Mockito - 验证方法有什么作用?

问题描述

假设我有以下伪类测试代码:

Let's say i have the following psuedo like test code:

 //Let's import Mockito statically so that the code looks clearer
 import static org.mockito.Mockito.*;

 //mock creation
 List mockedList = mock(List.class);

 //using mock object
 mockedList.add("one");
 mockedList.clear();

 //what do these two verify methods do ?
 verify(mockedList).add("one");
 verify(mockedList).clear();

我一直显示测试通过但我不知道验证是什么意思?它到底在验证什么?我知道我模拟了一个 add 和 clear 调用，但是这两个 verify 调用是做什么的?

I keep showing the test passed but i dont know what the verify means ? what is it verifying exactly ? I understand that i mocked a call to add and clear but what does the two verify calls do ?

推荐答案

Mockito.verify(MockedObject).someMethodOnTheObject(someParametersToTheMethod);验证您在模拟对象上调用的方法确实被调用.如果没有调用它们，或者使用错误的参数调用它们，或者调用错误的次数，它们将无法通过您的测试.

Mockito.verify(MockedObject).someMethodOnTheObject(someParametersToTheMethod); verifies that the methods you called on your mocked object are indeed called. If they weren't called, or called with the wrong parameters, or called the wrong number of times, they would fail your test.

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