Mockito2 探索

简介

核心元素

• 将mock的底层引擎CGLIB 更改为 ByteBuddy

• 为JAVA8做准备

• Mockito的Junit runner 和 rule规则器 可以探测不用stubs

// detect unused stubs
@RunWith(MockitoJUnitRunner.class)

// don't detect, old behaviour
@RunWith(MockitoJUnitRunner.Silent.class)

or with the rule

// detect unused stubs
@Rule 
public MockitoRule mrule = MockitoJUnit.rule();

// don't warn user about misusage, old behaviour
@Rule 
public MockitoRule mrule = MockitoJUnit.rule().silent();

• 对于框架的整合者或高级用户，提供新的APIorg.mockito.listeners.MockitoListener来探测无用的sutbs

• 新的校验控制器支持懒校验Lazy verification

@Rule
public VerificationCollector collector = MockitoJUnit.collector();

在一个测试方法中，所有的校验都会被执行并报告出来，即使校验报错

IMethods methods = mock(IMethods.class);
// Both methods are not called, but will be reported at once
verify(methods).simpleMethod();
verify(methods).byteReturningMethod();

默认的非懒校验的方式，会在simpleMethod停止校验，并不会报告未进行校验的方法byteReturningMethod

• More Answers

1. Introducing Answers.RETURNS_SELF, which should be useful to mock builders
2. Java 8 friendly answers AdditionalAnswers.answer(arg1 -> arg1.toString())

• 改善BDDMockito的API

BDDMockito.then(mock).should(inOrder).doSomething();
BDDMockito.then(mock).shouldHaveZeroInteractions();
BDDMockito.then(person).shouldHaveNoMoreInteractions();

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地心历险

揭示底层的原理

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实战

实际使用中常用的东西

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参考资料

What’s new in Mockito2