Update pytest-cov to 2.8.1

[pyup-bot]

This PR updates pytest-cov from 2.5.1 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. ``` ### 2.6.1 ``` ------------------ * Added support for Pytest 4.1. Contributed by Daniel Hahler and Семён Марьясин in `253 <https://github.com/pytest-dev/pytest-cov/pull/253>`_ and `230 <https://github.com/pytest-dev/pytest-cov/pull/230>`_. * Various test and docs fixes. Contributed by Daniel Hahler in `224 <https://github.com/pytest-dev/pytest-cov/pull/224>`_ and `223 <https://github.com/pytest-dev/pytest-cov/pull/223>`_. * Fixed the "Module already imported" issue (`211 <https://github.com/pytest-dev/pytest-cov/issues/211>`_). Contributed by Daniel Hahler in `228 <https://github.com/pytest-dev/pytest-cov/pull/228>`_. ``` ### 2.6.0 ``` ------------------ * Dropped support for Python < 3.4, Pytest < 3.5 and Coverage < 4.4. * Fixed some documentation formatting. Contributed by Jean Jordaan and Julian. * Added an example with ``addopts`` in documentation. Contributed by Samuel Giffard in `195 <https://github.com/pytest-dev/pytest-cov/pull/195>`_. * Fixed ``TypeError: 'NoneType' object is not iterable`` in certain xdist configurations. Contributed by Jeremy Bowman in `213 <https://github.com/pytest-dev/pytest-cov/pull/213>`_. * Added a ``no_cover`` marker and fixture. Fixes `78 <https://github.com/pytest-dev/pytest-cov/issues/78>`_. * Fixed broken ``no_cover`` check when running doctests. Contributed by Terence Honles in `200 <https://github.com/pytest-dev/pytest-cov/pull/200>`_. * Fixed various issues with path normalization in reports (when combining coverage data from parallel mode). Fixes `130 <https://github.com/pytest-dev/pytest-cov/issues/161>`_. Contributed by Ryan Hiebert & Ionel Cristian Mărieș in `178 <https://github.com/pytest-dev/pytest-cov/pull/178>`_. * Report generation failures don't raise exceptions anymore. A warning will be logged instead. Fixes `161 <https://github.com/pytest-dev/pytest-cov/issues/161>`_. * Fixed multiprocessing issue on Windows (empty env vars are not passed). Fixes `165 <https://github.com/pytest-dev/pytest-cov/issues/165>`_. ```

Links

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