1// Copyright 2011 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
5package template
6
7import (
8	"bytes"
9	"strings"
10	"testing"
11)
12
13func TestFindEndTag(t *testing.T) {
14	tests := []struct {
15		s, tag string
16		want   int
17	}{
18		{"", "tag", -1},
19		{"hello </textarea> hello", "textarea", 6},
20		{"hello </TEXTarea> hello", "textarea", 6},
21		{"hello </textAREA>", "textarea", 6},
22		{"hello </textarea", "textareax", -1},
23		{"hello </textarea>", "tag", -1},
24		{"hello tag </textarea", "tag", -1},
25		{"hello </tag> </other> </textarea> <other>", "textarea", 22},
26		{"</textarea> <other>", "textarea", 0},
27		{"<div> </div> </TEXTAREA>", "textarea", 13},
28		{"<div> </div> </TEXTAREA\t>", "textarea", 13},
29		{"<div> </div> </TEXTAREA >", "textarea", 13},
30		{"<div> </div> </TEXTAREAfoo", "textarea", -1},
31		{"</TEXTAREAfoo </textarea>", "textarea", 14},
32		{"<</script >", "script", 1},
33		{"</script>", "textarea", -1},
34	}
35	for _, test := range tests {
36		if got := indexTagEnd([]byte(test.s), []byte(test.tag)); test.want != got {
37			t.Errorf("%q/%q: want\n\t%d\nbut got\n\t%d", test.s, test.tag, test.want, got)
38		}
39	}
40}
41
42func BenchmarkTemplateSpecialTags(b *testing.B) {
43
44	r := struct {
45		Name, Gift string
46	}{"Aunt Mildred", "bone china tea set"}
47
48	h1 := "<textarea> Hello Hello Hello </textarea> "
49	h2 := "<textarea> <p> Dear {{.Name}},\n{{with .Gift}}Thank you for the lovely {{.}}. {{end}}\nBest wishes. </p>\n</textarea>"
50	html := strings.Repeat(h1, 100) + h2 + strings.Repeat(h1, 100) + h2
51
52	var buf bytes.Buffer
53	for i := 0; i < b.N; i++ {
54		tmpl := Must(New("foo").Parse(html))
55		if err := tmpl.Execute(&buf, r); err != nil {
56			b.Fatal(err)
57		}
58		buf.Reset()
59	}
60}
61