| // 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 ( |
| "bytes" |
| "strings" |
| "testing" |
| |
| "golang.org/x/text/internal/tag" |
| ) |
| |
| type scanTest struct { |
| ok bool // true if scanning does not result in an error |
| in string |
| tok []string // the expected tokens |
| } |
| |
| var tests = []scanTest{ |
| {true, "", []string{}}, |
| {true, "1", []string{"1"}}, |
| {true, "en", []string{"en"}}, |
| {true, "root", []string{"root"}}, |
| {true, "maxchars", []string{"maxchars"}}, |
| {false, "bad/", []string{}}, |
| {false, "morethan8", []string{}}, |
| {false, "-", []string{}}, |
| {false, "----", []string{}}, |
| {false, "_", []string{}}, |
| {true, "en-US", []string{"en", "US"}}, |
| {true, "en_US", []string{"en", "US"}}, |
| {false, "en-US-", []string{"en", "US"}}, |
| {false, "en-US--", []string{"en", "US"}}, |
| {false, "en-US---", []string{"en", "US"}}, |
| {false, "en--US", []string{"en", "US"}}, |
| {false, "-en-US", []string{"en", "US"}}, |
| {false, "-en--US-", []string{"en", "US"}}, |
| {false, "-en--US-", []string{"en", "US"}}, |
| {false, "en-.-US", []string{"en", "US"}}, |
| {false, ".-en--US-.", []string{"en", "US"}}, |
| {false, "en-u.-US", []string{"en", "US"}}, |
| {true, "en-u1-US", []string{"en", "u1", "US"}}, |
| {true, "maxchar1_maxchar2-maxchar3", []string{"maxchar1", "maxchar2", "maxchar3"}}, |
| {false, "moreThan8-moreThan8-e", []string{"e"}}, |
| } |
| |
| func TestScan(t *testing.T) { |
| for i, tt := range tests { |
| scan := makeScannerString(tt.in) |
| for j := 0; !scan.done; j++ { |
| if j >= len(tt.tok) { |
| t.Errorf("%d: extra token %q", i, scan.token) |
| } else if tag.Compare(tt.tok[j], scan.token) != 0 { |
| t.Errorf("%d: token %d: found %q; want %q", i, j, scan.token, tt.tok[j]) |
| break |
| } |
| scan.scan() |
| } |
| if s := strings.Join(tt.tok, "-"); tag.Compare(s, bytes.Replace(scan.b, b("_"), b("-"), -1)) != 0 { |
| t.Errorf("%d: input: found %q; want %q", i, scan.b, s) |
| } |
| if (scan.err == nil) != tt.ok { |
| t.Errorf("%d: ok: found %v; want %v", i, scan.err == nil, tt.ok) |
| } |
| } |
| } |
| |
| func TestAcceptMinSize(t *testing.T) { |
| for i, tt := range tests { |
| // count number of successive tokens with a minimum size. |
| for sz := 1; sz <= 8; sz++ { |
| scan := makeScannerString(tt.in) |
| scan.end, scan.next = 0, 0 |
| end := scan.acceptMinSize(sz) |
| n := 0 |
| for i := 0; i < len(tt.tok) && len(tt.tok[i]) >= sz; i++ { |
| n += len(tt.tok[i]) |
| if i > 0 { |
| n++ |
| } |
| } |
| if end != n { |
| t.Errorf("%d:%d: found len %d; want %d", i, sz, end, n) |
| } |
| } |
| } |
| } |
| |
| type parseTest struct { |
| i int // the index of this test |
| in string |
| lang, script, region string |
| variants, ext string |
| extList []string // only used when more than one extension is present |
| invalid bool |
| rewrite bool // special rewrite not handled by parseTag |
| changed bool // string needed to be reformatted |
| } |
| |
| func parseTests() []parseTest { |
| tests := []parseTest{ |
