@Override
    public Set<DeviceId> getDevices(PiPipeconfId pipeconfId) {
        return ImmutableSet.copyOf(pipeconfToDevices.get(pipeconfId));
    }
@Test
    public void getDevices() {
        clear();
        createOrUpdatePipeconfToDeviceBinding();
        assertEquals("Wrong set of DeviceIds", store.getDevices(PIPECONF_ID), ImmutableSet.of(DEVICE_ID));

    }