@Override
    public OpenstackNode node(String hostname) {
        return osNodeStore.node(hostname);
    }
@Test
    public void testGetNodeByHostname() {
        assertTrue(ERR_NOT_FOUND, Objects.equals(
                target.node(COMPUTE_2_HOSTNAME), COMPUTE_2));
        assertTrue(ERR_NOT_FOUND, Objects.equals(
                target.node(COMPUTE_3_HOSTNAME), COMPUTE_3));
        assertTrue(ERR_NOT_FOUND, Objects.equals(
                target.node(GATEWAY_1_HOSTNAME), GATEWAY_1));
    }