950 lines
30 KiB
Go
950 lines
30 KiB
Go
// Copyright 2014 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 cases
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import (
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"bytes"
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"fmt"
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"path"
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"strings"
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"testing"
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"unicode/utf8"
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"golang.org/x/text/internal/testtext"
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"golang.org/x/text/language"
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"golang.org/x/text/transform"
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"golang.org/x/text/unicode/norm"
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)
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type testCase struct {
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lang string
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src interface{} // string, []string, or nil to skip test
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title interface{} // string, []string, or nil to skip test
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lower interface{} // string, []string, or nil to skip test
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upper interface{} // string, []string, or nil to skip test
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opts options
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}
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var testCases = []testCase{
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0: {
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lang: "und",
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src: "abc aBc ABC abC İsıI ΕΣΆΣ",
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title: "Abc Abc Abc Abc İsıi Εσάσ",
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lower: "abc abc abc abc i\u0307sıi εσάσ",
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upper: "ABC ABC ABC ABC İSII ΕΣΆΣ",
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opts: getOpts(HandleFinalSigma(false)),
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},
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1: {
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lang: "und",
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src: "abc aBc ABC abC İsıI ΕΣΆΣ Σ _Σ -Σ",
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title: "Abc Abc Abc Abc İsıi Εσάς Σ _Σ -Σ",
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lower: "abc abc abc abc i\u0307sıi εσάς σ _σ -σ",
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upper: "ABC ABC ABC ABC İSII ΕΣΆΣ Σ _Σ -Σ",
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opts: getOpts(HandleFinalSigma(true)),
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},
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2: { // Title cased runes.
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lang: supported,
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src: "DžA",
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title: "Dža",
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lower: "dža",
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upper: "DŽA",
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},
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3: {
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// Title breaking.
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lang: supported,
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src: []string{
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"FOO CASE TEST",
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"DON'T DO THiS",
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"χωΡΊΣ χωΡΊΣ^a χωΡΊΣ:a χωΡΊΣ:^a χωΡΊΣ^ όμΩΣ Σ",
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"with-hyphens",
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"49ers 49ers",
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`"capitalize a^a -hyphen 0X _u a_u:a`,
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"MidNumLet a.b\u2018c\u2019d\u2024e\ufe52f\uff07f\uff0eg",
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"MidNum a,b;c\u037ed\u0589e\u060cf\u2044g\ufe50h",
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"\u0345 x\u3031x x\u05d0x \u05d0x a'.a a.a a4,a",
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},
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title: []string{
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"Foo Case Test",
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"Don't Do This",
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"Χωρίς Χωρίσ^A Χωρίσ:a Χωρίσ:^A Χωρίς^ Όμως Σ",
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"With-Hyphens",
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// Note that 49Ers is correct according to the spec.
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// TODO: provide some option to the user to treat different
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// characters as cased.
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"49Ers 49Ers",
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`"Capitalize A^A -Hyphen 0X _U A_u:a`,
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"Midnumlet A.b\u2018c\u2019d\u2024e\ufe52f\uff07f\uff0eg",
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"Midnum A,B;C\u037eD\u0589E\u060cF\u2044G\ufe50H",
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"\u0399 X\u3031X X\u05d0x \u05d0X A'.A A.a A4,A",
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},
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},
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// TODO: These are known deviations from the options{} Unicode Word Breaking
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// Algorithm.
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// {
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// "und",
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// "x_\u3031_x a4,4a",
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// "X_\u3031_x A4,4a", // Currently is "X_\U3031_X A4,4A".
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// "x_\u3031_x a4,4a",
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// "X_\u3031_X A4,4A",
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// options{},
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// },
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4: {
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// Tests title options
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lang: "und",
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src: "abc aBc ABC abC İsıI o'Brien",
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title: "Abc ABc ABC AbC İsıI O'Brien",
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opts: getOpts(NoLower),
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},
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5: {
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lang: "el",
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src: "aBc ΟΔΌΣ Οδός Σο ΣΟ Σ oΣ ΟΣ σ ἕξ \u03ac",
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title: "Abc Οδός Οδός Σο Σο Σ Oς Ος Σ Ἕξ \u0386",
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lower: "abc οδός οδός σο σο σ oς ος σ ἕξ \u03ac",
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upper: "ABC ΟΔΟΣ ΟΔΟΣ ΣΟ ΣΟ Σ OΣ ΟΣ Σ ΕΞ \u0391", // Uppercase removes accents
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},
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6: {
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lang: "tr az",
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src: "Isiİ İsıI I\u0307sIiİ İsıI\u0307 I\u0300\u0307",
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title: "Isii İsıı I\u0307sıii İsıi I\u0300\u0307",
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lower: "ısii isıı isıii isıi \u0131\u0300\u0307",
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upper: "ISİİ İSII I\u0307SIİİ İSII\u0307 I\u0300\u0307",
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},
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7: {
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lang: "lt",
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src: "I Ï J J̈ Į Į̈ Ì Í Ĩ xi̇̈ xj̇̈ xį̇̈ xi̇̀ xi̇́ xi̇̃ XI XÏ XJ XJ̈ XĮ XĮ̈ XI̟̤",
