!747 Validator工具类增加4个验证方法

Merge pull request !747 from hellozrh/v6-dev

hutool-core/src/test/java/cn/hutool/core/lang/ValidatorTest.java

@@ -1,11 +1,16 @@
 package cn.hutool.core.lang;
 
+import cn.hutool.core.date.DateUtil;
 import cn.hutool.core.exceptions.ValidateException;
 import cn.hutool.core.lang.id.IdUtil;
 import cn.hutool.core.regex.PatternPool;
+import cn.hutool.core.text.StrUtil;
+import cn.hutool.core.util.CharsetUtil;
 import org.junit.Assert;
 import org.junit.Test;
 
+import java.util.Date;
+
 /**
  * 验证器单元测试
  *
@@ -248,6 +253,44 @@ public class ValidatorTest {
 		Assert.assertTrue(Validator.isMatchRegex(PatternPool.URL_HTTP, content));
 	}
 
+	@Test
+	public void validateBetweenTest(){
+		Date value = DateUtil.parse("2022-08-09 21:22:00");
+		final Date start = DateUtil.parse("2022-08-01 21:22:00");
+		final Date end = DateUtil.parse("2022-09-09 21:22:00");
+
+		Validator.validateBetween(value, start, end, "您选择的日期超出规定范围!");
+		Assert.assertTrue(true);
+
+		final Date value2 = DateUtil.parse("2023-08-09 21:22:00");
+		Assert.assertThrows(ValidateException.class, ()->
+				Validator.validateBetween(value2, start, end, "您选择的日期超出规定范围!")
+		);
+	}
+
+	@Test
+	public void validateLengthTest() {
+		String s1 = "abc";
+		Assert.assertThrows(ValidateException.class, ()->
+				Validator.validateLength(s1, 6, 8, "请输入6到8位的字符！"));
+	}
+
+	@Test
+	public void validateByteLengthTest() {
+		String s1 = "abc";
+		int len1 = StrUtil.byteLength(s1, CharsetUtil.UTF_8);
+		Assert.assertEquals(len1, 3);
+
+		String s2 = "我ab";
+		int len2 = StrUtil.byteLength(s2, CharsetUtil.UTF_8);
+		Assert.assertEquals(len2, 5);
+
+		//一个汉字在utf-8编码下，占3个字节。
+		Assert.assertThrows(ValidateException.class, ()->
+				Validator.validateByteLength(s2, 1, 3, "您输入的字符串长度超出限制！")
+		);
+	}
+
 	@Test
 	public void isChineseNameTest(){
 		Assert.assertTrue(Validator.isChineseName("阿卜杜尼亚孜·毛力尼亚孜"));