Implementing Create NS

Change-Id: Ib54e7476820fe716137e6d5e08e4d0deb9f104b9
Issue-ID: SO-3179
Signed-off-by: waqas.ikram <waqas.ikram@est.tech>

4 files changed, 607 insertions, 0 deletions

diff --git a/so-etsi-nfvo/so-etsi-nfvo-ns-lcm/so-etsi-nfvo-ns-lcm-bpmn-flows/src/test/java/org/onap/so/etsi/nfvo/ns/lcm/bpmn/flows/BaseTest.java b/so-etsi-nfvo/so-etsi-nfvo-ns-lcm/so-etsi-nfvo-ns-lcm-bpmn-flows/src/test/java/org/onap/so/etsi/nfvo/ns/lcm/bpmn/flows/BaseTest.java
new file mode 100644
index 0000000000..16557e74d9
--- /dev/null
+++ b/so-etsi-nfvo/so-etsi-nfvo-ns-lcm/so-etsi-nfvo-ns-lcm-bpmn-flows/src/test/java/org/onap/so/etsi/nfvo/ns/lcm/bpmn/flows/BaseTest.java
@@ -0,0 +1,138 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2020 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.etsi.nfvo.ns.lcm.bpmn.flows;
+
+import static org.slf4j.LoggerFactory.getLogger;
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.UUID;
+import java.util.concurrent.TimeUnit;
+import org.camunda.bpm.engine.HistoryService;
+import org.camunda.bpm.engine.RuntimeService;
+import org.camunda.bpm.engine.history.HistoricProcessInstance;
+import org.camunda.bpm.engine.history.HistoricVariableInstance;
+import org.camunda.bpm.engine.runtime.ProcessInstance;
+import org.junit.runner.RunWith;
+import org.onap.so.etsi.nfvo.ns.lcm.database.beans.JobAction;
+import org.onap.so.etsi.nfvo.ns.lcm.database.beans.JobStatusEnum;
+import org.onap.so.etsi.nfvo.ns.lcm.database.beans.NfvoJob;
+import org.onap.so.etsi.nfvo.ns.lcm.database.service.DatabaseServiceProvider;
+import org.slf4j.Logger;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.cloud.contract.wiremock.AutoConfigureWireMock;
+import org.springframework.test.context.ActiveProfiles;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringRunner;
+import com.github.tomakehurst.wiremock.WireMockServer;
+
+/**
+ * @author Waqas Ikram (waqas.ikram@est.tech)
+ *
+ */
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = TestApplication.class, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+@ActiveProfiles("test")
+@ContextConfiguration
+@AutoConfigureWireMock(port = 0)
+public abstract class BaseTest {
+    protected static final String ETSI_CATALOG_URL = "http://modeling-etsicatalog.onap:8806/api";
+    protected static final String SOL003_ADAPTER_ENDPOINT_URL = "https://so-vnfm-adapter.onap:9092/so/vnfm-adapter/v1";
+    protected static final String GLOBAL_CUSTOMER_ID = UUID.randomUUID().toString();
+    protected static final String NSD_INVARIANT_ID = UUID.randomUUID().toString();
+    protected static final String SERVICE_TYPE = "NetworkService";
+    protected static final Logger logger = getLogger(BaseTest.class);
+
+    private static final long TIME_OUT_IN_SECONDS = 60;
+    private static final int SLEEP_TIME_IN_SECONDS = 5;
+
+    @Autowired
+    private HistoryService historyService;
+
+    @Autowired
+    private RuntimeService runtimeService;
+
+    @Autowired
+    protected DatabaseServiceProvider databaseServiceProvider;
+
+    @Autowired
+    protected WireMockServer wireMockServer;
+
+    public NfvoJob createNewNfvoJob(final String jobAction, final String nsdId, final String nsName) {
+        final NfvoJob newJob = new NfvoJob().startTime(LocalDateTime.now()).jobType("NS").jobAction(JobAction.CREATE)
+                .status(JobStatusEnum.STARTING).resourceId(nsdId).resourceName(nsName);
+        databaseServiceProvider.addJob(newJob);
+        return newJob;
+    }
+
+    public Optional<NfvoJob> getNfvoJob(final String jobId) {
+        return databaseServiceProvider.getJob(jobId);
+    }
+
+    public Optional<NfvoJob> getJobByResourceId(final String resourceId) {
+        return databaseServiceProvider.getJobByResourceId(resourceId);
+    }
+
+    public ProcessInstance executeWorkflow(final String processDefinitionKey, final String businessKey,
