50 lines
1.7 KiB
Python
50 lines
1.7 KiB
Python
from hamcrest.core.base_matcher import BaseMatcher
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from hamcrest.core.description import Description
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from hamcrest.core.helpers.hasmethod import hasmethod
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from hamcrest.core.matcher import Matcher
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__author__ = "Romilly Cocking"
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__copyright__ = "Copyright 2011 hamcrest.org"
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__license__ = "BSD, see License.txt"
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class StringContainsInOrder(BaseMatcher[str]):
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def __init__(self, *substrings) -> None:
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for substring in substrings:
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if not isinstance(substring, str):
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raise TypeError(self.__class__.__name__ + " requires string arguments")
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self.substrings = substrings
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def _matches(self, item: str) -> bool:
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if not hasmethod(item, "find"):
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return False
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from_index = 0
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for substring in self.substrings:
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from_index = item.find(substring, from_index)
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if from_index == -1:
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return False
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return True
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def describe_to(self, description: Description) -> None:
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description.append_list("a string containing ", ", ", " in order", self.substrings)
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def string_contains_in_order(*substrings: str) -> Matcher[str]:
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"""Matches if object is a string containing a given list of substrings in
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relative order.
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:param string1,...: A comma-separated list of strings.
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This matcher first checks whether the evaluated object is a string. If so,
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it checks whether it contains a given list of strings, in relative order to
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each other. The searches are performed starting from the beginning of the
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evaluated string.
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Example::
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string_contains_in_order("bc", "fg", "jkl")
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will match "abcdefghijklm".
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"""
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return StringContainsInOrder(*substrings)
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