libgo/go/html/entity_test.go

   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 }