| #!/usr/bin/env python |
| # -*- coding: utf-8 -*- |
| |
| ''' |
| 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 signal |
| import subprocess, time |
| from mock.mock import patch, MagicMock, PropertyMock, call |
| from agent import process_utils |
| |
| process_tree = {"111": "222\n 22", |
| "222": "333\n 33", |
| "22": "44\n 444",} |
| |
| |
| class TestProcessUtils(unittest.TestCase): |
| @patch("subprocess.Popen") |
| def test_kill(self, popen_mock): |
| process_mock = MagicMock() |
| process_mock.communicate.return_value = (None, None) |
| returncode_mock = PropertyMock() |
| returncode_mock.return_value = 0 |
| type(process_mock).returncode = returncode_mock |
| popen_mock.return_value = process_mock |
| process_utils.kill_pids(["12321113230", "2312415453"], signal.SIGTERM) |
| expected = [call(['kill', '-15', '12321113230', '2312415453'], stderr=-1, stdout=-1)] |
| self.assertEquals(popen_mock.call_args_list, expected) |
| |
| @patch("subprocess.Popen") |
| def test_get_children(self, popen_mock): |
| |
| process_mock = MagicMock() |
| process_mock.communicate.return_value = ("123 \n \n 321\n", None) |
| popen_mock.return_value = process_mock |
| returncode_mock = PropertyMock() |
| returncode_mock.return_value = 0 |
| type(process_mock).returncode = returncode_mock |
| result = process_utils.get_children("2312415453") |
| |
| self.assertEquals(result, ["123", "321"]) |
| |
| expected = [ |
| call(['ps', '-o', 'pid', '--no-headers', '--ppid', '2312415453'], stderr=subprocess.PIPE, stdout=subprocess.PIPE)] |
| self.assertEquals(popen_mock.call_args_list, expected) |
| |
| @patch("subprocess.Popen") |
| def test_get_flat_process_tree(self, popen_mock): |
| def side_effect(*args, **kwargs): |
| process_mock = MagicMock() |
| returncode_mock = PropertyMock() |
| returncode_mock.return_value = 0 |
| type(process_mock).returncode = returncode_mock |
| if args[0][5] in process_tree.keys(): |
| process_mock.communicate.return_value = (process_tree[args[0][5]], None) |
| else: |
| process_mock.communicate.return_value = ("", None) |
| return process_mock |
| |
| popen_mock.side_effect = side_effect |
| result = process_utils.get_flat_process_tree("111") |
| self.assertEquals(result, ['111', '222', '333', '33', '22', '44', '444']) |
| |
| expected = [call(['ps', '-o', 'pid', '--no-headers', '--ppid', '111'], stderr=-1, stdout=-1), |
| call(['ps', '-o', 'pid', '--no-headers', '--ppid', '222'], stderr=-1, stdout=-1), |
| call(['ps', '-o', 'pid', '--no-headers', '--ppid', '333'], stderr=-1, stdout=-1), |
| call(['ps', '-o', 'pid', '--no-headers', '--ppid', '33'], stderr=-1, stdout=-1), |
| call(['ps', '-o', 'pid', '--no-headers', '--ppid', '22'], stderr=-1, stdout=-1), |
| call(['ps', '-o', 'pid', '--no-headers', '--ppid', '44'], stderr=-1, stdout=-1), |
| call(['ps', '-o', 'pid', '--no-headers', '--ppid', '444'], stderr=-1, stdout=-1)] |
| self.assertEquals(popen_mock.call_args_list, expected) |
| |
| @patch("subprocess.Popen") |
| def test_get_command_by_pid(self, popen_mock): |
| |
| process_mock = MagicMock() |
| process_mock.communicate.return_value = ("yum something", None) |
| returncode_mock = PropertyMock() |
| returncode_mock.return_value = 0 |
| type(process_mock).returncode = returncode_mock |
| popen_mock.return_value = process_mock |
| |
| result = process_utils.get_command_by_pid("2312415453") |
| |
| self.assertEquals(result, "yum something") |
| |
| expected = [call(['ps', '-p', '2312415453', '-o', 'command', '--no-headers'], stderr=-1, stdout=-1)] |
| self.assertEquals(popen_mock.call_args_list, expected) |
| |
| @patch("subprocess.Popen") |
| def test_get_command_by_pid_not_exist(self, popen_mock): |
| |
| process_mock = MagicMock() |
| process_mock.communicate.return_value = ("", None) |
| returncode_mock = PropertyMock() |
| returncode_mock.return_value = 1 |
| type(process_mock).returncode = returncode_mock |
| popen_mock.return_value = process_mock |
| |
| result = process_utils.get_command_by_pid("2312415453") |
| |
| self.assertEquals(result, "NOT_FOUND[2312415453]") |
| |
| expected = [call(['ps', '-p', '2312415453', '-o', 'command', '--no-headers'], stderr=-1, stdout=-1)] |
| self.assertEquals(popen_mock.call_args_list, expected) |
