@Test
public void testEventProcessor() {

    // setup event handler
    EventHandler eventHandler = new EventHandler();
    eventHandler.setName(UUID.randomUUID().toString());
    eventHandler.setActive(true);
    Map<String, String> taskToDomain = new HashMap<>();
    taskToDomain.put("*", "dev");
    Action startWorkflowAction = new Action();
    startWorkflowAction.setAction(Type.start_workflow);
    startWorkflowAction.setStart_workflow(new StartWorkflow());
    startWorkflowAction.getStart_workflow().setName("workflow_x");
    startWorkflowAction.getStart_workflow().setVersion(1);
    startWorkflowAction.getStart_workflow().setTaskToDomain(taskToDomain);
    eventHandler.getActions().add(startWorkflowAction);
    Action completeTaskAction = new Action();
    completeTaskAction.setAction(Type.complete_task);
    completeTaskAction.setComplete_task(new TaskDetails());
    completeTaskAction.getComplete_task().setTaskRefName("task_x");
    completeTaskAction.getComplete_task().setWorkflowId(UUID.randomUUID().toString());
    completeTaskAction.getComplete_task().setOutput(new HashMap<>());
    eventHandler.getActions().add(completeTaskAction);
    eventHandler.setEvent(event);
    when(metadataService.getAllEventHandlers()).thenReturn(Collections.singletonList(eventHandler));
    when(metadataService.getEventHandlersForEvent(event, true)).thenReturn(Collections.singletonList(eventHandler));
    when(executionService.addEventExecution(any())).thenReturn(true);
    when(queue.rePublishIfNoAck()).thenReturn(false);
    String id = UUID.randomUUID().toString();
    AtomicBoolean started = new AtomicBoolean(false);
    doAnswer((Answer<String>) invocation -> {
        started.set(true);
        return id;
    }).when(workflowExecutor).startWorkflow(eq(startWorkflowAction.getStart_workflow().getName()), eq(startWorkflowAction.getStart_workflow().getVersion()), eq(startWorkflowAction.getStart_workflow().getCorrelationId()), anyMap(), eq(null), eq(event), anyMap());
    AtomicBoolean completed = new AtomicBoolean(false);
    doAnswer((Answer<String>) invocation -> {
        completed.set(true);
        return null;
    }).when(workflowExecutor).updateTask(any());
    Task task = new Task();
    task.setReferenceTaskName(completeTaskAction.getComplete_task().getTaskRefName());
    Workflow workflow = new Workflow();
    workflow.setTasks(Collections.singletonList(task));
    when(workflowExecutor.getWorkflow(completeTaskAction.getComplete_task().getWorkflowId(), true)).thenReturn(workflow);
    WorkflowDef workflowDef = new WorkflowDef();
    workflowDef.setVersion(startWorkflowAction.getStart_workflow().getVersion());
    workflowDef.setName(startWorkflowAction.getStart_workflow().getName());
    when(metadataService.getWorkflowDef(any(), any())).thenReturn(workflowDef);
    SimpleActionProcessor actionProcessor = new SimpleActionProcessor(workflowExecutor, parametersUtils, jsonUtils);
    SimpleEventProcessor eventProcessor = new SimpleEventProcessor(executionService, metadataService, actionProcessor, eventQueues, jsonUtils, new TestConfiguration(), objectMapper);
    assertNotNull(eventProcessor.getQueues());
    assertEquals(1, eventProcessor.getQueues().size());
    String queueEvent = eventProcessor.getQueues().keySet().iterator().next();
    assertEquals(eventHandler.getEvent(), queueEvent);
    String eventProcessorQueue = eventProcessor.getQueues().values().iterator().next();
    assertEquals(queueURI, eventProcessorQueue);
    Uninterruptibles.sleepUninterruptibly(1, TimeUnit.SECONDS);
    assertTrue(started.get());
    assertTrue(completed.get());
    verify(queue, atMost(1)).ack(any());
    verify(queue, never()).publish(any());
}