用参数化构造函数模拟最终类 [英] Mocking final class with parameterized constructor

问题描述

我的最后一堂课如下

public  class firstclass{

   private String firstmethod(){

       return new secondclass("params").somemethod();

}

}


public final class secondclass{

   secondclass(String params){

        //some code

}

public String somemethod(){

         // some code 
        return somevariable";
}
}

我必须在这里测试头等舱，所以我如下模拟了

I have to here test first class so I have mocked this as below

secondclass classMock = PowerMockito.mock(secondclass .class);
        PowerMockito.whenNew(secondclass .class).withAnyArguments().thenReturn(classMock);
Mockito.doReturn("test").when(classMock).somemethod();

但这不是嘲笑，我希望有人能帮助我吗?

But it is not mocking as I expected can anyone help me?

推荐答案

1. 方法firstclass.firstmethod()是私有方法.因此，请尝试通过调用该方法的公共方法来测试此方法.

1. The method firstclass.firstmethod() is private method. So try to test this method through public method in which it is getting called.

您可以使用@RunWith(PowerMockRunner.class)和@PrepareForTest(SecondClass.class)批注模拟SecondClass及其最终方法.

You can mock SecondClass and its final method using @RunWith(PowerMockRunner.class) and @PrepareForTest(SecondClass.class) annotations.

请在下面查看工作代码:

Please see below the working code:

import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mockito;
import org.powermock.api.mockito.PowerMockito;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;

@RunWith(PowerMockRunner.class)
@PrepareForTest(SecondClass.class)
public class FirstClassTest{


    @Before
    public void init() {

    }

    @After
    public void clear() {

    }

    @Test
    public void testfirstmethod() throws Exception{

        SecondClass classMock = PowerMockito.mock(SecondClass.class);
        PowerMockito.whenNew(SecondClass.class).withAnyArguments().thenReturn(classMock);
        Mockito.doReturn("test").when(classMock).somemethod();

        new FirstClass().firstmethod();
    }
}

使用的库:

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