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from __future__ import absolute_import |
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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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from hamcrest.core.base_matcher import BaseMatcher, Matcher |
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from hamcrest.core.helpers.wrap_matcher import wrap_matcher, is_matchable_type |
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from .isequal import equal_to |
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from .isinstanceof import instance_of |
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class IsNot(BaseMatcher): |
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def __init__(self, matcher): |
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self.matcher = matcher |
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def _matches(self, item): |
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return not self.matcher.matches(item) |
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def describe_to(self, description): |
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description.append_text('not ').append_description_of(self.matcher) |
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def wrap_value_or_type(x): |
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if is_matchable_type(x): |
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return instance_of(x) |
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else: |
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return wrap_matcher(x) |
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def is_not(match): |
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"""Inverts the given matcher to its logical negation. |
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:param match: The matcher to negate. |
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This matcher compares the evaluated object to the negation of the given |
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matcher. If the ``match`` argument is not a matcher, it is implicitly |
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wrapped in an :py:func:`~hamcrest.core.core.isequal.equal_to` matcher to |
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check for equality, and thus matches for inequality. |
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Examples:: |
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assert_that(cheese, is_not(equal_to(smelly))) |
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assert_that(cheese, is_not(smelly)) |
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""" |
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return IsNot(wrap_value_or_type(match)) |
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def not_(match): |
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"""Alias of :py:func:`is_not` for better readability of negations. |
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Examples:: |
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assert_that(alist, not_(has_item(item))) |
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""" |
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return is_not(match) |
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hamcrest /
PyHamcrest
