JUnit 4比较集合 [英] JUnit 4 compare Collections

问题描述

如何简洁地断言 collections 元素的等同性，特别是中的 Set JUnit 4 ？

How would you succinctly assert the equality of collections elements, specifically a Set in JUnit 4?

推荐答案

您可以断言两个集合彼此相等调用Set equals（）方法。

You can just assert that the two Sets are equal to one another, which invokes the Set equals() method.

public class SimpleTest {

    private Set<String> setA;
    private Set<String> setB;

    @Before
    public void setUp() {
        setA = new HashSet<String>();
        setA.add("Testing...");
        setB = new HashSet<String>();
        setB.add("Testing...");
    }

    @Test
    public void testEqualSets() {
        assertEquals( setA, setB );
    }
}

大小并包含相同的元素。

This test will pass if the two Sets are the same size and contain the same elements.

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