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title: "I Ï J J̈ Į Į̈ Ì Í Ĩ Xi̇̈ Xj̇̈ Xį̇̈ Xi̇̀ Xi̇́ Xi̇̃ Xi Xi̇̈ Xj Xj̇̈ Xį Xį̇̈ Xi̟̤",
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lower: "i i̇̈ j j̇̈ į į̇̈ i̇̀ i̇́ i̇̃ xi̇̈ xj̇̈ xį̇̈ xi̇̀ xi̇́ xi̇̃ xi xi̇̈ xj xj̇̈ xį xį̇̈ xi̟̤",
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upper: "I Ï J J̈ Į Į̈ Ì Í Ĩ XÏ XJ̈ XĮ̈ XÌ XÍ XĨ XI XÏ XJ XJ̈ XĮ XĮ̈ XI̟̤",
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},
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8: {
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lang: "lt",
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src: "\u012e\u0300 \u00cc i\u0307\u0300 i\u0307\u0301 i\u0307\u0303 i\u0307\u0308 i\u0300\u0307",
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title: "\u012e\u0300 \u00cc \u00cc \u00cd \u0128 \u00cf I\u0300\u0307",
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lower: "\u012f\u0307\u0300 i\u0307\u0300 i\u0307\u0300 i\u0307\u0301 i\u0307\u0303 i\u0307\u0308 i\u0300\u0307",
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upper: "\u012e\u0300 \u00cc \u00cc \u00cd \u0128 \u00cf I\u0300\u0307",
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},
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9: {
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lang: "nl",
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src: "ijs IJs Ij Ijs İJ İJs aa aA 'ns 'S",
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title: "IJs IJs IJ IJs İj İjs Aa Aa 'ns 's",
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},
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// Note: this specification is not currently part of CLDR. The same holds
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// for the leading apostrophe handling for Dutch.
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// See http://unicode.org/cldr/trac/ticket/7078.
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10: {
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lang: "af",
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src: "wag 'n bietjie",
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title: "Wag 'n Bietjie",
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lower: "wag 'n bietjie",
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upper: "WAG 'N BIETJIE",
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},
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}
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func TestCaseMappings(t *testing.T) {
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for i, tt := range testCases {
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src, ok := tt.src.([]string)
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if !ok {
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src = strings.Split(tt.src.(string), " ")
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}
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for _, lang := range strings.Split(tt.lang, " ") {
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tag := language.MustParse(lang)
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testEntry := func(name string, mk func(language.Tag, options) transform.SpanningTransformer, gold interface{}) {
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c := Caser{mk(tag, tt.opts)}
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if gold != nil {
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wants, ok := gold.([]string)
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if !ok {
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wants = strings.Split(gold.(string), " ")
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}
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for j, want := range wants {
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if got := c.String(src[j]); got != want {
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t.Errorf("%d:%s:\n%s.String(%+q):\ngot %+q;\nwant %+q", i, lang, name, src[j], got, want)
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}
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}
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}
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dst := make([]byte, 256) // big enough to hold any result
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src := []byte(strings.Join(src, " "))
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v := testtext.AllocsPerRun(20, func() {
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c.Transform(dst, src, true)
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})
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if v > 1.1 {
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t.Errorf("%d:%s:\n%s: number of allocs was %f; want 0", i, lang, name, v)
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}
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}
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testEntry("Upper", makeUpper, tt.upper)
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testEntry("Lower", makeLower, tt.lower)
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testEntry("Title", makeTitle, tt.title)
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}
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}
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}
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// TestAlloc tests that some mapping methods should not cause any allocation.
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func TestAlloc(t *testing.T) {
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dst := make([]byte, 256) // big enough to hold any result
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src := []byte(txtNonASCII)
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for i, f := range []func() Caser{
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func() Caser { return Upper(language.Und) },
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func() Caser { return Lower(language.Und) },
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func() Caser { return Lower(language.Und, HandleFinalSigma(false)) },
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// TODO: use a shared copy for these casers as well, in order of
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// importance, starting with the most important:
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// func() Caser { return Title(language.Und) },
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// func() Caser { return Title(language.Und, HandleFinalSigma(false)) },
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} {
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testtext.Run(t, "", func(t *testing.T) {
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var c Caser
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v := testtext.AllocsPerRun(10, func() {
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c = f()
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})
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if v > 0 {
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// TODO: Right now only Upper has 1 allocation. Special-case Lower
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// and Title as well to have less allocations for the root locale.
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t.Errorf("%d:init: number of allocs was %f; want 0", i, v)
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}
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v = testtext.AllocsPerRun(2, func() {
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c.Transform(dst, src, true)
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})
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if v > 0 {
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t.Errorf("%d:transform: number of allocs was %f; want 0", i, v)
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}
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})
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}
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}
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func testHandover(t *testing.T, c Caser, src string) {
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want := c.String(src)
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// Find the common prefix.
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pSrc := 0
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for ; pSrc < len(src) && pSrc < len(want) && want[pSrc] == src[pSrc]; pSrc++ {
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}
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// Test handover for each substring of the prefix.
