#!/usr/bin/env python

##############################################################################
# Copyright (c) 2015 Huawei Technologies Co.,Ltd and others.
#
# 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.monitor.monitor_command

import mock
import unittest

from yardstick.benchmark.scenarios.availability.monitor import monitor_command

@mock.patch('yardstick.benchmark.scenarios.availability.monitor.monitor_command.subprocess')
class MonitorOpenstackCmdTestCase(unittest.TestCase):

    def test__fun_execute_shell_command_successful(self, mock_subprocess):
        cmd = "env"
        mock_subprocess.check_output.return_value = (0, 'unittest')
        exitcode, output = monitor_command._execute_shell_command(cmd)
        self.assertEqual(exitcode, 0)

    def test__fun_execute_shell_command_fail_cmd_exception(self, mock_subprocess):
        cmd = "env"
        mock_subprocess.check_output.side_effect = RuntimeError
        exitcode, output = monitor_command._execute_shell_command(cmd)
        self.assertEqual(exitcode, -1)

    def test__monitor_command_monitor_func_successful(self, mock_subprocess):
        config = {
            'monitor_type': 'openstack-api',
            'command_name': 'nova image-list',
            'monitor_time': 1,
            'sla': {'max_outage_time': 5}
        }

        instance = monitor_command.MonitorOpenstackCmd(config, None)

        mock_subprocess.check_output.return_value = (0, 'unittest')
        ret = instance.monitor_func()
        self.assertEqual(ret, True)
        instance._result = {"outage_time": 0}
        instance.verify_SLA()

    def test__monitor_command_monitor_func_failure(self, mock_subprocess):
        mock_subprocess.check_output.return_value = (1, 'unittest')
        config = {
            'monitor_type': 'openstack-api',
            'command_name': 'nova image-list',
            'monitor_time': 1,
            'sla': {'max_outage_time': 5}
        }
        instance = monitor_command.MonitorOpenstackCmd(config, None)

        mock_subprocess.check_output.side_effect = RuntimeError
        ret = instance.monitor_func()
        self.assertEqual(ret, False)
        instance._result = {"outage_time": 10}
        instance.verify_SLA()