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!84 support substring by code point

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Merge pull request !84 from Ease/v5-dev
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Looly
2019-12-11 11:49:54 +08:00
committed by Gitee
parent 827e2a8dc4 48a057c52d
commit 05aff7f94b
2 changed files with 41 additions and 0 deletions
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14
hutool-core/src/test/java/cn/hutool/core/util/StrUtilTest.java
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@@ -218,6 +218,20 @@ public class StrUtilTest {
String pre = StrUtil.sub(a, -5, a.length());
Assert.assertEquals("ghigh", pre);
}
@Test
public void subByCodePointTest() {
// 🤔👍🍓🤔
String test = "\uD83E\uDD14\uD83D\uDC4D\uD83C\uDF53\uD83E\uDD14";
// 不正确的子字符串
String wrongAnswer = StrUtil.sub(test, 0, 3);
Assert.assertNotEquals("\uD83E\uDD14\uD83D\uDC4D\uD83C\uDF53", wrongAnswer);
// 正确的子字符串
String rightAnswer = StrUtil.subByCodePoint(test, 0, 3);
Assert.assertEquals("\uD83E\uDD14\uD83D\uDC4D\uD83C\uDF53", rightAnswer);
}
@Test
public void subBeforeTest() {