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for i := 0; i < pSrc; i++ {
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testtext.Run(t, fmt.Sprint("interleave/", i), func(t *testing.T) {
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dst := make([]byte, 4*len(src))
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c.Reset()
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nSpan, _ := c.Span([]byte(src[:i]), false)
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copy(dst, src[:nSpan])
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nTransform, _, _ := c.Transform(dst[nSpan:], []byte(src[nSpan:]), true)
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got := string(dst[:nSpan+nTransform])
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if got != want {
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t.Errorf("full string: got %q; want %q", got, want)
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}
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})
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}
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}
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func TestHandover(t *testing.T) {
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testCases := []struct {
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desc string
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t Caser
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first, second string
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}{{
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"title/nosigma/single midword",
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Title(language.Und, HandleFinalSigma(false)),
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"A.", "a",
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}, {
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"title/nosigma/single midword",
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Title(language.Und, HandleFinalSigma(false)),
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"A", ".a",
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}, {
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"title/nosigma/double midword",
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Title(language.Und, HandleFinalSigma(false)),
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"A..", "a",
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}, {
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"title/nosigma/double midword",
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Title(language.Und, HandleFinalSigma(false)),
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"A.", ".a",
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}, {
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"title/nosigma/double midword",
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Title(language.Und, HandleFinalSigma(false)),
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"A", "..a",
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}, {
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"title/sigma/single midword",
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Title(language.Und),
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"ΟΣ.", "a",
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}, {
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"title/sigma/single midword",
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Title(language.Und),
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"ΟΣ", ".a",
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}, {
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"title/sigma/double midword",
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Title(language.Und),
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"ΟΣ..", "a",
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}, {
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"title/sigma/double midword",
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Title(language.Und),
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"ΟΣ.", ".a",
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}, {
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"title/sigma/double midword",
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Title(language.Und),
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"ΟΣ", "..a",
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}, {
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"title/af/leading apostrophe",
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Title(language.Afrikaans),
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"'", "n bietje",
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}}
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for _, tc := range testCases {
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testtext.Run(t, tc.desc, func(t *testing.T) {
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src := tc.first + tc.second
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want := tc.t.String(src)
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tc.t.Reset()
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n, _ := tc.t.Span([]byte(tc.first), false)
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dst := make([]byte, len(want))
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copy(dst, tc.first[:n])
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nDst, _, _ := tc.t.Transform(dst[n:], []byte(src[n:]), true)
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got := string(dst[:n+nDst])
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if got != want {
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t.Errorf("got %q; want %q", got, want)
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}
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})
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}
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}
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// minBufSize is the size of the buffer by which the casing operation in
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// this package are guaranteed to make progress.
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const minBufSize = norm.MaxSegmentSize
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type bufferTest struct {
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desc, src, want string
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firstErr error
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dstSize, srcSize int
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t transform.SpanningTransformer
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}
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var bufferTests []bufferTest
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func init() {
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bufferTests = []bufferTest{{
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desc: "und/upper/short dst",
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src: "abcdefg",
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want: "ABCDEFG",
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firstErr: transform.ErrShortDst,
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dstSize: 3,
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srcSize: minBufSize,
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t: Upper(language.Und),
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}, {
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desc: "und/upper/short src",
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src: "123é56",
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want: "123É56",
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firstErr: transform.ErrShortSrc,
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dstSize: 4,
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srcSize: 4,
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t: Upper(language.Und),
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}, {
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desc: "und/upper/no error on short",
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src: "12",
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want: "12",
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firstErr: nil,
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dstSize: 1,
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srcSize: 1,
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t: Upper(language.Und),
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}, {
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desc: "und/lower/short dst",
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src: "ABCDEFG",
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want: "abcdefg",
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firstErr: transform.ErrShortDst,
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dstSize: 3,
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srcSize: minBufSize,
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t: Lower(language.Und),
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}, {
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desc: "und/lower/short src",
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src: "123É56",
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want: "123é56",
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firstErr: transform.ErrShortSrc,
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dstSize: 4,
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srcSize: 4,
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t: Lower(language.Und),
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}, {
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desc: "und/lower/no error on short",
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src: "12",
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want: "12",
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firstErr: nil,
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dstSize: 1,
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srcSize: 1,
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t: Lower(language.Und),
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}, {
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desc: "und/lower/simple (no final sigma)",
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src: "ΟΣ ΟΣΣ",
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want: "οσ οσσ",
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dstSize: minBufSize,
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srcSize: minBufSize,
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t: Lower(language.Und, HandleFinalSigma(false)),
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}, {
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desc: "und/title/simple (no final sigma)",
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src: "ΟΣ ΟΣΣ",
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want: "Οσ Οσσ",
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dstSize: minBufSize,
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srcSize: minBufSize,
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t: Title(language.Und, HandleFinalSigma(false)),
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}, {
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desc: "und/title/final sigma: no error",
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src: "ΟΣ",
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want: "Ος",
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dstSize: minBufSize,
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srcSize: minBufSize,
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t: Title(language.Und),
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}, {
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desc: "und/title/final sigma: short source",
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src: "ΟΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣ",
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want: "Οσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσς",
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firstErr: transform.ErrShortSrc,
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dstSize: minBufSize,
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srcSize: 10,
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t: Title(language.Und),
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}, {
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desc: "und/title/final sigma: short destination 1",
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src: "ΟΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣ",
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want: "Οσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσς",
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firstErr: transform.ErrShortDst,
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dstSize: 10,
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srcSize: minBufSize,
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t: Title(language.Und),
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}, {
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desc: "und/title/final sigma: short destination 2",
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src: "ΟΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣ",
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want: "Οσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσς",
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firstErr: transform.ErrShortDst,
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dstSize: 9,
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srcSize: minBufSize,
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t: Title(language.Und),
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}, {
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desc: "und/title/final sigma: short destination 3",
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src: "ΟΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣΣ",
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want: "Οσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσς",
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firstErr: transform.ErrShortDst,
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dstSize: 8,
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srcSize: minBufSize,
|
||
t: Title(language.Und),
|
||
}, {
|
||
desc: "und/title/clipped UTF-8 rune",
|
||
src: "σσσσσσσσσσσ",
|
||
want: "Σσσσσσσσσσσ",
|
||
firstErr: transform.ErrShortSrc,
|
||
dstSize: minBufSize,
|
||
srcSize: 5,
|
||
t: Title(language.Und),
|
||
}, {
|
||
desc: "und/title/clipped UTF-8 rune atEOF",
|
||
src: "σσσ" + string([]byte{0xCF}),
|
||
want: "Σσσ" + string([]byte{0xCF}),
|
||
dstSize: minBufSize,
|
||
srcSize: minBufSize,
|
||
t: Title(language.Und),
|
||
}, {
|
||
// Note: the choice to change the final sigma at the end in case of
|
||
// too many case ignorables is arbitrary. The main reason for this
|
||
// choice is that it results in simpler code.
