3dcbdafdf9
[H203] Use assertIs(Not)None to check for None (off by default) Unit test assertions tend to give better messages for more specific assertions. As a result, assertIsNone(...) is preferred over assertEqual(None, ...) and assertIs(None, ...), and assertIsNotNone(...) is preferred over assertNotEqual(None, ...) and assertIsNot(None, ...). Off by default. More information, see: http://docs.openstack.org/developer/hacking/#unit-tests-and-assertraises Change-Id: I73a9ed3e145b8f36c110725d148baf1fb0aef957
103 lines
3.5 KiB
Python
103 lines
3.5 KiB
Python
# Copyright 2014 Hewlett-Packard Development Company, L.P.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from tempest.common import custom_matchers
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from tempest.tests import base
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# Stolen from testtools/testtools/tests/matchers/helpers.py
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class TestMatchersInterface(object):
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def test_matches_match(self):
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matcher = self.matches_matcher
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matches = self.matches_matches
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mismatches = self.matches_mismatches
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for candidate in matches:
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self.assertIsNone(matcher.match(candidate))
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for candidate in mismatches:
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mismatch = matcher.match(candidate)
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self.assertIsNotNone(mismatch)
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self.assertIsNotNone(getattr(mismatch, 'describe', None))
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def test__str__(self):
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# [(expected, object to __str__)].
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from testtools.matchers._doctest import DocTestMatches
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examples = self.str_examples
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for expected, matcher in examples:
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self.assertThat(matcher, DocTestMatches(expected))
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def test_describe_difference(self):
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# [(expected, matchee, matcher), ...]
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examples = self.describe_examples
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for difference, matchee, matcher in examples:
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mismatch = matcher.match(matchee)
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self.assertEqual(difference, mismatch.describe())
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def test_mismatch_details(self):
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# The mismatch object must provide get_details, which must return a
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# dictionary mapping names to Content objects.
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examples = self.describe_examples
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for difference, matchee, matcher in examples:
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mismatch = matcher.match(matchee)
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details = mismatch.get_details()
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self.assertEqual(dict(details), details)
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class TestMatchesDictExceptForKeys(base.TestCase,
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TestMatchersInterface):
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matches_matcher = custom_matchers.MatchesDictExceptForKeys(
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{'a': 1, 'b': 2, 'c': 3, 'd': 4}, ['c', 'd'])
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matches_matches = [
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{'a': 1, 'b': 2, 'c': 3, 'd': 4},
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{'a': 1, 'b': 2, 'c': 5},
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{'a': 1, 'b': 2},
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]
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matches_mismatches = [
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{},
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{'foo': 1},
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{'a': 1, 'b': 3},
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{'a': 1, 'b': 2, 'foo': 1},
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{'a': 1, 'b': None, 'foo': 1},
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]
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str_examples = []
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describe_examples = [
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("Only in expected:\n"
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" {'a': 1, 'b': 2}\n",
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{},
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matches_matcher),
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("Only in expected:\n"
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" {'a': 1, 'b': 2}\n"
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"Only in actual:\n"
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" {'foo': 1}\n",
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{'foo': 1},
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matches_matcher),
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("Differences:\n"
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" b: expected 2, actual 3\n",
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{'a': 1, 'b': 3},
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matches_matcher),
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("Only in actual:\n"
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" {'foo': 1}\n",
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{'a': 1, 'b': 2, 'foo': 1},
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matches_matcher),
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("Only in actual:\n"
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" {'foo': 1}\n"
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"Differences:\n"
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" b: expected 2, actual None\n",
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{'a': 1, 'b': None, 'foo': 1},
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matches_matcher)
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]
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