bf51655a7b
Signed-off-by: Jacek J. Łakis <jacek.lakis@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
438 lines
11 KiB
Go
438 lines
11 KiB
Go
// Copyright 2014 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package cases
|
|
|
|
import (
|
|
"strings"
|
|
"testing"
|
|
"unicode"
|
|
|
|
"golang.org/x/text/internal/testtext"
|
|
"golang.org/x/text/language"
|
|
"golang.org/x/text/transform"
|
|
"golang.org/x/text/unicode/norm"
|
|
"golang.org/x/text/unicode/rangetable"
|
|
)
|
|
|
|
// The following definitions are taken directly from Chapter 3 of The Unicode
|
|
// Standard.
|
|
|
|
func propCased(r rune) bool {
|
|
return propLower(r) || propUpper(r) || unicode.IsTitle(r)
|
|
}
|
|
|
|
func propLower(r rune) bool {
|
|
return unicode.IsLower(r) || unicode.Is(unicode.Other_Lowercase, r)
|
|
}
|
|
|
|
func propUpper(r rune) bool {
|
|
return unicode.IsUpper(r) || unicode.Is(unicode.Other_Uppercase, r)
|
|
}
|
|
|
|
func propIgnore(r rune) bool {
|
|
if unicode.In(r, unicode.Mn, unicode.Me, unicode.Cf, unicode.Lm, unicode.Sk) {
|
|
return true
|
|
}
|
|
return caseIgnorable[r]
|
|
}
|
|
|
|
func hasBreakProp(r rune) bool {
|
|
// binary search over ranges
|
|
lo := 0
|
|
hi := len(breakProp)
|
|
for lo < hi {
|
|
m := lo + (hi-lo)/2
|
|
bp := &breakProp[m]
|
|
if bp.lo <= r && r <= bp.hi {
|
|
return true
|
|
}
|
|
if r < bp.lo {
|
|
hi = m
|
|
} else {
|
|
lo = m + 1
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
func contextFromRune(r rune) *context {
|
|
c := context{dst: make([]byte, 128), src: []byte(string(r)), atEOF: true}
|
|
c.next()
|
|
return &c
|
|
}
|
|
|
|
func TestCaseProperties(t *testing.T) {
|
|
if unicode.Version != UnicodeVersion {
|
|
// Properties of existing code points may change by Unicode version, so
|
|
// we need to skip.
|
|
t.Skipf("Skipping as core Unicode version %s different than %s", unicode.Version, UnicodeVersion)
|
|
}
|
|
assigned := rangetable.Assigned(UnicodeVersion)
|
|
coreVersion := rangetable.Assigned(unicode.Version)
|
|
for r := rune(0); r <= lastRuneForTesting; r++ {
|
|
if !unicode.In(r, assigned) || !unicode.In(r, coreVersion) {
|
|
continue
|
|
}
|
|
c := contextFromRune(r)
|
|
if got, want := c.info.isCaseIgnorable(), propIgnore(r); got != want {
|
|
t.Errorf("caseIgnorable(%U): got %v; want %v (%x)", r, got, want, c.info)
|
|
}
|
|
// New letters may change case types, but existing case pairings should
|
|
// not change. See Case Pair Stability in
|
|
// http://unicode.org/policies/stability_policy.html.
|
|
if rf := unicode.SimpleFold(r); rf != r && unicode.In(rf, assigned) {
|
|
if got, want := c.info.isCased(), propCased(r); got != want {
|
|
t.Errorf("cased(%U): got %v; want %v (%x)", r, got, want, c.info)
|
|
}
|
|
if got, want := c.caseType() == cUpper, propUpper(r); got != want {
|
|
t.Errorf("upper(%U): got %v; want %v (%x)", r, got, want, c.info)
|
|
}
|
|
if got, want := c.caseType() == cLower, propLower(r); got != want {
|
|
t.Errorf("lower(%U): got %v; want %v (%x)", r, got, want, c.info)
|
|
}
|
|
}
|
|
if got, want := c.info.isBreak(), hasBreakProp(r); got != want {
|
|
t.Errorf("isBreak(%U): got %v; want %v (%x)", r, got, want, c.info)
|
|
}
|
|
}
|
|
// TODO: get title case from unicode file.