| {in: "root", lang: "und"}, |
| {in: "und", lang: "und"}, |
| {in: "en", lang: "en"}, |
| {in: "xy", lang: "und", invalid: true}, |
| {in: "en-ZY", lang: "en", invalid: true}, |
| {in: "gsw", lang: "gsw"}, |
| {in: "sr_Latn", lang: "sr", script: "Latn"}, |
| {in: "af-Arab", lang: "af", script: "Arab"}, |
| {in: "nl-BE", lang: "nl", region: "BE"}, |
| {in: "es-419", lang: "es", region: "419"}, |
| {in: "und-001", lang: "und", region: "001"}, |
| {in: "de-latn-be", lang: "de", script: "Latn", region: "BE"}, |
| // Variants |
| {in: "de-1901", lang: "de", variants: "1901"}, |
| // Accept with unsuppressed script. |
| {in: "de-Latn-1901", lang: "de", script: "Latn", variants: "1901"}, |
| // Specialized. |
| {in: "sl-rozaj", lang: "sl", variants: "rozaj"}, |
| {in: "sl-rozaj-lipaw", lang: "sl", variants: "rozaj-lipaw"}, |
| {in: "sl-rozaj-biske", lang: "sl", variants: "rozaj-biske"}, |
| {in: "sl-rozaj-biske-1994", lang: "sl", variants: "rozaj-biske-1994"}, |
| {in: "sl-rozaj-1994", lang: "sl", variants: "rozaj-1994"}, |
| // Maximum number of variants while adhering to prefix rules. |
| {in: "sl-rozaj-biske-1994-alalc97-fonipa-fonupa-fonxsamp", lang: "sl", variants: "rozaj-biske-1994-alalc97-fonipa-fonupa-fonxsamp"}, |
| |
| // Sorting. |
| {in: "sl-1994-biske-rozaj", lang: "sl", variants: "rozaj-biske-1994", changed: true}, |
| {in: "sl-rozaj-biske-1994-alalc97-fonupa-fonipa-fonxsamp", lang: "sl", variants: "rozaj-biske-1994-alalc97-fonipa-fonupa-fonxsamp", changed: true}, |
| {in: "nl-fonxsamp-alalc97-fonipa-fonupa", lang: "nl", variants: "alalc97-fonipa-fonupa-fonxsamp", changed: true}, |
| |
| // Duplicates variants are removed, but not an error. |
| {in: "nl-fonupa-fonupa", lang: "nl", variants: "fonupa"}, |
| |
| // Variants that do not have correct prefixes. We still accept these. |
| {in: "de-Cyrl-1901", lang: "de", script: "Cyrl", variants: "1901"}, |
| {in: "sl-rozaj-lipaw-1994", lang: "sl", variants: "rozaj-lipaw-1994"}, |
| {in: "sl-1994-biske-rozaj-1994-biske-rozaj", lang: "sl", variants: "rozaj-biske-1994", changed: true}, |
| {in: "de-Cyrl-1901", lang: "de", script: "Cyrl", variants: "1901"}, |
| |
| // Invalid variant. |
| {in: "de-1902", lang: "de", variants: "", invalid: true}, |
| |
| {in: "EN_CYRL", lang: "en", script: "Cyrl"}, |
| // private use and extensions |
| {in: "x-a-b-c-d", ext: "x-a-b-c-d"}, |
| {in: "x_A.-B-C_D", ext: "x-b-c-d", invalid: true, changed: true}, |
| {in: "x-aa-bbbb-cccccccc-d", ext: "x-aa-bbbb-cccccccc-d"}, |
| {in: "en-c_cc-b-bbb-a-aaa", lang: "en", changed: true, extList: []string{"a-aaa", "b-bbb", "c-cc"}}, |
| {in: "en-x_cc-b-bbb-a-aaa", lang: "en", ext: "x-cc-b-bbb-a-aaa", changed: true}, |
| {in: "en-c_cc-b-bbb-a-aaa-x-x", lang: "en", changed: true, extList: []string{"a-aaa", "b-bbb", "c-cc", "x-x"}}, |
| {in: "en-v-c", lang: "en", ext: "", invalid: true}, |
| {in: "en-v-abcdefghi", lang: "en", ext: "", invalid: true}, |
| {in: "en-v-abc-x", lang: "en", ext: "v-abc", invalid: true}, |
