// Copyright 2013 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 language
import (
"reflect"
"testing"
)
func TestTagSize(t *testing.T) {
id := Tag{}
typ := reflect.TypeOf(id)
if typ.Size() > 24 {
t.Errorf("size of Tag was %d; want 24", typ.Size())
}
}
func TestIsRoot(t *testing.T) {
loc := Tag{}
if !loc.IsRoot() {
t.Errorf("unspecified should be root.")
}
for i, tt := range parseTests() {
loc, _ := Parse(tt.in)
undef := tt.lang == "und" && tt.script == "" && tt.region == "" && tt.ext == ""
if loc.IsRoot() != undef {
t.Errorf("%d: was %v; want %v", i, loc.IsRoot(), undef)
}
}
}
func TestEquality(t *testing.T) {
for i, tt := range parseTests() {
s := tt.in
tag := Make(s)
t1 := Make(tag.String())
if tag != t1 {
t.Errorf("%d:%s: equality test 1 failed\n got: %#v\nwant: %#v)", i, s, t1, tag)
}
t2, _ := Compose(tag)
if tag != t2 {
t.Errorf("%d:%s: equality test 2 failed\n got: %#v\nwant: %#v", i, s, t2, tag)
}
}
}
func TestString(t *testing.T) {
tests := []string{
"no-u-rg-dkzzzz",
}
for i, s := range tests {
tag := Make(s)
if tag.String() != s {
t.Errorf("%d:%s: got %s: want %s (%#v)", i, s, tag.String(), s, tag)
}
}
}
func TestMarshal(t *testing.T) {
testCases := []string{
// TODO: these values will change with each CLDR update. This issue
// will be solved if we decide to fix the indexes.
"und",
"ca-ES-valencia",
"ca-ES-valencia-u-va-posix",
"ca-ES-valencia-u-co-phonebk",
"ca-ES-valencia-u-co-phonebk-va-posix",
"x-klingon",
"en-US",
"en-US-u-va-posix",
"en",
"en-u-co-phonebk",
"en-001",
"sh",
"en-GB-u-rg-uszzzz",
"en-GB-u-rg-uszzzz-va-posix",
"en-GB-u-co-phonebk-rg-uszzzz",
// Invalid tags should also roundtrip.
"en-GB-u-co-phonebk-rg-uszz",
}
for _, tc := range testCases {
var tag Tag
err := tag.UnmarshalText([]byte(tc))
if err != nil {
t.Errorf("UnmarshalText(%q): unexpected error: %v", tc, err)
}
b, err := tag.MarshalText()
if err != nil {
t.Errorf("MarshalText(%q): unexpected error: %v", tc, err)
}
if got := string(b); got != tc {
t.Errorf("%s: got %q; want %q", tc, got, tc)
}
}
}
func TestBase(t *testing.T) {
tests := []struct {
loc, lang string
conf Confidence
}{
{"und", "en", Low},
{"x-abc", "und", No},
{"en", "en", Exact},
{"und-Cyrl", "ru", High},
// If a region is not included, the official language should be English.
{"und-US", "en", High},
// TODO: not-explicitly listed scripts should probably be und, No
// Modify addTags to return info on how the match was derived.
