Add VNF-Macro-Create and VNF-Macro-Delete

These macros enable creation and deletion of a vnf with vfmodules
for an existing service instance using building blocks.

Also:
- No longer force alaCarte=true for these use cases
- Fix broken vfModule sorting logic for baseFirst/baseLast
- Minor refactoring replacing String literals with constants

Issue-ID: SO-3635
Signed-off-by: Jozsef Csongvai <jozsef.csongvai@bell.ca>
Change-Id: I16975f3561f2d978dede20679927ac3531def900

7 files changed, 112 insertions, 92 deletions

diff --git a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/workflow/tasks/ExecuteBuildingBlockBuilder.java b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/workflow/tasks/ExecuteBuildingBlockBuilder.java
index 2138f489ee..813dc04ecd 100644
--- a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/workflow/tasks/ExecuteBuildingBlockBuilder.java
+++ b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/workflow/tasks/ExecuteBuildingBlockBuilder.java
@@ -26,6 +26,7 @@
 
 package org.onap.so.bpmn.infrastructure.workflow.tasks;
 
+import java.util.Comparator;
 import org.onap.so.bpmn.servicedecomposition.entities.BuildingBlock;
 import org.onap.so.bpmn.servicedecomposition.entities.ConfigurationResourceKeys;
 import org.onap.so.bpmn.servicedecomposition.entities.ExecuteBuildingBlock;
@@ -36,12 +37,12 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.stereotype.Component;
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.List;
 import java.util.Optional;
 import java.util.UUID;
 import java.util.stream.Collectors;
-import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.ASSIGNINSTANCE;
+import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.ACTIVATE_INSTANCE;
+import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.ASSIGN_INSTANCE;
 import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.CONFIGURATION;
 import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.CONTROLLER;
 import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.CREATE_INSTANCE;
@@ -94,15 +95,17 @@ public class ExecuteBuildingBlockBuilder {
                         true, false);
             } else if (orchFlow.getFlowName().contains(VFMODULE) || (orchFlow.getFlowName().contains(CONTROLLER)
                     && (VFMODULE).equalsIgnoreCase(orchFlow.getBpmnScope()))) {
-                List<Resource> vfModuleResourcesSorted;
-                if (requestAction.equals(CREATE_INSTANCE) || requestAction.equals(ASSIGNINSTANCE)
-                        || requestAction.equals("activateInstance")) {
-                    vfModuleResourcesSorted = sortVfModulesByBaseFirst(resourceList.stream()
-                            .filter(x -> WorkflowType.VFMODULE == x.getResourceType()).collect(Collectors.toList()));
+                Comparator<Resource> resourceComparator;
+                if (requestAction.equals(CREATE_INSTANCE) || requestAction.equals(ASSIGN_INSTANCE)
+                        || requestAction.equals(ACTIVATE_INSTANCE)) {
+                    resourceComparator = Resource.sortBaseFirst;
                 } else {
-                    vfModuleResourcesSorted = sortVfModulesByBaseLast(resourceList.stream()
-                            .filter(x -> WorkflowType.VFMODULE == x.getResourceType()).collect(Collectors.toList()));
+                    resourceComparator = Resource.sortBaseLast;
                 }
+                List<Resource> vfModuleResourcesSorted =
+                        resourceList.stream().filter(x -> WorkflowType.VFMODULE == x.getResourceType())
+                                .sorted(resourceComparator).collect(Collectors.toList());
+
                 for (Resource resource : vfModuleResourcesSorted) {
                     flowsToExecute.add(buildExecuteBuildingBlock(orchFlow, requestId, resource, apiVersion, resourceId,
                             requestAction, false, vnfType, workflowResourceIds, requestDetails, false, null, null,
@@ -169,30 +172,6 @@ public class ExecuteBuildingBlockBuilder {
         return executeBuildingBlock;
     }
 
