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add intersectionDistinctTerst

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添加交集去重测试方法
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Liang Long 2020-06-23 18:45:52 +08:00 committed by GitHub
parent b1337edc30
commit 1bc2fe138e
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1 changed files with 15 additions and 2 deletions
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hutool-core/src/test/java/cn/hutool/core/collection/CollUtilTest.java
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@ -76,8 +76,21 @@ public class CollUtilTest {
ArrayList<String> list1 = CollUtil.newArrayList("a", "b", "b", "c", "d", "x");
ArrayList<String> list2 = CollUtil.newArrayList("a", "b", "b", "b", "c", "d");
Collection<String> union = CollUtil.intersection(list1, list2);
Assert.assertEquals(2, CollUtil.count(union, t -> t.equals("b")));
Collection<String> intersection = CollUtil.intersection(list1, list2);
Assert.assertEquals(2, CollUtil.count(intersection, t -> t.equals("b")));
}
@Test
public void intersectionTest2() {
ArrayList<String> list1 = CollUtil.newArrayList("a", "b", "b", "c", "d", "x");
ArrayList<String> list2 = CollUtil.newArrayList("a", "b", "b", "b", "c", "d");
ArrayList<String> list3 = CollUtil.newArrayList();
Collection<String> intersectionDistinct = CollUtil.intersectionDistinct(list1, list2);
Assert.assertEquals(CollUtil.newLinkedHashSet("a", "b", "c", "d"), intersectionDistinct);
Collection<String> intersectionDistinct2 = CollUtil.intersectionDistinct(list1, list2, list3);
Assert.assertTrue(intersectionDistinct2.isEmpty());
}
@Test