使用 Mockito，我如何验证一个方法是用某个参数调用的?

2022-01-08 00:00:00 mocking mockito java

我正在使用 Mockito 1.9.0.我将如何验证一个方法是否只被调用了一次，并且传递给它的一个字段是否包含某个值?在我的 JUnit 测试中，我有

I'm using Mockito 1.9.0. How would i verify that a method got called exactly once, and that one of the fields passed to it contained a certain value? In my JUnit test, I have

@Before
public void setupMainProg() { 
    // Initialize m_orderSvc, m_opportunitySvc, m_myprojectOrgSvc
    ...
    m_prog = new ProcessOrdersWorker(m_orderSvc, m_opportunitySvc, m_myprojectOrgSvc);
}   // setupMainProg

@Test
public void testItAll() throws GeneralSecurityException, IOException { 
    m_prog.work();  
}

方法work"调用方法m_orderSvc"(传递给对象的参数之一).m_orderSvc"又包含一个成员字段m_contractsDao".我想验证m_contractsDao.save"是否被调用了一次，并且传递给它的参数是否包含某个值.

The method "work" calls a method of "m_orderSvc" (one of the arguments passed in to the object). "m_orderSvc," in turn contains a member field, "m_contractsDao". I want to verify that "m_contractsDao.save" got called exactly once and that the argument passed to it contains a certain value.

这可能有点令人困惑.让我知道如何澄清我的问题，我很乐意这样做.

This may be a little confusing. Let me know how I can clarify my question and I'm happy to do so.

推荐答案

首先你需要创建一个m_contractsDao并进行设置.假设类是 ContractsDao:

First you need to create a mock m_contractsDao and set it up. Assuming that the class is ContractsDao:

ContractsDao mock_contractsDao = mock(ContractsDao.class);
when(mock_contractsDao.save(any(String.class))).thenReturn("Some result");

然后将 mock 注入 m_orderSvc 并调用您的方法.

Then inject the mock into m_orderSvc and call your method.

m_orderSvc.m_contractsDao = mock_contractsDao;
m_prog = new ProcessOrdersWorker(m_orderSvc, m_opportunitySvc, m_myprojectOrgSvc);
m_prog.work();

最后，验证 mock 是否被正确调用:

Finally, verify that the mock was called properly:

verify(mock_contractsDao, times(1)).save("Parameter I'm expecting");

相关文章