yardstick/tests/unit/benchmark/scenarios/compute/test_cachestat.py

   1 ##############################################################################
   2 # Copyright (c) 2016 Huawei Technologies Co.,Ltd and others.
   3 #
   4 # All rights reserved. This program and the accompanying materials
   5 # are made available under the terms of the Apache License, Version 2.0
   6 # which accompanies this distribution, and is available at
   7 # http://www.apache.org/licenses/LICENSE-2.0
   8 ##############################################################################
   9
  10 # Unittest for yardstick.benchmark.scenarios.compute.cachestat.CACHEstat
  11
  12 from __future__ import absolute_import
  13 import mock
  14 import unittest
  15 import os
  16
  17 from yardstick.benchmark.scenarios.compute import cachestat
  18
  19
  20 @mock.patch('yardstick.benchmark.scenarios.compute.cachestat.ssh')
  21 class CACHEstatTestCase(unittest.TestCase):
  22
  23     def setUp(self):
  24         self.ctx = {
  25             'host': {
  26                 'ip': '172.16.0.137',
  27                 'user': 'root',
  28                 'key_filename': "mykey.key"
  29             }
  30         }
  31
  32         self.result = {}
  33
  34     def test_cachestat_successful_setup(self, mock_ssh):
  35         c = cachestat.CACHEstat({}, self.ctx)
  36         mock_ssh.SSH.from_node().execute.return_value = (0, '', '')
  37
  38         c.setup()
  39         self.assertIsNotNone(c.client)
  40         self.assertTrue(c.setup_done)
  41
  42     def test_execute_command_success(self, mock_ssh):
  43         c = cachestat.CACHEstat({}, self.ctx)
  44         mock_ssh.SSH.from_node().execute.return_value = (0, '', '')
  45         c.setup()
  46
  47         expected_result = 'abcdefg'
  48         mock_ssh.SSH.from_node().execute.return_value = (0, expected_result, '')
  49         result = c._execute_command("foo")
  50         self.assertEqual(result, expected_result)
  51
  52     def test_execute_command_failed(self, mock_ssh):
  53         c = cachestat.CACHEstat({}, self.ctx)
  54         mock_ssh.SSH.from_node().execute.return_value = (0, '', '')
  55         c.setup()
  56
  57         mock_ssh.SSH.from_node().execute.return_value = (127, '', 'Failed executing \
  58             command')
  59         self.assertRaises(RuntimeError, c._execute_command,
  60                           "cat /proc/meminfo")
  61
  62     def test_get_cache_usage_successful(self, mock_ssh):
  63         options = {
  64             "interval": 1,
  65         }
  66         args = {"options": options}
  67         c = cachestat.CACHEstat(args, self.ctx)
  68         mock_ssh.SSH.from_node().execute.return_value = (0, '', '')
  69         c.setup()
  70
  71         output = self._read_file("cachestat_sample_output.txt")
  72         mock_ssh.SSH.from_node().execute.return_value = (0, output, '')
  73         result = c._get_cache_usage()
  74         expected_result = {"cachestat": {"cache0": {"HITS": "6462",
  75                                                     "DIRTIES": "29",
  76                                                     "RATIO": "100.0%",
  77                                                     "MISSES": "0",
  78                                                     "BUFFERS_MB": "1157",
  79                                                     "CACHE_MB": "66782"}},
  80                            "average": {"HITS": 6462, "DIRTIES": 29,
  81                                        "RATIO": "100.0%",
  82                                        "MISSES": 0, "BUFFERS_MB": 1157,
  83                                        "CACHE_MB": 66782},
  84                            "max": {"HITS": 6462,
  85                                    "DIRTIES": 29, "RATIO": 100.0, "MISSES": 0,
  86                                    "BUFFERS_MB": 1157, "CACHE_MB": 66782}}
  87
  88         self.assertEqual(result, expected_result)
  89
  90     def _read_file(self, filename):
  91         curr_path = os.path.dirname(os.path.abspath(__file__))
  92         output = os.path.join(curr_path, filename)
  93         with open(output) as f:
  94             sample_output = f.read()
  95         return sample_output