@Test
public void testDeviceClassIndex() throws Exception {

	EnumSet<IDeviceService.DeviceField> indexFields =
			EnumSet.noneOf(IDeviceService.DeviceField.class);
	indexFields.add(IDeviceService.DeviceField.IPV4);
	indexFields.add(IDeviceService.DeviceField.VLAN);
	deviceManager.addIndex(true, indexFields);
	ITopologyService mockTopology = createMock(ITopologyService.class);
	deviceManager.topology = mockTopology;
	expect(mockTopology.isAttachmentPointPort(DatapathId.of(anyLong()),
			OFPort.of(anyShort()))).
			andReturn(true).anyTimes();
	expect(mockTopology.getL2DomainId(DatapathId.of(EasyMock.anyLong()))).andReturn(DatapathId.of(1L)).anyTimes();
	replay(mockTopology);
	doTestDeviceClassQuery();
}