1 // Copyright 2010 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package html 6 7 import ( 8 "testing" 9 "unicode/utf8" 10 ) 11 12 func TestEntityLength(t *testing.T) { 13 // We verify that the length of UTF-8 encoding of each value is <= 1 + len(key). 14 // The +1 comes from the leading "&". This property implies that the length of 15 // unescaped text is <= the length of escaped text. 16 for k, v := range entity { 17 if 1+len(k) < utf8.RuneLen(v) { 18 t.Error("escaped entity &" + k + " is shorter than its UTF-8 encoding " + string(v)) 19 } 20 if len(k) > longestEntityWithoutSemicolon && k[len(k)-1] != ';' { 21 t.Errorf("entity name %s is %d characters, but longestEntityWithoutSemicolon=%d", k, len(k), longestEntityWithoutSemicolon) 22 } 23 } 24 for k, v := range entity2 { 25 if 1+len(k) < utf8.RuneLen(v[0])+utf8.RuneLen(v[1]) { 26 t.Error("escaped entity &" + k + " is shorter than its UTF-8 encoding " + string(v[0]) + string(v[1])) 27 } 28 } 29 } 30