// {"und-Aghb", "und", No},
}
for i, tt := range tests {
loc, _ := Parse(tt.loc)
lang, conf := loc.Base()
if lang.String() != tt.lang {
t.Errorf("%d: language was %s; want %s", i, lang, tt.lang)
}
if conf != tt.conf {
t.Errorf("%d: confidence was %d; want %d", i, conf, tt.conf)
}
}
}
func TestParseBase(t *testing.T) {
tests := []struct {
in string
out string
ok bool
}{
{"en", "en", true},
{"EN", "en", true},
{"nld", "nl", true},
{"dut", "dut", true}, // bibliographic
{"aaj", "und", false}, // unknown
{"qaa", "qaa", true},
{"a", "und", false},
{"", "und", false},
{"aaaa", "und", false},
}
for i, tt := range tests {
x, err := ParseBase(tt.in)
if x.String() != tt.out || err == nil != tt.ok {
t.Errorf("%d:%s: was %s, %v; want %s, %v", i, tt.in, x, err == nil, tt.out, tt.ok)
}
if y, _, _ := Raw.Make(tt.out).Raw(); x != y {
t.Errorf("%d:%s: tag was %s; want %s", i, tt.in, x, y)
}
}
}
func TestScript(t *testing.T) {
tests := []struct {
loc, scr string
conf Confidence
}{
{"und", "Latn", Low},
{"en-Latn", "Latn", Exact},
{"en", "Latn", High},
{"sr", "Cyrl", Low},
{"kk", "Cyrl", High},
{"kk-CN", "Arab", Low},
{"cmn", "Hans", Low},
{"ru", "Cyrl", High},
{"ru-RU", "Cyrl", High},
{"yue", "Hant", Low},
{"x-abc", "Zzzz", Low},
{"und-zyyy", "Zyyy", Exact},
}
for i, tt := range tests {
loc, _ := Parse(tt.loc)
sc, conf := loc.Script()
if sc.String() != tt.scr {
t.Errorf("%d:%s: script was %s; want %s", i, tt.loc, sc, tt.scr)
}
if conf != tt.conf {
t.Errorf("%d:%s: confidence was %d; want %d", i, tt.loc, conf, tt.conf)
}
}
}
func TestParseScript(t *testing.T) {
tests := []struct {
in string
out string
ok bool
}{
{"Latn", "Latn", true},
{"zzzz", "Zzzz", true},
{"zyyy", "Zyyy", true},
{"Latm", "Zzzz", false},
{"Zzz", "Zzzz", false},
{"", "Zzzz", false},
{"Zzzxx", "Zzzz", false},
}
for i, tt := range tests {
x, err := ParseScript(tt.in)
if x.String() != tt.out || err == nil != tt.ok {
t.Errorf("%d:%s: was %s, %v; want %s, %v", i, tt.in, x, err == nil, tt.out, tt.ok)
}
if err == nil {
if _, y, _ := Raw.Make("und-" + tt.out).Raw(); x != y {
t.Errorf("%d:%s: tag was %s; want %s", i, tt.in, x, y)
}
}
}
}
func TestRegion(t *testing.T) {
tests := []struct {
loc, reg string
conf Confidence
}{
{"und", "US", Low},
{"en", "US", Low},
{"zh-Hant", "TW", Low},
{"en-US", "US", Exact},
{"cmn", "CN", Low},
{"ru", "RU", Low},
{"yue", "HK", Low},
{"x-abc", "ZZ", Low},
}
for i, tt := range tests {
loc, _ := Raw.Parse(tt.loc)
reg, conf := loc.Region()
if reg.String() != tt.reg {
t.Errorf("%d:%s: region was %s; want %s", i, tt.loc, reg, tt.reg)
}
if conf != tt.conf {
t.Errorf("%d:%s: confidence was %d; want %d", i, tt.loc, conf, tt.conf)
}
}
}
func TestEncodeM49(t *testing.T) {
tests := []struct {
m49 int
code string
ok bool
}{
{1, "001", true},
{840, "US", true},
{899, "ZZ", false},
}
for i, tt := range tests {
if r, err := EncodeM49(tt.m49); r.String() != tt.code || err == nil != tt.ok {
t.Errorf("%d:%d: was %s, %v; want %s, %v", i, tt.m49, r, err == nil, tt.code, tt.ok)
}
}
for i := 1; i <= 1000; i++ {
if r, err := EncodeM49(i); err == nil && r.M49() == 0 {
t.Errorf("%d has no error, but maps to undefined region", i)
}
}
}
func TestParseRegion(t *testing.T) {
tests := []struct {
in string
out string
ok bool
}{
{"001", "001", true},
{"840", "US", true},
{"899", "ZZ", false},
{"USA", "US", true},
