@Test
  public void removeAll() {
    List<VmNic> interfaces = Arrays.asList(createNewInterface(), createNewInterface());

    when(vmNicDao.getAllForVm(any(Guid.class))).thenReturn(interfaces);

    vmInterfaceManager.removeAll(Guid.newGuid());

    for (VmNic iface : interfaces) {
      verifyRemoveAllDelegatedCorrectly(iface);
    }
  }