390 lines
13 KiB
Go
390 lines
13 KiB
Go
// Copyright 2013 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package language
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import (
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"strings"
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"testing"
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"golang.org/x/text/internal/language"
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)
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// equalTags compares language, script and region subtags only.
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func (t Tag) equalTags(a Tag) bool {
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return t.lang() == a.lang() &&
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t.script() == a.script() &&
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t.region() == a.region()
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}
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var errSyntax = language.ErrSyntax
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type parseTest struct {
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i int // the index of this test
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in string
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lang, script, region string
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variants, ext string
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extList []string // only used when more than one extension is present
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invalid bool
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rewrite bool // special rewrite not handled by parseTag
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changed bool // string needed to be reformatted
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}
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func parseTests() []parseTest {
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tests := []parseTest{
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{in: "root", lang: "und"},
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{in: "und", lang: "und"},
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{in: "en", lang: "en"},
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{in: "en-US-u-va-posix", lang: "en", region: "US", ext: "u-va-posix"},
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{in: "ca-ES-valencia", lang: "ca", region: "ES", variants: "valencia"},
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{in: "en-US-u-rg-gbzzzz", lang: "en", region: "US", ext: "u-rg-gbzzzz"},
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{in: "xy", lang: "und", invalid: true},
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{in: "en-ZY", lang: "en", invalid: true},
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{in: "gsw", lang: "gsw"},
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{in: "sr_Latn", lang: "sr", script: "Latn"},
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{in: "af-Arab", lang: "af", script: "Arab"},
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{in: "nl-BE", lang: "nl", region: "BE"},
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{in: "es-419", lang: "es", region: "419"},
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{in: "und-001", lang: "und", region: "001"},
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{in: "de-latn-be", lang: "de", script: "Latn", region: "BE"},
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// Variants
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{in: "de-1901", lang: "de", variants: "1901"},
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// Accept with unsuppressed script.
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{in: "de-Latn-1901", lang: "de", script: "Latn", variants: "1901"},
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// Specialized.
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{in: "sl-rozaj", lang: "sl", variants: "rozaj"},
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{in: "sl-rozaj-lipaw", lang: "sl", variants: "rozaj-lipaw"},
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{in: "sl-rozaj-biske", lang: "sl", variants: "rozaj-biske"},
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{in: "sl-rozaj-biske-1994", lang: "sl", variants: "rozaj-biske-1994"},
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{in: "sl-rozaj-1994", lang: "sl", variants: "rozaj-1994"},
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// Maximum number of variants while adhering to prefix rules.
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{in: "sl-rozaj-biske-1994-alalc97-fonipa-fonupa-fonxsamp", lang: "sl", variants: "rozaj-biske-1994-alalc97-fonipa-fonupa-fonxsamp"},
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// Sorting.
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{in: "sl-1994-biske-rozaj", lang: "sl", variants: "rozaj-biske-1994", changed: true},
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{in: "sl-rozaj-biske-1994-alalc97-fonupa-fonipa-fonxsamp", lang: "sl", variants: "rozaj-biske-1994-alalc97-fonipa-fonupa-fonxsamp", changed: true},
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{in: "nl-fonxsamp-alalc97-fonipa-fonupa", lang: "nl", variants: "alalc97-fonipa-fonupa-fonxsamp", changed: true},
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// Duplicates variants are removed, but not an error.
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{in: "nl-fonupa-fonupa", lang: "nl", variants: "fonupa"},
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// Variants that do not have correct prefixes. We still accept these.
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{in: "de-Cyrl-1901", lang: "de", script: "Cyrl", variants: "1901"},
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{in: "sl-rozaj-lipaw-1994", lang: "sl", variants: "rozaj-lipaw-1994"},
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{in: "sl-1994-biske-rozaj-1994-biske-rozaj", lang: "sl", variants: "rozaj-biske-1994", changed: true},
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{in: "de-Cyrl-1901", lang: "de", script: "Cyrl", variants: "1901"},
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// Invalid variant.