-    protected List<Resource> sortVfModulesByBaseFirst(List<Resource> vfModuleResources) {
-        int count = 0;
-        for (Resource resource : vfModuleResources) {
-            if (resource.isBaseVfModule()) {
-                Collections.swap(vfModuleResources, 0, count);
-                break;
-            }
-            count++;
-        }
-        return vfModuleResources;
-    }
-
-    protected List<Resource> sortVfModulesByBaseLast(List<Resource> vfModuleResources) {
-        int count = 0;
-        for (Resource resource : vfModuleResources) {
-            if (resource.isBaseVfModule()) {
-                Collections.swap(vfModuleResources, vfModuleResources.size() - 1, count);
-                break;
-            }
-            count++;
-        }
-        return vfModuleResources;
-    }
-
     private void addBuildingBlockToExecuteBBList(List<ExecuteBuildingBlock> flowsToExecute, List<Resource> resourceList,
             WorkflowType workflowType, OrchestrationFlow orchFlow, String requestId, String apiVersion,
             String resourceId, String requestAction, String vnfType, WorkflowResourceIds workflowResourceIds,
diff --git a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/workflow/tasks/Resource.java b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/workflow/tasks/Resource.java
index 447f8994db..692d8bccdb 100644
--- a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/workflow/tasks/Resource.java
+++ b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/workflow/tasks/Resource.java
@@ -20,6 +20,8 @@
 
 package org.onap.so.bpmn.infrastructure.workflow.tasks;
 
+import java.util.Comparator;
+
 public class Resource {
 
     private String resourceId;
@@ -31,6 +33,9 @@ public class Resource {
     private String vfModuleCustomizationId;
     private String cvnfModuleCustomizationId;
 
+    public static final Comparator<Resource> sortBaseFirst = Comparator.comparingInt(x -> x.isBaseVfModule() ? 0 : 1);
+    public static final Comparator<Resource> sortBaseLast = Comparator.comparingInt(x -> x.isBaseVfModule() ? 1 : 0);
+
     public Resource(WorkflowType resourceType, String resourceId, boolean generated) {
         this.resourceId = resourceId;
         this.resourceType = resourceType;
diff --git a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/workflow/tasks/WorkflowAction.java b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/workflow/tasks/WorkflowAction.java
index 29206a6aa9..8a9289981d 100644
--- a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/workflow/tasks/WorkflowAction.java
+++ b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/workflow/tasks/WorkflowAction.java
@@ -26,13 +26,16 @@
 
 package org.onap.so.bpmn.infrastructure.workflow.tasks;
 
-import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.ASSIGNINSTANCE;
+import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.ASSIGN_INSTANCE;
 import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.CONTROLLER;
 import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.CREATE_INSTANCE;
+import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.DELETE_INSTANCE;
 import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.FABRIC_CONFIGURATION;
+import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.RECREATE_INSTANCE;
 import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.REPLACEINSTANCE;
 import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.REPLACEINSTANCERETAINASSIGNMENTS;
 import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.SERVICE;
+import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.UPDATE_INSTANCE;
 import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.WORKFLOW_ACTION_ERROR_MESSAGE;
 import java.io.IOException;
 import java.util.ArrayList;
@@ -279,14 +282,14 @@ public class WorkflowAction {
         List<Resource> resourceList = new ArrayList<>();
         List<Pair<WorkflowType, String>> aaiResourceIds = new ArrayList<>();
 
