Update pytest-cov to 2.8.1

[pyup-bot]

This PR updates pytest-cov from 2.6.1 to 2.8.1.

Changelog

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.htmlif-you-got-custom-signal-handling>`__ or
`cleanup_on_sigterm <https://pytest-cov.readthedocs.io/en/latest/subprocess-support.htmlif-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>`_.

2.7.1

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

* Fixed source distribution manifest so that garbage ain't included in the tarball.

2.7.0

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

* Fixed ``AttributeError: 'NoneType' object has no attribute 'configure_node'`` error when ``--no-cov`` is used.
Contributed by Alexander Shadchin in `263 <https://github.com/pytest-dev/pytest-cov/pull/263>`_.
* Various testing and CI improvements. Contributed by Daniel Hahler in
`255 <https://github.com/pytest-dev/pytest-cov/pull/255>`_,
`266 <https://github.com/pytest-dev/pytest-cov/pull/266>`_,
`272 <https://github.com/pytest-dev/pytest-cov/pull/272>`_,
`271 <https://github.com/pytest-dev/pytest-cov/pull/271>`_ and
`269 <https://github.com/pytest-dev/pytest-cov/pull/269>`_.
* Improved documentation regarding subprocess and multiprocessing.
Contributed in `265 <https://github.com/pytest-dev/pytest-cov/pull/265>`_.
* Improved ``pytest_cov.embed.cleanup_on_sigterm`` to be reentrant (signal deliveries while signal handling is
running won't break stuff).
* Added ``pytest_cov.embed.cleanup_on_signal`` for customized cleanup.
* Improved cleanup code and fixed various issues with leftover data files. All contributed in
`265 <https://github.com/pytest-dev/pytest-cov/pull/265>`_ or
`262 <https://github.com/pytest-dev/pytest-cov/pull/262>`_.
* Improved examples. Now there are two examples for the common project layouts, complete with working coverage
configuration. The examples have CI testing. Contributed in
`267 <https://github.com/pytest-dev/pytest-cov/pull/267>`_.
* Improved help text for CLI options.

Links

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

[codecov]

Codecov Report

Merging #188 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #188   +/-   ##
=======================================
  Coverage   76.08%   76.08%           
=======================================
  Files           9        9           
  Lines         322      322           
  Branches       37       37           
=======================================
  Hits          245      245           
  Misses         68       68           
  Partials        9        9

---

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