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diff --git a/plans/usecases-pnf-sw-upgrade/pnf-sw-upgrade/sorch/simulator/aai-simulator/src/test/java/org/onap/so/aaisimulator/controller/BusinessControllerTest.java b/plans/usecases-pnf-sw-upgrade/pnf-sw-upgrade/sorch/simulator/aai-simulator/src/test/java/org/onap/so/aaisimulator/controller/BusinessControllerTest.java
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+++ b/plans/usecases-pnf-sw-upgrade/pnf-sw-upgrade/sorch/simulator/aai-simulator/src/test/java/org/onap/so/aaisimulator/controller/BusinessControllerTest.java
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+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.so.aaisimulator.controller;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+import static org.onap.so.aaisimulator.utils.Constants.BI_DIRECTIONAL_RELATIONSHIP_LIST_URL;
+import static org.onap.so.aaisimulator.utils.Constants.X_HTTP_METHOD_OVERRIDE;
+import static org.onap.so.aaisimulator.utils.TestConstants.CUSTOMERS_URL;
+import static org.onap.so.aaisimulator.utils.TestConstants.GENERIC_VNF_NAME;
+import static org.onap.so.aaisimulator.utils.TestConstants.GENERIC_VNF_URL;
+import static org.onap.so.aaisimulator.utils.TestConstants.GLOBAL_CUSTOMER_ID;
+import static org.onap.so.aaisimulator.utils.TestConstants.RELATED_TO_URL;
+import static org.onap.so.aaisimulator.utils.TestConstants.SERVICE_INSTANCES_URL;
+import static org.onap.so.aaisimulator.utils.TestConstants.SERVICE_INSTANCE_ID;
+import static org.onap.so.aaisimulator.utils.TestConstants.SERVICE_INSTANCE_URL;
+import static org.onap.so.aaisimulator.utils.TestConstants.SERVICE_NAME;
+import static org.onap.so.aaisimulator.utils.TestConstants.SERVICE_SUBSCRIPTIONS_URL;
+import static org.onap.so.aaisimulator.utils.TestConstants.SERVICE_TYPE;
+import static org.onap.so.aaisimulator.utils.TestConstants.VNF_ID;
+import static org.onap.so.aaisimulator.utils.TestUtils.getCustomer;
+import static org.onap.so.aaisimulator.utils.TestUtils.getServiceInstance;
+import java.io.IOException;
+import java.util.Optional;
+import java.util.UUID;
+import org.junit.After;
+import org.junit.Test;
+import org.onap.aai.domain.yang.Customer;
+import org.onap.aai.domain.yang.GenericVnf;
+import org.onap.aai.domain.yang.GenericVnfs;
+import org.onap.aai.domain.yang.Relationship;
+import org.onap.aai.domain.yang.ServiceInstance;
+import org.onap.aai.domain.yang.ServiceInstances;
+import org.onap.aai.domain.yang.ServiceSubscription;
+import org.onap.so.aaisimulator.service.providers.CustomerCacheServiceProvider;
+import org.onap.so.aaisimulator.utils.RequestError;
+import org.onap.so.aaisimulator.utils.RequestErrorResponseUtils;
+import org.onap.so.aaisimulator.utils.ServiceException;
+import org.onap.so.aaisimulator.utils.TestUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+
+/**
+ * @author waqas.ikram@ericsson.com
+ *
+ */
+public class BusinessControllerTest extends AbstractSpringBootTest {
+
+    private static final String FIREWALL_SERVICE_TYPE = "Firewall";
+
+    private static final String ORCHESTRATION_STATUS = "Active";
+
+    @Autowired
+    private CustomerCacheServiceProvider cacheServiceProvider;
+
+    @After
+    public void after() {
+        cacheServiceProvider.clearAll();
+    }
+
+    @Test
+    public void test_putCustomer_successfullyAddedToCache() throws Exception {
+        invokeCustomerEndPointAndAssertResponse();
+        assertTrue(cacheServiceProvider.getCustomer(GLOBAL_CUSTOMER_ID).isPresent());
