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#!/usr/bin/env python
##############################################################################
# Copyright (c) 2016 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.compute.cachestat.CACHEstat
from __future__ import absolute_import
import mock
import unittest
import os
from yardstick.benchmark.scenarios.compute import cachestat
@mock.patch('yardstick.benchmark.scenarios.compute.cachestat.ssh')
class CACHEstatTestCase(unittest.TestCase):
def setUp(self):
self.ctx = {
'host': {
'ip': '172.16.0.137',
'user': 'root',
'key_filename': "mykey.key"
}
}
self.result = {}
def test_cachestat_successful_setup(self, mock_ssh):
c = cachestat.CACHEstat({}, self.ctx)
mock_ssh.SSH().execute.return_value = (0, '', '')
c.setup()
self.assertIsNotNone(c.client)
self.assertTrue(c.setup_done)
def test_execute_command_success(self, mock_ssh):
c = cachestat.CACHEstat({}, self.ctx)
mock_ssh.SSH().execute.return_value = (0, '', '')
c.setup()
expected_result = 'abcdefg'
mock_ssh.SSH().execute.return_value = (0, expected_result, '')
result = c._execute_command("foo")
self.assertEqual(result, expected_result)
def test_execute_command_failed(self, mock_ssh):
c = cachestat.CACHEstat({}, self.ctx)
mock_ssh.SSH().execute.return_value = (0, '', '')
c.setup()
mock_ssh.SSH().execute.return_value = (127, '', 'Failed executing \
command')
self.assertRaises(RuntimeError, c._execute_command,
"cat /proc/meminfo")
def test_get_cache_usage_successful(self, mock_ssh):
options = {
"interval": 1,
}
args = {"options": options}
c = cachestat.CACHEstat(args, self.ctx)
mock_ssh.SSH().execute.return_value = (0, '', '')
c.setup()
output = self._read_file("cachestat_sample_output.txt")
mock_ssh.SSH().execute.return_value = (0, output, '')
result = c._get_cache_usage()
expected_result = {"cachestat": {"cache0": {"HITS": "6462",
"DIRTIES": "29",
"RATIO": "100.0%",
"MISSES": "0",
"BUFFERS_MB": "1157",
"CACHE_MB": "66782"}},
"average": {"HITS": 6462, "DIRTIES": 29,
"RATIO": "100.0%",
"MISSES": 0, "BUFFERS_MB": 1157,
"CACHE_MB": 66782},
"max": {"HITS": 6462,
"DIRTIES": 29, "RATIO": 100.0, "MISSES": 0,
"BUFFERS_MB": 1157, "CACHE_MB": 66782}}
self.assertEqual(result, expected_result)
def _read_file(self, filename):
curr_path = os.path.dirname(os.path.abspath(__file__))
output = os.path.join(curr_path, filename)
with open(output) as f:
sample_output = f.read()
return sample_output
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