| {in: "en-v-abc-x-", lang: "en", ext: "v-abc", invalid: true}, |
| {in: "en-v-abc-w-x-xx", lang: "en", extList: []string{"v-abc", "x-xx"}, invalid: true, changed: true}, |
| {in: "en-v-abc-w-y-yx", lang: "en", extList: []string{"v-abc", "y-yx"}, invalid: true, changed: true}, |
| {in: "en-v-c-abc", lang: "en", ext: "c-abc", invalid: true, changed: true}, |
| {in: "en-v-w-abc", lang: "en", ext: "w-abc", invalid: true, changed: true}, |
| {in: "en-v-x-abc", lang: "en", ext: "x-abc", invalid: true, changed: true}, |
| {in: "en-v-x-a", lang: "en", ext: "x-a", invalid: true, changed: true}, |
| {in: "en-9-aa-0-aa-z-bb-x-a", lang: "en", extList: []string{"0-aa", "9-aa", "z-bb", "x-a"}, changed: true}, |
| {in: "en-u-c", lang: "en", ext: "", invalid: true}, |
| {in: "en-u-co-phonebk", lang: "en", ext: "u-co-phonebk"}, |
| {in: "en-u-co-phonebk-ca", lang: "en", ext: "u-co-phonebk", invalid: true}, |
| {in: "en-u-nu-arabic-co-phonebk-ca", lang: "en", ext: "u-co-phonebk-nu-arabic", invalid: true, changed: true}, |
| {in: "en-u-nu-arabic-co-phonebk-ca-x", lang: "en", ext: "u-co-phonebk-nu-arabic", invalid: true, changed: true}, |
| {in: "en-u-nu-arabic-co-phonebk-ca-s", lang: "en", ext: "u-co-phonebk-nu-arabic", invalid: true, changed: true}, |
| {in: "en-u-nu-arabic-co-phonebk-ca-a12345678", lang: "en", ext: "u-co-phonebk-nu-arabic", invalid: true, changed: true}, |
| {in: "en-u-co-phonebook", lang: "en", ext: "", invalid: true}, |
| {in: "en-u-co-phonebook-cu-xau", lang: "en", ext: "u-cu-xau", invalid: true, changed: true}, |
| {in: "en-Cyrl-u-co-phonebk", lang: "en", script: "Cyrl", ext: "u-co-phonebk"}, |
| {in: "en-US-u-co-phonebk", lang: "en", region: "US", ext: "u-co-phonebk"}, |
| {in: "en-US-u-co-phonebk-cu-xau", lang: "en", region: "US", ext: "u-co-phonebk-cu-xau"}, |
| {in: "en-scotland-u-co-phonebk", lang: "en", variants: "scotland", ext: "u-co-phonebk"}, |
| {in: "en-u-cu-xua-co-phonebk", lang: "en", ext: "u-co-phonebk-cu-xua", changed: true}, |
| {in: "en-u-def-abc-cu-xua-co-phonebk", lang: "en", ext: "u-abc-def-co-phonebk-cu-xua", changed: true}, |
| {in: "en-u-def-abc", lang: "en", ext: "u-abc-def", changed: true}, |
| {in: "en-u-cu-xua-co-phonebk-a-cd", lang: "en", extList: []string{"a-cd", "u-co-phonebk-cu-xua"}, changed: true}, |
| // Invalid "u" extension. Drop invalid parts. |
| {in: "en-u-cu-co-phonebk", lang: "en", extList: []string{"u-co-phonebk"}, invalid: true, changed: true}, |
| {in: "en-u-cu-xau-co", lang: "en", extList: []string{"u-cu-xau"}, invalid: true}, |
| // We allow duplicate keys as the LDML spec does not explicitly prohibit it. |
| // TODO: Consider eliminating duplicates and returning an error. |
| {in: "en-u-cu-xau-co-phonebk-cu-xau", lang: "en", ext: "u-co-phonebk-cu-xau-cu-xau", changed: true}, |
| {in: "en-t-en-Cyrl-NL-fonipa", lang: "en", ext: "t-en-cyrl-nl-fonipa", changed: true}, |
| {in: "en-t-en-Cyrl-NL-fonipa-t0-abc-def", lang: "en", ext: "t-en-cyrl-nl-fonipa-t0-abc-def", changed: true}, |
| {in: "en-t-t0-abcd", lang: "en", ext: "t-t0-abcd"}, |
