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dist-packages
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hamcrest
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core
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core
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described_as.py
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from hamcrest.core.base_matcher import BaseMatcher import re __author__ = "Jon Reid" __copyright__ = "Copyright 2011 hamcrest.org" __license__ = "BSD, see License.txt" ARG_PATTERN = re.compile('%([0-9]+)') class DescribedAs(BaseMatcher): def __init__(self, description_template, matcher, *values): self.template = description_template self.matcher = matcher self.values = values def matches(self, item, mismatch_description=None): return self.matcher.matches(item, mismatch_description) def describe_mismatch(self, item, mismatch_description): self.matcher.describe_mismatch(item, mismatch_description) def describe_to(self, description): text_start = 0 for match in re.finditer(ARG_PATTERN, self.template): description.append_text(self.template[text_start:match.start()]) arg_index = int(match.group()[1:]) description.append_description_of(self.values[arg_index]) text_start = match.end() if text_start < len(self.template): description.append_text(self.template[text_start:]) def described_as(description, matcher, *values): """Adds custom failure description to a given matcher. :param description: Overrides the matcher's description. :param matcher: The matcher to satisfy. :param value1,...: Optional comma-separated list of substitution values. The description may contain substitution placeholders %0, %1, etc. These will be replaced by any values that follow the matcher. """ return DescribedAs(description, matcher, *values)