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# Copyright DataStax, Inc.
#
# 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 uuid import uuid4
from tests.integration.cqlengine.base import BaseCassEngTestCase
from cassandra.cqlengine.management import sync_table
from cassandra.cqlengine.management import drop_table
from cassandra.cqlengine.models import Model
from cassandra.cqlengine import columns
class TestModel(Model):
id = columns.UUID(primary_key=True, default=lambda:uuid4())
count = columns.Integer()
text = columns.Text(required=False)
class TestEqualityOperators(BaseCassEngTestCase):
@classmethod
def setUpClass(cls):
super(TestEqualityOperators, cls).setUpClass()
sync_table(TestModel)
def setUp(self):
super(TestEqualityOperators, self).setUp()
self.t0 = TestModel.create(count=5, text='words')
self.t1 = TestModel.create(count=5, text='words')
@classmethod
def tearDownClass(cls):
super(TestEqualityOperators, cls).tearDownClass()
drop_table(TestModel)
def test_an_instance_evaluates_as_equal_to_itself(self):
"""
"""
assert self.t0 == self.t0
def test_two_instances_referencing_the_same_rows_and_different_values_evaluate_not_equal(self):
"""
"""
t0 = TestModel.get(id=self.t0.id)
t0.text = 'bleh'
assert t0 != self.t0
def test_two_instances_referencing_the_same_rows_and_values_evaluate_equal(self):
"""
"""
t0 = TestModel.get(id=self.t0.id)
assert t0 == self.t0
def test_two_instances_referencing_different_rows_evaluate_to_not_equal(self):
"""
"""
assert self.t0 != self.t1
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