Powermock构造函数模拟对实例化对象没有影响

Question

    Class  A{

    B objB = new B();
    objB.someBMethod();

    }

    Class B{

    public void someBMethof(){

    C objC = new C();

    }
    }

    class C{
    int a=1;
    public C(){}
    public C(int v){
    a=v;
    }
    }

@RunWith( PoswerMockRunner.class )
@PrepareForTest({ A.class, B.class, C.class})
Class TestApp{

    @Mock
    C mockC;

    PowerMockito.whenNew( C.class ).withNoArguments().thenReturn(mockC);

}

上面的代码捕获了我想要做的事情.但是whenNew()似乎没有工作,当我尝试debuggin时,创建的C对象不是mock.不知道发生了什么事.一些指针将非常感激.谢谢

Answer 1

你提供了一些代码,谢谢.但下一次,考虑发布sscce(正确(可编译)示例).

我尝试(并修复你的代码),它的工作原理.这是我的代码版本:

public class A {

    public int someAMethod() {
        B objB = new B();
        return objB.someBMethod();
    }
}

public class B {

    public int someBMethod() {
        C objC = new C();
        return objC.getA();
    }
}

import static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.when;

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

@RunWith(PowerMockRunner.class)
@PrepareForTest({ A.class, B.class, C.class })
public class TestApp {

    @Mock
    C mockC;

    @Test
    public void shoudlReturnTheCValue() throws Exception {
        when(mockC.getA()).thenReturn(666);
        PowerMockito.whenNew(C.class).withNoArguments().thenReturn(mockC);
        assertEquals(666, new A().someAMethod());
    }
}

我已经配置了一个具有以下依赖项的maven项目:

<dependency>
    <groupId>org.powermock</groupId>
    <artifactId>powermock-api-mockito</artifactId>
    <version>1.5</version>
    <scope>test</scope>
</dependency>
<dependency>
    <groupId>org.powermock</groupId>
    <artifactId>powermock-module-junit4</artifactId>
    <version>1.5</version>
    <scope>test</scope>
</dependency>
<dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
    <version>4.11</version>
    <scope>test</scope>
</dependency>
<dependency>
    <groupId>org.mockito</groupId>
    <artifactId>mockito-all</artifactId>
    <version>1.9.5</version>
    <scope>test</scope>
</dependency>