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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 MatchInAnyOrder(object): |
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def __init__(self, matchers, mismatch_description): |
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self.matchers = matchers[:] |
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self.mismatch_description = mismatch_description |
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def matches(self, item): |
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return self.isnotsurplus(item) and self.ismatched(item) |
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def isfinished(self, sequence): |
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if not self.matchers: |
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return True |
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if self.mismatch_description: |
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self.mismatch_description.append_text('no item matches: ') \ |
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.append_list('', ', ', '', self.matchers) \ |
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.append_text(' in ') \ |
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.append_list('[', ', ', ']', sequence) |
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return False |
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def isnotsurplus(self, item): |
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if not self.matchers: |
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if self.mismatch_description: |
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self.mismatch_description.append_text('not matched: ') \ |
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.append_description_of(item) |
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return False |
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return True |
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def ismatched(self, item): |
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for index, matcher in enumerate(self.matchers): |
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if matcher.matches(item): |
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del self.matchers[index] |
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return True |
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if self.mismatch_description: |
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self.mismatch_description.append_text('not matched: ') \ |
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.append_description_of(item) |
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return False |
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class IsSequenceContainingInAnyOrder(BaseMatcher): |
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def __init__(self, matchers): |
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self.matchers = matchers |
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def matches(self, sequence, mismatch_description=None): |
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try: |
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sequence = list(sequence) |
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matchsequence = MatchInAnyOrder(self.matchers, mismatch_description) |
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for item in sequence: |
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if not matchsequence.matches(item): |
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return False |
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return matchsequence.isfinished(sequence) |
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except TypeError: |
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if mismatch_description: |
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super(IsSequenceContainingInAnyOrder, self) \ |
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.describe_mismatch(sequence, mismatch_description) |
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return False |
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def describe_mismatch(self, item, mismatch_description): |
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self.matches(item, mismatch_description) |
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def describe_to(self, description): |
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description.append_text('a sequence over ') \ |
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.append_list('[', ', ', ']', self.matchers) \ |
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.append_text(' in any order') |
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def contains_inanyorder(*items): |
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"""Matches if sequences's elements, in any order, satisfy a given list of |
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matchers. |
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:param match1,...: A comma-separated list of matchers. |
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This matcher iterates the evaluated sequence, seeing if each element |
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satisfies any of the given matchers. The matchers are tried from left to |
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right, and when a satisfied matcher is found, it is no longer a candidate |
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for the remaining elements. If a one-to-one correspondence is established |
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between elements and matchers, ``contains_inanyorder`` 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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""" |
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matchers = [] |
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for item in items: |
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matchers.append(wrap_matcher(item)) |
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return IsSequenceContainingInAnyOrder(matchers) |
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hamcrest /
PyHamcrest
