Java 方法实例化与类级实例化的junit测试

代码发布在

现在，当我试图为 第一种情况下，我得到的错误

“需要重播B类”

但同样的junit也适用于第二个案例

我的junit是

@RunWith(PowerMockRunner.class)
public class TestClass {

    @Test
    public void testDoSomeThing() {
        B b = createMock(B.class)
        expectNew(b.CallMe()).andReturns(xxx)
        A a=new A();

        replayAll();
        a.doSomething();
        verifyAll();
    }
}

你忘了加上

@PrepareForTest({A.class, B.class})

此批注必须包含您正在模拟的类以及将使用这些模拟的类。

以下是一个使用with的解决方案：

TestClass.java

import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.api.easymock.PowerMock;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;

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

    @Test
    public void testDoSomeThing() throws Exception {
        /* Setup */
        B bMock = PowerMock.createMock(B.class);

        /* Mocks */
        PowerMock.expectNew(B.class).andReturn(bMock).atLeastOnce();
        bMock.callMe();

        /* Activate */
        PowerMock.replayAll();

        /* Test */
        A cut = new A();
        cut.doSomething();

        /* Asserts */
        PowerMock.verifyAll();
    }
}

public class A {

    B b = new B();

    public void doSomething() {
        b.callMe();
    }
}

public class B {

    public void callMe() {

    }
}

A.java

import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.api.easymock.PowerMock;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;

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

    @Test
    public void testDoSomeThing() throws Exception {
        /* Setup */
        B bMock = PowerMock.createMock(B.class);

        /* Mocks */
        PowerMock.expectNew(B.class).andReturn(bMock).atLeastOnce();
        bMock.callMe();

        /* Activate */
        PowerMock.replayAll();

        /* Test */
        A cut = new A();
        cut.doSomething();

        /* Asserts */
        PowerMock.verifyAll();
    }
}

public class A {

    B b = new B();

    public void doSomething() {
        b.callMe();
    }
}

public class B {

    public void callMe() {

    }
}

B.java

import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.api.easymock.PowerMock;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;

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

    @Test
    public void testDoSomeThing() throws Exception {
        /* Setup */
        B bMock = PowerMock.createMock(B.class);

        /* Mocks */
        PowerMock.expectNew(B.class).andReturn(bMock).atLeastOnce();
        bMock.callMe();

        /* Activate */
        PowerMock.replayAll();

        /* Test */
        A cut = new A();
        cut.doSomething();

        /* Asserts */
        PowerMock.verifyAll();
    }
}

public class A {

    B b = new B();

    public void doSomething() {
        b.callMe();
    }
}

public class B {

    public void callMe() {

    }
}

---

你能发布你的JUnit测试吗？你在哪里看到这个错误？这就是你得到的字符串吗？@all粘贴了我的junit类在这里发布之前先格式化你的代码，帮你自己一个忙。java.lang.IllegalStateException:必须重播类xxxx才能得到配置的期望值。在org.powermock.api.easymock.internal.invocationcontrol.NewInvocationControlImpl.invoke（NewInvocationControlImpl.java:60）在org.powermock.core.MockGateway.newInstanceCall（MockGateway.java:169）上，这正是我得到的堆栈跟踪。谢谢。