92 lines
2.5 KiB
ReStructuredText
92 lines
2.5 KiB
ReStructuredText
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.. _features:
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pytest: helps you write better programs
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=======================================
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The ``pytest`` framework makes it easy to write small tests, yet
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scales to support complex functional testing for applications and libraries.
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An example of a simple test:
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.. code-block:: python
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# content of test_sample.py
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def inc(x):
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return x + 1
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def test_answer():
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assert inc(3) == 5
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To execute it::
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$ pytest
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=========================== test session starts ============================
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platform linux -- Python 3.x.y, pytest-3.x.y, py-1.x.y, pluggy-0.x.y
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rootdir: $REGENDOC_TMPDIR, inifile:
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collected 1 item
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test_sample.py F [100%]
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================================= FAILURES =================================
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_______________________________ test_answer ________________________________
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def test_answer():
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> assert inc(3) == 5
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E assert 4 == 5
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E + where 4 = inc(3)
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test_sample.py:6: AssertionError
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========================= 1 failed in 0.12 seconds =========================
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Due to ``pytest``'s detailed assertion introspection, only plain ``assert`` statements are used.
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See :ref:`Getting Started <getstarted>` for more examples.
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Features
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--------
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- Detailed info on failing :ref:`assert statements <assert>` (no need to remember ``self.assert*`` names);
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- :ref:`Auto-discovery <test discovery>` of test modules and functions;
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- :ref:`Modular fixtures <fixture>` for managing small or parametrized long-lived test resources;
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- Can run :ref:`unittest <unittest>` (including trial) and :ref:`nose <noseintegration>` test suites out of the box;
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- Python 2.7, Python 3.4+, PyPy 2.3, Jython 2.5 (untested);
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- Rich plugin architecture, with over 315+ `external plugins <http://plugincompat.herokuapp.com>`_ and thriving community;
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Documentation
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-------------
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Please see :ref:`Contents <toc>` for full documentation, including installation, tutorials and PDF documents.
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Bugs/Requests
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-------------
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Please use the `GitHub issue tracker <https://github.com/pytest-dev/pytest/issues>`_ to submit bugs or request features.
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Changelog
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---------
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Consult the :ref:`Changelog <changelog>` page for fixes and enhancements of each version.
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License
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-------
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Copyright Holger Krekel and others, 2004-2017.
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Distributed under the terms of the `MIT`_ license, pytest is free and open source software.
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.. _`MIT`: https://github.com/pytest-dev/pytest/blob/master/LICENSE
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