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#7031: Add TestCase.assertIsInstance and negated method.

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This commit is contained in:
Georg Brandl 2009-10-01 20:59:31 +00:00
parent 46cc46af07
commit f895cf5d33
3 changed files with 41 additions and 0 deletions
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13
Lib/unittest/case.py
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@ -817,6 +817,19 @@ class TestCase(object):
standardMsg = 'unexpectedly None'
self.fail(self._formatMessage(msg, standardMsg))
def assertIsInstance(self, obj, cls, msg=None):
"""Same as self.assertTrue(isinstance(obj, cls)), with a nicer
default message."""
if not isinstance(obj, cls):
standardMsg = '%r is not an instance of %r' % (obj, cls)
self.fail(self._formatMessage(msg, standardMsg))
def assertNotIsInstance(self, obj, cls, msg=None):
"""Included for symmetry with assertIsInstance."""
if isinstance(obj, cls):
standardMsg = '%r is an instance of %r' % (obj, cls)
self.fail(self._formatMessage(msg, standardMsg))
def assertRaisesRegexp(self, expected_exception, expected_regexp,
callable_obj=None, *args, **kwargs):
"""Asserts that the message in a raised exception matches a regexp.