name : isequal_ignoring_whitespace.py from hamcrest.core.base_matcher import BaseMatcher from hamcrest.core.description import Description from hamcrest.core.matcher import Matcher __author__ = "Jon Reid" __copyright__ = "Copyright 2011 hamcrest.org" __license__ = "BSD, see License.txt" def stripspace(string: str) -> str: result = "" last_was_space = True for character in string: if character.isspace(): if not last_was_space: result += " " last_was_space = True else: result += character last_was_space = False return result.strip() class IsEqualIgnoringWhiteSpace(BaseMatcher[str]): def __init__(self, string) -> None: if not isinstance(string, str): raise TypeError("IsEqualIgnoringWhiteSpace requires string") self.original_string = string self.stripped_string = stripspace(string) def _matches(self, item: str) -> bool: if not isinstance(item, str): return False return self.stripped_string == stripspace(item) def describe_to(self, description: Description) -> None: description.append_description_of(self.original_string).append_text(" ignoring whitespace") def equal_to_ignoring_whitespace(string: str) -> Matcher[str]: """Matches if object is a string equal to a given string, ignoring differences in whitespace. :param string: The string to compare against as the expected value. This matcher first checks whether the evaluated object is a string. If so, it compares it with ``string``, ignoring differences in runs of whitespace. Example:: equal_to_ignoring_whitespace("hello world") will match ``"hello world"``. """ return IsEqualIgnoringWhiteSpace(string)