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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.
import unittest
from cassandra.query import BatchStatement, SimpleStatement
class BatchStatementTest(unittest.TestCase):
# TODO: this suite could be expanded; for now just adding a test covering a PR
def test_clear(self):
keyspace = 'keyspace'
routing_key = 'routing_key'
custom_payload = {'key': b'value'}
ss = SimpleStatement('whatever', keyspace=keyspace, routing_key=routing_key, custom_payload=custom_payload)
batch = BatchStatement()
batch.add(ss)
self.assertTrue(batch._statements_and_parameters)
self.assertEqual(batch.keyspace, keyspace)
self.assertEqual(batch.routing_key, routing_key)
self.assertEqual(batch.custom_payload, custom_payload)
batch.clear()
self.assertFalse(batch._statements_and_parameters)
self.assertIsNone(batch.keyspace)
self.assertIsNone(batch.routing_key)
self.assertFalse(batch.custom_payload)
batch.add(ss)
def test_clear_empty(self):
batch = BatchStatement()
batch.clear()
self.assertFalse(batch._statements_and_parameters)
self.assertIsNone(batch.keyspace)
self.assertIsNone(batch.routing_key)
self.assertFalse(batch.custom_payload)
batch.add('something')
def test_add_all(self):
batch = BatchStatement()
statements = ['%s'] * 10
parameters = [(i,) for i in range(10)]
batch.add_all(statements, parameters)
bound_statements = [t[1] for t in batch._statements_and_parameters]
str_parameters = [str(i) for i in range(10)]
self.assertEqual(bound_statements, str_parameters)
def test_len(self):
for n in 0, 10, 100:
batch = BatchStatement()
batch.add_all(statements=['%s'] * n,
parameters=[(i,) for i in range(n)])
self.assertEqual(len(batch), n)
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