|
||
desc: "und/title/final sigma: max ignorables",
|
||
src: "ΟΣ" + strings.Repeat(".", maxIgnorable) + "a",
|
||
want: "Οσ" + strings.Repeat(".", maxIgnorable) + "A",
|
||
dstSize: minBufSize,
|
||
srcSize: minBufSize,
|
||
t: Title(language.Und),
|
||
}, {
|
||
// Note: the choice to change the final sigma at the end in case of
|
||
// too many case ignorables is arbitrary. The main reason for this
|
||
// choice is that it results in simpler code.
|
||
desc: "und/title/long string",
|
||
src: "AA" + strings.Repeat(".", maxIgnorable+1) + "a",
|
||
want: "Aa" + strings.Repeat(".", maxIgnorable+1) + "A",
|
||
dstSize: minBufSize,
|
||
srcSize: len("AA" + strings.Repeat(".", maxIgnorable+1)),
|
||
t: Title(language.Und),
|
||
}, {
|
||
// Note: the choice to change the final sigma at the end in case of
|
||
// too many case ignorables is arbitrary. The main reason for this
|
||
// choice is that it results in simpler code.
|
||
desc: "und/title/final sigma: too many ignorables",
|
||
src: "ΟΣ" + strings.Repeat(".", maxIgnorable+1) + "a",
|
||
want: "Ος" + strings.Repeat(".", maxIgnorable+1) + "A",
|
||
dstSize: minBufSize,
|
||
srcSize: len("ΟΣ" + strings.Repeat(".", maxIgnorable+1)),
|
||
t: Title(language.Und),
|
||
}, {
|
||
desc: "und/title/final sigma: apostrophe",
|
||
src: "ΟΣ''a",
|
||
want: "Οσ''A",
|
||
dstSize: minBufSize,
|
||
srcSize: minBufSize,
|
||
t: Title(language.Und),
|
||
}, {
|
||
desc: "el/upper/max ignorables",
|
||
src: "ο" + strings.Repeat("\u0321", maxIgnorable-1) + "\u0313",
|
||
want: "Ο" + strings.Repeat("\u0321", maxIgnorable-1),
|
||
dstSize: minBufSize,
|
||
srcSize: minBufSize,
|
||
t: Upper(language.Greek),
|
||
}, {
|
||
desc: "el/upper/too many ignorables",
|
||
src: "ο" + strings.Repeat("\u0321", maxIgnorable) + "\u0313",
|
||
want: "Ο" + strings.Repeat("\u0321", maxIgnorable) + "\u0313",
|
||
dstSize: minBufSize,
|
||
srcSize: len("ο" + strings.Repeat("\u0321", maxIgnorable)),
|
||
t: Upper(language.Greek),
|
||
}, {
|
||
desc: "el/upper/short dst",
|
||
src: "123ο",
|
||
want: "123Ο",
|
||
firstErr: transform.ErrShortDst,
|
||
dstSize: 3,
|
||
srcSize: minBufSize,
|
||
t: Upper(language.Greek),
|
||
}, {
|
||
desc: "lt/lower/max ignorables",
|
||
src: "I" + strings.Repeat("\u0321", maxIgnorable-1) + "\u0300",
|
||
want: "i" + strings.Repeat("\u0321", maxIgnorable-1) + "\u0307\u0300",
|
||
dstSize: minBufSize,
|
||
srcSize: minBufSize,
|
||
t: Lower(language.Lithuanian),
|
||
}, {
|
||
desc: "lt/lower/too many ignorables",
|
||
src: "I" + strings.Repeat("\u0321", maxIgnorable) + "\u0300",
|
||
want: "i" + strings.Repeat("\u0321", maxIgnorable) + "\u0300",
|
||
dstSize: minBufSize,
|
||
srcSize: len("I" + strings.Repeat("\u0321", maxIgnorable)),
|
||
t: Lower(language.Lithuanian),
|
||
}, {
|
||
desc: "lt/lower/decomposition with short dst buffer 1",
|
||
src: "aaaaa\u00cc", // U+00CC LATIN CAPITAL LETTER I GRAVE
|
||
firstErr: transform.ErrShortDst,
