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add filter and filterNew

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This commit is contained in:
Looly
2019-08-30 11:28:51 +08:00
parent a61fe1eecb
commit f76d314fc5
5 changed files with 190 additions and 39 deletions
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57
hutool-core/src/test/java/cn/hutool/core/collection/CollUtilTest.java
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@@ -21,6 +21,7 @@ import cn.hutool.core.collection.CollUtil.Hash;
import cn.hutool.core.date.DateUtil;
import cn.hutool.core.lang.Dict;
import cn.hutool.core.lang.Editor;
import cn.hutool.core.lang.Filter;
import cn.hutool.core.lang.Matcher;
import cn.hutool.core.map.MapUtil;
@@ -212,6 +213,56 @@ public class CollUtilTest {
Assert.assertEquals(CollUtil.newArrayList("a1", "b1", "c1"), filtered);
}
@Test
public void filterTest2() {
ArrayList<String> list = CollUtil.newArrayList("a", "b", "c");
ArrayList<String> filtered = CollUtil.filter(list, new Filter<String>() {
@Override
public boolean accept(String t) {
return false == "a".equals(t);
}
});
// 原地过滤
Assert.assertTrue(list == filtered);
Assert.assertEquals(CollUtil.newArrayList("b", "c"), filtered);
}
@Test
public void removeNullTest() {
ArrayList<String> list = CollUtil.newArrayList("a", "b", "c", null, "", " ");
ArrayList<String> filtered = CollUtil.removeNull(list);
// 原地过滤
Assert.assertTrue(list == filtered);
Assert.assertEquals(CollUtil.newArrayList("a", "b", "c", "", " "), filtered);
}
@Test
public void removeEmptyTest() {
ArrayList<String> list = CollUtil.newArrayList("a", "b", "c", null, "", " ");
ArrayList<String> filtered = CollUtil.removeEmpty(list);
// 原地过滤
Assert.assertTrue(list == filtered);
Assert.assertEquals(CollUtil.newArrayList("a", "b", "c", " "), filtered);
}
@Test
public void removeBlankTest() {
ArrayList<String> list = CollUtil.newArrayList("a", "b", "c", null, "", " ");
ArrayList<String> filtered = CollUtil.removeBlank(list);
// 原地过滤
Assert.assertTrue(list == filtered);
Assert.assertEquals(CollUtil.newArrayList("a", "b", "c"), filtered);
}
@Test
public void groupTest() {
List<String> list = CollUtil.newArrayList("1", "2", "3", "4", "5", "6");
@@ -576,11 +627,11 @@ public class CollUtilTest {
public void zipTest() {
Collection<String> keys = CollUtil.newArrayList("a", "b", "c", "d");
Collection<Integer> values = CollUtil.newArrayList(1, 2, 3, 4);
Map<String, Integer> map = CollUtil.zip(keys, values);
Assert.assertEquals(4, map.size());
Assert.assertEquals(1, map.get("a").intValue());
Assert.assertEquals(2, map.get("b").intValue());
Assert.assertEquals(3, map.get("c").intValue());