使用PowerMockito如何使用一组特定参数验证是否调用了构造函数

时间:2017-12-18 11:39:09

标签: java mocking powermock

注意:期待那些想要指出在其中构造对象的代码的糟糕设计,而不是通过依赖注入或工厂,这些很容易被嘲笑;我正在处理为遗留代码编写测试,将代码重构为更现代的设计不是一种选择。

我有一个命令方法,它在执行时会在MyObjectWrapper类中构造三个对象,它依赖于另一个类MyObject。在测试中,这两个类和6个对象都被模拟了。请考虑以下代码:

@RunWith(PowerMockRunner.class)
@PrepareForTest(MyCommand.class)
public class MyCommandTest {

    @Mock public MyObject objectOne;
    @Mock public MyObject objectTwo;
    @Mock public MyObject objectThree;

    @Mock public MyObjectWrapper wrapperOne;
    @Mock public MyObjectWrapper wrapperTwo;
    @Mock public MyObjectWrapper wrapperThree;

    private MyCommand command;

    @Before public void beforeEach() {
        command = new MyCommand();
        MockitoAnnotations.initMocks(this);
        initialiseWrapper(wrapperOne, objectOne, true, false);
        initialiseWrapper(wrapperTwo, objectTwo, false, false);
        initialiseWrapper(wrapperThree, objectThree, true, true);
    }

    private void initialiseWrapper(MyObjectWrapper wrapperMock, MyObject objMock, boolean option1, boolean option2) {
        wrapperMock = PowerMockito.mock(MyObjectWrapper.class);
        PowerMockito.whenNew(MyObjectWrapper.class)
            .withParameters(MyObject.class, Boolean.class, Boolean.class)
            .withArguments(objMock, option1, option2)
            .thenReturn(wrapperMock);
    }

    @Test public void testConstructoresCalled() throws Exception {
        command.execute();

        VERIFY constructor with arguments: objectOne, true, false
        VERIFY constructor with arguments: objectTwo, false, false
        VERIFY constructor with arguments: objectThree, true, true
    }
}

我知道我可以确认构造函数被调用了3次:

PowerMockito.verifyNew(MyObjectWrapper.class, times(3));

但是我需要确认构造函数被调用,其中三个传入参数。有可能这样做吗?

1 个答案:

答案 0 :(得分:0)

PowerMockito.html#verifyNew返回ConstructorArgumentsVerification,因此请使用返回的对象,请参阅ConstructorArgumentsVerification javadoc