@Test
  public void testRemoveVmFromPool() {
    int before = dao.getVmPoolsMapByVmPoolId(existingVmPoolMap.getvm_pool_id()).size();

    dao.removeVmFromVmPool(EXISTING_VM_ID);

    int after = dao.getVmPoolsMapByVmPoolId(existingVmPoolMap.getvm_pool_id()).size();

    assertEquals(before - 1, after);

    vm_pool_map result = dao.getVmPoolMapByVmGuid(EXISTING_VM_ID);

    assertNull(result);
  }
  @Test
  public void testAddVmToPool() {
    int before = dao.getVmPoolsMapByVmPoolId(newVmPoolMap.getvm_pool_id()).size();

    dao.addVmToPool(newVmPoolMap);

    int after = dao.getVmPoolsMapByVmPoolId(newVmPoolMap.getvm_pool_id()).size();

    assertEquals(before + 1, after);

    vm_pool_map result = dao.getVmPoolMapByVmGuid(newVmPoolMap.getvm_guid());

    assertNotNull(result);
    assertEquals(newVmPoolMap, result);
  }