+            final Map<String, Object> variables) {
+        return runtimeService.startProcessInstanceByKey(processDefinitionKey, businessKey, variables);
+    }
+
+    public HistoricProcessInstance getHistoricProcessInstance(final String processInstanceId) {
+        return historyService.createHistoricProcessInstanceQuery().processInstanceId(processInstanceId).singleResult();
+    }
+
+    public HistoricVariableInstance getVariable(final String processInstanceId, final String name) {
+        return historyService.createHistoricVariableInstanceQuery().processInstanceId(processInstanceId)
+                .variableName(name).singleResult();
+    }
+
+    public List<HistoricVariableInstance> getVariables(final String processInstanceId) {
+        return historyService.createHistoricVariableInstanceQuery().processInstanceId(processInstanceId).list();
+    }
+
+    public boolean waitForProcessInstanceToFinish(final String processInstanceId) throws InterruptedException {
+        final long startTimeInMillis = System.currentTimeMillis();
+        final long timeOutTime = startTimeInMillis + TimeUnit.SECONDS.toMillis(TIME_OUT_IN_SECONDS);
+        while (timeOutTime > System.currentTimeMillis()) {
+
+            if (isProcessEndedByProcessInstanceId(processInstanceId)) {
+                logger.info("processInstanceId: {} is finished", processInstanceId);
+                return true;
+            }
+            logger.info("processInstanceId: {} is still running", processInstanceId);
+            logger.info("Process instance {} not finished yet, will try again in {} seconds", processInstanceId,
+                    SLEEP_TIME_IN_SECONDS);
+            TimeUnit.SECONDS.sleep(SLEEP_TIME_IN_SECONDS);
+        }
+        logger.warn("Timeout {} process didn't finished ", processInstanceId);
+        return false;
+    }
+
+
+    public boolean isProcessEndedByProcessInstanceId(final String processInstanceId) {
+        final HistoricProcessInstance processInstance = getHistoricProcessInstance(processInstanceId);
+        return processInstance != null
+                && !HistoricProcessInstance.STATE_ACTIVE.equalsIgnoreCase(processInstance.getState());
+    }
+
+}
diff --git a/so-etsi-nfvo/so-etsi-nfvo-ns-lcm/so-etsi-nfvo-ns-lcm-bpmn-flows/src/test/java/org/onap/so/etsi/nfvo/ns/lcm/bpmn/flows/DefaultToShortClassNameBeanNameGenerator.java b/so-etsi-nfvo/so-etsi-nfvo-ns-lcm/so-etsi-nfvo-ns-lcm-bpmn-flows/src/test/java/org/onap/so/etsi/nfvo/ns/lcm/bpmn/flows/DefaultToShortClassNameBeanNameGenerator.java
new file mode 100644
index 0000000000..f91cf9d0c3
--- /dev/null
+++ b/so-etsi-nfvo/so-etsi-nfvo-ns-lcm/so-etsi-nfvo-ns-lcm-bpmn-flows/src/test/java/org/onap/so/etsi/nfvo/ns/lcm/bpmn/flows/DefaultToShortClassNameBeanNameGenerator.java
@@ -0,0 +1,37 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2020 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.etsi.nfvo.ns.lcm.bpmn.flows;
+
+import org.springframework.beans.factory.config.BeanDefinition;
+import org.springframework.context.annotation.AnnotationBeanNameGenerator;
+import org.springframework.util.ClassUtils;
+
+/**
+ * @author Waqas Ikram (waqas.ikram@est.tech)
+ *
+ */
+public class DefaultToShortClassNameBeanNameGenerator extends AnnotationBeanNameGenerator {
+
+    @Override
+    protected String buildDefaultBeanName(final BeanDefinition definition) {
+        return ClassUtils.getShortName(definition.getBeanClassName());
+    }
+}
diff --git a/so-etsi-nfvo/so-etsi-nfvo-ns-lcm/so-etsi-nfvo-ns-lcm-bpmn-flows/src/test/java/org/onap/so/etsi/nfvo/ns/lcm/bpmn/flows/TestApplication.java b/so-etsi-nfvo/so-etsi-nfvo-ns-lcm/so-etsi-nfvo-ns-lcm-bpmn-flows/src/test/java/org/onap/so/etsi/nfvo/ns/lcm/bpmn/flows/TestApplication.java
new file mode 100644
