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__author__ = "Jon Reid"
__copyright__ = "Copyright 2011 hamcrest.org"
__license__ = "BSD, see License.txt"
from hamcrest.core.base_matcher import BaseMatcher
import six
def stripspace(string):
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):
def __init__(self, string):
if not isinstance(string, six.string_types):
raise TypeError('IsEqualIgnoringWhiteSpace requires string')
self.original_string = string
self.stripped_string = stripspace(string)
def _matches(self, item):
if not isinstance(item, six.string_types):
return False
return self.stripped_string == stripspace(item)
def describe_to(self, description):
description.append_description_of(self.original_string) \
.append_text(' ignoring whitespace')
def equal_to_ignoring_whitespace(string):
"""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)
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