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Clarify usage of usefixtures mark in hooks 

Fix #7512

Co-authored-by: Bruno Oliveira <nicoddemus@gmail.com>
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Kelton Bassingthwaite 2020-07-21 20:00:47 -06:00 committed by GitHub
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changelog/7422.doc.rst Normal file
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Clarified when the ``usefixtures`` mark can apply fixtures to test.

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doc/en/reference.rst
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@ -180,15 +180,18 @@ pytest.mark.usefixtures
Mark a test function as using the given fixture names. Mark a test function as using the given fixture names.
.. warning::
This mark has no effect when applied
to a **fixture** function.
.. py:function:: pytest.mark.usefixtures(*names) .. py:function:: pytest.mark.usefixtures(*names)
:param args: the names of the fixture to use, as strings :param args: the names of the fixture to use, as strings
.. note::
When using `usefixtures` in hooks, it can only load fixtures when applied to a test function before test setup
(for example in the `pytest_collection_modifyitems` hook).
Also not that his mark has no effect when applied to **fixtures**.
.. _`pytest.mark.xfail ref`: .. _`pytest.mark.xfail ref`: