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Add empty_parameter_set_mark ini option documentation to the parametrize doc #4220

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Merged
nicoddemus merged 1 commit into from
Oct 23, 2018
Merged

Add empty_parameter_set_mark ini option documentation to the parametrize doc #4220

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1 change: 1 addition & 0 deletions changelog/3851.doc.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Add reference to ``empty_parameter_set_mark`` ini option in documentation of ``@pytest.mark.parametrize``
4 changes: 4 additions & 0 deletions doc/en/parametrize.rst
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Expand Up @@ -114,6 +114,10 @@ Let's run this::
The one parameter set which caused a failure previously now
shows up as an "xfailed (expected to fail)" test.

In case the values provided to ``parametrize`` result in an empty list - for
example, if they're dynamically generated by some function - the behaviour of
pytest is defined by the :confval:`empty_parameter_set_mark` option.

To get all combinations of multiple parametrized arguments you can stack
``parametrize`` decorators::

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