index 0000000000..18d601930c
--- /dev/null
+++ b/so-etsi-nfvo/so-etsi-nfvo-ns-lcm/so-etsi-nfvo-ns-lcm-bpmn-flows/src/test/java/org/onap/so/etsi/nfvo/ns/lcm/bpmn/flows/TestApplication.java
@@ -0,0 +1,45 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2020 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.etsi.nfvo.ns.lcm.bpmn.flows;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.jackson.JacksonAutoConfiguration;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.FilterType;
+import org.springframework.context.annotation.ComponentScan.Filter;
+
+/**
+ * @author Waqas Ikram (waqas.ikram@est.tech)
+ *
+ */
+@SpringBootApplication(scanBasePackages = {"org.onap.so"})
+@EnableAutoConfiguration(exclude = {JacksonAutoConfiguration.class})
+@ComponentScan(basePackages = {"org.onap"}, nameGenerator = DefaultToShortClassNameBeanNameGenerator.class,
+        excludeFilters = {@Filter(type = FilterType.ANNOTATION, classes = SpringBootApplication.class)})
+public class TestApplication {
+
+    public static void main(final String[] args) {
+        new SpringApplication(TestApplication.class).run(args);
+    }
+
+}
diff --git a/so-etsi-nfvo/so-etsi-nfvo-ns-lcm/so-etsi-nfvo-ns-lcm-bpmn-flows/src/test/java/org/onap/so/etsi/nfvo/ns/workflow/engine/tasks/CreateNsTaskTest.java b/so-etsi-nfvo/so-etsi-nfvo-ns-lcm/so-etsi-nfvo-ns-lcm-bpmn-flows/src/test/java/org/onap/so/etsi/nfvo/ns/workflow/engine/tasks/CreateNsTaskTest.java
new file mode 100644
index 0000000000..05213a344f
--- /dev/null
+++ b/so-etsi-nfvo/so-etsi-nfvo-ns-lcm/so-etsi-nfvo-ns-lcm-bpmn-flows/src/test/java/org/onap/so/etsi/nfvo/ns/workflow/engine/tasks/CreateNsTaskTest.java
@@ -0,0 +1,387 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2020 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.etsi.nfvo.ns.workflow.engine.tasks;
+
+import static com.github.tomakehurst.wiremock.client.WireMock.get;
+import static com.github.tomakehurst.wiremock.client.WireMock.notFound;
+import static com.github.tomakehurst.wiremock.client.WireMock.ok;
+import static com.github.tomakehurst.wiremock.client.WireMock.put;
+import static com.github.tomakehurst.wiremock.client.WireMock.urlMatching;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+import static org.onap.so.etsi.nfvo.ns.lcm.bpmn.flows.extclients.etsicatalog.EtsiCatalogServiceProviderConfiguration.ETSI_CATALOG_REST_TEMPLATE_BEAN;
+import static org.springframework.test.web.client.match.MockRestRequestMatchers.method;
+import static org.springframework.test.web.client.match.MockRestRequestMatchers.requestTo;
+import static org.springframework.test.web.client.response.MockRestResponseCreators.withStatus;
+import static org.springframework.test.web.client.response.MockRestResponseCreators.withSuccess;
+import java.time.LocalDateTime;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Optional;
+import java.util.UUID;
+import org.camunda.bpm.engine.history.HistoricProcessInstance;
+import org.camunda.bpm.engine.history.HistoricVariableInstance;
+import org.camunda.bpm.engine.runtime.ProcessInstance;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onap.so.adapters.etsisol003adapter.pkgm.extclients.etsicatalog.model.NsdInfo;
+import org.onap.so.etsi.nfvo.ns.lcm.bpmn.flows.BaseTest;
+import org.onap.so.etsi.nfvo.ns.lcm.bpmn.flows.CamundaVariableNameConstants;
+import org.onap.so.etsi.nfvo.ns.lcm.bpmn.flows.GsonProvider;
+import org.onap.so.etsi.nfvo.ns.lcm.bpmn.flows.exceptions.NsRequestProcessingException;
+import org.onap.so.etsi.nfvo.ns.lcm.bpmn.flows.service.JobExecutorService;
+import org.onap.so.etsi.nfvo.ns.lcm.bpmn.flows.service.WorkflowQueryService;
+import org.onap.so.etsi.nfvo.ns.lcm.database.beans.JobStatusEnum;
+import org.onap.so.etsi.nfvo.ns.lcm.database.beans.NfvoJob;
+import org.onap.so.etsi.nfvo.ns.lcm.database.beans.NfvoNsInst;
