使用 PowerMockito 如何使用一组特定的参数验证调用了构造函数

Question

注意：预料到那些想要指出在其中构建对象的代码的糟糕设计，而不是通过依赖注入或工厂，这很容易被嘲笑；我正在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，当它执行时会在 class MyObjectWrapper 中构造三个对象，这依赖于另一个 class MyObject。在测试中，这两个 classes 和 6 个对象都被模拟了。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));

但是我需要确认调用了构造函数，并传入了三个参数。可以这样做吗？

Answer 1

PowerMockito.html#verifyNew returns a ConstructorArgumentsVerification, so use the returned object, see ConstructorArgumentsVerification javadoc

使用 PowerMockito 如何使用一组特定的参数验证调用了构造函数

Using PowerMockito how do I verify a constructor was called, with a specific set of arguments

java

mocking

powermock