517 lines
17 KiB
Go
517 lines
17 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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"bytes"
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"strings"
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"testing"
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"golang.org/x/text/internal/tag"
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)
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type scanTest struct {
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ok bool // true if scanning does not result in an error
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in string
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tok []string // the expected tokens
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}
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var tests = []scanTest{
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{true, "", []string{}},
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{true, "1", []string{"1"}},
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{true, "en", []string{"en"}},
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{true, "root", []string{"root"}},
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{true, "maxchars", []string{"maxchars"}},
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{false, "bad/", []string{}},
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{false, "morethan8", []string{}},
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{false, "-", []string{}},
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{false, "----", []string{}},
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{false, "_", []string{}},
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{true, "en-US", []string{"en", "US"}},
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{true, "en_US", []string{"en", "US"}},
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{false, "en-US-", []string{"en", "US"}},
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{false, "en-US--", []string{"en", "US"}},
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{false, "en-US---", []string{"en", "US"}},
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{false, "en--US", []string{"en", "US"}},
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{false, "-en-US", []string{"en", "US"}},
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{false, "-en--US-", []string{"en", "US"}},
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{false, "-en--US-", []string{"en", "US"}},
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{false, "en-.-US", []string{"en", "US"}},
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{false, ".-en--US-.", []string{"en", "US"}},
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{false, "en-u.-US", []string{"en", "US"}},
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{true, "en-u1-US", []string{"en", "u1", "US"}},
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{true, "maxchar1_maxchar2-maxchar3", []string{"maxchar1", "maxchar2", "maxchar3"}},
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{false, "moreThan8-moreThan8-e", []string{"e"}},
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}
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func TestScan(t *testing.T) {
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for i, tt := range tests {
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scan := makeScannerString(tt.in)
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for j := 0; !scan.done; j++ {
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if j >= len(tt.tok) {
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t.Errorf("%d: extra token %q", i, scan.token)
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} else if tag.Compare(tt.tok[j], scan.token) != 0 {
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t.Errorf("%d: token %d: found %q; want %q", i, j, scan.token, tt.tok[j])
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break
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}
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scan.scan()
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}
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if s := strings.Join(tt.tok, "-"); tag.Compare(s, bytes.Replace(scan.b, b("_"), b("-"), -1)) != 0 {
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t.Errorf("%d: input: found %q; want %q", i, scan.b, s)
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}
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if (scan.err == nil) != tt.ok {
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t.Errorf("%d: ok: found %v; want %v", i, scan.err == nil, tt.ok)
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}
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}
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}
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func TestAcceptMinSize(t *testing.T) {
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for i, tt := range tests {
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// count number of successive tokens with a minimum size.
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for sz := 1; sz <= 8; sz++ {
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scan := makeScannerString(tt.in)
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scan.end, scan.next = 0, 0
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end := scan.acceptMinSize(sz)
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n := 0
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for i := 0; i < len(tt.tok) && len(tt.tok[i]) >= sz; i++ {
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n += len(tt.tok[i])
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if i > 0 {
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n++
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}
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}
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if end != n {
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t.Errorf("%d:%d: found len %d; want %d", i, sz, end, n)
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}
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}
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}
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}
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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: "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-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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func TestParseExtensions(t *testing.T) {
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for i, tt := range parseTests() {
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if tt.ext == "" || tt.rewrite {
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continue
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}
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scan := makeScannerString(tt.in)
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if len(scan.b) > 1 && scan.b[1] != '-' {
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scan.end = nextExtension(string(scan.b), 0)
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scan.next = scan.end + 1
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scan.scan()
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}
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start := scan.start
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scan.toLower(start, len(scan.b))
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parseExtensions(&scan)
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ext := string(scan.b[start:])
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if ext != tt.ext {
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t.Errorf("%d(%s): ext was %v; want %v", i, tt.in, ext, tt.ext)
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}
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if changed := !strings.HasPrefix(tt.in[start:], ext); changed != tt.changed {
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t.Errorf("%d(%s): changed was %v; want %v", i, tt.in, changed, tt.changed)
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}
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}
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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, _ := getLangID(b(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, _ := getScriptID(script, b(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, _ := getRegionID(b(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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if tag.str == "" {
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continue
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}
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p := int(tag.pVariant)
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if p < int(tag.pExt) {
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p++
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}
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if s, g := tag.str[p:tag.pExt], tt.variants; s != g {
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t.Errorf("%d: variants was %q; want %q", i, s, g)
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}
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p = int(tag.pExt)
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if p > 0 && p < len(tag.str) {
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p++
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}
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if s, g := (tag.str)[p:], tt.ext; s != g {
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t.Errorf("%d: extensions were %q; want %q", i, s, g)
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}
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}
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}
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func TestParseTag(t *testing.T) {
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partChecks(t, func(tt *parseTest) (id Tag, skip bool) {
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if strings.HasPrefix(tt.in, "x-") || tt.rewrite {
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return Tag{}, true
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}
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scan := makeScannerString(tt.in)
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id, end := parseTag(&scan)
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id.str = string(scan.b[:end])
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tt.ext = ""
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tt.extList = []string{}
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return id, false
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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, err := Raw.Parse(tt.in)
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ext := ""
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if id.str != "" {
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if strings.HasPrefix(id.str, "x-") {
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ext = id.str
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} else if int(id.pExt) < len(id.str) && id.pExt > 0 {
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ext = id.str[id.pExt+1:]
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}
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}
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if tag, _ := Raw.Parse(id.String()); tag.String() != id.String() {
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t.Errorf("%d:%s: reparse was %q; want %q", tt.i, tt.in, id.String(), tag.String())
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}
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if ext != tt.ext {
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t.Errorf("%d:%s: ext was %q; want %q", tt.i, tt.in, ext, tt.ext)
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}
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changed := id.str != "" && !strings.HasPrefix(tt.in, id.str)
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if changed != tt.changed {
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t.Errorf("%d:%s: changed was %v; want %v", tt.i, tt.in, changed, tt.changed)
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}
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if (err != nil) != tt.invalid {
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t.Errorf("%d:%s: invalid was %v; want %v. Error: %v", tt.i, tt.in, err != nil, tt.invalid, err)
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}
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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 mkErrInvalid([]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) {
|
|
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
|
|
}
|
|
}
|
|
}
|
|
}
|