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try:

import unittest2 as unittest

except ImportError:

import unittest # noqa

from mock import Mock

from cassandra import ProtocolVersion, UnsupportedOperation

from cassandra.protocol import (PrepareMessage, QueryMessage, ExecuteMessage,

BatchMessage)

from cassandra.query import SimpleStatement, BatchType

class MessageTest(unittest.TestCase):

def test_prepare_message(self):

"""

Test to check the appropriate calls are made

@since 3.9

@jira_ticket PYTHON-713

@expected_result the values are correctly written

@test_category connection

"""

message = PrepareMessage("a")

io = Mock()

message.send_body(io, 4)

self._check_calls(io, [(b'\x00\x00\x00\x01',), (b'a',)])

io.reset_mock()

message.send_body(io, 5)

self._check_calls(io, [(b'\x00\x00\x00\x01',), (b'a',), (b'\x00\x00\x00\x00',)])

def test_execute_message(self):

message = ExecuteMessage('1', [], 4)

io = Mock()

message.send_body(io, 4)

self._check_calls(io, [(b'\x00\x01',), (b'1',), (b'\x00\x04',), (b'\x01',), (b'\x00\x00',)])

io.reset_mock()

message.result_metadata_id = 'foo'

message.send_body(io, 5)

self._check_calls(io, [(b'\x00\x01',), (b'1',),

(b'\x00\x03',), (b'foo',),

(b'\x00\x04',),

(b'\x00\x00\x00\x01',), (b'\x00\x00',)])

def test_query_message(self):

"""

Test to check the appropriate calls are made

@since 3.9

@jira_ticket PYTHON-713

@expected_result the values are correctly written

@test_category connection

"""

message = QueryMessage("a", 3)

io = Mock()

message.send_body(io, 4)

self._check_calls(io, [(b'\x00\x00\x00\x01',), (b'a',), (b'\x00\x03',), (b'\x00',)])

io.reset_mock()

message.send_body(io, 5)

self._check_calls(io, [(b'\x00\x00\x00\x01',), (b'a',), (b'\x00\x03',), (b'\x00\x00\x00\x00',)])

def _check_calls(self, io, expected):

self.assertEqual(

tuple(c[1] for c in io.write.mock_calls),

tuple(expected)

)

def test_prepare_flag(self):

"""

Test to check the prepare flag is properly set, This should only happen for V5 at the moment.

@since 3.9

@jira_ticket PYTHON-713

@expected_result the values are correctly written

@test_category connection

"""

message = PrepareMessage("a")

io = Mock()

for version in ProtocolVersion.SUPPORTED_VERSIONS:

message.send_body(io, version)

if ProtocolVersion.uses_prepare_flags(version):

self.assertEqual(len(io.write.mock_calls), 3)

else:

self.assertEqual(len(io.write.mock_calls), 2)

io.reset_mock()

def test_prepare_flag_with_keyspace(self):

message = PrepareMessage("a", keyspace='ks')

io = Mock()

for version in ProtocolVersion.SUPPORTED_VERSIONS:

if ProtocolVersion.uses_keyspace_flag(version):

message.send_body(io, version)

self._check_calls(io, [

(b'\x00\x00\x00\x01',),

(b'a',),

(b'\x00\x00\x00\x01',),

(b'\x00\x02',),

(b'ks',),

])

else:

with self.assertRaises(UnsupportedOperation):

message.send_body(io, version)

io.reset_mock()

def test_keyspace_flag_raises_before_v5(self):

keyspace_message = QueryMessage('a', consistency_level=3, keyspace='ks')

io = Mock(name='io')

with self.assertRaisesRegexp(UnsupportedOperation, 'Keyspaces.*set'):

keyspace_message.send_body(io, protocol_version=4)

io.assert_not_called()

def test_keyspace_written_with_length(self):

io = Mock(name='io')

base_expected = [

(b'\x00\x00\x00\x01',),

(b'a',),

(b'\x00\x03',),

(b'\x00\x00\x00\x80',), # options w/ keyspace flag

]

QueryMessage('a', consistency_level=3, keyspace='ks').send_body(

io, protocol_version=5

)

self._check_calls(io, base_expected + [

(b'\x00\x02',), # length of keyspace string

(b'ks',),

])

io.reset_mock()

QueryMessage('a', consistency_level=3, keyspace='keyspace').send_body(

io, protocol_version=5

)

self._check_calls(io, base_expected + [

(b'\x00\x08',), # length of keyspace string

(b'keyspace',),

])

def test_batch_message_with_keyspace(self):

self.maxDiff = None

io = Mock(name='io')

batch = BatchMessage(

batch_type=BatchType.LOGGED,

queries=((False, 'stmt a', ('param a',)),

(False, 'stmt b', ('param b',)),

(False, 'stmt c', ('param c',))

),

consistency_level=3,

keyspace='ks'

)

batch.send_body(io, protocol_version=5)

self._check_calls(io,

((b'\x00',), (b'\x00\x03',), (b'\x00',),

(b'\x00\x00\x00\x06',), (b'stmt a',),

(b'\x00\x01',), (b'\x00\x00\x00\x07',), ('param a',),

(b'\x00',), (b'\x00\x00\x00\x06',), (b'stmt b',),

(b'\x00\x01',), (b'\x00\x00\x00\x07',), ('param b',),

(b'\x00',), (b'\x00\x00\x00\x06',), (b'stmt c',),

(b'\x00\x01',), (b'\x00\x00\x00\x07',), ('param c',),

(b'\x00\x03',),

(b'\x00\x00\x00\x80',), (b'\x00\x02',), (b'ks',))

)