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test_docker_swarm.py
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test_docker_swarm.py
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#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you 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
import mock
import requests
from docker import APIClient
from airflow.exceptions import AirflowException
from airflow.providers.docker.operators.docker_swarm import DockerSwarmOperator
class TestDockerSwarmOperator(unittest.TestCase):
@mock.patch('airflow.providers.docker.operators.docker.APIClient')
@mock.patch('airflow.providers.docker.operators.docker_swarm.types')
def test_execute(self, types_mock, client_class_mock):
mock_obj = mock.Mock()
def _client_tasks_side_effect():
for _ in range(2):
yield [{'Status': {'State': 'pending'}}]
while True:
yield [{'Status': {'State': 'complete'}}]
def _client_service_logs_effect():
yield b'Testing is awesome.'
client_mock = mock.Mock(spec=APIClient)
client_mock.create_service.return_value = {'ID': 'some_id'}
client_mock.service_logs.return_value = _client_service_logs_effect()
client_mock.images.return_value = []
client_mock.pull.return_value = [b'{"status":"pull log"}']
client_mock.tasks.side_effect = _client_tasks_side_effect()
types_mock.TaskTemplate.return_value = mock_obj
types_mock.ContainerSpec.return_value = mock_obj
types_mock.RestartPolicy.return_value = mock_obj
types_mock.Resources.return_value = mock_obj
client_class_mock.return_value = client_mock
operator = DockerSwarmOperator(
api_version='1.19', command='env', environment={'UNIT': 'TEST'}, image='ubuntu:latest',
mem_limit='128m', user='unittest', task_id='unittest', auto_remove=True, tty=True,
)
operator.execute(None)
types_mock.TaskTemplate.assert_called_once_with(
container_spec=mock_obj, restart_policy=mock_obj, resources=mock_obj
)
types_mock.ContainerSpec.assert_called_once_with(
image='ubuntu:latest', command='env', user='unittest', tty=True,
env={'UNIT': 'TEST', 'AIRFLOW_TMP_DIR': '/tmp/airflow'}
)
types_mock.RestartPolicy.assert_called_once_with(condition='none')
types_mock.Resources.assert_called_once_with(mem_limit='128m')
client_class_mock.assert_called_once_with(
base_url='unix://var/run/docker.sock', tls=None, version='1.19'
)
client_mock.service_logs.assert_called_once_with(
'some_id', follow=True, stdout=True, stderr=True, is_tty=True
)
csargs, cskwargs = client_mock.create_service.call_args_list[0]
self.assertEqual(
len(csargs), 1, 'create_service called with different number of arguments than expected'
)
self.assertEqual(csargs, (mock_obj, ))
self.assertEqual(cskwargs['labels'], {'name': 'airflow__adhoc_airflow__unittest'})
self.assertTrue(cskwargs['name'].startswith('airflow-'))
self.assertEqual(client_mock.tasks.call_count, 5)
client_mock.remove_service.assert_called_once_with('some_id')
@mock.patch('airflow.providers.docker.operators.docker.APIClient')
@mock.patch('airflow.providers.docker.operators.docker_swarm.types')
def test_no_auto_remove(self, types_mock, client_class_mock):
mock_obj = mock.Mock()
client_mock = mock.Mock(spec=APIClient)
client_mock.create_service.return_value = {'ID': 'some_id'}
client_mock.images.return_value = []
client_mock.pull.return_value = [b'{"status":"pull log"}']
client_mock.tasks.return_value = [{'Status': {'State': 'complete'}}]
types_mock.TaskTemplate.return_value = mock_obj
types_mock.ContainerSpec.return_value = mock_obj
types_mock.RestartPolicy.return_value = mock_obj
types_mock.Resources.return_value = mock_obj
client_class_mock.return_value = client_mock
operator = DockerSwarmOperator(image='', auto_remove=False, task_id='unittest', enable_logging=False)
operator.execute(None)
self.assertEqual(
client_mock.remove_service.call_count, 0,
'Docker service being removed even when `auto_remove` set to `False`'
)
@mock.patch('airflow.providers.docker.operators.docker.APIClient')
@mock.patch('airflow.providers.docker.operators.docker_swarm.types')
def test_failed_service_raises_error(self, types_mock, client_class_mock):
mock_obj = mock.Mock()
client_mock = mock.Mock(spec=APIClient)
client_mock.create_service.return_value = {'ID': 'some_id'}
client_mock.images.return_value = []
client_mock.pull.return_value = [b'{"status":"pull log"}']
client_mock.tasks.return_value = [{'Status': {'State': 'failed'}}]
types_mock.TaskTemplate.return_value = mock_obj
types_mock.ContainerSpec.return_value = mock_obj
types_mock.RestartPolicy.return_value = mock_obj
types_mock.Resources.return_value = mock_obj
client_class_mock.return_value = client_mock
operator = DockerSwarmOperator(image='', auto_remove=False, task_id='unittest', enable_logging=False)
msg = "Service failed: {'ID': 'some_id'}"
with self.assertRaises(AirflowException) as error:
operator.execute(None)
self.assertEqual(str(error.exception), msg)
@mock.patch('airflow.providers.docker.operators.docker.APIClient')
@mock.patch('airflow.providers.docker.operators.docker_swarm.types')
def test_logging_with_requests_timeout(self, types_mock, client_class_mock):
mock_obj = mock.Mock()
def _client_tasks_side_effect():
for _ in range(2):
yield [{'Status': {'State': 'pending'}}]
while True:
yield [{'Status': {'State': 'complete'}}]
def _client_service_logs_effect():
yield b'Testing is awesome.'
raise requests.exceptions.ConnectionError('')
client_mock = mock.Mock(spec=APIClient)
client_mock.create_service.return_value = {'ID': 'some_id'}
client_mock.service_logs.return_value = _client_service_logs_effect()
client_mock.images.return_value = []
client_mock.pull.return_value = [b'{"status":"pull log"}']
client_mock.tasks.side_effect = _client_tasks_side_effect()
types_mock.TaskTemplate.return_value = mock_obj
types_mock.ContainerSpec.return_value = mock_obj
types_mock.RestartPolicy.return_value = mock_obj
types_mock.Resources.return_value = mock_obj
client_class_mock.return_value = client_mock
operator = DockerSwarmOperator(
api_version='1.19', command='env', environment={'UNIT': 'TEST'}, image='ubuntu:latest',
mem_limit='128m', user='unittest', task_id='unittest', auto_remove=True, tty=True,
enable_logging=True
)
operator.execute(None)
client_mock.service_logs.assert_called_once_with(
'some_id', follow=True, stdout=True, stderr=True, is_tty=True
)
def test_on_kill(self):
client_mock = mock.Mock(spec=APIClient)
operator = DockerSwarmOperator(image='', auto_remove=False, task_id='unittest', enable_logging=False)
operator.cli = client_mock
operator.service = {'ID': 'some_id'}
operator.on_kill()
client_mock.remove_service.assert_called_once_with('some_id')