| // Not necessary to have changed here. |
| {in: "en-t-nl-abcd", lang: "en", ext: "t-nl", invalid: true}, |
| {in: "en-t-nl-latn", lang: "en", ext: "t-nl-latn"}, |
| {in: "en-t-t0-abcd-x-a", lang: "en", extList: []string{"t-t0-abcd", "x-a"}}, |
| // invalid |
| {in: "", lang: "und", invalid: true}, |
| {in: "-", lang: "und", invalid: true}, |
| {in: "x", lang: "und", invalid: true}, |
| {in: "x-", lang: "und", invalid: true}, |
| {in: "x--", lang: "und", invalid: true}, |
| {in: "a-a-b-c-d", lang: "und", invalid: true}, |
| {in: "en-", lang: "en", invalid: true}, |
| {in: "enne-", lang: "und", invalid: true}, |
| {in: "en.", lang: "und", invalid: true}, |
| {in: "en.-latn", lang: "und", invalid: true}, |
| {in: "en.-en", lang: "en", invalid: true}, |
| {in: "x-a-tooManyChars-c-d", ext: "x-a-c-d", invalid: true, changed: true}, |
| {in: "a-tooManyChars-c-d", lang: "und", invalid: true}, |
| // TODO: check key-value validity |
| // { in: "en-u-cu-xd", lang: "en", ext: "u-cu-xd", invalid: true }, |
| {in: "en-t-abcd", lang: "en", invalid: true}, |
| {in: "en-Latn-US-en", lang: "en", script: "Latn", region: "US", invalid: true}, |
| // rewrites (more tests in TestGrandfathered) |
| {in: "zh-min-nan", lang: "nan"}, |
| {in: "zh-yue", lang: "yue"}, |
| {in: "zh-xiang", lang: "hsn", rewrite: true}, |
| {in: "zh-guoyu", lang: "cmn", rewrite: true}, |
| {in: "iw", lang: "iw"}, |
| {in: "sgn-BE-FR", lang: "sfb", rewrite: true}, |
| {in: "i-klingon", lang: "tlh", rewrite: true}, |
| } |
| for i, tt := range tests { |
| tests[i].i = i |
| if tt.extList != nil { |
| tests[i].ext = strings.Join(tt.extList, "-") |
| } |
| if tt.ext != "" && tt.extList == nil { |
| tests[i].extList = []string{tt.ext} |
| } |
| } |
| return tests |
| } |
| |
| func TestParseExtensions(t *testing.T) { |
| for i, tt := range parseTests() { |
| if tt.ext == "" || tt.rewrite { |
| continue |
| } |
| scan := makeScannerString(tt.in) |
| if len(scan.b) > 1 && scan.b[1] != '-' { |
| scan.end = nextExtension(string(scan.b), 0) |
| scan.next = scan.end + 1 |
| scan.scan() |
| } |
| start := scan.start |
| scan.toLower(start, len(scan.b)) |
| parseExtensions(&scan) |
| ext := string(scan.b[start:]) |
| if ext != tt.ext { |
| t.Errorf("%d(%s): ext was %v; want %v", i, tt.in, ext, tt.ext) |
| } |
| if changed := !strings.HasPrefix(tt.in[start:], ext); changed != tt.changed { |
| t.Errorf("%d(%s): changed was %v; want %v", i, tt.in, changed, tt.changed) |
| } |
| } |
| } |
| |
| // partChecks runs checks for each part by calling the function returned by f. |
| func partChecks(t *testing.T, f func(*parseTest) (Tag, bool)) { |
| for i, tt := range parseTests() { |
| tag, skip := f(&tt) |
| if skip { |
| continue |
| } |
| if l, _ := getLangID(b(tt.lang)); l != tag.lang { |
| t.Errorf("%d: lang was %q; want %q", i, tag.lang, l) |
| } |
| if sc, _ := getScriptID(script, b(tt.script)); sc != tag.script { |
| t.Errorf("%d: script was %q; want %q", i, tag.script, sc) |
| } |
| if r, _ := getRegionID(b(tt.region)); r != tag.region { |
