| #!/usr/bin/env python |
| # |
| # Copyright 2017 - The Android Open Source Project |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| import unittest |
| |
| import mock |
| from metrics import read_metric |
| from tests import fake |
| |
| |
| class ReadMetricTest(unittest.TestCase): |
| """Class for testing ReadMetric.""" |
| |
| @mock.patch('os.getuid') |
| def test_return_total_used_avail_percent_with_permiss(self, getuid_func): |
| getuid_func.return_value = 0 |
| # Create sample stdout string ShellCommand.run() would return |
| stdout_string = ('/dev/sda:\n' |
| ' Timing cached reads: ' |
| '18192 MB in 2.00 seconds = 9117.49 MB/sec\n' |
| ' Timing buffered disk reads: ' |
| '414 MB in 3.07 seconds = 134.80 MB/sec\n' |
| '\n/dev/sda:\n' |
| ' Timing cached reads: ' |
| '18100 MB in 2.00 seconds = 9071.00 MB/sec\n' |
| ' Timing buffered disk reads: ' |
| '380 MB in 3.01 seconds = 126.35 MB/sec\n' |
| '\n/dev/sda:\n' |
| ' Timing cached reads: ' |
| '18092 MB in 2.00 seconds = 9067.15 MB/sec\n' |
| ' Timing buffered disk reads: ' |
| '416 MB in 3.01 seconds = 138.39 MB/sec') |
| FAKE_RESULT = fake.FakeResult(stdout=stdout_string) |
| fake_shell = fake.MockShellCommand(fake_result=FAKE_RESULT) |
| metric_obj = read_metric.ReadMetric(shell=fake_shell) |
| |
| exp_res = { |
| read_metric.ReadMetric.CACHED_READ_RATE: |
| 27255.64 / read_metric.ReadMetric.NUM_RUNS, |
| read_metric.ReadMetric.BUFFERED_READ_RATE: |
| 399.54 / read_metric.ReadMetric.NUM_RUNS |
| } |
| result = metric_obj.gather_metric() |
| self.assertAlmostEqual( |
| exp_res[read_metric.ReadMetric.CACHED_READ_RATE], |
| result[metric_obj.CACHED_READ_RATE]) |
| self.assertAlmostEqual( |
| exp_res[read_metric.ReadMetric.BUFFERED_READ_RATE], |
| result[metric_obj.BUFFERED_READ_RATE]) |
| |
| @mock.patch('os.getuid') |
| def test_return_total_used_avail_percent_with_no_permiss( |
| self, getuid_func): |
| getuid_func.return_value = 1 |
| exp_res = { |
| read_metric.ReadMetric.CACHED_READ_RATE: None, |
| read_metric.ReadMetric.BUFFERED_READ_RATE: None |
| } |
| result = read_metric.ReadMetric().gather_metric() |
| self.assertEquals(result, exp_res) |
| |
| |
| if __name__ == '__main__': |
| unittest.main() |