def METHOD_NAME(self):
    """Verify that it is possible to get lvm device subsystem from its name"""
    self.addCleanup(self._destroy_lvm)
    run("vgcreate libbd_dm_tests %s >/dev/null 2>&1" % self.loop_dev)
    run("lvcreate -n subsystem_lvm -L50M libbd_dm_tests >/dev/null 2>&1")
    subsystem = BlockDev.dm_get_subsystem_from_name("libbd_dm_tests-subsystem_lvm")
    self.assertEqual(subsystem, "LVM")