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# Copyright (c) 2008 Jonathan M. Lange. See LICENSE for details.
"""Tests for matchers."""
import doctest
from testtools import (
Matcher, # check that Matcher is exposed at the top level for docs.
TestCase,
)
from testtools.matchers import (
Equals,
DocTestMatches,
MatchesAny,
)
class TestMatchersInterface:
def test_matches_match(self):
matcher = self.matches_matcher
matches = self.matches_matches
mismatches = self.matches_mismatches
for candidate in matches:
self.assertEqual(None, matcher.match(candidate))
for candidate in mismatches:
mismatch = matcher.match(candidate)
self.assertNotEqual(None, mismatch)
self.assertNotEqual(None, getattr(mismatch, 'describe', None))
def test__str__(self):
# [(expected, object to __str__)].
examples = self.str_examples
for expected, matcher in examples:
self.assertThat(matcher, DocTestMatches(expected))
def test_describe_difference(self):
# [(expected, matchee, matcher), ...]
examples = self.describe_examples
for difference, matchee, matcher in examples:
mismatch = matcher.match(matchee)
self.assertEqual(difference, mismatch.describe())
class TestDocTestMatchesInterface(TestCase, TestMatchersInterface):
matches_matcher = DocTestMatches("Ran 1 test in ...s", doctest.ELLIPSIS)
matches_matches = ["Ran 1 test in 0.000s", "Ran 1 test in 1.234s"]
matches_mismatches = ["Ran 1 tests in 0.000s", "Ran 2 test in 0.000s"]
str_examples = [("DocTestMatches('Ran 1 test in ...s\\n')",
DocTestMatches("Ran 1 test in ...s")),
("DocTestMatches('foo\\n', flags=8)", DocTestMatches("foo", flags=8)),
]
describe_examples = [('Expected:\n Ran 1 tests in ...s\nGot:\n'
' Ran 1 test in 0.123s\n', "Ran 1 test in 0.123s",
DocTestMatches("Ran 1 tests in ...s", doctest.ELLIPSIS))]
class TestDocTestMatchesSpecific(TestCase):
def test___init__simple(self):
matcher = DocTestMatches("foo")
self.assertEqual("foo\n", matcher.want)
def test___init__flags(self):
matcher = DocTestMatches("bar\n", doctest.ELLIPSIS)
self.assertEqual("bar\n", matcher.want)
self.assertEqual(doctest.ELLIPSIS, matcher.flags)
class TestEqualsInterface(TestCase, TestMatchersInterface):
matches_matcher = Equals(1)
matches_matches = [1]
matches_mismatches = [2]
str_examples = [("Equals(1)", Equals(1)), ("Equals('1')", Equals('1'))]
describe_examples = [("1 != 2", 2, Equals(1))]
class TestMatchersAnyInterface(TestCase, TestMatchersInterface):
matches_matcher = MatchesAny(DocTestMatches("1"), DocTestMatches("2"))
matches_matches = ["1", "2"]
matches_mismatches = ["3"]
str_examples = [(
"MatchesAny(DocTestMatches('1\\n'), DocTestMatches('2\\n'))",
MatchesAny(DocTestMatches("1"), DocTestMatches("2"))),
]
describe_examples = [("""Differences: [
Expected:
1
Got:
3
Expected:
2
Got:
3
]
""",
"3", MatchesAny(DocTestMatches("1"), DocTestMatches("2")))]
def test_suite():
from unittest import TestLoader
return TestLoader().loadTestsFromName(__name__)
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