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

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