9d4c7842c1
Conflicts: cassandra/cluster.py cassandra/connection.py cassandra/io/asyncorereactor.py cassandra/io/libevreactor.py setup.py tests/integration/long/test_large_data.py
146 lines
4.0 KiB
Python
146 lines
4.0 KiB
Python
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 import InvalidRequest
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from cassandra.cluster import Cluster
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from cassandra.query import PreparedStatement
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class PreparedStatementTests(unittest.TestCase):
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def test_basic(self):
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"""
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Test basic PreparedStatement usage
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"""
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cluster = Cluster(protocol_version=PROTOCOL_VERSION)
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session = cluster.connect()
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session.execute(
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"""
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CREATE KEYSPACE preparedtests
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WITH replication = {'class': 'SimpleStrategy', 'replication_factor': '1'}
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""")
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session.set_keyspace("preparedtests")
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session.execute(
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"""
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CREATE TABLE cf0 (
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a text,
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b text,
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c text,
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PRIMARY KEY (a, b)
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)
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""")
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prepared = session.prepare(
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"""
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INSERT INTO cf0 (a, b, c) VALUES (?, ?, ?)
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""")
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self.assertIsInstance(prepared, PreparedStatement)
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bound = prepared.bind(('a', 'b', 'c'))
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session.execute(bound)
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prepared = session.prepare(
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"""
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SELECT * FROM cf0 WHERE a=?
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""")
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self.assertIsInstance(prepared, PreparedStatement)
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bound = prepared.bind(('a'))
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results = session.execute(bound)
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self.assertEqual(results, [('a', 'b', 'c')])
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def test_missing_primary_key(self):
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"""
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Ensure an InvalidRequest is thrown
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when prepared statements are missing the primary key
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"""
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cluster = Cluster(protocol_version=PROTOCOL_VERSION)
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session = cluster.connect()
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prepared = session.prepare(
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"""
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INSERT INTO test3rf.test (v) VALUES (?)
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""")
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self.assertIsInstance(prepared, PreparedStatement)
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bound = prepared.bind((1,))
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self.assertRaises(InvalidRequest, session.execute, bound)
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def test_too_many_bind_values(self):
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"""
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Ensure a ValueError is thrown when attempting to bind too many variables
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"""
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cluster = Cluster(protocol_version=PROTOCOL_VERSION)
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session = cluster.connect()
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prepared = session.prepare(
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"""
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INSERT INTO test3rf.test (v) VALUES (?)
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""")
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self.assertIsInstance(prepared, PreparedStatement)
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self.assertRaises(ValueError, prepared.bind, (1, 2))
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def test_none_values(self):
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"""
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Ensure binding None is handled correctly
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"""
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cluster = Cluster(protocol_version=PROTOCOL_VERSION)
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session = cluster.connect()
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prepared = session.prepare(
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"""
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INSERT INTO test3rf.test (k, v) VALUES (?, ?)
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""")
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self.assertIsInstance(prepared, PreparedStatement)
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bound = prepared.bind((1, None))
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session.execute(bound)
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prepared = session.prepare(
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"""
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SELECT * FROM test3rf.test WHERE k=?
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""")
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self.assertIsInstance(prepared, PreparedStatement)
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bound = prepared.bind((1,))
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results = session.execute(bound)
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self.assertEqual(results[0].v, None)
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def test_async_binding(self):
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"""
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Ensure None binding over async queries
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"""
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cluster = Cluster(protocol_version=PROTOCOL_VERSION)
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session = cluster.connect()
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prepared = session.prepare(
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"""
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INSERT INTO test3rf.test (k, v) VALUES (?, ?)
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""")
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self.assertIsInstance(prepared, PreparedStatement)
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future = session.execute_async(prepared, (873, None))
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future.result()
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prepared = session.prepare(
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"""
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SELECT * FROM test3rf.test WHERE k=?
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""")
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self.assertIsInstance(prepared, PreparedStatement)
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future = session.execute_async(prepared, (873,))
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results = future.result()
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self.assertEqual(results[0].v, None)
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