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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 import ConsistencyLevel
from cassandra.query import SimpleStatement
from packaging.version import Version
from tests.integration import use_singledc, PROTOCOL_VERSION, \
remove_cluster, greaterthanorequalcass40, notdse, \
CASSANDRA_VERSION, DSE_VERSION, TestCluster, DEFAULT_SINGLE_INTERFACE_PORT
def setup_module():
if not DSE_VERSION and CASSANDRA_VERSION >= Version('4-a'):
remove_cluster()
use_singledc(use_single_interface=True)
def teardown_module():
remove_cluster()
@notdse
@greaterthanorequalcass40
class SingleInterfaceTest(unittest.TestCase):
def setUp(self):
self.cluster = TestCluster(port=DEFAULT_SINGLE_INTERFACE_PORT)
self.session = self.cluster.connect()
def tearDown(self):
if self.cluster is not None:
self.cluster.shutdown()
def test_single_interface(self):
"""
Test that we can connect to a multiple hosts bound to a single interface.
"""
hosts = self.cluster.metadata._hosts
broadcast_rpc_ports = []
broadcast_ports = []
self.assertEqual(len(hosts), 3)
for endpoint, host in hosts.items():
self.assertEqual(endpoint.address, host.broadcast_rpc_address)
self.assertEqual(endpoint.port, host.broadcast_rpc_port)
if host.broadcast_rpc_port in broadcast_rpc_ports:
self.fail("Duplicate broadcast_rpc_port")
broadcast_rpc_ports.append(host.broadcast_rpc_port)
if host.broadcast_port in broadcast_ports:
self.fail("Duplicate broadcast_port")
broadcast_ports.append(host.broadcast_port)
for _ in range(1, 100):
self.session.execute(SimpleStatement("select * from system_distributed.view_build_status",
consistency_level=ConsistencyLevel.ALL))
for pool in self.session.get_pools():
self.assertEqual(1, pool.get_state()['open_count'])
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