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{in: "de-1902", lang: "de", variants: "", invalid: true},
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{in: "EN_CYRL", lang: "en", script: "Cyrl"},
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// private use and extensions
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{in: "x-a-b-c-d", ext: "x-a-b-c-d"},
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{in: "x_A.-B-C_D", ext: "x-b-c-d", invalid: true, changed: true},
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{in: "x-aa-bbbb-cccccccc-d", ext: "x-aa-bbbb-cccccccc-d"},
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{in: "en-c_cc-b-bbb-a-aaa", lang: "en", changed: true, extList: []string{"a-aaa", "b-bbb", "c-cc"}},
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{in: "en-x_cc-b-bbb-a-aaa", lang: "en", ext: "x-cc-b-bbb-a-aaa", changed: true},
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{in: "en-c_cc-b-bbb-a-aaa-x-x", lang: "en", changed: true, extList: []string{"a-aaa", "b-bbb", "c-cc", "x-x"}},
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{in: "en-v-c", lang: "en", ext: "", invalid: true},
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{in: "en-v-abcdefghi", lang: "en", ext: "", invalid: true},
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{in: "en-v-abc-x", lang: "en", ext: "v-abc", invalid: true},
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{in: "en-v-abc-x-", lang: "en", ext: "v-abc", invalid: true},
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{in: "en-v-abc-w-x-xx", lang: "en", extList: []string{"v-abc", "x-xx"}, invalid: true, changed: true},
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{in: "en-v-abc-w-y-yx", lang: "en", extList: []string{"v-abc", "y-yx"}, invalid: true, changed: true},
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{in: "en-v-c-abc", lang: "en", ext: "c-abc", invalid: true, changed: true},
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{in: "en-v-w-abc", lang: "en", ext: "w-abc", invalid: true, changed: true},
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{in: "en-v-x-abc", lang: "en", ext: "x-abc", invalid: true, changed: true},
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{in: "en-v-x-a", lang: "en", ext: "x-a", invalid: true, changed: true},
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{in: "en-9-aa-0-aa-z-bb-x-a", lang: "en", extList: []string{"0-aa", "9-aa", "z-bb", "x-a"}, changed: true},
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{in: "en-u-c", lang: "en", ext: "", invalid: true},
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{in: "en-u-co-phonebk", lang: "en", ext: "u-co-phonebk"},
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{in: "en-u-co-phonebk-ca", lang: "en", ext: "u-co-phonebk", invalid: true},
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{in: "en-u-nu-arabic-co-phonebk-ca", lang: "en", ext: "u-co-phonebk-nu-arabic", invalid: true, changed: true},
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{in: "en-u-nu-arabic-co-phonebk-ca-x", lang: "en", ext: "u-co-phonebk-nu-arabic", invalid: true, changed: true},
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{in: "en-u-nu-arabic-co-phonebk-ca-s", lang: "en", ext: "u-co-phonebk-nu-arabic", invalid: true, changed: true},
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{in: "en-u-nu-arabic-co-phonebk-ca-a12345678", lang: "en", ext: "u-co-phonebk-nu-arabic", invalid: true, changed: true},
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{in: "en-u-co-phonebook", lang: "en", ext: "", invalid: true},
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{in: "en-u-co-phonebook-cu-xau", lang: "en", ext: "u-cu-xau", invalid: true, changed: true},
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{in: "en-Cyrl-u-co-phonebk", lang: "en", script: "Cyrl", ext: "u-co-phonebk"},
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{in: "en-US-u-co-phonebk", lang: "en", region: "US", ext: "u-co-phonebk"},
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{in: "en-US-u-co-phonebk-cu-xau", lang: "en", region: "US", ext: "u-co-phonebk-cu-xau"},
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{in: "en-scotland-u-co-phonebk", lang: "en", variants: "scotland", ext: "u-co-phonebk"},
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{in: "en-u-cu-xua-co-phonebk", lang: "en", ext: "u-co-phonebk-cu-xua", changed: true},
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{in: "en-u-def-abc-cu-xua-co-phonebk", lang: "en", ext: "u-abc-def-co-phonebk-cu-xua", changed: true},
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{in: "en-u-def-abc", lang: "en", ext: "u-abc-def", changed: true},
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{in: "en-u-cu-xua-co-phonebk-a-cd", lang: "en", extList: []string{"a-cd", "u-co-phonebk-cu-xua"}, changed: true},
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// Invalid "u" extension. Drop invalid parts.
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{in: "en-u-cu-co-phonebk", lang: "en", extList: []string{"u-co-phonebk"}, invalid: true, changed: true},
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{in: "en-u-cu-xau-co", lang: "en", extList: []string{"u-cu-xau"}, invalid: true},
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// We allow duplicate keys as the LDML spec does not explicitly prohibit it.
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// TODO: Consider eliminating duplicates and returning an error.
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{in: "en-u-cu-xau-co-phonebk-cu-xau", lang: "en", ext: "u-co-phonebk-cu-xau", changed: true},
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{in: "en-t-en-Cyrl-NL-fonipa", lang: "en", ext: "t-en-cyrl-nl-fonipa", changed: true},
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{in: "en-t-en-Cyrl-NL-fonipa-t0-abc-def", lang: "en", ext: "t-en-cyrl-nl-fonipa-t0-abc-def", changed: true},
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{in: "en-t-t0-abcd", lang: "en", ext: "t-t0-abcd"},
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// Not necessary to have changed here.