+import org.onap.so.etsi.nfvo.ns.lcm.database.beans.State;
+import org.onap.so.etsi.nfvo.ns.lcm.model.CreateNsRequest;
+import org.onap.so.etsi.nfvo.ns.lcm.model.InlineResponse400;
+import org.onap.so.etsi.nfvo.ns.lcm.model.NsInstancesNsInstance;
+import org.onap.so.etsi.nfvo.ns.lcm.model.NsInstancesNsInstance.NsStateEnum;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.converter.json.GsonHttpMessageConverter;
+import org.springframework.test.web.client.MockRestServiceServer;
+import org.springframework.web.client.RestTemplate;
+import com.github.tomakehurst.wiremock.client.WireMock;
+import com.google.gson.Gson;
+
+/**
+ * @author Waqas Ikram (waqas.ikram@est.tech)
+ *
+ */
+public class CreateNsTaskTest extends BaseTest {
+    private static final String NSD_ID = UUID.randomUUID().toString();
+    private static final String NS_NAME = "CreateNetworkService-" + NSD_ID;
+    private static final String CREATE_NS_WORKFLOW_NAME = "CreateNs";
+
+    @Autowired
+    @Qualifier(ETSI_CATALOG_REST_TEMPLATE_BEAN)
+    private RestTemplate restTemplate;
+
+    @Autowired
+    private GsonProvider gsonProvider;
+
+    @Autowired
+    private JobExecutorService objUnderTest;
+
+    @Autowired
+    private WorkflowQueryService workflowQueryService;
+
+    private MockRestServiceServer mockRestServiceServer;
+
+    private Gson gson;
+
+    @Before
+    public void before() {
+        wireMockServer.resetAll();
+        final MockRestServiceServer.MockRestServiceServerBuilder builder = MockRestServiceServer.bindTo(restTemplate);
+        builder.ignoreExpectOrder(true);
+        mockRestServiceServer = builder.build();
+        gson = gsonProvider.getGson();
+        restTemplate.getMessageConverters().add(new GsonHttpMessageConverter(gson));
+    }
+
+    @After
+    public void after() {
+        wireMockServer.resetAll();
+        mockRestServiceServer.reset();
+    }
+
+    @Test
+    public void testCreateNsWorkflow_SuccessfullCase() throws InterruptedException {
+        final CreateNsRequest createNsRequest = getCreateNsRequest();
+
+        mockEtsiCatalogEndpoints();
+        mockAAIEndpoints(createNsRequest);
+
+        final NsInstancesNsInstance nsResponse =
+                objUnderTest.runCreateNsJob(createNsRequest, GLOBAL_CUSTOMER_ID, SERVICE_TYPE);
+        assertNotNull(nsResponse);
+        assertNotNull(nsResponse.getId());
+
+        final Optional<NfvoJob> optional = getJobByResourceId(createNsRequest.getNsdId());
+        assertTrue(optional.isPresent());
+        final NfvoJob nfvoJob = optional.get();
+
+        assertTrue(waitForProcessInstanceToFinish(nfvoJob.getProcessInstanceId()));
+
+        mockRestServiceServer.verify();
+        final HistoricProcessInstance historicProcessInstance =
+                getHistoricProcessInstance(nfvoJob.getProcessInstanceId());
+        assertNotNull(historicProcessInstance);
+
+        assertEquals(HistoricProcessInstance.STATE_COMPLETED, historicProcessInstance.getState());
+        assertTrue(databaseServiceProvider.isNsInstExists(createNsRequest.getNsName()));
+
+        final NfvoJob actualJob = optional.get();
+        assertEquals(JobStatusEnum.FINISHED, actualJob.getStatus());
+
+        assertEquals(NS_NAME, nsResponse.getNsInstanceName());
+        assertEquals(NsStateEnum.NOT_INSTANTIATED, nsResponse.getNsState());
+
+        final HistoricVariableInstance doesNsPackageExistsVar =
+                getVariable(nfvoJob.getProcessInstanceId(), "doesNsPackageExists");
+        assertNotNull(doesNsPackageExistsVar);
+        assertTrue((boolean) doesNsPackageExistsVar.getValue());
+
+        final HistoricVariableInstance doesNsInstanceExistsVar =
+                getVariable(nfvoJob.getProcessInstanceId(), "doesNsInstanceExists");
+        assertNotNull(doesNsInstanceExistsVar);