{"US", "US", true},
{"BC", "ZZ", false},
{"C", "ZZ", false},
{"CCCC", "ZZ", false},
{"01", "ZZ", false},
}
for i, tt := range tests {
r, err := ParseRegion(tt.in)
if r.String() != tt.out || err == nil != tt.ok {
t.Errorf("%d:%s: was %s, %v; want %s, %v", i, tt.in, r, err == nil, tt.out, tt.ok)
}
if err == nil {
if _, _, y := Raw.Make("und-" + tt.out).Raw(); r != y {
t.Errorf("%d:%s: tag was %s; want %s", i, tt.in, r, y)
}
}
}
}
func TestIsCountry(t *testing.T) {
tests := []struct {
reg string
country bool
}{
{"US", true},
{"001", false},
{"958", false},
{"419", false},
{"203", true},
{"020", true},
{"900", false},
{"999", false},
{"QO", false},
{"EU", false},
{"AA", false},
{"XK", true},
}
for i, tt := range tests {
r, _ := ParseRegion(tt.reg)
if r.IsCountry() != tt.country {
t.Errorf("%d: IsCountry(%s) was %v; want %v", i, tt.reg, r.IsCountry(), tt.country)
}
}
}
func TestIsGroup(t *testing.T) {
tests := []struct {
reg string
group bool
}{
{"US", false},
{"001", true},
{"958", false},
{"419", true},
{"203", false},
{"020", false},
{"900", false},
{"999", false},
{"QO", true},
{"EU", true},
{"AA", false},
{"XK", false},
}
for i, tt := range tests {
r, _ := ParseRegion(tt.reg)
if r.IsGroup() != tt.group {
t.Errorf("%d: IsGroup(%s) was %v; want %v", i, tt.reg, r.IsGroup(), tt.group)
}
}
}
func TestContains(t *testing.T) {
tests := []struct {
enclosing, contained string
contains bool
}{
// A region contains itself.
{"US", "US", true},
{"001", "001", true},
// Direct containment.
{"001", "002", true},
{"039", "XK", true},
{"150", "XK", true},
{"EU", "AT", true},
{"QO", "AQ", true},
// Indirect containemnt.
{"001", "US", true},
{"001", "419", true},
{"001", "013", true},
// No containment.
{"US", "001", false},
{"155", "EU", false},
}
for i, tt := range tests {
r := MustParseRegion(tt.enclosing)
con := MustParseRegion(tt.contained)
if got := r.Contains(con); got != tt.contains {
t.Errorf("%d: %s.Contains(%s) was %v; want %v", i, tt.enclosing, tt.contained, got, tt.contains)
}
}
}
func TestRegionCanonicalize(t *testing.T) {
for i, tt := range []struct{ in, out string }{
{"UK", "GB"},
{"TP", "TL"},
{"QU", "EU"},
{"SU", "SU"},
{"VD", "VN"},
{"DD", "DE"},
} {
r := MustParseRegion(tt.in)
want := MustParseRegion(tt.out)
if got := r.Canonicalize(); got != want {
t.Errorf("%d: got %v; want %v", i, got, want)
}
}
}
func TestRegionTLD(t *testing.T) {
for _, tt := range []struct {
in, out string
ok bool
}{
{"EH", "EH", true},
{"FR", "FR", true},
{"TL", "TL", true},
// In ccTLD before in ISO.
{"GG", "GG", true},
// Non-standard assignment of ccTLD to ISO code.
{"GB", "UK", true},
// Exceptionally reserved in ISO and valid ccTLD.
{"UK", "UK", true},
{"AC", "AC", true},
{"EU", "EU", true},
{"SU", "SU", true},
// Exceptionally reserved in ISO and invalid ccTLD.
{"CP", "ZZ", false},
{"DG", "ZZ", false},
{"EA", "ZZ", false},
{"FX", "ZZ", false},
{"IC", "ZZ", false},
{"TA", "ZZ", false},
// Transitionally reserved in ISO (e.g. deprecated) but valid ccTLD as
// it is still being phased out.
{"AN", "AN", true},
{"TP", "TP", true},
// Transitionally reserved in ISO (e.g. deprecated) and invalid ccTLD.
// Defined in package language as it has a mapping in CLDR.
{"BU", "ZZ", false},
{"CS", "ZZ", false},
{"NT", "ZZ", false},
{"YU", "ZZ", false},
{"ZR", "ZZ", false},
// Not defined in package: SF.