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{in: "en-t-nl-abcd", lang: "en", ext: "t-nl", invalid: true},
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{in: "en-t-nl-latn", lang: "en", ext: "t-nl-latn"},
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{in: "en-t-t0-abcd-x-a", lang: "en", extList: []string{"t-t0-abcd", "x-a"}},
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// invalid
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{in: "", lang: "und", invalid: true},
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{in: "-", lang: "und", invalid: true},
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{in: "x", lang: "und", invalid: true},
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{in: "x-", lang: "und", invalid: true},
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{in: "x--", lang: "und", invalid: true},
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{in: "a-a-b-c-d", lang: "und", invalid: true},
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{in: "en-", lang: "en", invalid: true},
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{in: "enne-", lang: "und", invalid: true},
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{in: "en.", lang: "und", invalid: true},
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{in: "en.-latn", lang: "und", invalid: true},
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{in: "en.-en", lang: "en", invalid: true},
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{in: "x-a-tooManyChars-c-d", ext: "x-a-c-d", invalid: true, changed: true},
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{in: "a-tooManyChars-c-d", lang: "und", invalid: true},
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// TODO: check key-value validity
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// { in: "en-u-cu-xd", lang: "en", ext: "u-cu-xd", invalid: true },
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{in: "en-t-abcd", lang: "en", invalid: true},
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{in: "en-Latn-US-en", lang: "en", script: "Latn", region: "US", invalid: true},
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// rewrites (more tests in TestGrandfathered)
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{in: "zh-min-nan", lang: "nan"},
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{in: "zh-yue", lang: "yue"},
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{in: "zh-xiang", lang: "hsn", rewrite: true},
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{in: "zh-guoyu", lang: "cmn", rewrite: true},
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{in: "iw", lang: "iw"},
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{in: "sgn-BE-FR", lang: "sfb", rewrite: true},
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{in: "i-klingon", lang: "tlh", rewrite: true},
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}
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for i, tt := range tests {
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tests[i].i = i
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if tt.extList != nil {
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tests[i].ext = strings.Join(tt.extList, "-")
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}
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if tt.ext != "" && tt.extList == nil {
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tests[i].extList = []string{tt.ext}
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}
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}
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return tests
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}
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// partChecks runs checks for each part by calling the function returned by f.
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func partChecks(t *testing.T, f func(*parseTest) (Tag, bool)) {
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for i, tt := range parseTests() {
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tag, skip := f(&tt)
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if skip {
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continue
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}
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if l, _ := language.ParseBase(tt.lang); l != tag.lang() {
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t.Errorf("%d: lang was %q; want %q", i, tag.lang(), l)
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}
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if sc, _ := language.ParseScript(tt.script); sc != tag.script() {
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t.Errorf("%d: script was %q; want %q", i, tag.script(), sc)
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}
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if r, _ := language.ParseRegion(tt.region); r != tag.region() {
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t.Errorf("%d: region was %q; want %q", i, tag.region(), r)
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}
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v := tag.tag().Variants()
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if v != "" {
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v = v[1:]
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}
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if v != tt.variants {
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t.Errorf("%d: variants was %q; want %q", i, v, tt.variants)
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}
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if e := strings.Join(tag.tag().Extensions(), "-"); e != tt.ext {
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t.Errorf("%d: extensions were %q; want %q", i, e, tt.ext)
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}
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}
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}
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func TestParse(t *testing.T) {
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partChecks(t, func(tt *parseTest) (id Tag, skip bool) {
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id, _ = Raw.Parse(tt.in)
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return id, false
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})
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}
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func TestErrors(t *testing.T) {
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mkInvalid := func(s string) error {
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return language.NewValueError([]byte(s))
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}
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tests := []struct {
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in string
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out error
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}{
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// invalid subtags.
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{"ac", mkInvalid("ac")},
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{"AC", mkInvalid("ac")},
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{"aa-Uuuu", mkInvalid("Uuuu")},
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{"aa-AB", mkInvalid("AB")},
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// ill-formed wins over invalid.