+        assertFalse((boolean) doesNsInstanceExistsVar.getValue());
+
+    }
+
+    @Test
+    public void testCreateNsWorkflow_FailsToGetNsPackage() throws InterruptedException {
+        final String nsdId = UUID.randomUUID().toString();
+        final String nsdName = NS_NAME + "-" + System.currentTimeMillis();
+        final CreateNsRequest createNsRequest = getCreateNsRequest(nsdId, nsdName);
+
+        mockRestServiceServer.expect(requestTo(ETSI_CATALOG_URL + "/nsd/v1/ns_descriptors/" + nsdId))
+                .andExpect(method(HttpMethod.GET)).andRespond(withStatus(HttpStatus.NOT_FOUND));
+
+        try {
+            objUnderTest.runCreateNsJob(createNsRequest, GLOBAL_CUSTOMER_ID, SERVICE_TYPE);
+            fail("runCreateNsJob should throw exception");
+        } catch (final Exception exception) {
+            assertEquals(NsRequestProcessingException.class, exception.getClass());
+        }
+
+        final Optional<NfvoJob> optional = getJobByResourceId(createNsRequest.getNsdId());
+        assertTrue(optional.isPresent());
+        final NfvoJob nfvoJob = optional.get();
+        assertEquals(JobStatusEnum.ERROR, nfvoJob.getStatus());
+
+        assertTrue(waitForProcessInstanceToFinish(nfvoJob.getProcessInstanceId()));
+
+        mockRestServiceServer.verify();
+        final HistoricProcessInstance historicProcessInstance =
+                getHistoricProcessInstance(nfvoJob.getProcessInstanceId());
+        assertNotNull(historicProcessInstance);
+
+        assertEquals(HistoricProcessInstance.STATE_COMPLETED, historicProcessInstance.getState());
+
+
+        final HistoricVariableInstance nsResponseVariable =
+                getVariable(nfvoJob.getProcessInstanceId(), CamundaVariableNameConstants.CREATE_NS_RESPONSE_PARAM_NAME);
+        assertNull(nsResponseVariable);
+
+        final Optional<InlineResponse400> problemDetailsOptional =
+                workflowQueryService.getProblemDetails(nfvoJob.getProcessInstanceId());
+        assertTrue(problemDetailsOptional.isPresent());
+
+        final InlineResponse400 problemDetails = problemDetailsOptional.get();
+        assertNotNull(problemDetails);
+        assertNotNull(problemDetails.getDetail());
+
+        final HistoricVariableInstance doesNsPackageExistsVar =
+                getVariable(nfvoJob.getProcessInstanceId(), "doesNsPackageExists");
+        assertNotNull(doesNsPackageExistsVar);
+        assertFalse((boolean) doesNsPackageExistsVar.getValue());
+        assertEquals("Unexpected exception occured while getting ns package using nsdId: " + nsdId,
+                problemDetails.getDetail());
+    }
+
+    @Test
+    public void testCreateNsWorkflow_FailsToFindJobUsingJobId() throws InterruptedException {
+        final String nsdId = UUID.randomUUID().toString();
+        final String nsdName = NS_NAME + "-" + System.currentTimeMillis();
+        final CreateNsRequest createNsRequest = getCreateNsRequest(nsdId, nsdName);
+
+        final String randomJobId = UUID.randomUUID().toString();
+        final ProcessInstance processInstance =
+                executeWorkflow(CREATE_NS_WORKFLOW_NAME, randomJobId, getVariables(randomJobId, createNsRequest));
+        assertTrue(waitForProcessInstanceToFinish(processInstance.getProcessInstanceId()));
+
+        mockRestServiceServer.verify();
+        final HistoricProcessInstance historicProcessInstance =
+                getHistoricProcessInstance(processInstance.getProcessInstanceId());
+        assertNotNull(historicProcessInstance);
+
+        assertEquals(HistoricProcessInstance.STATE_COMPLETED, historicProcessInstance.getState());
+
+        final HistoricVariableInstance nsResponseVariable = getVariable(processInstance.getProcessInstanceId(),
+                CamundaVariableNameConstants.CREATE_NS_RESPONSE_PARAM_NAME);
+
+        assertNull(nsResponseVariable);
