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Commit 3a8ee652 authored by Jean-Paul Calderone's avatar Jean-Paul Calderone
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add some tests for our matchers

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# Copyright 2019 PrivateStorage.io, LLC
#
# 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.
"""
Tests for ``_secureaccesstokenauthorizer.tests.matchers``.
"""
from zope.interface import (
Interface,
implementer,
)
from testtools import (
TestCase,
)
from testtools.matchers import (
Not,
Is,
)
from .matchers import (
Provides,
returns,
)
class IX(Interface):
pass
class IY(Interface):
pass
@implementer(IX)
class X(object):
pass
class Z(object):
pass
class ProvidesTests(TestCase):
"""
Tests for ``Provides``.
"""
def test_match(self):
"""
``Provides.match`` returns ``None`` when the given object provides any of
the configured interfaces.
"""
self.assertThat(
Provides([IX, IY]).match(X()),
Is(None),
)
def test_mismatch(self):
"""
``Provides.match`` does not return ``None`` when the given object provides
none of the configured interfaces.
"""
self.assertThat(
Provides([IX, IY]).match(Z()),
Not(Is(None)),
)
class ReturnsTests(TestCase):
"""
Tests for ``returns``.
"""
def test_match(self):
"""
``returns(m)`` returns a matcher that matches when the given object
returns a value matched by ``m``.
"""
result = object()
self.assertThat(
returns(Is(result)).match(lambda: result),
Is(None),
)
def test_mismatch(self):
"""
``returns(m)`` returns a matcher that does not match when the given object
returns a value not matched by ``m``.
"""
result = object()
other = object()
self.assertThat(
returns(Is(result)).match(lambda: other),
Not(Is(None)),
)
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