@Override
    public Set<OpenstackNode> nodes() {
        return osNodeStore.nodes();
    }
@Test
    public void testGetAllNodes() {
        assertEquals(ERR_SIZE, 3, target.nodes().size());
        assertTrue(ERR_NOT_FOUND, target.nodes().contains(COMPUTE_2));
        assertTrue(ERR_NOT_FOUND, target.nodes().contains(COMPUTE_3));
        assertTrue(ERR_NOT_FOUND, target.nodes().contains(GATEWAY_1));
    }