'Extend the list of properties to query for RAW Performance classes.'

def test_raw_perf_properties(self):

    wmi_sampler = WMISampler('Win32_PerfFormattedData_PerfOS_System', ['ProcessorQueueLength'])
    self.assertEquals(len(wmi_sampler.property_names), 1)
    wmi_sampler = WMISampler('Win32_PerfRawData_PerfOS_System', ['CounterRawCount', 'CounterCounter'])
    self.assertEquals(len(wmi_sampler.property_names), 4)
