234 lines
7.7 KiB
Python
234 lines
7.7 KiB
Python
# Copyright 2013-2017 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 get_server_versions, use_singledc, PROTOCOL_VERSION, BasicSharedKeyspaceUnitTestCaseWFunctionTable, BasicSharedKeyspaceUnitTestCase, execute_until_pass
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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, ResultSet
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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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def setup_module():
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use_singledc()
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class NameTupleFactory(BasicSharedKeyspaceUnitTestCase):
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def setUp(self):
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super(NameTupleFactory, self).setUp()
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self.session.row_factory = named_tuple_factory
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ddl = '''
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CREATE TABLE {0}.{1} (
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k int PRIMARY KEY,
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v1 text,
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v2 text,
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v3 text)'''.format(self.ks_name, self.function_table_name)
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self.session.execute(ddl)
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execute_until_pass(self.session, ddl)
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def test_sanitizing(self):
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"""
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Test to ensure that same named results are surfaced in the NamedTupleFactory
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Creates a table with a few different text fields. Inserts a few values in that table.
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It then fetches the values and confirms that despite all be being selected as the same name
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they are propagated in the result set differently.
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@since 3.3
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@jira_ticket PYTHON-467
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@expected_result duplicate named results have unique row names.
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@test_category queries
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"""
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for x in range(5):
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insert1 = '''
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INSERT INTO {0}.{1}
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( k , v1, v2, v3 )
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VALUES
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( 1 , 'v1{2}', 'v2{2}','v3{2}' )
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'''.format(self.keyspace_name, self.function_table_name, str(x))
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self.session.execute(insert1)
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query = "SELECT v1 AS duplicate, v2 AS duplicate, v3 AS duplicate from {0}.{1}".format(self.ks_name, self.function_table_name)
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rs = self.session.execute(query)
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row = rs[0]
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self.assertTrue(hasattr(row, 'duplicate'))
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self.assertTrue(hasattr(row, 'duplicate_'))
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self.assertTrue(hasattr(row, 'duplicate__'))
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class RowFactoryTests(BasicSharedKeyspaceUnitTestCaseWFunctionTable):
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"""
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Test different row_factories and access code
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"""
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def setUp(self):
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super(RowFactoryTests, self).setUp()
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self.insert1 = '''
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INSERT INTO {0}.{1}
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( k , v )
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VALUES
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( 1 , 1 )
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'''.format(self.keyspace_name, self.function_table_name)
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self.insert2 = '''
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INSERT INTO {0}.{1}
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( k , v )
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VALUES
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( 2 , 2 )
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'''.format(self.keyspace_name, self.function_table_name)
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self.select = '''
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SELECT * FROM {0}.{1}
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'''.format(self.keyspace_name, self.function_table_name)
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def tearDown(self):
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self.drop_function_table()
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def test_tuple_factory(self):
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session = self.session
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session.row_factory = tuple_factory
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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, ResultSet)
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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_factory(self):
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session = self.session
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session.row_factory = named_tuple_factory
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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, ResultSet)
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result = list(result)
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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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session = self.session
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session.row_factory = dict_factory
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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, ResultSet)
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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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session = self.session
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session.row_factory = ordered_dict_factory
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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, ResultSet)
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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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class NamedTupleFactoryAndNumericColNamesTests(unittest.TestCase):
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"""
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Test for PYTHON-122: Improve Error Handling/Reporting for named_tuple_factory and Numeric Column Names
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"""
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@classmethod
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def setup_class(cls):
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cls.cluster = Cluster(protocol_version=PROTOCOL_VERSION)
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cls.session = cls.cluster.connect()
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cls._cass_version, cls._cql_version = get_server_versions()
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ddl = '''
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CREATE TABLE test1rf.table_num_col ( key blob PRIMARY KEY, "626972746864617465" blob )
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WITH COMPACT STORAGE'''
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cls.session.execute(ddl)
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@classmethod
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def teardown_class(cls):
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cls.session.execute("DROP TABLE test1rf.table_num_col")
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cls.cluster.shutdown()
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def test_no_exception_on_select(self):
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"""
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no exception on SELECT for numeric column name
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"""
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try:
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self.session.execute('SELECT * FROM test1rf.table_num_col')
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except ValueError as e:
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self.fail("Unexpected ValueError exception: %s" % e.message)
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def test_can_select_using_alias(self):
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"""
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can SELECT "<numeric col name>" AS aliases
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"""
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if self._cass_version < (2, 0, 0):
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raise unittest.SkipTest("Alias in SELECT not supported before 2.0")
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try:
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self.session.execute('SELECT key, "626972746864617465" AS my_col from test1rf.table_num_col')
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except ValueError as e:
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self.fail("Unexpected ValueError exception: %s" % e.message)
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def test_can_select_with_dict_factory(self):
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"""
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can SELECT numeric column using dict_factory
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"""
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self.session.row_factory = dict_factory
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try:
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self.session.execute('SELECT * FROM test1rf.table_num_col')
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except ValueError as e:
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self.fail("Unexpected ValueError exception: %s" % e.message)
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