def test_optimize_readahead_should_not_apply(mocker):
mock_subprocess_call = _mock_subprocess_call(mocker)
mock_config = _get_new_mock_config(True)
_mock_should_revise_readahead(mocker, False)
mount_efs.optimize_readahead_window(MOUNT_POINT, DEFAULT_OPTIONS,
mock_config)
utils.assert_not_called(mock_subprocess_call)
def test_optimize_readahead_should_apply_failed_with_exception(mocker):
mock_subprocess_call = _mock_subprocess_call(mocker, True)
mock_config = _get_new_mock_config(True)
mock_log_warning = mocker.patch("logging.warning")
_mock_should_revise_readahead(mocker, True)
mocker.patch(
"subprocess.check_output",
return_value='"' + str(EXPECTED_MOUNT_POINT_DEV_NUMBER) + '"\n',
)
mount_efs.optimize_readahead_window(MOUNT_POINT, DEFAULT_OPTIONS,
mock_config)
utils.assert_called_once(mock_subprocess_call)
args, _ = mock_subprocess_call.call_args
readahead_kb_value = int(mount_efs.DEFAULT_NFS_MAX_READAHEAD_MULTIPLIER *
int(DEFAULT_OPTIONS["rsize"]) / 1024)
expected_subprocess_call = EXPECTED_CALL_FORMAT % (
readahead_kb_value,
EXPECTED_READAHEAD_KB_PATH,
)
assert expected_subprocess_call == args[0]
assert "failed to modify read_ahead_kb" in mock_log_warning.call_args[0][0]
def test_optimize_readahead_should_apply(mocker):
mock_subprocess_call = _mock_subprocess_call(mocker)
mock_config = _get_new_mock_config(True)
_mock_should_revise_readahead(mocker, True)
mocker.patch('subprocess.check_output',
return_value='"' + str(EXPECTED_MOUNT_POINT_DEV_NUMBER) +
'"\n')
mount_efs.optimize_readahead_window(MOUNT_POINT, DEFAULT_OPTIONS,
mock_config)
utils.assert_called_once(mock_subprocess_call)
args, _ = mock_subprocess_call.call_args
readahead_kb_value = int(mount_efs.DEFAULT_NFS_MAX_READAHEAD_MULTIPLIER *
int(DEFAULT_OPTIONS['rsize']) / 1024)
expected_subprocess_call = EXPECTED_CALL_FORMAT % (
readahead_kb_value, EXPECTED_READAHEAD_KB_PATH)
assert expected_subprocess_call == args[0]