154 строки
5.3 KiB
Python
154 строки
5.3 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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#
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import os
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import sys
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import tempfile
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import unittest
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from unittest.mock import MagicMock, call
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SETTINGS_FILE_POLICY = """
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def policy(task_instance):
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task_instance.run_as_user = "myself"
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"""
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SETTINGS_FILE_POLICY_WITH_DUNDER_ALL = """
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__all__ = ["policy"]
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def policy(task_instance):
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task_instance.run_as_user = "myself"
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def not_policy():
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print("This shouldn't be imported")
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"""
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SETTINGS_FILE_POD_MUTATION_HOOK = """
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def pod_mutation_hook(pod):
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pod.namespace = 'airflow-tests'
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"""
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class SettingsContext:
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def __init__(self, content: str, module_name: str):
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self.content = content
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self.settings_root = tempfile.mkdtemp()
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filename = "{}.py".format(module_name)
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self.settings_file = os.path.join(self.settings_root, filename)
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def __enter__(self):
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with open(self.settings_file, 'w') as handle:
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handle.writelines(self.content)
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sys.path.append(self.settings_root)
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return self.settings_file
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def __exit__(self, *exc_info):
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sys.path.remove(self.settings_root)
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class TestLocalSettings(unittest.TestCase):
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# Make sure that the configure_logging is not cached
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def setUp(self):
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self.old_modules = dict(sys.modules)
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def tearDown(self):
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# Remove any new modules imported during the test run. This lets us
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# import the same source files for more than one test.
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for mod in [m for m in sys.modules if m not in self.old_modules]:
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del sys.modules[mod]
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@unittest.mock.patch("airflow.settings.import_local_settings")
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@unittest.mock.patch("airflow.settings.prepare_syspath")
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def test_initialize_order(self, prepare_syspath, import_local_settings):
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"""
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Tests that import_local_settings is called after prepare_classpath
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"""
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mock = unittest.mock.Mock()
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mock.attach_mock(prepare_syspath, "prepare_syspath")
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mock.attach_mock(import_local_settings, "import_local_settings")
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import airflow.settings
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airflow.settings.initialize()
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mock.assert_has_calls([call.prepare_syspath(), call.import_local_settings()])
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def test_import_with_dunder_all_not_specified(self):
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"""
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Tests that if __all__ is specified in airflow_local_settings,
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only module attributes specified within are imported.
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"""
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with SettingsContext(SETTINGS_FILE_POLICY_WITH_DUNDER_ALL, "airflow_local_settings"):
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from airflow import settings
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settings.import_local_settings() # pylint: ignore
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with self.assertRaises(AttributeError):
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settings.not_policy()
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def test_import_with_dunder_all(self):
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"""
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Tests that if __all__ is specified in airflow_local_settings,
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only module attributes specified within are imported.
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"""
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with SettingsContext(SETTINGS_FILE_POLICY_WITH_DUNDER_ALL, "airflow_local_settings"):
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from airflow import settings
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settings.import_local_settings() # pylint: ignore
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task_instance = MagicMock()
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settings.policy(task_instance)
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assert task_instance.run_as_user == "myself"
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@unittest.mock.patch("airflow.settings.log.debug")
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def test_import_local_settings_without_syspath(self, log_mock):
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"""
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Tests that an ImportError is raised in import_local_settings
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if there is no airflow_local_settings module on the syspath.
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"""
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from airflow import settings
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settings.import_local_settings()
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log_mock.assert_called_once_with("Failed to import airflow_local_settings.", exc_info=True)
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def test_policy_function(self):
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"""
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Tests that task instances are mutated by the policy
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function in airflow_local_settings.
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"""
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with SettingsContext(SETTINGS_FILE_POLICY, "airflow_local_settings"):
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from airflow import settings
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settings.import_local_settings() # pylint: ignore
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task_instance = MagicMock()
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settings.policy(task_instance)
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assert task_instance.run_as_user == "myself"
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def test_pod_mutation_hook(self):
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"""
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Tests that pods are mutated by the pod_mutation_hook
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function in airflow_local_settings.
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"""
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with SettingsContext(SETTINGS_FILE_POD_MUTATION_HOOK, "airflow_local_settings"):
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from airflow import settings
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settings.import_local_settings() # pylint: ignore
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pod = MagicMock()
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settings.pod_mutation_hook(pod)
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assert pod.namespace == 'airflow-tests'
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