RunWith(PowerMockRunner.class) 不适用于包注释

问题描述

我正在尝试让 RunWith(PowerMockRunner.class) 使用我现有的包注释.

I am trying to have RunWith(PowerMockRunner.class) working with my existing package annotation.

版本:

powermock 1.4.12 模拟 1.9.0 junit 4.8.2

powermock 1.4.12 mockito 1.9.0 junit 4.8.2

package-info.java//这是包注解

@TestAnnotation(version="1.0")
package com.smin.dummy;

TestAnnotation.java//这是包com.smin.dummy"的元数据注释类

TestAnnotation.java // this is the the metadata annotation class for package "com.smin.dummy"

package com.smin.dummy;

import java.lang.annotation.*;

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.PACKAGE)
public @interface TestAnnotation {
  String version();
}

A.java

package com.smin.dummy;

public class A {
    private static Package myPackage;
    private static TestAnnotation version;

    static {
      myPackage = TestAnnotation.class.getPackage();
      version = myPackage.getAnnotation(TestAnnotation.class);
     }

    public static String getVersion() {
        return version.version();
    }
}

MockA.java

package com.smin.dummy;


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

import com.smin.dummy.A;

@RunWith(PowerMockRunner.class) //comment out this line to see the difference
@PrepareForTest(A.class)
public class MockA {
@Test
public void test_mocked() throws Throwable {
    String thisVersion = A.getVersion();
    System.out.println(thisVersion);
}
}

在unitest MockA.java中，如果我不使用RunWith(PowerMockRunner.class)，我会打印thisVersion0.1 符合预期.但是加入RunWith(PowerMockRunner.class)后，thisVersion变成了null.我怀疑 PowerMockRunner 在这里对包注释做了一些有趣的事情，有人知道吗?在下面查看我的代码的迷你版本:

In the unitest MockA.java, if I don't use RunWith(PowerMockRunner.class), I will get the thisVersion printed 0.1 as expected. But after adding RunWith(PowerMockRunner.class), thisVersion turns into null. I suspect PowerMockRunner is doing some funny thing with the package annotation here, anybody has any idea? see the mini version of my code below:

推荐答案

基于@Alban 在评论中的侦查，看起来将此注释添加到您的测试用例应该可以规避该问题:

Building on @Alban's sleuthing in the comments, it looks like adding this annotation to your test case should circumvent the problem:

@PowerMockIgnore("com.smin.dummy.TestAnnotation")

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