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Adding assertIs and assertIsNot methods to unittest.TestCase

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Issue #2578
This commit is contained in:
Michael Foord 2009-04-05 19:19:28 +00:00
parent 7ab5eb91b7
commit f2dfef1637
4 changed files with 54 additions and 0 deletions
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12
Lib/unittest.py
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@ -806,6 +806,18 @@ class TestCase(object):
standardMsg = '%r unexpectedly found in %r' % (member, container)
self.fail(self._formatMessage(msg, standardMsg))
def assertIs(self, expr1, expr2, msg=None):
"""Just like self.assertTrue(a is b), but with a nicer default message."""
if expr1 is not expr2:
standardMsg = '%r is not %r' % (expr1, expr2)
self.fail(self._formatMessage(msg, standardMsg))
def assertIsNot(self, expr1, expr2, msg=None):
"""Just like self.assertTrue(a is not b), but with a nicer default message."""
if expr1 is expr2:
standardMsg = 'unexpectedly identical: %r' % (expr1,)
self.fail(self._formatMessage(msg, standardMsg))
def assertDictEqual(self, d1, d2, msg=None):
self.assert_(isinstance(d1, dict), 'First argument is not a dictionary')
self.assert_(isinstance(d2, dict), 'Second argument is not a dictionary')