From a938455c2eb0cf5fd95564d547459603154efc53 Mon Sep 17 00:00:00 2001
From: Looly <loolly@gmail.com>
Date: Wed, 13 Apr 2022 17:23:24 +0800
Subject: [PATCH] add test

---
 .../src/test/java/cn/hutool/core/net/UrlBuilderTest.java  | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/hutool-core/src/test/java/cn/hutool/core/net/UrlBuilderTest.java b/hutool-core/src/test/java/cn/hutool/core/net/UrlBuilderTest.java
index 6ccc548c4..7d54c4503 100644
--- a/hutool-core/src/test/java/cn/hutool/core/net/UrlBuilderTest.java
+++ b/hutool-core/src/test/java/cn/hutool/core/net/UrlBuilderTest.java
@@ -426,4 +426,12 @@ public class UrlBuilderTest {
 		final String s = UrlBuilder.of(url, null).setCharset(CharsetUtil.CHARSET_UTF_8).toString();
 		Assert.assertEquals(url, s);
 	}
+
+	@Test
+	public void issueI51T0VTest(){
+		// &amp;自动转换为&
+		String url = "https://hutool.cn/a.mp3?Expires=1652423884&amp;key=JMv2rKNc7Pz&amp;sign=12zva00BpVqgZcX1wcb%2BrmN7H3E%3D";
+		final UrlBuilder of = UrlBuilder.of(url, null);
+		Assert.assertEquals(url.replace("&amp;", "&"), of.toString());
+	}
 }