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|
package charset
import (
"testing"
"github.com/gabriel-vasile/mimetype/internal/scan"
)
var extractCharsetFromMetaTestCases = []struct {
in string
out string
}{{
"", "",
}, {
"''", "",
}, {
`""`, "",
}, {
`charset`, "",
}, {
`charset=`, "",
}, {
`charset="`, "",
}, {
`charset=""`, "",
}, {
`charset="a"`, "a",
}, {
`charset="'a'"`, "'a'",
}, {
`charset = a`, "a",
}, {
`charset = a;`, "a",
}}
func TestExtractCharsetFromMeta(t *testing.T) {
for _, tc := range extractCharsetFromMetaTestCases {
t.Run(tc.in, func(t *testing.T) {
got := extractCharsetFromMeta(scan.Bytes(tc.in))
if string(got) != tc.out {
t.Errorf("got: %s, want: %s", got, tc.out)
}
})
}
}
func FuzzExtractCharsetFromMeta(f *testing.F) {
for _, tc := range extractCharsetFromMetaTestCases {
f.Add([]byte(tc.in))
}
f.Fuzz(func(t *testing.T, d []byte) {
extractCharsetFromMeta(d)
})
}
var fromHTMLTestCases = []struct {
in string
out string
}{{
"", "",
}, {
"<!--> ", "",
}, {
"<not-meta", "",
}, {
"<meta", "",
}, {
"<meta=", "",
}, {
"<meta ", "",
}, {
`<meta content="text/html; charset=iso-8859-15">`, "",
}, {
`<meta http-equiv="content-type">`, "",
}, {
`<meta content="text/html; charset=iso-8859-15" http-equiv="content-type" >`, "iso-8859-15",
}, {
`<meta http-equiv="content-type" content="a/b; charset=щ">`, "щ",
}, {
`<f 1=2 /><meta b="b" charset="щ">`, "щ",
}}
func TestFromHTML(t *testing.T) {
for _, tc := range fromHTMLTestCases {
t.Run(tc.in, func(t *testing.T) {
got := fromHTML([]byte(tc.in))
if string(got) != tc.out {
t.Errorf("got: %s, want: %s", got, tc.out)
}
})
}
}
func FuzzFromHTML(f *testing.F) {
for _, tc := range fromHTMLTestCases {
f.Add([]byte(tc.in))
}
f.Fuzz(func(t *testing.T, d []byte) {
fromHTML(d)
})
}
var fromXMLTestCases = []struct {
in string
out string
}{{
"", "",
}, {
" not <?xml start ", "",
}, {
" not <?xml start ", "",
}, {
`<?xml version="1.0" encoding=c ?>`, "c",
}, {
`<?xml version="1.0" encoding="c"?>`, "c",
}, {
` <?xml version = "1.0" encoding = "c"?>`, "c",
}}
func TestFromXML(t *testing.T) {
for _, tc := range fromXMLTestCases {
t.Run(tc.in, func(t *testing.T) {
got := fromXML([]byte(tc.in))
if string(got) != tc.out {
t.Errorf("got: %s, want: %s", got, tc.out)
}
})
}
}
func FuzzFromXML(f *testing.F) {
for _, s := range fromXMLTestCases {
f.Add([]byte(s.in))
}
f.Fuzz(func(t *testing.T, d []byte) {
if charset := FromXML(d); charset == "" {
t.Skip()
}
})
}
func TestFromPlain(t *testing.T) {
tcases := []struct {
raw []byte
charset string
}{
{[]byte{0xe6, 0xf8, 0xe5, 0x85, 0x85}, "windows-1252"},
{[]byte{0xe6, 0xf8, 0xe5}, "iso-8859-1"},
{[]byte("æøå"), "utf-8"},
{[]byte{}, ""},
}
for _, tc := range tcases {
if cs := FromPlain(tc.raw); cs != tc.charset {
t.Errorf("in: %v; expected: %s; got: %s", tc.raw, tc.charset, cs)
}
}
}
func FuzzFromPlain(f *testing.F) {
samples := [][]byte{
{0xe6, 0xf8, 0xe5, 0x85, 0x85},
{0xe6, 0xf8, 0xe5},
[]byte("æøå"),
}
for _, s := range samples {
f.Add(s)
}
f.Fuzz(func(t *testing.T, d []byte) {
if charset := FromPlain(d); charset == "" {
t.Skip()
}
})
}
const xmlDoc = `<?xml version="1.0" encoding="UTF-8"?>
<note>
<to>Tove</to>
<from>Jani</from>
<heading>Reminder</heading>
<body>Don't forget me this weekend!</body>
</note>`
const htmlDoc = `<!DOCTYPE html>
<html>
<head><!--[if lt IE 9]><script language="javascript" type="text/javascript" src="//html5shim.googlecode.com/svn/trunk/html5.js"></script><![endif]-->
<meta charset="UTF-8"><style>/*
</style>
<link rel="stylesheet" href="css/animation.css"><!--[if IE 7]><link rel="stylesheet" href="css/" + font.fontname + "-ie7.css"><![endif]-->
<script>
</script>
</head>
<body>
<div class="container footer">さ</div>
</body>
</html>`
func BenchmarkFromHTML(b *testing.B) {
b.ReportAllocs()
doc := []byte(htmlDoc)
for i := 0; i < b.N; i++ {
FromHTML(doc)
}
}
func BenchmarkFromXML(b *testing.B) {
b.ReportAllocs()
doc := []byte(xmlDoc)
for i := 0; i < b.N; i++ {
FromXML(doc)
}
}
func BenchmarkFromPlain(b *testing.B) {
b.ReportAllocs()
doc := []byte(xmlDoc)
for i := 0; i < b.N; i++ {
FromPlain(doc)
}
}
|
