PowerMock in UnitTest

PowerMock单元测试详解

最新推荐文章于 2024-07-30 09:51:47 发布

tony_elizabeth

最新推荐文章于 2024-07-30 09:51:47 发布

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分类专栏： Java 文章标签：测试

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本文详细介绍了使用PowerMock进行单元测试的方法与步骤，包括@RunWith注解的使用、@PrepareForTest注解的作用、如何创建Mock对象及设置期望行为等关键环节，并通过具体的代码示例帮助读者理解PowerMock的工作原理。

1. @RunWith(PowerMockRunner.class)
//org.powermock.modules.junit4.PowerMockRunner;

2. @PrepareForTest({clazz})
//Only the Class to test

3. PowerMock.createMock(clazz)
//Mock class

4. expect
PowerMock.expectNew // for new object
EasyMock.expect().addReturn(object).anyTimes();

5. Replay //Log all mock object and method
 PowerMock.replayAll(stub);

6. Call test method

7. PowerMock.verifyAll(); //Verify whether above expect has been called

8. Assert

[b]Inteceptor:[/b]

1. @MockPolicy(AAA.class)

2. public class AAA implements PowerMockPolicy {

    public void applyClassLoadingPolicy(MockPolicyClassLoadingSettings settings) {}

    public void applyInterceptionPolicy(MockPolicyInterceptionSettings settings) {
         Method[] methods  = Whitebox.getMethods(BBB.class, "ccc");
         EEE eee= PowerMock.createMock(eee.class);
         for(Method method : methods) {
             settings.stubMethod(method, eee);
         }
    }

}