+    }
+
+    @Test
+    public void test_getCustomer_ableToRetrieveCustomer() throws Exception {
+        final String url = getUrl(CUSTOMERS_URL);
+
+        final ResponseEntity<Void> response = testRestTemplateService.invokeHttpPut(url, getCustomer(), Void.class);
+        assertEquals(HttpStatus.ACCEPTED, response.getStatusCode());
+
+        final ResponseEntity<Customer> actual = testRestTemplateService.invokeHttpGet(url, Customer.class);
+
+        assertEquals(HttpStatus.OK, actual.getStatusCode());
+        assertTrue(actual.hasBody());
+
+        final Customer actualCustomer = actual.getBody();
+        assertEquals(GLOBAL_CUSTOMER_ID, actualCustomer.getGlobalCustomerId());
+        assertNotNull(actualCustomer.getResourceVersion());
+        assertFalse(actualCustomer.getResourceVersion().isEmpty());
+    }
+
+    @Test
+    public void test_getCustomer_returnRequestError_ifCustomerNotInCache() throws Exception {
+        final String url = getUrl(CUSTOMERS_URL);
+
+        final ResponseEntity<RequestError> actual = testRestTemplateService.invokeHttpGet(url, RequestError.class);
+
+        assertEquals(HttpStatus.NOT_FOUND, actual.getStatusCode());
+
+        final RequestError actualError = actual.getBody();
+        final ServiceException serviceException = actualError.getServiceException();
+
+        assertNotNull(serviceException);
+        assertEquals(RequestErrorResponseUtils.ERROR_MESSAGE_ID, serviceException.getMessageId());
+        assertEquals(RequestErrorResponseUtils.ERROR_MESSAGE, serviceException.getText());
+        assertTrue(serviceException.getVariables().contains(HttpMethod.GET.toString()));
+
+    }
+
+    @Test
+    public void test_getServiceSubscription_ableToRetrieveServiceSubscriptionFromCache() throws Exception {
+        final String url = getUrl(CUSTOMERS_URL, SERVICE_SUBSCRIPTIONS_URL);
+
+        invokeCustomerEndPointAndAssertResponse();
+
+        final ResponseEntity<ServiceSubscription> actual =
+                testRestTemplateService.invokeHttpGet(url, ServiceSubscription.class);
+
+        assertEquals(HttpStatus.OK, actual.getStatusCode());
+        assertTrue(actual.hasBody());
+
+        final ServiceSubscription actualServiceSubscription = actual.getBody();
+        assertEquals(SERVICE_TYPE, actualServiceSubscription.getServiceType());
+        assertNotNull(actualServiceSubscription.getRelationshipList());
+        assertFalse(actualServiceSubscription.getRelationshipList().getRelationship().isEmpty());
+    }
+
+    @Test
+    public void test_putSericeInstance_ableToRetrieveServiceInstanceFromCache() throws Exception {
+
+        invokeCustomerEndPointAndAssertResponse();
+        invokeServiceInstanceEndPointAndAssertResponse();
+
+
+        final Optional<ServiceInstance> actual =
+                cacheServiceProvider.getServiceInstance(GLOBAL_CUSTOMER_ID, SERVICE_TYPE, SERVICE_INSTANCE_ID);
+
+        assertTrue(actual.isPresent());
+        final ServiceInstance actualServiceInstance = actual.get();
+
+        assertEquals(SERVICE_INSTANCE_ID, actualServiceInstance.getServiceInstanceId());
+        assertEquals(SERVICE_NAME, actualServiceInstance.getServiceInstanceName());
+
+    }
+
+    @Test
+    public void test_getSericeInstance_usingServiceInstanceName_ableToRetrieveServiceInstanceFromCache()
+            throws Exception {
+
+        invokeCustomerEndPointAndAssertResponse();
+        invokeServiceInstanceEndPointAndAssertResponse();
