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55 lines
2.0 KiB
Python
55 lines
2.0 KiB
Python
from hamcrest.core.base_matcher import BaseMatcher
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from hamcrest.core.helpers.hasmethod import hasmethod
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from hamcrest.core.helpers.wrap_matcher import wrap_matcher
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__author__ = "Jon Reid"
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__copyright__ = "Copyright 2011 hamcrest.org"
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__license__ = "BSD, see License.txt"
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class IsDictContaining(BaseMatcher):
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def __init__(self, key_matcher, value_matcher):
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self.key_matcher = key_matcher
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self.value_matcher = value_matcher
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def _matches(self, dictionary):
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if hasmethod(dictionary, 'items'):
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for key, value in dictionary.items():
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if self.key_matcher.matches(key) and self.value_matcher.matches(value):
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return True
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return False
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def describe_to(self, description):
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description.append_text('a dictionary containing [') \
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.append_description_of(self.key_matcher) \
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.append_text(': ') \
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.append_description_of(self.value_matcher) \
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.append_text(']')
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def has_entry(key_match, value_match):
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"""Matches if dictionary contains key-value entry satisfying a given pair
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of matchers.
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:param key_match: The matcher to satisfy for the key, or an expected value
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for :py:func:`~hamcrest.core.core.isequal.equal_to` matching.
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:param value_match: The matcher to satisfy for the value, or an expected
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value for :py:func:`~hamcrest.core.core.isequal.equal_to` matching.
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This matcher iterates the evaluated dictionary, searching for any key-value
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entry that satisfies ``key_match`` and ``value_match``. If a matching entry
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is found, ``has_entry`` is satisfied.
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Any argument that is not a matcher is implicitly wrapped in an
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:py:func:`~hamcrest.core.core.isequal.equal_to` matcher to check for
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equality.
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Examples::
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has_entry(equal_to('foo'), equal_to(1))
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has_entry('foo', 1)
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"""
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return IsDictContaining(wrap_matcher(key_match), wrap_matcher(value_match))
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