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{"ac-u", errSyntax},
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{"ac-u-ca", errSyntax},
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{"ac-u-ca-co-pinyin", errSyntax},
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{"noob", errSyntax},
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}
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for _, tt := range tests {
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_, err := Parse(tt.in)
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if err != tt.out {
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t.Errorf("%s: was %q; want %q", tt.in, err, tt.out)
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}
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}
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}
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func TestCompose1(t *testing.T) {
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partChecks(t, func(tt *parseTest) (id Tag, skip bool) {
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l, _ := ParseBase(tt.lang)
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s, _ := ParseScript(tt.script)
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r, _ := ParseRegion(tt.region)
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v := []Variant{}
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for _, x := range strings.Split(tt.variants, "-") {
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p, _ := ParseVariant(x)
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v = append(v, p)
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}
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e := []Extension{}
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for _, x := range tt.extList {
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p, _ := ParseExtension(x)
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e = append(e, p)
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}
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id, _ = Raw.Compose(l, s, r, v, e)
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return id, false
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})
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}
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func TestCompose2(t *testing.T) {
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partChecks(t, func(tt *parseTest) (id Tag, skip bool) {
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l, _ := ParseBase(tt.lang)
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s, _ := ParseScript(tt.script)
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r, _ := ParseRegion(tt.region)
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p := []interface{}{l, s, r, s, r, l}
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for _, x := range strings.Split(tt.variants, "-") {
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if x != "" {
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v, _ := ParseVariant(x)
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p = append(p, v)
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}
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}
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for _, x := range tt.extList {
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e, _ := ParseExtension(x)
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p = append(p, e)
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}
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id, _ = Raw.Compose(p...)
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return id, false
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})
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}
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func TestCompose3(t *testing.T) {
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partChecks(t, func(tt *parseTest) (id Tag, skip bool) {
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id, _ = Raw.Parse(tt.in)
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id, _ = Raw.Compose(id)
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return id, false
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})
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}
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func mk(s string) Tag {
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return Raw.Make(s)
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}
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func TestParseAcceptLanguage(t *testing.T) {
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type res struct {
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t Tag
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q float32
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}
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en := []res{{mk("en"), 1.0}}
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tests := []struct {
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out []res
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in string
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ok bool
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}{
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{en, "en", true},
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{en, " en", true},
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{en, "en ", true},
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{en, " en ", true},
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{en, "en,", true},
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{en, ",en", true},
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{en, ",,,en,,,", true},
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{en, ",en;q=1", true},
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// We allow an empty input, contrary to spec.
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{nil, "", true},
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{[]res{{mk("aa"), 1}}, "aa;", true}, // allow unspecified weight
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// errors
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{nil, ";", false},
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{nil, "$", false},
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{nil, "e;", false},
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{nil, "x;", false},
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{nil, "x", false},
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{nil, "ac", false}, // non-existing language
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{nil, "aa;q", false},
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{nil, "aa;q=", false},
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{nil, "aa;q=.", false},
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// odd fallbacks
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{
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[]res{{mk("en"), 0.1}},
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" english ;q=.1",
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true,
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},
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{
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[]res{{mk("it"), 1.0}, {mk("de"), 1.0}, {mk("fr"), 1.0}},
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" italian, deutsch, french",
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true,
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},
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// lists
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{
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[]res{{mk("en"), 0.1}},
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"en;q=.1",
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true,
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},
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{
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[]res{{mk("mul"), 1.0}},
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"*",
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true,
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},
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{
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[]res{{mk("en"), 1.0}, {mk("de"), 1.0}},
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"en,de",
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true,
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},
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{
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[]res{{mk("en"), 1.0}, {mk("de"), .5}},
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"en,de;q=0.5",
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true,
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},
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{
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[]res{{mk("de"), 0.8}, {mk("en"), 0.5}},
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" en ; q = 0.5 , , de;q=0.8",
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true,
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},
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{
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[]res{{mk("en"), 1.0}, {mk("de"), 1.0}, {mk("fr"), 1.0}, {mk("tlh"), 1.0}},
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"en,de,fr,i-klingon",
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true,
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},
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// sorting
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{
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[]res{{mk("tlh"), 0.4}, {mk("de"), 0.2}, {mk("fr"), 0.2}, {mk("en"), 0.1}},
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"en;q=0.1,de;q=0.2,fr;q=0.2,i-klingon;q=0.4",
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true,
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},
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// dropping
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{
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[]res{{mk("fr"), 0.2}, {mk("en"), 0.1}},
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"en;q=0.1,de;q=0,fr;q=0.2,i-klingon;q=0.0",
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true,
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},
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}
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for i, tt := range tests {
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tags, qs, e := ParseAcceptLanguage(tt.in)
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if e == nil != tt.ok {
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t.Errorf("%d:%s:err: was %v; want %v", i, tt.in, e == nil, tt.ok)
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}
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for j, tag := range tags {
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if out := tt.out[j]; !tag.equalTags(out.t) || qs[j] != out.q {
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t.Errorf("%d:%s: was %s, %1f; want %s, %1f", i, tt.in, tag, qs[j], out.t, out.q)
|
|
break
|
|
}
|
|
}
|
|
}
|
|
}
|