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	"html"
9	"strings"
10	"testing"
11)
12
13func TestHTMLNospaceEscaper(t *testing.T) {
14	input := ("\x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f" +
15		"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f" +
16		` !"#$%&'()*+,-./` +
17		`0123456789:;<=>?` +
18		`@ABCDEFGHIJKLMNO` +
19		`PQRSTUVWXYZ[\]^_` +
20		"`abcdefghijklmno" +
21		"pqrstuvwxyz{|}~\x7f" +
22		"\u00A0\u0100\u2028\u2029\ufeff\ufdec\U0001D11E" +
23		"erroneous\x960") // keep at the end
24
25	want := ("&#xfffd;\x01\x02\x03\x04\x05\x06\x07" +
26		"\x08&#9;&#10;&#11;&#12;&#13;\x0E\x0F" +
27		"\x10\x11\x12\x13\x14\x15\x16\x17" +
28		"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f" +
29		`&#32;!&#34;#$%&amp;&#39;()*&#43;,-./` +
30		`0123456789:;&lt;&#61;&gt;?` +
31		`@ABCDEFGHIJKLMNO` +
32		`PQRSTUVWXYZ[\]^_` +
33		`&#96;abcdefghijklmno` +
34		`pqrstuvwxyz{|}~` + "\u007f" +
35		"\u00A0\u0100\u2028\u2029\ufeff&#xfdec;\U0001D11E" +
36		"erroneous&#xfffd;0") // keep at the end
37
38	got := htmlNospaceEscaper(input)
39	if got != want {
40		t.Errorf("encode: want\n\t%q\nbut got\n\t%q", want, got)
41	}
42
43	r := strings.NewReplacer("\x00", "\ufffd", "\x96", "\ufffd")
44	got, want = html.UnescapeString(got), r.Replace(input)
45	if want != got {
46		t.Errorf("decode: want\n\t%q\nbut got\n\t%q", want, got)
47	}
48}
49
50func TestStripTags(t *testing.T) {
51	tests := []struct {
52		input, want string
53	}{
54		{"", ""},
55		{"Hello, World!", "Hello, World!"},
56		{"foo&amp;bar", "foo&amp;bar"},
57		{`Hello <a href="www.example.com/">World</a>!`, "Hello World!"},
58		{"Foo <textarea>Bar</textarea> Baz", "Foo Bar Baz"},
59		{"Foo <!-- Bar --> Baz", "Foo  Baz"},
60		{"<", "<"},
61		{"foo < bar", "foo < bar"},
62		{`Foo<script type="text/javascript">alert(1337)</script>Bar`, "FooBar"},
63		{`Foo<div title="1>2">Bar`, "FooBar"},
64		{`I <3 Ponies!`, `I <3 Ponies!`},
65		{`<script>foo()</script>`, ``},
66	}
67
68	for _, test := range tests {
69		if got := stripTags(test.input); got != test.want {
70			t.Errorf("%q: want %q, got %q", test.input, test.want, got)
71		}
72	}
73}
74
75func BenchmarkHTMLNospaceEscaper(b *testing.B) {
76	for i := 0; i < b.N; i++ {
77		htmlNospaceEscaper("The <i>quick</i>,\r\n<span style='color:brown'>brown</span> fox jumps\u2028over the <canine class=\"lazy\">dog</canine>")
78	}
79}
80
81func BenchmarkHTMLNospaceEscaperNoSpecials(b *testing.B) {
82	for i := 0; i < b.N; i++ {
83		htmlNospaceEscaper("The_quick,_brown_fox_jumps_over_the_lazy_dog.")
84	}
85}
86
87func BenchmarkStripTags(b *testing.B) {
88	for i := 0; i < b.N; i++ {
89		stripTags("The <i>quick</i>,\r\n<span style='color:brown'>brown</span> fox jumps\u2028over the <canine class=\"lazy\">dog</canine>")
90	}
91}
92
93func BenchmarkStripTagsNoSpecials(b *testing.B) {
94	for i := 0; i < b.N; i++ {
95		stripTags("The quick, brown fox jumps over the lazy dog.")
96	}
97}
98