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// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package html

import (
        "testing"
        "unicode/utf8"
)

func TestEntityLength(t *testing.T) {
        // We verify that the length of UTF-8 encoding of each value is <= 1 + len(key).
        // The +1 comes from the leading "&". This property implies that the length of
        // unescaped text is <= the length of escaped text.
        for k, v := range entity {
                if 1+len(k) < utf8.RuneLen(v) {
                        t.Error("escaped entity &" + k + " is shorter than its UTF-8 encoding " + string(v))
                }
                if len(k) > longestEntityWithoutSemicolon && k[len(k)-1] != ';' {
                        t.Errorf("entity name %s is %d characters, but longestEntityWithoutSemicolon=%d", k, len(k), longestEntityWithoutSemicolon)
                }
        }
        for k, v := range entity2 {
                if 1+len(k) < utf8.RuneLen(v[0])+utf8.RuneLen(v[1]) {
                        t.Error("escaped entity &" + k + " is shorter than its UTF-8 encoding " + string(v[0]) + string(v[1]))
                }
        }
}