` is required.

2.9.0

------------------

* Fixed ``RemovedInPytest4Warning`` when using Pytest 3.10.
Contributed by Michael Manganiello in `354 <https://github.com/pytest-dev/pytest-cov/pull/354>`_.
* Made pytest startup faster when plugin not active by lazy-importing.
Contributed by Anders Hovmöller in `339 <https://github.com/pytest-dev/pytest-cov/pull/339>`_.
* Various CI improvements.
Contributed by Daniel Hahler in `363 <https://github.com/pytest-dev/pytest-cov/pull/>`_ and
`364 <https://github.com/pytest-dev/pytest-cov/pull/364>`_.
* Various Python support updates (drop EOL 3.4, test against 3.8 final).
Contributed by Hugo van Kemenade in
`336 <https://github.com/pytest-dev/pytest-cov/pull/336>`_ and
`367 <https://github.com/pytest-dev/pytest-cov/pull/367>`_.
* Changed ``--cov-append`` to always enable ``data_suffix`` (a coverage setting).
Contributed by Harm Geerts in
`387 <https://github.com/pytest-dev/pytest-cov/pull/387>`_.
* Changed ``--cov-append`` to handle loading previous data better
(fixes various path aliasing issues).
* Various other testing improvements, github issue templates, example updates.
* Fixed internal failures that are caused by tests that change the current working directory by
ensuring a consistent working directory when coverage is called.
See `306 <https://github.com/pytest-dev/pytest-cov/issues/306>`_ and
`coveragepy881 <https://github.com/nedbat/coveragepy/issues/881>`_

2.8.1

------------------

* Fixed `348 <https://github.com/pytest-dev/pytest-cov/issues/348>`_ -
regression when only certain reports (html or xml) are used then ``--cov-fail-under`` always fails.

2.8.0

------------------

* Fixed ``RecursionError`` that can occur when using
`cleanup_on_signal <https://pytest-cov.readthedocs.io/en/latest/subprocess-support.html#if-you-got-custom-signal-handling>`__ or
`cleanup_on_sigterm <https://pytest-cov.readthedocs.io/en/latest/subprocess-support.html#if-you-got-custom-signal-handling>`__.
See: `294 <https://github.com/pytest-dev/pytest-cov/issues/294>`_.
The 2.7.x releases of pytest-cov should be considered broken regarding aforementioned cleanup API.
* Added compatibility with future xdist release that deprecates some internals
(match pytest-xdist master/worker terminology).
Contributed by Thomas Grainger in `321 <https://github.com/pytest-dev/pytest-cov/pull/321>`_
* Fixed breakage that occurs when multiple reporting options are used.
Contributed by Thomas Grainger in `338 <https://github.com/pytest-dev/pytest-cov/pull/338>`_.
* Changed internals to use a stub instead of ``os.devnull``.
Contributed by Thomas Grainger in `332 <https://github.com/pytest-dev/pytest-cov/pull/332>`_.
* Added support for Coverage 5.0.
Contributed by Ned Batchelder in `319 <https://github.com/pytest-dev/pytest-cov/pull/319>`_.
* Added support for float values in ``--cov-fail-under``.
Contributed by Martín Gaitán in `311 <https://github.com/pytest-dev/pytest-cov/pull/311>`_.
* Various documentation fixes. Contributed by
Juanjo Bazán,
Andrew Murray and
Albert Tugushev in
`298 <https://github.com/pytest-dev/pytest-cov/pull/298>`_,
`299 <https://github.com/pytest-dev/pytest-cov/pull/299>`_ and
`307 <https://github.com/pytest-dev/pytest-cov/pull/307>`_.
* Various testing improvements. Contributed by
Ned Batchelder,
Daniel Hahler,
Ionel Cristian Mărieș and
Hugo van Kemenade in
`313 <https://github.com/pytest-dev/pytest-cov/pull/313>`_,
`314 <https://github.com/pytest-dev/pytest-cov/pull/314>`_,
`315 <https://github.com/pytest-dev/pytest-cov/pull/315>`_,
`316 <https://github.com/pytest-dev/pytest-cov/pull/316>`_,
`325 <https://github.com/pytest-dev/pytest-cov/pull/325>`_,
`326 <https://github.com/pytest-dev/pytest-cov/pull/326>`_,
`334 <https://github.com/pytest-dev/pytest-cov/pull/334>`_ and
`335 <https://github.com/pytest-dev/pytest-cov/pull/335>`_.
* Added the ``--cov-context`` CLI options that enables coverage contexts. Only works with coverage 5.0+.
Contributed by Ned Batchelder in `345 <https://github.com/pytest-dev/pytest-cov/pull/345>`_.

Links

• PyPI: https://pypi.org/project/pytest-cov
• Changelog: https://pyup.io/changelogs/pytest-cov/
• Repo: https://github.com/pytest-dev/pytest-cov