// Copyright 2010 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package html
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import (
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"testing"
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"unicode/utf8"
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)
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func init() {
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UnescapeString("") // force load of entity maps
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}
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func TestEntityLength(t *testing.T) {
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if len(entity) == 0 || len(entity2) == 0 {
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t.Fatal("maps not loaded")
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}
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// We verify that the length of UTF-8 encoding of each value is <= 1 + len(key).
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// The +1 comes from the leading "&". This property implies that the length of
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// unescaped text is <= the length of escaped text.
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for k, v := range entity {
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if 1+len(k) < utf8.RuneLen(v) {
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t.Error("escaped entity &" + k + " is shorter than its UTF-8 encoding " + string(v))
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}
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if len(k) > longestEntityWithoutSemicolon && k[len(k)-1] != ';' {
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t.Errorf("entity name %s is %d characters, but longestEntityWithoutSemicolon=%d", k, len(k), longestEntityWithoutSemicolon)
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}
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}
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for k, v := range entity2 {
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if 1+len(k) < utf8.RuneLen(v[0])+utf8.RuneLen(v[1]) {
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t.Error("escaped entity &" + k + " is shorter than its UTF-8 encoding " + string(v[0]) + string(v[1]))
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}
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}
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}
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