/usr/share/gocode/src/golang.org/x/text/encoding/ianaindex/ianaindex_test.go is in golang-golang-x-text-dev 0.0~git20170627.0.6353ef0-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 | // Copyright 2017 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 ianaindex
import (
"testing"
"golang.org/x/text/encoding"
"golang.org/x/text/encoding/charmap"
"golang.org/x/text/encoding/internal/identifier"
"golang.org/x/text/encoding/japanese"
"golang.org/x/text/encoding/korean"
"golang.org/x/text/encoding/simplifiedchinese"
"golang.org/x/text/encoding/traditionalchinese"
"golang.org/x/text/encoding/unicode"
)
var All = [][]encoding.Encoding{
unicode.All,
charmap.All,
japanese.All,
korean.All,
simplifiedchinese.All,
traditionalchinese.All,
}
// TestAllIANA tests whether an Encoding supported in x/text is defined by IANA but
// not supported by this package.
func TestAllIANA(t *testing.T) {
for _, ea := range All {
for _, e := range ea {
mib, _ := e.(identifier.Interface).ID()
if x := findMIB(ianaToMIB, mib); x != -1 && encodings[x] == nil {
t.Errorf("supported MIB %v (%v) not in index", mib, e)
}
}
}
}
// TestNotSupported reports the encodings in IANA, but not by x/text.
func TestNotSupported(t *testing.T) {
mibs := map[identifier.MIB]bool{}
for _, ea := range All {
for _, e := range ea {
mib, _ := e.(identifier.Interface).ID()
mibs[mib] = true
}
}
// Many encodings in the IANA index will likely not be suppored by the
// Go encodings. That is fine.
// TODO: consider wheter we should add this test.
// for code, mib := range ianaToMIB {
// t.Run(fmt.Sprint("IANA:", mib), func(t *testing.T) {
// if !mibs[mib] {
// t.Skipf("IANA encoding %s (MIB %v) not supported",
// ianaNames[code], mib)
// }
// })
// }
}
func TestEncoding(t *testing.T) {
testCases := []struct {
index *Index
name string
canonical string
err error
}{
{MIME, "utf-8", "UTF-8", nil},
{MIME, " utf-8 ", "UTF-8", nil},
{MIME, " l5 ", "ISO-8859-9", nil},
{MIME, "latin5 ", "ISO-8859-9", nil},
{MIME, "LATIN5 ", "ISO-8859-9", nil},
{MIME, "latin 5", "", errInvalidName},
{MIME, "latin-5", "", errInvalidName},
{IANA, "utf-8", "UTF-8", nil},
{IANA, " utf-8 ", "UTF-8", nil},
{IANA, " l5 ", "ISO_8859-9:1989", nil},
{IANA, "latin5 ", "ISO_8859-9:1989", nil},
{IANA, "LATIN5 ", "ISO_8859-9:1989", nil},
{IANA, "latin 5", "", errInvalidName},
{IANA, "latin-5", "", errInvalidName},
{MIB, "utf-8", "UTF8", nil},
{MIB, " utf-8 ", "UTF8", nil},
{MIB, " l5 ", "ISOLatin5", nil},
{MIB, "latin5 ", "ISOLatin5", nil},
{MIB, "LATIN5 ", "ISOLatin5", nil},
{MIB, "latin 5", "", errInvalidName},
{MIB, "latin-5", "", errInvalidName},
}
for i, tc := range testCases {
enc, err := tc.index.Encoding(tc.name)
if err != tc.err {
t.Errorf("%d: error was %v; want %v", i, err, tc.err)
}
if err != nil {
continue
}
if got, err := tc.index.Name(enc); got != tc.canonical {
t.Errorf("%d: Name(Encoding(%q)) = %q; want %q (%v)", i, tc.name, got, tc.canonical, err)
}
}
}
func TestTables(t *testing.T) {
for i, x := range []*Index{MIME, IANA} {
for name, index := range x.alias {
got, err := x.Encoding(name)
if err != nil {
t.Errorf("%d%s:err: unexpected error %v", i, name, err)
}
if want := x.enc[index]; got != want {
t.Errorf("%d%s:encoding: got %v; want %v", i, name, got, want)
}
if got != nil {
mib, _ := got.(identifier.Interface).ID()
if i := findMIB(x.toMIB, mib); i != index {
t.Errorf("%d%s:mib: got %d; want %d", i, name, i, index)
}
}
}
}
}
type unsupported struct {
encoding.Encoding
}
func (unsupported) ID() (identifier.MIB, string) { return 9999, "" }
func TestName(t *testing.T) {
testCases := []struct {
desc string
enc encoding.Encoding
f func(e encoding.Encoding) (string, error)
name string
err error
}{{
"defined encoding",
charmap.ISO8859_2,
MIME.Name,
"ISO-8859-2",
nil,
}, {
"defined Unicode encoding",
unicode.UTF16(unicode.BigEndian, unicode.IgnoreBOM),
IANA.Name,
"UTF-16BE",
nil,
}, {
"another defined Unicode encoding",
unicode.UTF16(unicode.BigEndian, unicode.UseBOM),
MIME.Name,
"UTF-16",
nil,
}, {
"unknown Unicode encoding",
unicode.UTF16(unicode.BigEndian, unicode.ExpectBOM),
MIME.Name,
"",
errUnknown,
}, {
"undefined encoding",
unsupported{},
MIME.Name,
"",
errUnsupported,
}, {
"undefined other encoding in HTML standard",
charmap.CodePage437,
IANA.Name,
"IBM437",
nil,
}, {
"unknown encoding",
encoding.Nop,
IANA.Name,
"",
errUnknown,
}}
for i, tc := range testCases {
name, err := tc.f(tc.enc)
if name != tc.name || err != tc.err {
t.Errorf("%d:%s: got %q, %v; want %q, %v", i, tc.desc, name, err, tc.name, tc.err)
}
}
}
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