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from hamcrest.core.base_matcher import BaseMatcher
from hamcrest.core.helpers.hasmethod import hasmethod
from hamcrest.core.helpers.wrap_matcher import wrap_matcher
__author__ = "Jon Reid"
__copyright__ = "Copyright 2011 hamcrest.org"
__license__ = "BSD, see License.txt"
class MatchInAnyOrder(object):
def __init__(self, matchers, mismatch_description):
self.matchers = matchers[:]
self.mismatch_description = mismatch_description
def matches(self, item):
return self.isnotsurplus(item) and self.ismatched(item)
def isfinished(self, sequence):
if not self.matchers:
return True
if self.mismatch_description:
self.mismatch_description.append_text('no item matches: ') \
.append_list('', ', ', '', self.matchers) \
.append_text(' in ') \
.append_list('[', ', ', ']', sequence)
return False
def isnotsurplus(self, item):
if not self.matchers:
if self.mismatch_description:
self.mismatch_description.append_text('not matched: ') \
.append_description_of(item)
return False
return True
def ismatched(self, item):
for index, matcher in enumerate(self.matchers):
if matcher.matches(item):
del self.matchers[index]
return True
if self.mismatch_description:
self.mismatch_description.append_text('not matched: ') \
.append_description_of(item)
return False
class IsSequenceContainingInAnyOrder(BaseMatcher):
def __init__(self, matchers):
self.matchers = matchers
def matches(self, sequence, mismatch_description=None):
try:
sequence = list(sequence)
matchsequence = MatchInAnyOrder(self.matchers, mismatch_description)
for item in sequence:
if not matchsequence.matches(item):
return False
return matchsequence.isfinished(sequence)
except TypeError:
if mismatch_description:
super(IsSequenceContainingInAnyOrder, self) \
.describe_mismatch(sequence, mismatch_description)
return False
def describe_mismatch(self, item, mismatch_description):
self.matches(item, mismatch_description)
def describe_to(self, description):
description.append_text('a sequence over ') \
.append_list('[', ', ', ']', self.matchers) \
.append_text(' in any order')
def contains_inanyorder(*items):
"""Matches if sequences's elements, in any order, satisfy a given list of
matchers.
:param match1,...: A comma-separated list of matchers.
This matcher iterates the evaluated sequence, seeing if each element
satisfies any of the given matchers. The matchers are tried from left to
right, and when a satisfied matcher is found, it is no longer a candidate
for the remaining elements. If a one-to-one correspondence is established
between elements and matchers, ``contains_inanyorder`` is satisfied.
Any argument that is not a matcher is implicitly wrapped in an
:py:func:`~hamcrest.core.core.isequal.equal_to` matcher to check for
equality.
"""
matchers = []
for item in items:
matchers.append(wrap_matcher(item))
return IsSequenceContainingInAnyOrder(matchers)