masakari/masakari/tests/unit/matchers.py

45 lines
1.7 KiB
Python

# Copyright 2016 NTT DATA
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""Matcher classes to be used inside of the testtools assertThat framework."""
import six
import testtools.matchers
class EncodedByUTF8(object):
def match(self, obj):
if isinstance(obj, six.binary_type):
if hasattr(obj, "decode"):
try:
obj.decode("utf-8")
except UnicodeDecodeError:
return testtools.matchers.Mismatch(
"%s is not encoded in UTF-8." % obj)
elif isinstance(obj, six.text_type):
try:
obj.encode("utf-8", "strict")
except UnicodeDecodeError:
return testtools.matchers.Mismatch("%s cannot be "
"encoded in UTF-8." % obj)
else:
reason = ("Type of '%(obj)s' is '%(obj_type)s', "
"should be '%(correct_type)s'."
% {
"obj": obj,
"obj_type": type(obj).__name__,
"correct_type": six.binary_type.__name__
})
return testtools.matchers.Mismatch(reason)