-        if (resourceType == WorkflowType.SERVICE) {
+        if (resourceType == WorkflowType.SERVICE || isVNFCreateOrDelete(resourceType, requestAction)) {
             resourceList = serviceEBBLoader.getResourceListForService(sIRequest, requestAction, execution,
                     serviceInstanceId, resourceId, aaiResourceIds);
         } else if (resourceType == WorkflowType.VNF && (REPLACEINSTANCE.equalsIgnoreCase(requestAction)
-                || ("recreateInstance".equalsIgnoreCase(requestAction)))) {
+                || (RECREATE_INSTANCE.equalsIgnoreCase(requestAction)))) {
             vnfEBBLoader.traverseAAIVnf(execution, resourceList, workflowResourceIds.getServiceInstanceId(),
                     workflowResourceIds.getVnfId(), aaiResourceIds);
-        } else if (resourceType == WorkflowType.VNF && "updateInstance".equalsIgnoreCase(requestAction)) {
+        } else if (resourceType == WorkflowType.VNF && UPDATE_INSTANCE.equalsIgnoreCase(requestAction)) {
             vnfEBBLoader.customTraverseAAIVnf(execution, resourceList, workflowResourceIds.getServiceInstanceId(),
                     workflowResourceIds.getVnfId(), aaiResourceIds);
         } else {
@@ -317,12 +320,12 @@ public class WorkflowAction {
         }
         // By default, enable homing at VNF level for CREATE_INSTANCE and ASSIGNINSTANCE
         if (resourceType == WorkflowType.SERVICE
-                && (requestAction.equals(CREATE_INSTANCE) || requestAction.equals(ASSIGNINSTANCE))
+                && (requestAction.equals(CREATE_INSTANCE) || requestAction.equals(ASSIGN_INSTANCE))
                 && resourceList.stream().anyMatch(x -> WorkflowType.VNF.equals(x.getResourceType()))) {
             execution.setVariable(HOMING, true);
             execution.setVariable("calledHoming", false);
         }
-        if (resourceType == WorkflowType.SERVICE && (requestAction.equalsIgnoreCase(ASSIGNINSTANCE)
+        if (resourceType == WorkflowType.SERVICE && (requestAction.equalsIgnoreCase(ASSIGN_INSTANCE)
                 || requestAction.equalsIgnoreCase(CREATE_INSTANCE))) {
             generateResourceIds(flowsToExecute, resourceList, serviceInstanceId);
         } else {
@@ -331,6 +334,11 @@ public class WorkflowAction {
         return flowsToExecute;
     }
 
+    private boolean isVNFCreateOrDelete(WorkflowType resourceType, String requestAction) {
+        return resourceType == WorkflowType.VNF
+                && (CREATE_INSTANCE.equalsIgnoreCase(requestAction) || DELETE_INSTANCE.equalsIgnoreCase(requestAction));
+    }
+
     private void setExecutionVariables(DelegateExecution execution, List<ExecuteBuildingBlock> flowsToExecute,
             List<String> flowNames) {
         execution.setVariable("flowNames", flowNames);
@@ -887,7 +895,7 @@ public class WorkflowAction {
     protected boolean isRequestMacroServiceResume(boolean aLaCarte, WorkflowType resourceType, String requestAction,
             String serviceInstanceId) {
         return (!aLaCarte && resourceType == WorkflowType.SERVICE
-                && (requestAction.equalsIgnoreCase(ASSIGNINSTANCE) || requestAction.equalsIgnoreCase(CREATE_INSTANCE))
+                && (requestAction.equalsIgnoreCase(ASSIGN_INSTANCE) || requestAction.equalsIgnoreCase(CREATE_INSTANCE))
                 && (serviceInstanceId != null && serviceInstanceId.trim().length() > 1)
                 && (bbInputSetupUtils.getAAIServiceInstanceById(serviceInstanceId) != null));
     }
diff --git a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/workflow/tasks/WorkflowActionConstants.java b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/workflow/tasks/WorkflowActionConstants.java
index b2cc89545b..38ba0077e2 100644
--- a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/workflow/tasks/WorkflowActionConstants.java
+++ b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/workflow/tasks/WorkflowActionConstants.java
@@ -32,16 +32,23 @@ public final class WorkflowActionConstants {
         throw new IllegalStateException("Utility class");
     }
 
