### Question:
AAIVolumeGroupResources { public void createVolumeGroup(VolumeGroup volumeGroup, CloudRegion cloudRegion) { AAIResourceUri uriVolumeGroup = AAIUriFactory.createResourceUri(AAIFluentTypeBuilder.cloudInfrastructure() .cloudRegion(cloudRegion.getCloudOwner(), cloudRegion.getLcpCloudRegionId()) .volumeGroup(volumeGroup.getVolumeGroupId())); volumeGroup.setOrchestrationStatus(OrchestrationStatus.ASSIGNED); injectionHelper.getAaiClient().create(uriVolumeGroup, aaiObjectMapper.mapVolumeGroup(volumeGroup)); }  void createVolumeGroup(VolumeGroup volumeGroup, CloudRegion cloudRegion); void updateOrchestrationStatusVolumeGroup(VolumeGroup volumeGroup, CloudRegion cloudRegion,
            OrchestrationStatus orchestrationStatus); void connectVolumeGroupToVnf(GenericVnf genericVnf, VolumeGroup volumeGroup, CloudRegion cloudRegion); void connectVolumeGroupToTenant(VolumeGroup volumeGroup, CloudRegion cloudRegion); void deleteVolumeGroup(VolumeGroup volumeGroup, CloudRegion cloudRegion); void updateHeatStackIdVolumeGroup(VolumeGroup volumeGroup, CloudRegion cloudRegion); boolean checkNameInUse(VolumeGroup volumeGroup);  }### Answer:
@Test public void createVolumeGroupTest() throws Exception { volumeGroup.setOrchestrationStatus(OrchestrationStatus.PRECREATED); doNothing().when(MOCK_aaiResourcesClient).create(isA(AAIResourceUri.class), isA(org.onap.aai.domain.yang.VolumeGroup.class)); aaiVolumeGroupResources.createVolumeGroup(volumeGroup, cloudRegion); verify(MOCK_aaiResourcesClient, times(1)).create(any(AAIResourceUri.class), ArgumentMatchers.isNull()); assertEquals(OrchestrationStatus.ASSIGNED, volumeGroup.getOrchestrationStatus()); }