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Merge pull request #4220 from anpr/doc_raise_on_empty_parameterset 

Add `empty_parameter_set_mark` ini option documentation to the parametrize doc
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Bruno Oliveira 2018-10-23 19:10:44 -03:00 committed by GitHub
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changelog/3851.doc.rst Normal file
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Add reference to ``empty_parameter_set_mark`` ini option in documentation of ``@pytest.mark.parametrize``

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doc/en/parametrize.rst
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@ -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::