|
||
want: "aaaaai\u0307\u0300",
|
||
dstSize: 5,
|
||
srcSize: minBufSize,
|
||
t: Lower(language.Lithuanian),
|
||
}, {
|
||
desc: "lt/lower/decomposition with short dst buffer 2",
|
||
src: "aaaa\u00cc", // U+00CC LATIN CAPITAL LETTER I GRAVE
|
||
firstErr: transform.ErrShortDst,
|
||
want: "aaaai\u0307\u0300",
|
||
dstSize: 5,
|
||
srcSize: minBufSize,
|
||
t: Lower(language.Lithuanian),
|
||
}, {
|
||
desc: "lt/upper/max ignorables",
|
||
src: "i" + strings.Repeat("\u0321", maxIgnorable-1) + "\u0307\u0300",
|
||
want: "I" + strings.Repeat("\u0321", maxIgnorable-1) + "\u0300",
|
||
dstSize: minBufSize,
|
||
srcSize: minBufSize,
|
||
t: Upper(language.Lithuanian),
|
||
}, {
|
||
desc: "lt/upper/too many ignorables",
|
||
src: "i" + strings.Repeat("\u0321", maxIgnorable) + "\u0307\u0300",
|
||
want: "I" + strings.Repeat("\u0321", maxIgnorable) + "\u0307\u0300",
|
||
dstSize: minBufSize,
|
||
srcSize: len("i" + strings.Repeat("\u0321", maxIgnorable)),
|
||
t: Upper(language.Lithuanian),
|
||
}, {
|
||
desc: "lt/upper/short dst",
|
||
src: "12i\u0307\u0300",
|
||
want: "12\u00cc",
|
||
firstErr: transform.ErrShortDst,
|
||
dstSize: 3,
|
||
srcSize: minBufSize,
|
||
t: Upper(language.Lithuanian),
|
||
}, {
|
||
desc: "aztr/lower/max ignorables",
|
||
src: "I" + strings.Repeat("\u0321", maxIgnorable-1) + "\u0307\u0300",
|
||
want: "i" + strings.Repeat("\u0321", maxIgnorable-1) + "\u0300",
|
||
dstSize: minBufSize,
|
||
srcSize: minBufSize,
|
||
t: Lower(language.Turkish),
|
||
}, {
|
||
desc: "aztr/lower/too many ignorables",
|
||
src: "I" + strings.Repeat("\u0321", maxIgnorable) + "\u0307\u0300",
|
||
want: "\u0131" + strings.Repeat("\u0321", maxIgnorable) + "\u0307\u0300",
|
||
dstSize: minBufSize,
|
||
srcSize: len("I" + strings.Repeat("\u0321", maxIgnorable)),
|
||
t: Lower(language.Turkish),
|
||
}, {
|
||
desc: "nl/title/pre-IJ cutoff",
|
||
src: " ij",
|
||
want: " IJ",
|
||
firstErr: transform.ErrShortDst,
|
||
dstSize: 2,
|
||
srcSize: minBufSize,
|
||
t: Title(language.Dutch),
|
||
}, {
|
||
desc: "nl/title/mid-IJ cutoff",
|
||
src: " ij",
|
||
want: " IJ",
|
||
firstErr: transform.ErrShortDst,
|
||
dstSize: 3,
|
||
srcSize: minBufSize,
|
||
t: Title(language.Dutch),
|
||
}, {
|
||
desc: "af/title/apostrophe",
|
||
src: "'n bietje",
|
||
want: "'n Bietje",
|
||
firstErr: transform.ErrShortDst,
|
||
dstSize: 3,
|
||
srcSize: minBufSize,
|
||
t: Title(language.Afrikaans),
|
||
}}
|
||
}
|
||
|
||
func TestShortBuffersAndOverflow(t *testing.T) {
|
||
for i, tt := range bufferTests {
|
||
testtext.Run(t, tt.desc, func(t *testing.T) {
|
||
buf := make([]byte, tt.dstSize)
|
||
got := []byte{}
|
||
var nSrc, nDst int
|
||
var err error
|
||
for p := 0; p < len(tt.src); p += nSrc {
|
||
q := p + tt.srcSize
|
||
if q > len(tt.src) {
|
||
q = len(tt.src)
|
||
}
|
||
nDst, nSrc, err = tt.t.Transform(buf, []byte(tt.src[p:q]), q == len(tt.src))
|
||
got = append(got, buf[:nDst]...)
