From a025e1caac516c967486f4644fbe4c647100b632 Mon Sep 17 00:00:00 2001
From: Shawn Smith <shawn.p.smith@gmail.com>
Date: Wed, 18 Dec 2013 10:20:25 -0800
Subject: [PATCH] html: add tests for UnescapeString edge cases

R=golang-dev, gobot, bradfitz
CC=golang-dev
https://golang.org/cl/40810044
---
 src/pkg/html/escape_test.go | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/pkg/html/escape_test.go b/src/pkg/html/escape_test.go
index b405d4b4a7..2d7ad8ac26 100644
--- a/src/pkg/html/escape_test.go
+++ b/src/pkg/html/escape_test.go
@@ -64,6 +64,24 @@ var unescapeTests = []unescapeTest{
 		"Footnote&#x87;",
 		"Footnote‡",
 	},
+	// Handle single ampersand.
+	{
+		"copySingleAmpersand",
+		"&",
+		"&",
+	},
+	// Handle ampersand followed by non-entity.
+	{
+		"copyAmpersandNonEntity",
+		"text &test",
+		"text &test",
+	},
+	// Handle "&#".
+	{
+		"copyAmpersandHash",
+		"text &#",
+		"text &#",
+	},
 }
 
 func TestUnescape(t *testing.T) {