### Question:
SDNCVnfResources { public GenericResourceApiVnfOperationInformation assignVnf(GenericVnf vnf, ServiceInstance serviceInstance, Customer customer, CloudRegion cloudRegion, RequestContext requestContext, boolean homing, URI callbackURI) { return sdncRM.reqMapper(SDNCSvcOperation.VNF_TOPOLOGY_OPERATION, SDNCSvcAction.ASSIGN, GenericResourceApiRequestActionEnumeration.CREATEVNFINSTANCE, vnf, serviceInstance, customer, cloudRegion, requestContext, homing, callbackURI); }  GenericResourceApiVnfOperationInformation assignVnf(GenericVnf vnf, ServiceInstance serviceInstance,
            Customer customer, CloudRegion cloudRegion, RequestContext requestContext, boolean homing,
            URI callbackURI); GenericResourceApiVnfOperationInformation activateVnf(GenericVnf vnf, ServiceInstance serviceInstance,
            Customer customer, CloudRegion cloudRegion, RequestContext requestContext, URI callbackURI); GenericResourceApiVnfOperationInformation deactivateVnf(GenericVnf vnf, ServiceInstance serviceInstance,
            Customer customer, CloudRegion cloudRegion, RequestContext requestContext, URI callbackURI); GenericResourceApiVnfOperationInformation unassignVnf(GenericVnf vnf, ServiceInstance serviceInstance,
            Customer customer, CloudRegion cloudRegion, RequestContext requestContext, URI callbackURI); GenericResourceApiVnfOperationInformation deleteVnf(GenericVnf vnf, ServiceInstance serviceInstance,
            Customer customer, CloudRegion cloudRegion, RequestContext requestContext, URI callbackURI); GenericResourceApiVnfOperationInformation changeModelVnf(GenericVnf vnf, ServiceInstance serviceInstance,
            Customer customer, CloudRegion cloudRegion, RequestContext requestContext, URI callbackURI); String queryVnf(GenericVnf vnf);  }### Answer:
@Test public void assignVnfTest() { doReturn(sdncReq).when(MOCK_vnfTopologyOperationRequestMapper).reqMapper(isA(SDNCSvcOperation.class), isA(SDNCSvcAction.class), isA(GenericResourceApiRequestActionEnumeration.class), isA(GenericVnf.class), isA(ServiceInstance.class), isA(Customer.class), isA(CloudRegion.class), isA(RequestContext.class), anyBoolean(), any(URI.class)); sdncVnfResources.assignVnf(genericVnf, serviceInstance, customer, cloudRegion, requestContext, false, testURI); verify(MOCK_vnfTopologyOperationRequestMapper, times(1)).reqMapper(isA(SDNCSvcOperation.class), isA(SDNCSvcAction.class), isA(GenericResourceApiRequestActionEnumeration.class), isA(GenericVnf.class), isA(ServiceInstance.class), isA(Customer.class), isA(CloudRegion.class), isA(RequestContext.class), anyBoolean(), any(URI.class)); }