+
+
+        final String serviceInstanceUrl = getUrl(CUSTOMERS_URL, SERVICE_SUBSCRIPTIONS_URL, SERVICE_INSTANCES_URL)
+                + "?depth=2&service-instance-name=" + SERVICE_NAME;
+
+        final ResponseEntity<ServiceInstances> actual =
+                testRestTemplateService.invokeHttpGet(serviceInstanceUrl, ServiceInstances.class);
+
+        assertEquals(HttpStatus.OK, actual.getStatusCode());
+        assertTrue(actual.hasBody());
+
+        final ServiceInstances actualServiceInstances = actual.getBody();
+        assertFalse(actualServiceInstances.getServiceInstance().isEmpty());
+
+        assertEquals(SERVICE_NAME, actualServiceInstances.getServiceInstance().get(0).getServiceInstanceName());
+
+    }
+
+    @Test
+    public void test_getSericeInstance_usingServiceInstanceName_returnRequestErrorIfnoServiceInstanceFound()
+            throws Exception {
+
+        invokeCustomerEndPointAndAssertResponse();
+
+        final String serviceInstanceUrl = getUrl(CUSTOMERS_URL, SERVICE_SUBSCRIPTIONS_URL, SERVICE_INSTANCES_URL)
+                + "?depth=2&service-instance-name=" + SERVICE_NAME;
+
+        final ResponseEntity<RequestError> actual =
+                testRestTemplateService.invokeHttpGet(serviceInstanceUrl, RequestError.class);
+
+        assertEquals(HttpStatus.NOT_FOUND, actual.getStatusCode());
+        assertTrue(actual.hasBody());
+
+        assertNotNull(actual.getBody().getServiceException());
+
+    }
+
+    @Test
+    public void test_getSericeInstance_usingServiceInstanceId_ableToRetrieveServiceInstanceFromCache()
+            throws Exception {
+
+        final String url = getUrl(CUSTOMERS_URL, SERVICE_SUBSCRIPTIONS_URL, SERVICE_INSTANCE_URL);
+
+        invokeCustomerEndPointAndAssertResponse();
+        invokeServiceInstanceEndPointAndAssertResponse();
+
+        final ResponseEntity<ServiceInstance> actual =
+                testRestTemplateService.invokeHttpGet(url, ServiceInstance.class);
+
+        assertEquals(HttpStatus.OK, actual.getStatusCode());
+        assertTrue(actual.hasBody());
+
+        final ServiceInstance actualServiceInstance = actual.getBody();
+
+        assertEquals(SERVICE_NAME, actualServiceInstance.getServiceInstanceName());
+        assertEquals(SERVICE_INSTANCE_ID, actualServiceInstance.getServiceInstanceId());
+
+    }
+
+    @Test
+    public void test_getSericeInstance_usinginvalidServiceInstanceId_shouldReturnError() throws Exception {
+
+        invokeCustomerEndPointAndAssertResponse();
+
+        invokeServiceInstanceEndPointAndAssertResponse();
+
+
+        final String invalidServiceInstanceUrl = getUrl(CUSTOMERS_URL, SERVICE_SUBSCRIPTIONS_URL,
+                SERVICE_INSTANCES_URL + "/service-instance/" + UUID.randomUUID());
+
+        final ResponseEntity<RequestError> actual =
+                testRestTemplateService.invokeHttpGet(invalidServiceInstanceUrl, RequestError.class);
+
+        assertEquals(HttpStatus.NOT_FOUND, actual.getStatusCode());
+
+        final RequestError actualError = actual.getBody();
+        final ServiceException serviceException = actualError.getServiceException();
+
+        assertNotNull(serviceException);
+        assertEquals(RequestErrorResponseUtils.ERROR_MESSAGE_ID, serviceException.getMessageId());
+        assertEquals(RequestErrorResponseUtils.ERROR_MESSAGE, serviceException.getText());
+        assertTrue(serviceException.getVariables().contains(HttpMethod.GET.toString()));
+
+    }
+
+    @Test
