'Print a warning on RAW Performance classes if the calculator is undefined.
Returns the original RAW value.'

def test_raw_properties_fallback(self):

    from checks.libs.wmi.sampler import WMISampler
    logger = Mock()
    wmi_raw_sampler = WMISampler(logger, 'Win32_PerfRawData_PerfOS_System', ['UnknownCounter', 'MissingProperty'])
    wmi_raw_sampler.sample()
    self.assertWMISampler(wmi_raw_sampler, [('UnknownCounter', 999), 'Timestamp_Sys100NS', 'Frequency_Sys100NS', 'Name'], count=1)
    self.assertTrue(logger.warning.called)