|
||
|
||
if p == 0 && err != tt.firstErr {
|
||
t.Errorf("%d:%s:\n error was %v; want %v", i, tt.desc, err, tt.firstErr)
|
||
break
|
||
}
|
||
}
|
||
if string(got) != tt.want {
|
||
t.Errorf("%d:%s:\ngot %+q;\nwant %+q", i, tt.desc, got, tt.want)
|
||
}
|
||
testHandover(t, Caser{tt.t}, tt.src)
|
||
})
|
||
}
|
||
}
|
||
|
||
func TestSpan(t *testing.T) {
|
||
for _, tt := range []struct {
|
||
desc string
|
||
src string
|
||
want string
|
||
atEOF bool
|
||
err error
|
||
t Caser
|
||
}{{
|
||
desc: "und/upper/basic",
|
||
src: "abcdefg",
|
||
want: "",
|
||
atEOF: true,
|
||
err: transform.ErrEndOfSpan,
|
||
t: Upper(language.Und),
|
||
}, {
|
||
desc: "und/upper/short src",
|
||
src: "123É"[:4],
|
||
want: "123",
|
||
atEOF: false,
|
||
err: transform.ErrShortSrc,
|
||
t: Upper(language.Und),
|
||
}, {
|
||
desc: "und/upper/no error on short",
|
||
src: "12",
|
||
want: "12",
|
||
atEOF: false,
|
||
t: Upper(language.Und),
|
||
}, {
|
||
desc: "und/lower/basic",
|
||
src: "ABCDEFG",
|
||
want: "",
|
||
atEOF: true,
|
||
err: transform.ErrEndOfSpan,
|
||
t: Lower(language.Und),
|
||
}, {
|
||
desc: "und/lower/short src num",
|
||
src: "123é"[:4],
|
||
want: "123",
|
||
atEOF: false,
|
||
err: transform.ErrShortSrc,
|
||
t: Lower(language.Und),
|
||
}, {
|
||
desc: "und/lower/short src greek",
|
||
src: "αβγé"[:7],
|
||
want: "αβγ",
|
||
atEOF: false,
|
||
err: transform.ErrShortSrc,
|
||
t: Lower(language.Und),
|
||
}, {
|
||
desc: "und/lower/no error on short",
|
||
src: "12",
|
||
want: "12",
|
||
atEOF: false,
|
||
t: Lower(language.Und),
|
||
}, {
|
||
desc: "und/lower/simple (no final sigma)",
|
||
src: "ος οσσ",
|
||
want: "οσ οσσ",
|
||
atEOF: true,
|
||
t: Lower(language.Und, HandleFinalSigma(false)),
|
||
}, {
|
||
desc: "und/title/simple (no final sigma)",
|
||
src: "Οσ Οσσ",
|
||
want: "Οσ Οσσ",
|
||
atEOF: true,
|
||
t: Title(language.Und, HandleFinalSigma(false)),
|
||
}, {
|
||
desc: "und/lower/final sigma: no error",
|
||
src: "οΣ", // Oς
|
||
want: "ο", // Oς
|
||
err: transform.ErrEndOfSpan,
|
||
t: Lower(language.Und),
|
||
}, {
|
||
desc: "und/title/final sigma: no error",
|
||
src: "ΟΣ", // Oς
|
||
want: "Ο", // Oς
|
||
err: transform.ErrEndOfSpan,
|
||
t: Title(language.Und),
|
||
}, {
|
||
desc: "und/title/final sigma: no short source!",
|
||
src: "ΟσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσΣ",
|
||
want: "Οσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσσ",
|
||
err: transform.ErrEndOfSpan,
|
||
t: Title(language.Und),
|
||
}, {
|
||
desc: "und/title/clipped UTF-8 rune",
|
||
src: "Σσ" + string([]byte{0xCF}),
|
||
want: "Σσ",
|
||
atEOF: false,
|
||
err: transform.ErrShortSrc,
|
||
t: Title(language.Und),
|
||
}, {
|
||
desc: "und/title/clipped UTF-8 rune atEOF",
|
||
src: "Σσσ" + string([]byte{0xCF}),
|
||
want: "Σσσ" + string([]byte{0xCF}),
|
||
atEOF: true,
|
||
t: Title(language.Und),
|
||
}, {
|
||
// Note: the choice to change the final sigma at the end in case of
|
||
// too many case ignorables is arbitrary. The main reason for this
|
||
// choice is that it results in simpler code.
|
||
desc: "und/title/long string",
|
||
src: "A" + strings.Repeat("a", maxIgnorable+5),
|
||
want: "A" + strings.Repeat("a", maxIgnorable+5),
|
||
t: Title(language.Und),
|
||
}, {
|
||
// Note: the choice to change the final sigma at the end in case of
|
||
// too many case ignorables is arbitrary. The main reason for this
|
||
// choice is that it results in simpler code.
|
||
desc: "und/title/cyrillic",
|
||
src: "При",
|
||
want: "При",
|
||
atEOF: true,
|
||
t: Title(language.Und, HandleFinalSigma(false)),
|
||
}, {
|
||
// Note: the choice to change the final sigma at the end in case of
|
||
// too many case ignorables is arbitrary. The main reason for this
|
||
// choice is that it results in simpler code.