| |
| @patch("subprocess.Popen") |
| def test_is_process_running(self, popen_mock): |
| |
| process_mock = MagicMock() |
| process_mock.communicate.return_value = ("2312415453", None) |
| returncode_mock = PropertyMock() |
| returncode_mock.return_value = 0 |
| type(process_mock).returncode = returncode_mock |
| popen_mock.return_value = process_mock |
| |
| result = process_utils.is_process_running("2312415453") |
| |
| self.assertEquals(result, True) |
| |
| expected = [call(['ps', '-p', '2312415453', '-o', 'pid', '--no-headers'], stderr=-1, stdout=-1)] |
| self.assertEquals(popen_mock.call_args_list, expected) |
| |
| @patch("subprocess.Popen") |
| def test_is_process_not_running(self, popen_mock): |
| |
| process_mock = MagicMock() |
| process_mock.communicate.return_value = ("", None) |
| returncode_mock = PropertyMock() |
| returncode_mock.return_value = 1 |
| type(process_mock).returncode = returncode_mock |
| popen_mock.return_value = process_mock |
| |
| result = process_utils.is_process_running("2312415453") |
| |
| self.assertEquals(result, False) |
| |
| expected = [call(['ps', '-p', '2312415453', '-o', 'pid', '--no-headers'], stderr=-1, stdout=-1)] |
| self.assertEquals(popen_mock.call_args_list, expected) |
| |
| @patch("subprocess.Popen") |
| def test_get_processes_running(self, popen_mock): |
| def side_effect(*args, **kwargs): |
| process_mock = MagicMock() |
| returncode_mock = PropertyMock() |
| if args[0][2] == "4321": |
| returncode_mock.return_value = 0 |
| process_mock.communicate.return_value = ("4321", None) |
| else: |
| returncode_mock.return_value = 1 |
| process_mock.communicate.return_value = (None, None) |
| type(process_mock).returncode = returncode_mock |
| return process_mock |
| |
| popen_mock.side_effect = side_effect |
| |
| result = process_utils.get_processes_running(["1234", "4321"]) |
| |
| self.assertEquals(result, ["4321"]) |
| |
| expected = [call(['ps', '-p', '1234', '-o', 'pid', '--no-headers'], stderr=-1, stdout=-1), |
| call(['ps', '-p', '4321', '-o', 'pid', '--no-headers'], stderr=-1, stdout=-1)] |
| self.assertEquals(popen_mock.call_args_list, expected) |
| |
| @patch("time.sleep") |
| @patch("subprocess.Popen") |
| def test_wait_for_process_death(self, popen_mock, sleep_mock): |
| |
| process_mock = MagicMock() |
| process_mock.communicate.side_effect = [("4321", None),("4321", None),(None, None)] |
| returncode_mock = PropertyMock() |
| returncode_mock.side_effect = [0, 0, 1] |
| type(process_mock).returncode = returncode_mock |
| popen_mock.return_value = process_mock |
| |
| process_utils.wait_for_process_death("4321") |
| |
| expected = [call(['ps', '-p', '4321', '-o', 'pid', '--no-headers'], stderr=-1, stdout=-1), |
| call(['ps', '-p', '4321', '-o', 'pid', '--no-headers'], stderr=-1, stdout=-1), |
| call(['ps', '-p', '4321', '-o', 'pid', '--no-headers'], stderr=-1, stdout=-1)] |
| self.assertEquals(popen_mock.call_args_list, expected) |
| expected = [call(0.1), call(0.1)] |
| self.assertEquals(sleep_mock.call_args_list, expected) |
| |
| @patch("time.sleep") |
| @patch("subprocess.Popen") |
| def test_wait_for_entire_process_tree_death(self, popen_mock, sleep_mock): |
| |
| process_mock = MagicMock() |
| process_mock.communicate.side_effect = [("1234", None), (None, None), ("4321", None), ("4321", None), (None, None)] |
| returncode_mock = PropertyMock() |
| returncode_mock.side_effect = [0, 1, 0, 0, 1] |
| type(process_mock).returncode = returncode_mock |
| popen_mock.return_value = process_mock |
| |
| process_utils.wait_for_entire_process_tree_death(["1234", "4321"]) |
| |
| expected = [call(['ps', '-p', '1234', '-o', 'pid', '--no-headers'], stderr=-1, stdout=-1), |
| call(['ps', '-p', '1234', '-o', 'pid', '--no-headers'], stderr=-1, stdout=-1), |
| call(['ps', '-p', '4321', '-o', 'pid', '--no-headers'], stderr=-1, stdout=-1), |
| call(['ps', '-p', '4321', '-o', 'pid', '--no-headers'], stderr=-1, stdout=-1), |
| call(['ps', '-p', '4321', '-o', 'pid', '--no-headers'], stderr=-1, stdout=-1)] |
| self.assertEquals(popen_mock.call_args_list, expected) |
| expected = [call(0.1), call(0.1), call(0.1)] |
| self.assertEquals(sleep_mock.call_args_list, expected) |