// Indeterminately reserved in ISO.
// Defined in package language as it has a legacy mapping in CLDR.
{"DY", "ZZ", false},
{"RH", "ZZ", false},
{"VD", "ZZ", false},
// Not defined in package: EW, FL, JA, LF, PI, RA, RB, RC, RI, RL, RM,
// RN, RP, WG, WL, WV, and YV.
// Not assigned in ISO, but legacy definitions in CLDR.
{"DD", "ZZ", false},
{"YD", "ZZ", false},
// Normal mappings but somewhat special status in ccTLD.
{"BL", "BL", true},
{"MF", "MF", true},
{"BV", "BV", true},
{"SJ", "SJ", true},
// Have values when normalized, but not as is.
{"QU", "ZZ", false},
// ISO Private Use.
{"AA", "ZZ", false},
{"QM", "ZZ", false},
{"QO", "ZZ", false},
{"XA", "ZZ", false},
{"XK", "ZZ", false}, // Sometimes used for Kosovo, but invalid ccTLD.
} {
if tt.in == "" {
continue
}
r := MustParseRegion(tt.in)
var want Region
if tt.out != "ZZ" {
want = MustParseRegion(tt.out)
}
tld, err := r.TLD()
if got := err == nil; got != tt.ok {
t.Errorf("error(%v): got %v; want %v", r, got, tt.ok)
}
if tld != want {
t.Errorf("TLD(%v): got %v; want %v", r, tld, want)
}
}
}
func TestCanonicalize(t *testing.T) {
// TODO: do a full test using CLDR data in a separate regression test.
tests := []struct {
in, out string
option CanonType
}{
{"en-Latn", "en", SuppressScript},
{"sr-Cyrl", "sr-Cyrl", SuppressScript},
{"sh", "sr-Latn", Legacy},
{"sh-HR", "sr-Latn-HR", Legacy},
{"sh-Cyrl-HR", "sr-Cyrl-HR", Legacy},
{"tl", "fil", Legacy},
{"no", "no", Legacy},
{"no", "nb", Legacy | CLDR},
{"cmn", "cmn", Legacy},
{"cmn", "zh", Macro},
{"cmn-u-co-stroke", "zh-u-co-stroke", Macro},
{"yue", "yue", Macro},
{"nb", "no", Macro},
{"nb", "nb", Macro | CLDR},
{"no", "no", Macro},
{"no", "no", Macro | CLDR},
{"iw", "he", DeprecatedBase},
{"iw", "he", Deprecated | CLDR},
{"mo", "ro-MD", Deprecated}, // Adopted by CLDR as of version 25.
{"alb", "sq", Legacy}, // bibliographic
{"dut", "nl", Legacy}, // bibliographic
// As of CLDR 25, mo is no longer considered a legacy mapping.
{"mo", "mo", Legacy | CLDR},
{"und-AN", "und-AN", Deprecated},
{"und-YD", "und-YE", DeprecatedRegion},
{"und-YD", "und-YD", DeprecatedBase},
{"und-Qaai", "und-Zinh", DeprecatedScript},
{"und-Qaai", "und-Qaai", DeprecatedBase},
{"drh", "mn", All}, // drh -> khk -> mn
{"en-GB-u-rg-uszzzz", "en-GB-u-rg-uszzzz", Raw},
{"en-GB-u-rg-USZZZZ", "en-GB-u-rg-uszzzz", Raw},
// TODO: use different exact values for language and regional tag?
{"en-GB-u-rg-uszzzz-va-posix", "en-GB-u-rg-uszzzz-va-posix", Raw},
{"en-GB-u-rg-uszzzz-co-phonebk", "en-GB-u-co-phonebk-rg-uszzzz", Raw},
// Invalid region specifications are left as is.
