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__author__ = "Jon Reid"
__copyright__ = "Copyright 2011 hamcrest.org"
__license__ = "BSD, see License.txt"
from hamcrest.library.text.substringmatcher import SubstringMatcher
from hamcrest.core.helpers.hasmethod import hasmethod
class StringStartsWith(SubstringMatcher):
def __init__(self, substring):
super(StringStartsWith, self).__init__(substring)
def _matches(self, item):
if not hasmethod(item, 'startswith'):
return False
return item.startswith(self.substring)
def relationship(self):
return 'starting with'
def starts_with(substring):
"""Matches if object is a string starting with a given string.
:param string: The string to search for.
This matcher first checks whether the evaluated object is a string. If so,
it checks if ``string`` matches the beginning characters of the evaluated
object.
Example::
starts_with("foo")
will match "foobar".
"""
return StringStartsWith(substring)
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