+    public void test_getSericeInstance_usingInvalidServiceInstanceName_shouldReturnError() throws Exception {
+
+        invokeCustomerEndPointAndAssertResponse();
+        invokeServiceInstanceEndPointAndAssertResponse();
+
+
+        final String serviceInstanceUrl = getUrl(CUSTOMERS_URL, SERVICE_SUBSCRIPTIONS_URL, SERVICE_INSTANCES_URL)
+                + "?service-instance-name=Dummy&depth=2";
+
+        final ResponseEntity<RequestError> actual =
+                testRestTemplateService.invokeHttpGet(serviceInstanceUrl, RequestError.class);
+
+        assertEquals(HttpStatus.NOT_FOUND, actual.getStatusCode());
+
+        final RequestError actualError = actual.getBody();
+        final ServiceException serviceException = actualError.getServiceException();
+
+        assertNotNull(serviceException);
+        assertEquals(RequestErrorResponseUtils.ERROR_MESSAGE_ID, serviceException.getMessageId());
+        assertEquals(RequestErrorResponseUtils.ERROR_MESSAGE, serviceException.getText());
+        assertTrue(serviceException.getVariables().contains(HttpMethod.GET.toString()));
+
+    }
+
+    @Test
+    public void test_PathSericeInstance_usingServiceInstanceId_OrchStatusChangedInCache() throws Exception {
+
+        final String url = getUrl(CUSTOMERS_URL, SERVICE_SUBSCRIPTIONS_URL, SERVICE_INSTANCE_URL);
+
+        invokeCustomerEndPointAndAssertResponse();
+        invokeServiceInstanceEndPointAndAssertResponse();
+
+        final HttpHeaders httpHeaders = testRestTemplateService.getHttpHeaders();
+        httpHeaders.add(X_HTTP_METHOD_OVERRIDE, HttpMethod.PATCH.toString());
+
+        final ResponseEntity<Void> orchStatuUpdateServiceInstanceResponse = testRestTemplateService
+                .invokeHttpPost(httpHeaders, url, TestUtils.getOrchStatuUpdateServiceInstance(), Void.class);
+
+        assertEquals(HttpStatus.ACCEPTED, orchStatuUpdateServiceInstanceResponse.getStatusCode());
+
+        final ResponseEntity<ServiceInstance> actual =
+                testRestTemplateService.invokeHttpGet(url, ServiceInstance.class);
+
+        assertEquals(HttpStatus.OK, actual.getStatusCode());
+        assertTrue(actual.hasBody());
+
+        final ServiceInstance actualServiceInstance = actual.getBody();
+
+        assertEquals(SERVICE_NAME, actualServiceInstance.getServiceInstanceName());
+        assertEquals(SERVICE_INSTANCE_ID, actualServiceInstance.getServiceInstanceId());
+        assertEquals(ORCHESTRATION_STATUS, actualServiceInstance.getOrchestrationStatus());
+
+    }
+
+    @Test
+    public void test_putServiceSubscription_successfullyAddedToCache() throws Exception {
+        final String serviceSubscriptionurl =
+                getUrl(CUSTOMERS_URL, "/service-subscriptions/service-subscription/", FIREWALL_SERVICE_TYPE);
+
+        invokeCustomerEndPointAndAssertResponse();
+
+        final ResponseEntity<Void> responseEntity = testRestTemplateService.invokeHttpPut(serviceSubscriptionurl,
+                TestUtils.getServiceSubscription(), Void.class);
+        assertEquals(HttpStatus.ACCEPTED, responseEntity.getStatusCode());
+
+        final ResponseEntity<ServiceSubscription> actual =
+                testRestTemplateService.invokeHttpGet(serviceSubscriptionurl, ServiceSubscription.class);
+
+        assertEquals(HttpStatus.OK, actual.getStatusCode());
+        assertTrue(actual.hasBody());
+
+        final ServiceSubscription actualServiceSubscription = actual.getBody();
+        assertEquals(FIREWALL_SERVICE_TYPE, actualServiceSubscription.getServiceType());