+
+        final HistoricVariableInstance workflowExceptionVariable = getVariable(processInstance.getProcessInstanceId(),
+                CamundaVariableNameConstants.CREATE_NS_WORKFLOW_PROCESSING_EXCEPTION_PARAM_NAME);
+
+        final InlineResponse400 problemDetails = (InlineResponse400) workflowExceptionVariable.getValue();
+        assertNotNull(problemDetails);
+        assertNotNull(problemDetails.getDetail());
+        assertEquals("Unable to find job using job id: " + randomJobId, problemDetails.getDetail());
+
+    }
+
+    @Test
+    public void testCreateNsWorkflow_NsInstanceExistsInDb() throws InterruptedException {
+        final String nsdId = UUID.randomUUID().toString();
+        final String nsdName = NS_NAME + "-" + System.currentTimeMillis();
+        final CreateNsRequest createNsRequest = getCreateNsRequest(nsdId, nsdName);
+
+        databaseServiceProvider.saveNfvoNsInst(new NfvoNsInst().nsInstId(nsdId).name(createNsRequest.getNsName())
+                .nsPackageId(UUID.randomUUID().toString()).nsdId(nsdId).nsdInvariantId(nsdId)
+                .description(createNsRequest.getNsDescription()).status(State.INSTANTIATED)
+                .statusUpdatedTime(LocalDateTime.now()).globalCustomerId(GLOBAL_CUSTOMER_ID).serviceType(SERVICE_TYPE));
+
+        mockEtsiCatalogEndpoints(nsdId);
+
+        try {
+            objUnderTest.runCreateNsJob(createNsRequest, GLOBAL_CUSTOMER_ID, SERVICE_TYPE);
+            fail("runCreateNsJob should throw exception");
+        } catch (final Exception exception) {
+            assertEquals(NsRequestProcessingException.class, exception.getClass());
+        }
+
+        final Optional<NfvoJob> optional = getJobByResourceId(createNsRequest.getNsdId());
+        assertTrue(optional.isPresent());
+        final NfvoJob nfvoJob = optional.get();
+        assertEquals(JobStatusEnum.ERROR, nfvoJob.getStatus());
+
+        assertTrue(waitForProcessInstanceToFinish(nfvoJob.getProcessInstanceId()));
+
+        mockRestServiceServer.verify();
+        final HistoricProcessInstance historicProcessInstance =
+                getHistoricProcessInstance(nfvoJob.getProcessInstanceId());
+        assertNotNull(historicProcessInstance);
+
+        assertEquals(HistoricProcessInstance.STATE_COMPLETED, historicProcessInstance.getState());
+        assertTrue(databaseServiceProvider.isNsInstExists(createNsRequest.getNsName()));
+
+        final HistoricVariableInstance historicVariableInstance =
+                getVariable(nfvoJob.getProcessInstanceId(), CamundaVariableNameConstants.CREATE_NS_RESPONSE_PARAM_NAME);
+
+        assertNull(historicVariableInstance);
+
+        final Optional<InlineResponse400> problemDetailsOptional =
+                workflowQueryService.getProblemDetails(nfvoJob.getProcessInstanceId());
+
+        final InlineResponse400 problemDetails = problemDetailsOptional.get();
+        assertNotNull(problemDetails);
+        assertNotNull(problemDetails.getDetail());
+        assertTrue(problemDetails.getDetail().startsWith("Ns Instance already exists in database"));
+
+        final HistoricVariableInstance doesNsInstanceExistsVar =
+                getVariable(nfvoJob.getProcessInstanceId(), "doesNsInstanceExists");
+        assertNotNull(doesNsInstanceExistsVar);
+        assertTrue((boolean) doesNsInstanceExistsVar.getValue());
+
+    }
+
+    @Test
+    public void testCreateNsWorkflow_FailToCreateResouceInAai() throws InterruptedException {
+        final String nsdId = UUID.randomUUID().toString();
+        final String nsdName = NS_NAME + "-" + System.currentTimeMillis();
+        final CreateNsRequest createNsRequest = getCreateNsRequest(nsdId, nsdName);
+
+        mockEtsiCatalogEndpoints(nsdId);
+
+        final String modelEndpoint = getAiaServiceInstancelEndPoint(createNsRequest);
