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lib
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python3
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dist-packages
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hamcrest
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core
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Filename :
base_matcher.py
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from __future__ import absolute_import __author__ = "Jon Reid" __copyright__ = "Copyright 2011 hamcrest.org" __license__ = "BSD, see License.txt" from hamcrest.core.matcher import Matcher from hamcrest.core.string_description import tostring class BaseMatcher(Matcher): """Base class for all :py:class:`~hamcrest.core.matcher.Matcher` implementations. Most implementations can just implement :py:obj:`_matches`, leaving the handling of any mismatch description to the ``matches`` method. But if it makes more sense to generate the mismatch description during the matching, override :py:meth:`~hamcrest.core.matcher.Matcher.matches` instead. """ def __str__(self): return tostring(self) def _matches(self, item): raise NotImplementedError('_matches') def matches(self, item, mismatch_description=None): match_result = self._matches(item) if not match_result and mismatch_description: self.describe_mismatch(item, mismatch_description) return match_result def describe_mismatch(self, item, mismatch_description): mismatch_description.append_text('was ').append_description_of(item)