Powermock 模拟 void 方法抛出错误

本文介绍了Powermock 模拟 void 方法抛出错误的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我正在使用 Powermockito，mockito 和 TestNG.我的测试类扩展了 PowerMockTestCase.我想模拟一个 void 方法.为此，我使用了以下示例语法，

I am using Powermockito, mockito with TestNG. My test class extends PowerMockTestCase. I want to mock a void method. For that I used following sample syntax,

@PrepareForTest(TestClass.class) class Sample extends PowerMockTestCase{ @BeforeClass public void beforeClass(){ TestClass obj = PowerMockito.spy(TestClass.getInstance()); PowerMockito.doNothing().when(obj).voidMethodName(Matchers.any(Type1.class), Matchers.anyString(), Matchers.any(Type2.class)); }

当我给出这个时，我得到:

When I give this, I get :

FAILED CONFIGURATION: @BeforeClass beforeClass org.mockito.exceptions.misusing.UnfinishedStubbingException: Unfinished stubbing detected here: -> at org.powermock.api.mockito.internal.PowerMockitoCore.doAnswer(PowerMockitoCore.java:36) E.g. thenReturn() may be missing. Examples of correct stubbing: when(mock.isOk()).thenReturn(true); when(mock.isOk()).thenThrow(exception); doThrow(exception).when(mock).someVoidMethod(); Hints: 1. missing thenReturn() 2. you are trying to stub a final method, you naughty developer!

你能告诉我我在这里缺少什么吗?

Can you please let me know what I am missing here?

谢谢

推荐答案

如果void方法不是final方法，就不用PowerMockito了！另外，我不明白你为什么要嘲笑doNoting()".如果你有一个默认的模拟行为，当调用 void 方法时抛出异常，并且对于特定的测试用例你想要覆盖这个行为时，这将被使用.Ib 你的情况，会完全删除这条线.

If the void method is not a final method, you do not need to use PowerMockito! Also, I don't see why you would mock "doNoting()". This would be used if you had a default mocking behavior, throwing an exception when the void method is called, and when for a specific test case you would want to override this behavior. Ib your case, would remove this line completely.