-    public static final String USER_PARAM_SERVICE = "service";
+    public static final String ACTIVATE_INSTANCE = "activateInstance";
+    public static final String ASSIGN_INSTANCE = "assignInstance";
+    public static final String CONFIGURATION = "Configuration";
+    public static final String CONTROLLER = "Controller";
     public static final String CREATE_INSTANCE = "createInstance";
+    public static final String DEACTIVATE_INSTANCE = "deactivateInstance";
+    public static final String DELETE_INSTANCE = "deleteInstance";
     public static final String FABRIC_CONFIGURATION = "FabricConfiguration";
-    public static final String WORKFLOW_ACTION_ERROR_MESSAGE = "WorkflowActionErrorMessage";
-    static final String SERVICE = "Service";
-    static final String CONTROLLER = "Controller";
     public static final String NETWORKCOLLECTION = "NetworkCollection";
-    static final String CONFIGURATION = "Configuration";
-    public static final String ASSIGNINSTANCE = "assignInstance";
-    static final String REPLACEINSTANCE = "replaceInstance";
-    static final String VOLUMEGROUP = "VolumeGroup";
-    static final String REPLACEINSTANCERETAINASSIGNMENTS = "replaceInstanceRetainAssignments";
+    public static final String RECREATE_INSTANCE = "recreateInstance";
+    public static final String REPLACEINSTANCE = "replaceInstance";
+    public static final String REPLACEINSTANCERETAINASSIGNMENTS = "replaceInstanceRetainAssignments";
+    public static final String SERVICE = "Service";
+    public static final String UNASSIGN_INSTANCE = "unassignInstance";
+    public static final String UPDATE_INSTANCE = "updateInstance";
+    public static final String USER_PARAM_SERVICE = "service";
+    public static final String VOLUMEGROUP = "VolumeGroup";
+    public static final String WORKFLOW_ACTION_ERROR_MESSAGE = "WorkflowActionErrorMessage";
+
 }
diff --git a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/workflow/tasks/ebb/loader/ServiceEBBLoader.java b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/workflow/tasks/ebb/loader/ServiceEBBLoader.java
index 068c287ee7..6d02594c68 100644
--- a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/workflow/tasks/ebb/loader/ServiceEBBLoader.java
+++ b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/workflow/tasks/ebb/loader/ServiceEBBLoader.java
@@ -35,12 +35,16 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 import java.util.Optional;
+import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.ACTIVATE_INSTANCE;
+import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.DEACTIVATE_INSTANCE;
+import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.DELETE_INSTANCE;
+import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.UNASSIGN_INSTANCE;
 import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.WORKFLOW_ACTION_ERROR_MESSAGE;
 import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.CREATE_INSTANCE;
 import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.FABRIC_CONFIGURATION;
 import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.NETWORKCOLLECTION;
 import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.USER_PARAM_SERVICE;
-import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.ASSIGNINSTANCE;
+import static org.onap.so.bpmn.infrastructure.workflow.tasks.WorkflowActionConstants.ASSIGN_INSTANCE;
 
 
 @Component
@@ -77,7 +81,7 @@ public class ServiceEBBLoader {
         boolean containsService = false;
         List<Resource> resourceList = new ArrayList<>();
         List<Map<String, Object>> userParams = sIRequest.getRequestDetails().getRequestParameters().getUserParams();
-        if (requestAction.equalsIgnoreCase(ASSIGNINSTANCE)) {
+        if (requestAction.equalsIgnoreCase(ASSIGN_INSTANCE)) {
             // SERVICE-MACRO-ASSIGN will always get user params with a
             // service.
 
@@ -108,16 +112,15 @@ public class ServiceEBBLoader {
             if (!foundRelated(resourceList)) {
                 traverseCatalogDbService(execution, sIRequest, resourceList, aaiResourceIds);
             }
-        } else if (("activateInstance".equalsIgnoreCase(requestAction)
-                || "unassignInstance".equalsIgnoreCase(requestAction)
-                || "deleteInstance".equalsIgnoreCase(requestAction)
+        } else if ((ACTIVATE_INSTANCE.equalsIgnoreCase(requestAction)
+                || UNASSIGN_INSTANCE.equalsIgnoreCase(requestAction) || DELETE_INSTANCE.equalsIgnoreCase(requestAction)
                 || requestAction.equalsIgnoreCase("activate" + FABRIC_CONFIGURATION))) {
             // SERVICE-MACRO-ACTIVATE, SERVICE-MACRO-UNASSIGN, and
             // SERVICE-MACRO-DELETE
             // Will never get user params with service, macro will have
             // to query the SI in AAI to find related instances.
             traverseAAIService(execution, resourceList, resourceId, aaiResourceIds);
-        } else if ("deactivateInstance".equalsIgnoreCase(requestAction)) {
+        } else if (DEACTIVATE_INSTANCE.equalsIgnoreCase(requestAction)) {
             resourceList.add(new Resource(WorkflowType.SERVICE, "", false));
         }
         return resourceList;
diff --git a/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/workflow/tasks/ExecuteBuildingBlockBuilderTest.java b/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/workflow/tasks/ExecuteBuildingBlockBuilderTest.java
index fae2317c8d..cc3da9952a 100644
--- a/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/workflow/tasks/ExecuteBuildingBlockBuilderTest.java
+++ b/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/workflow/tasks/ExecuteBuildingBlockBuilderTest.java
@@ -41,43 +41,6 @@ public class ExecuteBuildingBlockBuilderTest {
     final private ExecuteBuildingBlockBuilder executeBBBuilder = new ExecuteBuildingBlockBuilder();
 
