| #!/usr/bin/env python |
| # |
| # Copyright 2016 - The Android Open Source Project |
| # |
| # 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. |
| |
| """Tests for acloud.internal.lib.utils.""" |
| |
| import getpass |
| import os |
| import subprocess |
| import time |
| |
| import mock |
| |
| import unittest |
| from acloud.internal.lib import driver_test_lib |
| from acloud.internal.lib import utils |
| |
| |
| class UtilsTest(driver_test_lib.BaseDriverTest): |
| |
| def testCreateSshKeyPair_KeyAlreadyExists(self): |
| """Test when the key pair already exists.""" |
| public_key = "/fake/public_key" |
| private_key = "/fake/private_key" |
| self.Patch(os.path, "exists", side_effect=lambda path: path == public_key) |
| self.Patch(subprocess, "check_call") |
| utils.CreateSshKeyPairIfNotExist(private_key, public_key) |
| self.assertEqual(subprocess.check_call.call_count, 0) |
| |
| def testCreateSshKeyPair_KeyAreCreated(self): |
| """Test when the key pair created.""" |
| public_key = "/fake/public_key" |
| private_key = "/fake/private_key" |
| self.Patch(os.path, "exists", return_value=False) |
| self.Patch(subprocess, "check_call") |
| self.Patch(os, "rename") |
| utils.CreateSshKeyPairIfNotExist(private_key, public_key) |
| self.assertEqual(subprocess.check_call.call_count, 1) |
| subprocess.check_call.assert_called_with( |
| utils.SSH_KEYGEN_CMD + ["-C", getpass.getuser(), "-f", private_key], |
| stdout=mock.ANY, stderr=mock.ANY) |
| |
| def testRetryOnException(self): |
| def _IsValueError(exc): |
| return isinstance(exc, ValueError) |
| num_retry = 5 |
| |
| @utils.RetryOnException(_IsValueError, num_retry) |
| def _RaiseAndRetry(sentinel): |
| sentinel.alert() |
| raise ValueError("Fake error.") |
| |
| sentinel = mock.MagicMock() |
| self.assertRaises(ValueError, _RaiseAndRetry, sentinel) |
| self.assertEqual(1 + num_retry, sentinel.alert.call_count) |
| |
| def testRetryExceptionType(self): |
| """Test RetryExceptionType function.""" |
| def _RaiseAndRetry(sentinel): |
| sentinel.alert() |
| raise ValueError("Fake error.") |
| |
| num_retry = 5 |
| sentinel = mock.MagicMock() |
| self.assertRaises(ValueError, utils.RetryExceptionType, |
| (KeyError, ValueError), num_retry, _RaiseAndRetry, |
| sentinel=sentinel) |
| self.assertEqual(1 + num_retry, sentinel.alert.call_count) |
| |
| def testRetry(self): |
| """Test Retry.""" |
| self.Patch(time, "sleep") |
| def _RaiseAndRetry(sentinel): |
| sentinel.alert() |
| raise ValueError("Fake error.") |
| |
| num_retry = 5 |
| sentinel = mock.MagicMock() |
| self.assertRaises(ValueError, utils.RetryExceptionType, |
| (ValueError, KeyError), num_retry, _RaiseAndRetry, |
| sleep_multiplier=1, |
| retry_backoff_factor=2, |
| sentinel=sentinel) |
| |
| self.assertEqual(1 + num_retry, sentinel.alert.call_count) |
| time.sleep.assert_has_calls( |
| [mock.call(1), mock.call(2), mock.call(4), mock.call(8), mock.call(16)]) |
| |
| |
| if __name__ == "__main__": |
| unittest.main() |