断言Junit中的2个列表之间等于 [英] Assert equals between 2 Lists in Junit

问题描述

如何在 JUnit 测试用例中的列表之间进行相等性断言?列表内容之间应保持平等.

How can I make an equality assertion between lists in a JUnit test case? Equality should be between the content of the list.

例如:

List<String> numbers = Arrays.asList("one", "two", "three");
List<String> numbers2 = Arrays.asList("one", "two", "three");
List<String> numbers3 = Arrays.asList("one", "two", "four"); 

// numbers should be equal to numbers2
//numbers should not be equal to numbers3

推荐答案

我意识到这是几年前提出的，可能那时还没有.但是现在，只需执行以下操作即可:

I realise this was asked a couple years ago, probably this feature wasn't around then. But now, it's easy to just do this:

@Test
public void test_array_pass()
{
  List<String> actual = Arrays.asList("fee", "fi", "foe");
  List<String> expected = Arrays.asList("fee", "fi", "foe");

  assertThat(actual, is(expected));
  assertThat(actual, is(not(expected)));
}

如果您安装了带有hamcrest的最新版本的Junit，只需添加以下导入:

If you have a recent version of Junit installed with hamcrest, just add these imports:

import static org.junit.Assert.*;
import static org.hamcrest.CoreMatchers.*;

http ://junit.org/junit4/javadoc/latest/org/junit/Assert.html#assertThat(T，org.hamcrest.Matcher)

http://junit.org/junit4/javadoc/latest/org/hamcrest/CoreMatchers.html

http://junit.org/junit4/javadoc/Latest/org/hamcrest/core/Is.html

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