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# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt
"""Implementations of unittest features from the future."""
import unittest
def unittest_has(method):
"""Does `unittest.TestCase` have `method` defined?"""
return hasattr(unittest.TestCase, method)
class TestCase(unittest.TestCase):
"""Just like unittest.TestCase, but with assert methods added.
Designed to be compatible with 3.1 unittest. Methods are only defined if
`unittest` doesn't have them.
"""
# pylint: disable=missing-docstring
# Many Pythons have this method defined. But PyPy3 has a bug with it
# somehow (https://bitbucket.org/pypy/pypy/issues/2092), so always use our
# own implementation that works everywhere, at least for the ways we're
# calling it.
def assertCountEqual(self, s1, s2):
"""Assert these have the same elements, regardless of order."""
self.assertEqual(sorted(s1), sorted(s2))
if not unittest_has('assertRaisesRegex'):
def assertRaisesRegex(self, *args, **kwargs):
return self.assertRaisesRegexp(*args, **kwargs)
if not unittest_has('assertRegex'):
def assertRegex(self, *args, **kwargs):
return self.assertRegexpMatches(*args, **kwargs)
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