|
||
desc: "und/title/final sigma: max ignorables",
|
||
src: "Οσ" + strings.Repeat(".", maxIgnorable) + "A",
|
||
want: "Οσ" + strings.Repeat(".", maxIgnorable) + "A",
|
||
t: Title(language.Und),
|
||
}, {
|
||
desc: "el/upper/max ignorables - not implemented",
|
||
src: "Ο" + strings.Repeat("\u0321", maxIgnorable-1) + "\u0313",
|
||
want: "",
|
||
err: transform.ErrEndOfSpan,
|
||
t: Upper(language.Greek),
|
||
}, {
|
||
desc: "el/upper/too many ignorables - not implemented",
|
||
src: "Ο" + strings.Repeat("\u0321", maxIgnorable) + "\u0313",
|
||
want: "",
|
||
err: transform.ErrEndOfSpan,
|
||
t: Upper(language.Greek),
|
||
}, {
|
||
desc: "el/upper/short dst",
|
||
src: "123ο",
|
||
want: "",
|
||
err: transform.ErrEndOfSpan,
|
||
t: Upper(language.Greek),
|
||
}, {
|
||
desc: "lt/lower/max ignorables",
|
||
src: "i" + strings.Repeat("\u0321", maxIgnorable-1) + "\u0307\u0300",
|
||
want: "i" + strings.Repeat("\u0321", maxIgnorable-1) + "\u0307\u0300",
|
||
t: Lower(language.Lithuanian),
|
||
}, {
|
||
desc: "lt/lower/isLower",
|
||
src: "I" + strings.Repeat("\u0321", maxIgnorable) + "\u0300",
|
||
want: "",
|
||
err: transform.ErrEndOfSpan,
|
||
t: Lower(language.Lithuanian),
|
||
}, {
|
||
desc: "lt/lower/not identical",
|
||
src: "aaaaa\u00cc", // U+00CC LATIN CAPITAL LETTER I GRAVE
|
||
err: transform.ErrEndOfSpan,
|
||
want: "aaaaa",
|
||
t: Lower(language.Lithuanian),
|
||
}, {
|
||
desc: "lt/lower/identical",
|
||
src: "aaaai\u0307\u0300", // U+00CC LATIN CAPITAL LETTER I GRAVE
|
||
want: "aaaai\u0307\u0300",
|
||
t: Lower(language.Lithuanian),
|
||
}, {
|
||
desc: "lt/upper/not implemented",
|
||
src: "I" + strings.Repeat("\u0321", maxIgnorable-1) + "\u0300",
|
||
want: "",
|
||
err: transform.ErrEndOfSpan,
|
||
t: Upper(language.Lithuanian),
|
||
}, {
|
||
desc: "lt/upper/not implemented, ascii",
|
||
src: "AB",
|
||
want: "",
|
||
err: transform.ErrEndOfSpan,
|
||
t: Upper(language.Lithuanian),
|
||
}, {
|
||
desc: "nl/title/pre-IJ cutoff",
|
||
src: " IJ",
|
||
want: " IJ",
|
||
t: Title(language.Dutch),
|
||
}, {
|
||
desc: "nl/title/mid-IJ cutoff",
|
||
src: " Ia",
|
||
want: " Ia",
|
||
t: Title(language.Dutch),
|
||
}, {
|
||
desc: "af/title/apostrophe",
|
||
src: "'n Bietje",
|
||
want: "'n Bietje",
|
||
t: Title(language.Afrikaans),
|
||
}, {
|
||
desc: "af/title/apostrophe-incorrect",
|
||
src: "'N Bietje",
|
||
// The Single_Quote (a MidWord), needs to be retained as unspanned so
|
||
// that a successive call to Transform can detect that N should not be
|
||
// capitalized.
|
||
want: "",
|
||
err: transform.ErrEndOfSpan,
|
||
t: Title(language.Afrikaans),
|
||
}} {
|
||
testtext.Run(t, tt.desc, func(t *testing.T) {
|
||
for p := 0; p < len(tt.want); p += utf8.RuneLen([]rune(tt.src[p:])[0]) {
|
||
tt.t.Reset()
|
||
n, err := tt.t.Span([]byte(tt.src[:p]), false)
|
||
if err != nil && err != transform.ErrShortSrc {
|
||
t.Errorf("early failure:Span(%+q): %v (%d < %d)", tt.src[:p], err, n, len(tt.want))
|
||
break
|
||
}
|
||
}
|
||
tt.t.Reset()
|
||
n, err := tt.t.Span([]byte(tt.src), tt.atEOF)
|
||
if n != len(tt.want) || err != tt.err {
|
||
t.Errorf("Span(%+q, %v): got %d, %v; want %d, %v", tt.src, tt.atEOF, n, err, len(tt.want), tt.err)
|
||
}
|
||
testHandover(t, tt.t, tt.src)
|
||
})
|
||
}
|
||
}
|
||
|
||
var txtASCII = strings.Repeat("The quick brown fox jumps over the lazy dog. ", 50)
|
||
|
||
// Taken from http://creativecommons.org/licenses/by-sa/3.0/vn/
|
||
const txt_vn = `Với các điều kiện sau: Ghi nhận công của tác giả. Nếu bạn sử
|
||
dụng, chuyển đổi, hoặc xây dựng dự án từ nội dung được chia sẻ này, bạn phải áp
|
||
dụng giấy phép này hoặc một giấy phép khác có các điều khoản tương tự như giấy
|
||
phép này cho dự án của bạn. Hiểu rằng: Miễn — Bất kỳ các điều kiện nào trên đây
|
||
cũng có thể được miễn bỏ nếu bạn được sự cho phép của người sở hữu bản quyền.
