Viewing file:  stringcontainsinorder.py (1.73 KB) -rw-r--r--
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from hamcrest.core.base_matcher import BaseMatcher
from hamcrest.core.description import Description
from hamcrest.core.helpers.hasmethod import hasmethod
from hamcrest.core.matcher import Matcher
__author__ = "Romilly Cocking"
__copyright__ = "Copyright 2011 hamcrest.org"
__license__ = "BSD, see License.txt"
class StringContainsInOrder(BaseMatcher[str]):
def __init__(self, *substrings) -> None:
for substring in substrings:
if not isinstance(substring, str):
raise TypeError(self.__class__.__name__ + " requires string arguments")
self.substrings = substrings
def _matches(self, item: str) -> bool:
if not hasmethod(item, "find"):
return False
from_index = 0
for substring in self.substrings:
from_index = item.find(substring, from_index)
if from_index == -1:
return False
return True
def describe_to(self, description: Description) -> None:
description.append_list("a string containing ", ", ", " in order", self.substrings)
def string_contains_in_order(*substrings: str) -> Matcher[str]:
"""Matches if object is a string containing a given list of substrings in
relative order.
:param string1,...: A comma-separated list of strings.
This matcher first checks whether the evaluated object is a string. If so,
it checks whether it contains a given list of strings, in relative order to
each other. The searches are performed starting from the beginning of the
evaluated string.
Example::
string_contains_in_order("bc", "fg", "jkl")
will match "abcdefghijklm".
"""
return StringContainsInOrder(*substrings)
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