{"en-GB-u-rg-usz", "en-GB-u-rg-usz", Raw},
{"en-GB-u-rg-usz-va-posix", "en-GB-u-rg-usz-va-posix", Raw},
{"en-GB-u-rg-usz-co-phonebk", "en-GB-u-co-phonebk-rg-usz", Raw},
}
for i, tt := range tests {
in, _ := Raw.Parse(tt.in)
in, _ = tt.option.Canonicalize(in)
if in.String() != tt.out {
t.Errorf("%d:%s: was %s; want %s", i, tt.in, in.String(), tt.out)
}
}
// Test idempotence.
for _, base := range Supported.BaseLanguages() {
tag, _ := Raw.Compose(base)
got, _ := All.Canonicalize(tag)
want, _ := All.Canonicalize(got)
if got != want {
t.Errorf("idem(%s): got %s; want %s", tag, got, want)
}
}
}
func TestTypeForKey(t *testing.T) {
tests := []struct{ key, in, out string }{
{"co", "en", ""},
{"co", "en-u-abc", ""},
{"co", "en-u-co-phonebk", "phonebk"},
{"co", "en-u-co-phonebk-cu-aud", "phonebk"},
{"co", "x-foo-u-co-phonebk", ""},
{"va", "en-US-u-va-posix", "posix"},
{"rg", "en-u-rg-gbzzzz", "gbzzzz"},
{"nu", "en-u-co-phonebk-nu-arabic", "arabic"},
{"kc", "cmn-u-co-stroke", ""},
}
for _, tt := range tests {
if v := Make(tt.in).TypeForKey(tt.key); v != tt.out {
t.Errorf("%q[%q]: was %q; want %q", tt.in, tt.key, v, tt.out)
}
}
}
func TestParent(t *testing.T) {
tests := []struct{ in, out string }{
// Strip variants and extensions first
{"de-u-co-phonebk", "de"},
{"de-1994", "de"},
{"de-Latn-1994", "de"}, // remove superfluous script.
// Ensure the canonical Tag for an entry is in the chain for base-script
// pairs.
{"zh-Hans", "zh"},
// Skip the script if it is the maximized version. CLDR files for the
// skipped tag are always empty.
{"zh-Hans-TW", "zh"},
{"zh-Hans-CN", "zh"},
// Insert the script if the maximized script is not the same as the
// maximized script of the base language.
{"zh-TW", "zh-Hant"},
{"zh-HK", "zh-Hant"},
{"zh-Hant-TW", "zh-Hant"},
{"zh-Hant-HK", "zh-Hant"},
// Non-default script skips to und.
// CLDR
{"az-Cyrl", "und"},
{"bs-Cyrl", "und"},
{"en-Dsrt", "und"},
{"ha-Arab", "und"},
{"mn-Mong", "und"},
{"pa-Arab", "und"},
{"shi-Latn", "und"},
{"sr-Latn", "und"},
{"uz-Arab", "und"},
{"uz-Cyrl", "und"},
{"vai-Latn", "und"},
{"zh-Hant", "und"},
// extra
{"nl-Cyrl", "und"},
// World english inherits from en-001.
{"en-150", "en-001"},
{"en-AU", "en-001"},
{"en-BE", "en-001"},
{"en-GG", "en-001"},
{"en-GI", "en-001"},
{"en-HK", "en-001"},
{"en-IE", "en-001"},
{"en-IM", "en-001"},
{"en-IN", "en-001"},
{"en-JE", "en-001"},
{"en-MT", "en-001"},
{"en-NZ", "en-001"},
{"en-PK", "en-001"},
{"en-SG", "en-001"},
// Spanish in Latin-American countries have es-419 as parent.
{"es-AR", "es-419"},
{"es-BO", "es-419"},
{"es-CL", "es-419"},
{"es-CO", "es-419"},
{"es-CR", "es-419"},
{"es-CU", "es-419"},
{"es-DO", "es-419"},
{"es-EC", "es-419"},
{"es-GT", "es-419"},
{"es-HN", "es-419"},
{"es-MX", "es-419"},
{"es-NI", "es-419"},
{"es-PA", "es-419"},
{"es-PE", "es-419"},
{"es-PR", "es-419"},
{"es-PY", "es-419"},
{"es-SV", "es-419"},
{"es-US", "es-419"},
{"es-UY", "es-419"},
{"es-VE", "es-419"},
// exceptions (according to CLDR)
{"es-CW", "es"},
// Inherit from pt-PT, instead of pt for these countries.