| t.Errorf("%d: region was %q; want %q", i, tag.region, r) |
| } |
| if tag.str == "" { |
| continue |
| } |
| p := int(tag.pVariant) |
| if p < int(tag.pExt) { |
| p++ |
| } |
| if s, g := tag.str[p:tag.pExt], tt.variants; s != g { |
| t.Errorf("%d: variants was %q; want %q", i, s, g) |
| } |
| p = int(tag.pExt) |
| if p > 0 && p < len(tag.str) { |
| p++ |
| } |
| if s, g := (tag.str)[p:], tt.ext; s != g { |
| t.Errorf("%d: extensions were %q; want %q", i, s, g) |
| } |
| } |
| } |
| |
| func TestParseTag(t *testing.T) { |
| partChecks(t, func(tt *parseTest) (id Tag, skip bool) { |
| if strings.HasPrefix(tt.in, "x-") || tt.rewrite { |
| return Tag{}, true |
| } |
| scan := makeScannerString(tt.in) |
| id, end := parseTag(&scan) |
| id.str = string(scan.b[:end]) |
| tt.ext = "" |
| tt.extList = []string{} |
| return id, false |
| }) |
| } |
| |
| func TestParse(t *testing.T) { |
| partChecks(t, func(tt *parseTest) (id Tag, skip bool) { |
| id, err := Raw.Parse(tt.in) |
| ext := "" |
| if id.str != "" { |
| if strings.HasPrefix(id.str, "x-") { |
| ext = id.str |
| } else if int(id.pExt) < len(id.str) && id.pExt > 0 { |
| ext = id.str[id.pExt+1:] |
| } |
| } |
| if tag, _ := Raw.Parse(id.String()); tag.String() != id.String() { |
| t.Errorf("%d:%s: reparse was %q; want %q", tt.i, tt.in, id.String(), tag.String()) |
| } |
| if ext != tt.ext { |
| t.Errorf("%d:%s: ext was %q; want %q", tt.i, tt.in, ext, tt.ext) |
| } |
| changed := id.str != "" && !strings.HasPrefix(tt.in, id.str) |
| if changed != tt.changed { |
| t.Errorf("%d:%s: changed was %v; want %v", tt.i, tt.in, changed, tt.changed) |
| } |
| if (err != nil) != tt.invalid { |
| t.Errorf("%d:%s: invalid was %v; want %v. Error: %v", tt.i, tt.in, err != nil, tt.invalid, err) |
| } |
| return id, false |
| }) |
| } |
| |
| func TestErrors(t *testing.T) { |
| mkInvalid := func(s string) error { |
| return mkErrInvalid([]byte(s)) |
| } |
| tests := []struct { |
| in string |
| out error |
| }{ |
| // invalid subtags. |
| {"ac", mkInvalid("ac")}, |
| {"AC", mkInvalid("ac")}, |
| {"aa-Uuuu", mkInvalid("Uuuu")}, |
| {"aa-AB", mkInvalid("AB")}, |
| // ill-formed wins over invalid. |
| {"ac-u", errSyntax}, |
| {"ac-u-ca", errSyntax}, |
| {"ac-u-ca-co-pinyin", errSyntax}, |
| {"noob", errSyntax}, |
| } |
| for _, tt := range tests { |
| _, err := Parse(tt.in) |
| if err != tt.out { |
| t.Errorf("%s: was %q; want %q", tt.in, err, tt.out) |
| } |
| } |
| } |
| |
| func TestCompose1(t *testing.T) { |
| partChecks(t, func(tt *parseTest) (id Tag, skip bool) { |
| l, _ := ParseBase(tt.lang) |
| s, _ := ParseScript(tt.script) |
| r, _ := ParseRegion(tt.region) |
| v := []Variant{} |
| for _, x := range strings.Split(tt.variants, "-") { |
| p, _ := ParseVariant(x) |
| v = append(v, p) |
| } |
| e := []Extension{} |
| for _, x := range tt.extList { |
| p, _ := ParseExtension(x) |
| e = append(e, p) |
| } |
| id, _ = Raw.Compose(l, s, r, v, e) |
| return id, false |
| }) |
| } |
| |