+
+    }
+
+    @Test
+    public void test_putSericeInstanceRelatedTo_ableToRetrieveServiceInstanceFromCache() throws Exception {
+
+        final String url = getUrl(CUSTOMERS_URL, SERVICE_SUBSCRIPTIONS_URL, SERVICE_INSTANCE_URL);
+
+        invokeCustomerEndPointAndAssertResponse();
+
+        invokeServiceInstanceEndPointAndAssertResponse();
+
+        final String relationShipUrl = getUrl(CUSTOMERS_URL, SERVICE_SUBSCRIPTIONS_URL, SERVICE_INSTANCE_URL,
+                BI_DIRECTIONAL_RELATIONSHIP_LIST_URL);
+
+        final ResponseEntity<Relationship> responseEntity2 = testRestTemplateService.invokeHttpPut(relationShipUrl,
+                TestUtils.getRelationShipJsonObject(), Relationship.class);
+
+        assertEquals(HttpStatus.ACCEPTED, responseEntity2.getStatusCode());
+
+        final String genericVnfUrl = getUrl(GENERIC_VNF_URL, VNF_ID);
+        final ResponseEntity<Void> genericVnfResponse =
+                testRestTemplateService.invokeHttpPut(genericVnfUrl, TestUtils.getGenericVnf(), Void.class);
+        assertEquals(HttpStatus.ACCEPTED, genericVnfResponse.getStatusCode());
+
+        final ResponseEntity<GenericVnfs> actual = testRestTemplateService
+                .invokeHttpGet(url + RELATED_TO_URL + "?vnf-name=" + GENERIC_VNF_NAME, GenericVnfs.class);
+
+        assertEquals(HttpStatus.OK, actual.getStatusCode());
+
+        assertTrue(actual.hasBody());
+        final GenericVnfs genericVnfs = actual.getBody();
+        assertFalse(genericVnfs.getGenericVnf().isEmpty());
+        final GenericVnf genericVnf = genericVnfs.getGenericVnf().get(0);
+        assertEquals(GENERIC_VNF_NAME, genericVnf.getVnfName());
+    }
+
+    @Test
+    public void test_DeleteSericeInstance_ServiceInstanceRemovedFromCache() throws Exception {
+        final String url = getUrl(CUSTOMERS_URL, SERVICE_SUBSCRIPTIONS_URL, SERVICE_INSTANCE_URL);
+
+        invokeCustomerEndPointAndAssertResponse();
+
+        invokeServiceInstanceEndPointAndAssertResponse();
+
+        final Optional<ServiceInstance> optional =
+                cacheServiceProvider.getServiceInstance(GLOBAL_CUSTOMER_ID, SERVICE_TYPE, SERVICE_INSTANCE_ID);
+        assertTrue(optional.isPresent());
+        final ServiceInstance serviceInstance = optional.get();
+
+        final ResponseEntity<Void> responseEntity = testRestTemplateService
+                .invokeHttpDelete(url + "?resource-version=" + serviceInstance.getResourceVersion(), Void.class);
+        assertEquals(HttpStatus.NO_CONTENT, responseEntity.getStatusCode());
+        assertFalse(cacheServiceProvider.getServiceInstance(GLOBAL_CUSTOMER_ID, SERVICE_TYPE, SERVICE_INSTANCE_ID)
+                .isPresent());
+    }
+
+    private void invokeServiceInstanceEndPointAndAssertResponse() throws IOException {
+        final String url = getUrl(CUSTOMERS_URL, SERVICE_SUBSCRIPTIONS_URL, SERVICE_INSTANCE_URL);
+        final ResponseEntity<Void> responseEntity =
+                testRestTemplateService.invokeHttpPut(url, getServiceInstance(), Void.class);
+        assertEquals(HttpStatus.ACCEPTED, responseEntity.getStatusCode());
+    }
+
+    private void invokeCustomerEndPointAndAssertResponse() throws Exception, IOException {
+        final ResponseEntity<Void> response =
+                testRestTemplateService.invokeHttpPut(getUrl(CUSTOMERS_URL), getCustomer(), Void.class);
+
+        assertEquals(HttpStatus.ACCEPTED, response.getStatusCode());
+    }
+
+}