+        wireMockServer.stubFor(put(urlMatching(modelEndpoint)).willReturn(WireMock.serverError()));
+        wireMockServer.stubFor(get(urlMatching(modelEndpoint)).willReturn(WireMock.serverError()));
+
+        try {
+            objUnderTest.runCreateNsJob(createNsRequest, GLOBAL_CUSTOMER_ID, SERVICE_TYPE);
+            fail("runCreateNsJob should throw exception");
+        } catch (final Exception exception) {
+            assertEquals(NsRequestProcessingException.class, exception.getClass());
+        }
+        final Optional<NfvoJob> optional = getJobByResourceId(createNsRequest.getNsdId());
+        assertTrue(optional.isPresent());
+        final NfvoJob nfvoJob = optional.get();
+        assertEquals(JobStatusEnum.ERROR, nfvoJob.getStatus());
+
+        mockRestServiceServer.verify();
+        final HistoricProcessInstance historicProcessInstance =
+                getHistoricProcessInstance(nfvoJob.getProcessInstanceId());
+        assertNotNull(historicProcessInstance);
+
+        assertEquals(HistoricProcessInstance.STATE_COMPLETED, historicProcessInstance.getState());
+        assertTrue(databaseServiceProvider.isNsInstExists(createNsRequest.getNsName()));
+
+        final Optional<InlineResponse400> problemDetailsOptional =
+                workflowQueryService.getProblemDetails(nfvoJob.getProcessInstanceId());
+
+        final InlineResponse400 problemDetails = problemDetailsOptional.get();
+        assertNotNull(problemDetails);
+        assertEquals("Unable to Create Service Instance in AAI", problemDetails.getDetail());
+
+    }
+
+    private void mockAAIEndpoints(final CreateNsRequest createNsRequest) {
+        final String modelEndpoint = getAiaServiceInstancelEndPoint(createNsRequest);
+
+        wireMockServer.stubFor(put(urlMatching(modelEndpoint)).willReturn(ok()));
+        wireMockServer.stubFor(get(urlMatching(modelEndpoint)).willReturn(notFound()));
+    }
+
+    private String getAiaServiceInstancelEndPoint(final CreateNsRequest createNsRequest) {
+        return "/aai/v[0-9]+/business/customers/customer/" + GLOBAL_CUSTOMER_ID
+                + "/service-subscriptions/service-subscription/" + SERVICE_TYPE
+                + "/service-instances/service-instance/.*";
+    }
+
+    private void mockEtsiCatalogEndpoints(final String nsdId) {
+        mockRestServiceServer.expect(requestTo(ETSI_CATALOG_URL + "/nsd/v1/ns_descriptors/" + nsdId))
+                .andExpect(method(HttpMethod.GET))
+                .andRespond(withSuccess(gson.toJson(getNSPackageModel(NSD_ID)), MediaType.APPLICATION_JSON));
+    }
+
+    private void mockEtsiCatalogEndpoints() {
+        mockEtsiCatalogEndpoints(NSD_ID);;
+    }
+
+    private NsdInfo getNSPackageModel(final String nsdId) {
+        return new NsdInfo().id(nsdId).nsdId(nsdId).nsdInvariantId(NSD_INVARIANT_ID).nsdName("vcpe").nsdDesigner("ONAP")
+                .vnfPkgIds(Arrays.asList(GLOBAL_CUSTOMER_ID));
+    }
+
+    private CreateNsRequest getCreateNsRequest() {
+        return getCreateNsRequest(NSD_ID, NS_NAME);
+    }
+
+    private CreateNsRequest getCreateNsRequest(final String nsdId, final String nsName) {
+        return new CreateNsRequest().nsdId(nsdId).nsName(nsName);
+    }
+
+    private Map<String, Object> getVariables(final String jobId, final CreateNsRequest createNsRequest) {
+        final Map<String, Object> variables = new HashMap<>();
+        variables.put(CamundaVariableNameConstants.JOB_ID_PARAM_NAME, jobId);
+        variables.put(CamundaVariableNameConstants.CREATE_NS_REQUEST_PARAM_NAME, createNsRequest);
+        variables.put(CamundaVariableNameConstants.GLOBAL_CUSTOMER_ID_PARAM_NAME, GLOBAL_CUSTOMER_ID);
+        variables.put(CamundaVariableNameConstants.SERVICE_TYPE_PARAM_NAME, SERVICE_TYPE);
+
+        return variables;
+    }
+
+}