| func TestCompose2(t *testing.T) { |
| partChecks(t, func(tt *parseTest) (id Tag, skip bool) { |
| l, _ := ParseBase(tt.lang) |
| s, _ := ParseScript(tt.script) |
| r, _ := ParseRegion(tt.region) |
| p := []interface{}{l, s, r, s, r, l} |
| for _, x := range strings.Split(tt.variants, "-") { |
| v, _ := ParseVariant(x) |
| p = append(p, v) |
| } |
| for _, x := range tt.extList { |
| e, _ := ParseExtension(x) |
| p = append(p, e) |
| } |
| id, _ = Raw.Compose(p...) |
| return id, false |
| }) |
| } |
| |
| func TestCompose3(t *testing.T) { |
| partChecks(t, func(tt *parseTest) (id Tag, skip bool) { |
| id, _ = Raw.Parse(tt.in) |
| id, _ = Raw.Compose(id) |
| return id, false |
| }) |
| } |
| |
| func mk(s string) Tag { |
| return Raw.Make(s) |
| } |
| |
| func TestParseAcceptLanguage(t *testing.T) { |
| type res struct { |
| t Tag |
| q float32 |
| } |
| en := []res{{mk("en"), 1.0}} |
| tests := []struct { |
| out []res |
| in string |
| ok bool |
| }{ |
| {en, "en", true}, |
| {en, " en", true}, |
| {en, "en ", true}, |
| {en, " en ", true}, |
| {en, "en,", true}, |
| {en, ",en", true}, |
| {en, ",,,en,,,", true}, |
| {en, ",en;q=1", true}, |
| |
| // We allow an empty input, contrary to spec. |
| {nil, "", true}, |
| {[]res{{mk("aa"), 1}}, "aa;", true}, // allow unspecified weight |
| |
| // errors |
| {nil, ";", false}, |
| {nil, "$", false}, |
| {nil, "e;", false}, |
| {nil, "x;", false}, |
| {nil, "x", false}, |
| {nil, "ac", false}, // non-existing language |
| {nil, "aa;q", false}, |
| {nil, "aa;q=", false}, |
| {nil, "aa;q=.", false}, |
| |
| // odd fallbacks |
| { |
| []res{{mk("en"), 0.1}}, |
| " english ;q=.1", |
| true, |
| }, |
| { |
| []res{{mk("it"), 1.0}, {mk("de"), 1.0}, {mk("fr"), 1.0}}, |
| " italian, deutsch, french", |
| true, |
| }, |
| |
| // lists |
| { |
| []res{{mk("en"), 0.1}}, |
| "en;q=.1", |
| true, |
| }, |
| { |
| []res{{mk("mul"), 1.0}}, |
| "*", |
| true, |
| }, |
| { |
| []res{{mk("en"), 1.0}, {mk("de"), 1.0}}, |
| "en,de", |
| true, |
| }, |
| { |
| []res{{mk("en"), 1.0}, {mk("de"), .5}}, |
| "en,de;q=0.5", |
| true, |
| }, |
| { |
| []res{{mk("de"), 0.8}, {mk("en"), 0.5}}, |
| " en ; q = 0.5 , , de;q=0.8", |
| true, |
| }, |
| { |
| []res{{mk("en"), 1.0}, {mk("de"), 1.0}, {mk("fr"), 1.0}, {mk("tlh"), 1.0}}, |
| "en,de,fr,i-klingon", |
| true, |
| }, |
| // sorting |
| { |
| []res{{mk("tlh"), 0.4}, {mk("de"), 0.2}, {mk("fr"), 0.2}, {mk("en"), 0.1}}, |
| "en;q=0.1,de;q=0.2,fr;q=0.2,i-klingon;q=0.4", |
| true, |
| }, |
| // dropping |
| { |
| []res{{mk("fr"), 0.2}, {mk("en"), 0.1}}, |
| "en;q=0.1,de;q=0,fr;q=0.2,i-klingon;q=0.0", |
| true, |
| }, |
| } |
| for i, tt := range tests { |
| tags, qs, e := ParseAcceptLanguage(tt.in) |
| if e == nil != tt.ok { |
| t.Errorf("%d:%s:err: was %v; want %v", i, tt.in, e == nil, tt.ok) |
| } |
| for j, tag := range tags { |
| if out := tt.out[j]; !tag.equalTags(out.t) || qs[j] != out.q { |
| t.Errorf("%d:%s: was %s, %1f; want %s, %1f", i, tt.in, tag, qs[j], out.t, out.q) |
| break |
| } |
| } |
| } |
| } |
