在 junit 中断言 arrayList 内容时出现断言错误

Question

 @Test
    public void testAchievementsSize(){
        Player player = getPlayer();
        List<Achievement> playerAchievements = achievementManager.checkForPlayerAchievements(preparePlayerStatistics(player));
        assertEquals(3,playerAchievements.size());
        assertThat(playerAchievements, containsInAnyOrder(new BruiserAward(),new SharpShooterAward(),new FastKillerAward()));

    }

导致以下错误：

java.lang.AssertionError: 
Expected: iterable over [<Bruiser>, <Sharp shooter>, <Fast Killer>] in any order
     but: Not matched: <Bruiser>

    at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:20)
    at org.junit.Assert.assertThat(Assert.java:956)
    at org.junit.Assert.assertThat(Assert.java:923)

Hashcode 和 equals 被覆盖如下：

@Override
public int hashCode() {
    return this.getName().hashCode();
}

@Override
public boolean equals(Object obj) {

if(obj != null &&  obj instanceof Achievement){
    Achievement achievement = (Achievement) obj;
    achievement.getName().equals(this.getName());
}
return false;
}

已经使用 assertTrue 和 assertArrayEquals 尝试了此处提供的解决方案 ArrayList equality JUnit testing，但没有成功

我错过了什么吗？

更新：

试过如下：

@Test
    public void testAchievementsSize(){
        Player player = getPlayer();
        List<Achievement> playerAchievements = achievementManager.checkForPlayerAchievements(preparePlayerStatistics(player));
        assertEquals(3,playerAchievements.size());
        assertArrayEquals(playerAchievements.toArray(new Achievement[playerAchievements.size()]),
                new Achievement[]{new BruiserAward(),new SharpShooterAward(),new FastKillerAward()} );

    }

导致错误：

arrays first differed at element [0]; expected: com.techdisqus.achievement.BruiserAward<Bruiser> but was: com.techdisqus.achievement.BruiserAward<Bruiser>
Expected :com.techdisqus.achievement.BruiserAward<Bruiser> 
Actual   :com.techdisqus.achievement.BruiserAward<Bruiser>

和

   @Test
    public void testAchievementsSize(){
        Player player = getPlayer();
        List<Achievement> playerAchievements = achievementManager.checkForPlayerAchievements(preparePlayerStatistics(player));
        assertEquals(3,playerAchievements.size());
        assertArrayEquals(playerAchievements.toArray(),
                new Achievement[]{new BruiserAward(),new SharpShooterAward(),new FastKillerAward()} );

    }

导致

arrays first differed at element [0]; expected: com.techdisqus.achievement.BruiserAward<Bruiser> but was: com.techdisqus.achievement.BruiserAward<Bruiser>
Expected :com.techdisqus.achievement.BruiserAward<Bruiser> 
Actual   :com.techdisqus.achievement.BruiserAward<Bruiser>

Answer 1

通常情况下，答案是注意你写的代码.

查看您在问题中包含的 equals 方法。回答这个问题：当为真时返回什么值 obj != null && obj instanceof Achievement.

一旦你回答了这个问题，解决问题。

在 junit 中断言 arrayList 内容时出现断言错误

assertion error while asserting arrayList contents in junit

java

hamcrest

junit4