### Question:
AAIVpnBindingResources { public void createCustomer(Customer customer) { AAIResourceUri uriCustomer = AAIUriFactory .createResourceUri(AAIFluentTypeBuilder.business().customer(customer.getGlobalCustomerId())); injectionHelper.getAaiClient().create(uriCustomer, aaiObjectMapper.mapCustomer(customer)); }  boolean existsCustomer(Customer customer); Optional<VpnBindings> getVpnBindingByCustomerVpnId(String customerVpnId); void createVpnBinding(VpnBinding vpnBinding); void createCustomer(Customer customer); Optional<org.onap.aai.domain.yang.VpnBinding> getVpnBinding(String vpnId); void connectCustomerToVpnBinding(String globalSubscriberId, String vpnId);  }### Answer:
@Test public void createCustomerTest() { org.onap.aai.domain.yang.Customer mappedCustomer = new org.onap.aai.domain.yang.Customer(); mappedCustomer.setGlobalCustomerId(customer.getGlobalCustomerId()); doReturn(mappedCustomer).when(MOCK_aaiObjectMapper).mapCustomer(customer); doNothing().when(MOCK_aaiResourcesClient).create(isA(AAIResourceUri.class), isA(org.onap.aai.domain.yang.Customer.class)); aaiVpnBindingResources.createCustomer(customer); verify(MOCK_aaiResourcesClient, times(1)).create(isA(AAIResourceUri.class), isA(org.onap.aai.domain.yang.Customer.class)); verify(MOCK_aaiObjectMapper, times(1)).mapCustomer(customer); }