140 lines
4.0 KiB
Python
140 lines
4.0 KiB
Python
# Copyright 2013-2014 DataStax, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from tests.integration import PROTOCOL_VERSION
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try:
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import unittest2 as unittest
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except ImportError:
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import unittest # noqa
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from cassandra.cluster import Cluster
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from cassandra.query import tuple_factory, named_tuple_factory, dict_factory, ordered_dict_factory
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from cassandra.util import OrderedDict
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class TestFactories(unittest.TestCase):
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"""
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Test different row_factories and access code
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"""
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truncate = '''
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TRUNCATE test3rf.test
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'''
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insert1 = '''
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INSERT INTO test3rf.test
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( k , v )
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VALUES
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( 1 , 1 )
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'''
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insert2 = '''
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INSERT INTO test3rf.test
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( k , v )
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VALUES
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( 2 , 2 )
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'''
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select = '''
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SELECT * FROM test3rf.test
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'''
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def test_tuple_factory(self):
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cluster = Cluster(protocol_version=PROTOCOL_VERSION)
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session = cluster.connect()
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session.row_factory = tuple_factory
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session.execute(self.truncate)
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session.execute(self.insert1)
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session.execute(self.insert2)
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result = session.execute(self.select)
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self.assertIsInstance(result, list)
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self.assertIsInstance(result[0], tuple)
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for row in result:
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self.assertEqual(row[0], row[1])
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self.assertEqual(result[0][0], result[0][1])
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self.assertEqual(result[0][0], 1)
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self.assertEqual(result[1][0], result[1][1])
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self.assertEqual(result[1][0], 2)
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def test_named_tuple_factoryy(self):
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cluster = Cluster(protocol_version=PROTOCOL_VERSION)
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session = cluster.connect()
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session.row_factory = named_tuple_factory
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session.execute(self.truncate)
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session.execute(self.insert1)
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session.execute(self.insert2)
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result = session.execute(self.select)
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self.assertIsInstance(result, list)
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for row in result:
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self.assertEqual(row.k, row.v)
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self.assertEqual(result[0].k, result[0].v)
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self.assertEqual(result[0].k, 1)
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self.assertEqual(result[1].k, result[1].v)
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self.assertEqual(result[1].k, 2)
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def test_dict_factory(self):
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cluster = Cluster(protocol_version=PROTOCOL_VERSION)
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session = cluster.connect()
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session.row_factory = dict_factory
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session.execute(self.truncate)
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session.execute(self.insert1)
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session.execute(self.insert2)
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result = session.execute(self.select)
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self.assertIsInstance(result, list)
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self.assertIsInstance(result[0], dict)
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for row in result:
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self.assertEqual(row['k'], row['v'])
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self.assertEqual(result[0]['k'], result[0]['v'])
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self.assertEqual(result[0]['k'], 1)
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self.assertEqual(result[1]['k'], result[1]['v'])
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self.assertEqual(result[1]['k'], 2)
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def test_ordered_dict_factory(self):
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cluster = Cluster(protocol_version=PROTOCOL_VERSION)
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session = cluster.connect()
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session.row_factory = ordered_dict_factory
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session.execute(self.truncate)
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session.execute(self.insert1)
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session.execute(self.insert2)
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result = session.execute(self.select)
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self.assertIsInstance(result, list)
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self.assertIsInstance(result[0], OrderedDict)
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for row in result:
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self.assertEqual(row['k'], row['v'])
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self.assertEqual(result[0]['k'], result[0]['v'])
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self.assertEqual(result[0]['k'], 1)
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self.assertEqual(result[1]['k'], result[1]['v'])
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self.assertEqual(result[1]['k'], 2)
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