def test_lun_snap_create_existing(self):
lun = UnityLun(_id='sv_9', cli=t_rest())
assert_that(lambda: lun.create_snap(name='lun_snap_1'),
raises(UnitySnapNameInUseError))
def test_lun_snap_create(self):
lun = UnityLun(_id='sv_8', cli=t_rest())
snap = lun.create_snap(name='lun_snap_1')
assert_that(snap, instance_of(UnitySnap))