{"pt-AO", "pt-PT"},
{"pt-CV", "pt-PT"},
{"pt-GW", "pt-PT"},
{"pt-MO", "pt-PT"},
{"pt-MZ", "pt-PT"},
{"pt-ST", "pt-PT"},
{"pt-TL", "pt-PT"},
{"en-GB-u-co-phonebk-rg-uszzzz", "en-GB"},
{"en-GB-u-rg-uszzzz", "en-GB"},
{"en-US-u-va-posix", "en-US"},
// Difference between language and regional tag.
{"ca-ES-valencia", "ca-ES"},
{"ca-ES-valencia-u-rg-ptzzzz", "ca-ES"},
{"en-US-u-va-variant", "en-US"},
{"en-u-va-variant", "en"},
{"en-u-rg-gbzzzz", "en"},
{"en-US-u-rg-gbzzzz", "en-US"},
{"nl-US-u-rg-gbzzzz", "nl-US"},
}
for _, tt := range tests {
tag := Raw.MustParse(tt.in)
if p := Raw.MustParse(tt.out); p != tag.Parent() {
t.Errorf("%s: was %v; want %v", tt.in, tag.Parent(), p)
}
}
}
var (
// Tags without error that don't need to be changed.
benchBasic = []string{
"en",
"en-Latn",
"en-GB",
"za",
"zh-Hant",
"zh",
"zh-HK",
"ar-MK",
"en-CA",
"fr-CA",
"fr-CH",
"fr",
"lv",
"he-IT",
"tlh",
"ja",
"ja-Jpan",
"ja-Jpan-JP",
"de-1996",
"de-CH",
"sr",
"sr-Latn",
}
// Tags with extensions, not changes required.
benchExt = []string{
"x-a-b-c-d",
"x-aa-bbbb-cccccccc-d",
"en-x_cc-b-bbb-a-aaa",
"en-c_cc-b-bbb-a-aaa-x-x",
"en-u-co-phonebk",
"en-Cyrl-u-co-phonebk",
"en-US-u-co-phonebk-cu-xau",
"en-nedix-u-co-phonebk",
"en-t-t0-abcd",
"en-t-nl-latn",
"en-t-t0-abcd-x-a",
}
// Change, but not memory allocation required.
benchSimpleChange = []string{
"EN",
"i-klingon",
"en-latn",
"zh-cmn-Hans-CN",
"iw-NL",
}
// Change and memory allocation required.
benchChangeAlloc = []string{
"en-c_cc-b-bbb-a-aaa",
"en-u-cu-xua-co-phonebk",
"en-u-cu-xua-co-phonebk-a-cd",
"en-u-def-abc-cu-xua-co-phonebk",
"en-t-en-Cyrl-NL-1994",
"en-t-en-Cyrl-NL-1994-t0-abc-def",
}
// Tags that result in errors.
benchErr = []string{
// IllFormed
"x_A.-B-C_D",
"en-u-cu-co-phonebk",
"en-u-cu-xau-co",
"en-t-nl-abcd",
// Invalid
"xx",
"nl-Uuuu",
"nl-QB",
}
benchChange = append(benchSimpleChange, benchChangeAlloc...)
benchAll = append(append(append(benchBasic, benchExt...), benchChange...), benchErr...)
)
func doParse(b *testing.B, tag []string) {
for i := 0; i < b.N; i++ {
// Use the modulo instead of looping over all tags so that we get a somewhat
// meaningful ns/op.
Parse(tag[i%len(tag)])
}
}
func BenchmarkParse(b *testing.B) {
doParse(b, benchAll)
}
func BenchmarkParseBasic(b *testing.B) {
doParse(b, benchBasic)
}
func BenchmarkParseError(b *testing.B) {
doParse(b, benchErr)
}
func BenchmarkParseSimpleChange(b *testing.B) {
doParse(b, benchSimpleChange)
}
func BenchmarkParseChangeAlloc(b *testing.B) {
doParse(b, benchChangeAlloc)
}
