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# Copyright 2017 - Nokia Networks.
#
# 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.
from mistral_lib import serialization
from mistral_lib.tests import base
class MyClass(serialization.MistralSerializable):
def __init__(self, a, b):
self.a = a
self.b = b
def __eq__(self, other):
if not isinstance(other, MyClass):
return False
return other.a == self.a and other.b == self.b
class MyClassSerializer(serialization.DictBasedSerializer):
def serialize_to_dict(self, entity):
return {'a': entity.a, 'b': entity.b}
def deserialize_from_dict(self, entity_dict):
return MyClass(entity_dict['a'], entity_dict['b'])
class SerializationTest(base.TestCase):
def setUp(self):
super(SerializationTest, self).setUp()
serialization.register_serializer(MyClass, MyClassSerializer())
self.addCleanup(serialization.unregister_serializer, MyClass)
def test_dict_based_serializer(self):
obj = MyClass('a', 'b')
serializer = MyClassSerializer()
s = serializer.serialize(obj)
self.assertEqual(obj, serializer.deserialize(s))
self.assertIsNone(serializer.serialize(None))
self.assertIsNone(serializer.deserialize(None))
def test_polymorphic_serializer_primitive_types(self):
serializer = serialization.get_polymorphic_serializer()
self.assertEqual(17, serializer.deserialize(serializer.serialize(17)))
self.assertEqual(
0.34,
serializer.deserialize(serializer.serialize(0.34))
)
self.assertEqual(-5, serializer.deserialize(serializer.serialize(-5)))
self.assertEqual(
-6.3,
serializer.deserialize(serializer.serialize(-6.3))
)
self.assertFalse(serializer.deserialize(serializer.serialize(False)))
self.assertTrue(serializer.deserialize(serializer.serialize(True)))
self.assertEqual(
'abc',
serializer.deserialize(serializer.serialize('abc'))
)
self.assertEqual(
{'a': 'b', 'c': 'd'},
serializer.deserialize(serializer.serialize({'a': 'b', 'c': 'd'}))
)
self.assertEqual(
['a', 'b', 'c'],
serializer.deserialize(serializer.serialize(['a', 'b', 'c']))
)
def test_polymorphic_serializer_custom_object(self):
serializer = serialization.get_polymorphic_serializer()
obj = MyClass('a', 'b')
s = serializer.serialize(obj)
self.assertIn('__serial_key', s)
self.assertIn('__serial_data', s)
self.assertEqual(obj, serializer.deserialize(s))
self.assertIsNone(serializer.serialize(None))
self.assertIsNone(serializer.deserialize(None))
def test_register_twice(self):
self.assertRaises(
RuntimeError,
serialization.register_serializer,
MyClass,
MyClassSerializer()
)
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