|
||
Phạm vi công chúng — Khi tác phẩm hoặc bất kỳ chương nào của tác phẩm đã trong
|
||
vùng dành cho công chúng theo quy định của pháp luật thì tình trạng của nó không
|
||
bị ảnh hưởng bởi giấy phép trong bất kỳ trường hợp nào.`
|
||
|
||
// http://creativecommons.org/licenses/by-sa/2.5/cn/
|
||
const txt_cn = `您可以自由： 复制、发行、展览、表演、放映、
|
||
广播或通过信息网络传播本作品 创作演绎作品
|
||
对本作品进行商业性使用 惟须遵守下列条件：
|
||
署名 — 您必须按照作者或者许可人指定的方式对作品进行署名。
|
||
相同方式共享 — 如果您改变、转换本作品或者以本作品为基础进行创作，
|
||
您只能采用与本协议相同的许可协议发布基于本作品的演绎作品。`
|
||
|
||
// Taken from http://creativecommons.org/licenses/by-sa/1.0/deed.ru
|
||
const txt_ru = `При обязательном соблюдении следующих условий: Attribution — Вы
|
||
должны атрибутировать произведение (указывать автора и источник) в порядке,
|
||
предусмотренном автором или лицензиаром (но только так, чтобы никоим образом не
|
||
подразумевалось, что они поддерживают вас или использование вами данного
|
||
произведения). Υπό τις ακόλουθες προϋποθέσεις:`
|
||
|
||
// Taken from http://creativecommons.org/licenses/by-sa/3.0/gr/
|
||
const txt_gr = `Αναφορά Δημιουργού — Θα πρέπει να κάνετε την αναφορά στο έργο με
|
||
τον τρόπο που έχει οριστεί από το δημιουργό ή το χορηγούντο την άδεια (χωρίς
|
||
όμως να εννοείται με οποιονδήποτε τρόπο ότι εγκρίνουν εσάς ή τη χρήση του έργου
|
||
από εσάς). Παρόμοια Διανομή — Εάν αλλοιώσετε, τροποποιήσετε ή δημιουργήσετε
|
||
περαιτέρω βασισμένοι στο έργο θα μπορείτε να διανέμετε το έργο που θα προκύψει
|
||
μόνο με την ίδια ή παρόμοια άδεια.`
|
||
|
||
const txtNonASCII = txt_vn + txt_cn + txt_ru + txt_gr
|
||
|
||
// TODO: Improve ASCII performance.
|
||
|
||
func BenchmarkCasers(b *testing.B) {
|
||
for _, s := range []struct{ name, text string }{
|
||
{"ascii", txtASCII},
|
||
{"nonASCII", txtNonASCII},
|
||
{"short", "При"},
|
||
} {
|
||
src := []byte(s.text)
|
||
// Measure case mappings in bytes package for comparison.
|
||
for _, f := range []struct {
|
||
name string
|
||
fn func(b []byte) []byte
|
||
}{
|
||
{"lower", bytes.ToLower},
|
||
{"title", bytes.ToTitle},
|
||
{"upper", bytes.ToUpper},
|
||
} {
|
||
testtext.Bench(b, path.Join(s.name, "bytes", f.name), func(b *testing.B) {
|
||
b.SetBytes(int64(len(src)))
|
||
for i := 0; i < b.N; i++ {
|
||
f.fn(src)
|
||
}
|
||
})
|
||
}
|
||
for _, t := range []struct {
|
||
name string
|
||
caser transform.SpanningTransformer
|
||
}{
|
||
{"fold/default", Fold()},
|
||
{"upper/default", Upper(language.Und)},
|
||
{"lower/sigma", Lower(language.Und)},
|
||
{"lower/simple", Lower(language.Und, HandleFinalSigma(false))},
|
||
{"title/sigma", Title(language.Und)},
|
||
{"title/simple", Title(language.Und, HandleFinalSigma(false))},
|
||
} {
|
||
c := Caser{t.caser}
|
||
dst := make([]byte, len(src))
|
||
testtext.Bench(b, path.Join(s.name, t.name, "transform"), func(b *testing.B) {
|
||
b.SetBytes(int64(len(src)))
|
||
for i := 0; i < b.N; i++ {
|
||
c.Reset()
|
||
c.Transform(dst, src, true)
|
||
}
|
||
})
|
||
// No need to check span for simple cases, as they will be the same
|
||
// as sigma.
|
||
if strings.HasSuffix(t.name, "/simple") {
|
||
continue
|
||
}
|
||
spanSrc := c.Bytes(src)
|
||
testtext.Bench(b, path.Join(s.name, t.name, "span"), func(b *testing.B) {
|
||
c.Reset()
|
||
if n, _ := c.Span(spanSrc, true); n < len(spanSrc) {
|
||
b.Fatalf("spanner is not recognizing text %q as done (at %d)", spanSrc, n)
|
||
}
|
||
b.SetBytes(int64(len(spanSrc)))
|
||
for i := 0; i < b.N; i++ {
|
||
c.Reset()
|
||
c.Span(spanSrc, true)
|
||
}
|
||
})
|
||
}
|
||
}
|
||
}
|