### Question:
ControllerExecution { public void setControllerActorScopeAction(BuildingBlockExecution execution) { ExecuteBuildingBlock executeBuildingBlock = execution.getVariable(BUILDING_BLOCK); BuildingBlock buildingBlock = executeBuildingBlock.getBuildingBlock(); String scope = Optional.ofNullable(buildingBlock.getBpmnScope()).orElseThrow( () -> new NullPointerException("BPMN Scope is NULL in the orchestration_flow_reference table ")); String action = Optional.ofNullable(buildingBlock.getBpmnAction()).orElseThrow( () -> new NullPointerException("BPMN Action is NULL in the orchestration_flow_reference table ")); String controllerActor; try { if (String.valueOf(scope).equals("pnf")) { Pnf pnf = getPnf(execution); String pnfModelUUID = pnf.getModelInfoPnf().getModelCustomizationUuid(); PnfResourceCustomization pnfResourceCustomization = catalogDbClient.getPnfResourceCustomizationByModelCustomizationUUID(pnfModelUUID); controllerActor = Optional.ofNullable(pnfResourceCustomization.getControllerActor()).orElse("APPC"); execution.setVariable(MSO_REQUEST_ID, execution.getGeneralBuildingBlock().getRequestContext().getMsoRequestId()); execution.setVariable(PRC_BLUEPRINT_VERSION, pnfResourceCustomization.getBlueprintVersion()); execution.setVariable(PRC_BLUEPRINT_NAME, pnfResourceCustomization.getBlueprintName()); } else { GenericVnf genericVnf = getGenericVnf(execution); String modelUuid = genericVnf.getModelInfoGenericVnf().getModelCustomizationUuid(); VnfResourceCustomization vnfResourceCustomization = catalogDbClient.getVnfResourceCustomizationByModelCustomizationUUID(modelUuid); controllerActor = Optional.ofNullable(vnfResourceCustomization.getControllerActor()).orElse("APPC"); } execution.setVariable(SCOPE, scope); execution.setVariable(ACTION, action); execution.setVariable(CONTROLLER_ACTOR, controllerActor); logger.debug("Executing Controller Execution for ControllerActor: {}, Scope: {} , Action: {}", controllerActor, scope, action); } catch (Exception ex) { logger.error("An exception occurred while fetching Controller Actor,Scope and Action ", ex); exceptionUtil.buildAndThrowWorkflowException(execution, 7000, ex); } }  void setControllerActorScopeAction(BuildingBlockExecution execution); void selectBB(BuildingBlockExecution execution);  }### Answer:
@Test public void testSetControllerActorScopeAction() throws Exception { doReturn(vnfResourceCustomization).when(catalogDbClient).getVnfResourceCustomizationByModelCustomizationUUID( genericVnf.getModelInfoGenericVnf().getModelCustomizationUuid()); controllerExecution.setControllerActorScopeAction(execution); assertEquals(TEST_SCOPE, execution.getVariable("scope")); assertEquals(TEST_ACTION, execution.getVariable("action")); assertEquals(TEST_CONTROLLER_ACTOR, execution.getVariable("actor")); }