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Merge pull request #4032 from hjwp/patch-1

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add documentation of register_assert_rewrite
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Bruno Oliveira
2018-09-25 08:43:29 -03:00
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parent e85edf5212 b03bad5dbb
commit b1fbb2ab92
1 changed files with 6 additions and 2 deletions
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doc/en/assert.rst
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@@ -264,8 +264,12 @@ Advanced assertion introspection
Reporting details about a failing assertion is achieved by rewriting assert
statements before they are run. Rewritten assert statements put introspection
information into the assertion failure message. ``pytest`` only rewrites test
modules directly discovered by its test collection process, so asserts in
supporting modules which are not themselves test modules will not be rewritten.
modules directly discovered by its test collection process, so **asserts in
supporting modules which are not themselves test modules will not be rewritten**.
You can manually enable assertion rewriting for an imported module by calling
`register_assert_rewrite <https://docs.pytest.org/en/latest/writing_plugins.html#assertion-rewriting>`_
before you import it (a good place to do that is in ``conftest.py``).
.. note::