使用PowerMockito,如何使用一组特定的参数来验证构造函数



注意:预计那些想指出的不良设计的代码构造了内部对象的代码,而不是通过依赖性注入或工厂,这些代码很容易被模拟;我正在处理旧版代码的编写测试,其中将代码重构为更现代的设计不是一个选择。

我有一个命令方法,即执行时,将在类MyobjectWrapper中构造三个对象,该对象取决于另一个类MyObject。在测试中,这两个类别和6个对象都是模拟的。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称为3次:

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

但是,我需要确认构造函数是被调用的,这三个通过了参数。可以这样做吗?

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

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