##############################################################################
# Copyright (c) 2016 Kanglin Yin and others
# 14_ykl@tongji.edu.cn
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################

# Unittest for yardstick.benchmark.scenarios.availability.utils

import mock
import unittest

from yardstick.benchmark.scenarios.availability import util


class ExecuteShellTestCase(unittest.TestCase):

    def setUp(self):
        self.param_config = {'serviceName': '@serviceName', 'value': 1}
        self.intermediate_variables = {'@serviceName': 'nova-api'}
        self.std_output = '| id       | 1                     |'
        self.cmd_config = {'cmd': 'ls', 'param': '-a'}

        self._mock_subprocess = mock.patch.object(util, 'subprocess')
        self.mock_subprocess = self._mock_subprocess.start()
        self.addCleanup(self._stop_mock)

    def _stop_mock(self):
        self._mock_subprocess.stop()

    def test_util_build_command_shell(self):
        result = util.build_shell_command(self.param_config, True,
                                          self.intermediate_variables)
        self.assertIn("nova-api", result)

    def test_read_stdout_item(self):
        result = util.read_stdout_item(self.std_output, 'id')
        self.assertEqual('1', result)

    def test_buildshellparams(self):
        result = util.buildshellparams(self.cmd_config, True)
        self.assertEqual('/bin/bash -s {0} {1}', result)

    def test__fun_execute_shell_command_successful(self):
        cmd = "env"
        self.mock_subprocess.check_output.return_value = (0, 'unittest')
        exitcode, _ = util.execute_shell_command(cmd)
        self.assertEqual(exitcode, 0)

    def test__fun_execute_shell_command_fail_cmd_exception(self):
        cmd = "env"
        self.mock_subprocess.check_output.side_effect = RuntimeError
        exitcode, _ = util.execute_shell_command(cmd)
        self.assertEqual(exitcode, -1)