Current File : //lib/python3/dist-packages/hamcrest/core/core/issame.py
__author__ = "Jon Reid"
__copyright__ = "Copyright 2011 hamcrest.org"
__license__ = "BSD, see License.txt"
from hamcrest.core.base_matcher import BaseMatcher
class IsSame(BaseMatcher):
def __init__(self, object):
self.object = object
def _matches(self, item):
return item is self.object
def describe_to(self, description):
description.append_text('same instance as ') \
.append_text(hex(id(self.object))) \
.append_text(' ') \
.append_description_of(self.object)
def describe_mismatch(self, item, mismatch_description):
mismatch_description.append_text('was ')
if item is not None:
mismatch_description.append_text(hex(id(item))) \
.append_text(' ')
mismatch_description.append_description_of(item)
def same_instance(obj):
"""Matches if evaluated object is the same instance as a given object.
:param obj: The object to compare against as the expected value.
This matcher invokes the ``is`` identity operator to determine if the
evaluated object is the the same object as ``obj``.
"""
return IsSame(obj)
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