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[3.7] bpo-37094: Add example for TestCase.skipTest in unittest doc (GH-13645) #13701

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May 31, 2019
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[3.7] bpo-37094: Add example for TestCase.skipTest in unittest doc (GH-13645) #13701

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16 changes: 12 additions & 4 deletions Doc/library/unittest.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -510,7 +510,8 @@ that is broken and will fail, but shouldn't be counted as a failure on a
:class:`TestResult`.

Skipping a test is simply a matter of using the :func:`skip` :term:`decorator`
or one of its conditional variants.
or one of its conditional variants, calling :meth:`TestCase.skipTest` within a
:meth:`~TestCase.setUp` or test method, or raising :exc:`SkipTest` directly.

Basic skipping looks like this::

Expand All @@ -531,16 +532,23 @@ Basic skipping looks like this::
# windows specific testing code
pass

def test_maybe_skipped(self):
if not external_resource_available():
self.skipTest("external resource not available")
# test code that depends on the external resource
pass

This is the output of running the example above in verbose mode::

test_format (__main__.MyTestCase) ... skipped 'not supported in this library version'
test_nothing (__main__.MyTestCase) ... skipped 'demonstrating skipping'
test_maybe_skipped (__main__.MyTestCase) ... skipped 'external resource not available'
test_windows_support (__main__.MyTestCase) ... skipped 'requires Windows'

----------------------------------------------------------------------
Ran 3 tests in 0.005s
Ran 4 tests in 0.005s

OK (skipped=3)
OK (skipped=4)

Classes can be skipped just like methods::

Expand Down Expand Up @@ -568,7 +576,7 @@ the test unless the passed object has a certain attribute::
return lambda func: func
return unittest.skip("{!r} doesn't have {!r}".format(obj, attr))

The following decorators implement test skipping and expected failures:
The following decorators and exception implement test skipping and expected failures:

.. decorator:: skip(reason)

Expand Down