单元测试Amazon SWF子工作流程

Question

我有一个父工作流(ParentWorkflow)调用子工作流(ChildWorkflow),我正在尝试测试该调用.

父代码看起来像这样:

public class ParentWorkflow {
    private final ChildWorkflowClientFactory childWorkflowClientFactory =
            new ChildWorkflowClientFactoryImpl();

    public void runWorkflow() {
        new TryCatch() {
            @Override
            protected void doTry() throws Throwable {
                Promise<Void> workflowFinished = childWorkflowClient.childWorkflow(x);
                ...
            }
        ...
    }
}

我想模拟 childWorkflowClient.childWorkflow(x) 调用,但是当我连接单元测试时,我似乎没有注入客户端工厂的选项,单元测试代码如下所示:

@Rule
public WorkflowTest workflowTest = new WorkflowTest();
@Mock
private Activities mockActivities;

private ParentWorkflowClientFactory workflowFactory
        = new ParentWorkflowClientFactoryImpl();

@Before
public void setUp() throws Exception {
    // set up mocks
    initMocks(this);

    workflowTest.addActivitiesImplementation(mockActivities);
    workflowTest.addWorkflowImplementationType(ParentWorkflowImpl.class);
    workflowTest.addWorkflowImplementationType(ChildWorkflowImpl.class);

我似乎无法将任何内容传递到工作流实现类中,还有另一种方法可以模拟子工作流吗？

Answer 1

您可以在不使用workflowTest的情况下直接测试工作流代码来模拟其依赖项:

/**
 * Rule is still needed to initialize asynchronous framework.
 */
@Rule
public WorkflowTest workflowTest = new WorkflowTest();
@Mock
private ActivitiesClient mockActivities;
@Mock
private BWorkflowClientFactory workflowFactory;


@Before
public void setUp() throws Exception {
  // set up mocks
  initMocks(this);
}

@Test
public void myTest() {
  AWorkflowImpl w = new AWorkflowImpl(workflowFactory);
  w.execute(); // whatever execute method of the workflow
}

此方法允许测试封装在其他对象中的部分工作流,而不是整个工作流.

如果出于某种原因(例如,您使用的是其他测试框架而不是JUnit),您不希望依赖于WorkflowTest @Rule异步代码总是可以使用AsyncScope执行:

@Test
public void asyncTest() {
   AsyncScope scope = new AsyncScope() {
      protected void doAsync() {
         // Any asynchronous code
         AWorkflowImpl w = new AWorkflowImpl(workflowFactory);
         w.execute(); // whatever execute method of the workflow
      }
   };
   scope.eventLoop();
}