     @Test
-    public void sortVfModulesByBaseFirstTest() {
-        List<Resource> resources = new ArrayList<>();
-        Resource resource1 = new Resource(WorkflowType.VFMODULE, "111", false);
-        resource1.setBaseVfModule(false);
-        resources.add(resource1);
-        Resource resource2 = new Resource(WorkflowType.VFMODULE, "222", false);
-        resource2.setBaseVfModule(false);
-        resources.add(resource2);
-        Resource resource3 = new Resource(WorkflowType.VFMODULE, "333", false);
-        resource3.setBaseVfModule(true);
-        resources.add(resource3);
-
-        List<Resource> result = executeBBBuilder.sortVfModulesByBaseFirst(resources);
-        assertEquals("333", result.get(0).getResourceId());
-        assertEquals("222", result.get(1).getResourceId());
-        assertEquals("111", result.get(2).getResourceId());
-    }
-
-    @Test
-    public void sortVfModulesByBaseLastTest() {
-        List<Resource> resources = new ArrayList<>();
-        Resource resource1 = new Resource(WorkflowType.VFMODULE, "111", false);
-        resource1.setBaseVfModule(true);
-        resources.add(resource1);
-        Resource resource2 = new Resource(WorkflowType.VFMODULE, "222", false);
-        resource2.setBaseVfModule(false);
-        resources.add(resource2);
-        Resource resource3 = new Resource(WorkflowType.VFMODULE, "333", false);
-        resource3.setBaseVfModule(false);
-        resources.add(resource3);
-        List<Resource> result = executeBBBuilder.sortVfModulesByBaseLast(resources);
-        assertEquals("333", result.get(0).getResourceId());
-        assertEquals("222", result.get(1).getResourceId());
-        assertEquals("111", result.get(2).getResourceId());
-    }
-
-    @Test
     public void verifyLackOfNullPointerExceptionForNullResource() {
         ExecuteBuildingBlock result = null;
         try {
diff --git a/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/workflow/tasks/ResourceTest.java b/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/workflow/tasks/ResourceTest.java
new file mode 100644
index 0000000000..5e3afa16ac
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/test/java/org/onap/so/bpmn/infrastructure/workflow/tasks/ResourceTest.java
@@ -0,0 +1,55 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2021 Bell Canada. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.so.bpmn.infrastructure.workflow.tasks;
+
+import static org.junit.Assert.assertEquals;
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+import org.junit.Test;
+
+public class ResourceTest {
+
+    @Test
+    public void testBaseFirstComparator() {
+        Resource r1 = new Resource(null, "1", false);
+        Resource r2 = new Resource(null, "2", false);
+        r2.setBaseVfModule(true);
+
+        List<Resource> sorted =
+                Arrays.asList(r1, r2).stream().sorted(Resource.sortBaseFirst).collect(Collectors.toList());
+
+        assertEquals("2", sorted.get(0).getResourceId());
+    }
+
+    @Test
+    public void testBaseLastComparator() {
+        Resource r1 = new Resource(null, "1", false);
+        Resource r2 = new Resource(null, "2", false);
+        r1.setBaseVfModule(true);
+
+        List<Resource> sorted =
+                Arrays.asList(r1, r2).stream().sorted(Resource.sortBaseLast).collect(Collectors.toList());
+
+        assertEquals("1", sorted.get(1).getResourceId());
+    }
+
+}