|
|
}
|
|
|
|
func TestMapping(t *testing.T) {
|
|
assigned := rangetable.Assigned(UnicodeVersion)
|
|
coreVersion := rangetable.Assigned(unicode.Version)
|
|
if coreVersion == nil {
|
|
coreVersion = assigned
|
|
}
|
|
apply := func(r rune, f func(c *context) bool) string {
|
|
c := contextFromRune(r)
|
|
f(c)
|
|
return string(c.dst[:c.pDst])
|
|
}
|
|
|
|
for r, tt := range special {
|
|
if got, want := apply(r, lower), tt.toLower; got != want {
|
|
t.Errorf("lowerSpecial:(%U): got %+q; want %+q", r, got, want)
|
|
}
|
|
if got, want := apply(r, title), tt.toTitle; got != want {
|
|
t.Errorf("titleSpecial:(%U): got %+q; want %+q", r, got, want)
|
|
}
|
|
if got, want := apply(r, upper), tt.toUpper; got != want {
|
|
t.Errorf("upperSpecial:(%U): got %+q; want %+q", r, got, want)
|
|
}
|
|
}
|
|
|
|
for r := rune(0); r <= lastRuneForTesting; r++ {
|
|
if !unicode.In(r, assigned) || !unicode.In(r, coreVersion) {
|
|
continue
|
|
}
|
|
if rf := unicode.SimpleFold(r); rf == r || !unicode.In(rf, assigned) {
|
|
continue
|
|
}
|
|
if _, ok := special[r]; ok {
|
|
continue
|
|
}
|
|
want := string(unicode.ToLower(r))
|
|
if got := apply(r, lower); got != want {
|
|
t.Errorf("lower:%q (%U): got %q %U; want %q %U", r, r, got, []rune(got), want, []rune(want))
|
|
}
|
|
|
|
want = string(unicode.ToUpper(r))
|
|
if got := apply(r, upper); got != want {
|
|
t.Errorf("upper:%q (%U): got %q %U; want %q %U", r, r, got, []rune(got), want, []rune(want))
|
|
}
|
|
|
|
want = string(unicode.ToTitle(r))
|
|
if got := apply(r, title); got != want {
|
|
t.Errorf("title:%q (%U): got %q %U; want %q %U", r, r, got, []rune(got), want, []rune(want))
|
|
}
|
|
}
|
|
}
|
|
|
|
func runeFoldData(r rune) (x struct{ simple, full, special string }) {
|
|
x = foldMap[r]
|
|
if x.simple == "" {
|
|
x.simple = string(unicode.ToLower(r))
|
|
}
|
|
if x.full == "" {
|
|
x.full = string(unicode.ToLower(r))
|
|
}
|
|
if x.special == "" {
|
|
x.special = x.full
|
|
}
|
|
return
|
|
}
|
|
|
|
func TestFoldData(t *testing.T) {
|
|
assigned := rangetable.Assigned(UnicodeVersion)
|
|
coreVersion := rangetable.Assigned(unicode.Version)
|
|
if coreVersion == nil {
|
|
coreVersion = assigned
|
|
}
|
|
apply := func(r rune, f func(c *context) bool) (string, info) {
|
|
c := contextFromRune(r)
|
|
f(c)
|
|
return string(c.dst[:c.pDst]), c.info.cccType()
|
|
}
|
|
for r := rune(0); r <= lastRuneForTesting; r++ {
|
|
if !unicode.In(r, assigned) || !unicode.In(r, coreVersion) {
|
|
continue
|
|
}
|
|
x := runeFoldData(r)
|
|
if got, info := apply(r, foldFull); got != x.full {
|
|
t.Errorf("full:%q (%U): got %q %U; want %q %U (ccc=%x)", r, r, got, []rune(got), x.full, []rune(x.full), info)
|
|
}
|
|
// TODO: special and simple.
|
|
}
|
|
}
|
|
|
|
func TestCCC(t *testing.T) {
|
|
assigned := rangetable.Assigned(UnicodeVersion)
|
|
normVersion := rangetable.Assigned(norm.Version)
|
|
for r := rune(0); r <= lastRuneForTesting; r++ {
|
|
if !unicode.In(r, assigned) || !unicode.In(r, normVersion) {
|
|
continue
|
|
}
|
|
c := contextFromRune(r)
|
|
|
|
p := norm.NFC.PropertiesString(string(r))
|
|
want := cccOther
|
|
switch p.CCC() {
|
|
case 0:
|
|
want = cccZero
|
|
case above:
|
|
want = cccAbove
|
|
}
|
|
if got := c.info.cccType(); got != want {
|
|
t.Errorf("%U: got %x; want %x", r, got, want)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestWordBreaks(t *testing.T) {
|
|
for _, tt := range breakTest {
|
|
testtext.Run(t, tt, func(t *testing.T) {
|
|
parts := strings.Split(tt, "|")
|
|
want := ""
|
|
for _, s := range parts {
|
|
found := false
|
|
// This algorithm implements title casing given word breaks
|
|
// as defined in the Unicode standard 3.13 R3.
|
|
for _, r := range s {
|
|
title := unicode.ToTitle(r)
|
|
lower := unicode.ToLower(r)
|
|
if !found && title != lower {
|
|
found = true
|
|
want += string(title)
|
|
} else {
|
|
want += string(lower)
|
|
}
|
|
}
|
|
}
|
|
src := strings.Join(parts, "")
|
|
got := Title(language.Und).String(src)
|
|
if got != want {
|
|
t.Errorf("got %q; want %q", got, want)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestContext(t *testing.T) {
|
|
tests := []struct {
|
|
desc string
|
|
dstSize int
|
|
atEOF bool
|
|
src string
|
|
out string
|
|
nSrc int
|
|
err error
|
|
ops string
|
|
prefixArg string
|
|
prefixWant bool
|
|
}{{
|
|
desc: "next: past end, atEOF, no checkpoint",
|
|
dstSize: 10,
|
|
atEOF: true,
|
|
src: "12",
|
|
out: "",
|
|
nSrc: 2,
|
|
ops: "next;next;next",
|
|
// Test that calling prefix with a non-empty argument when the buffer
|
|
// is depleted returns false.
|
|
prefixArg: "x",
|
|
prefixWant: false,
|
|
}, {
|
|
desc: "next: not at end, atEOF, no checkpoint",
|
|
dstSize: 10,
|
|
atEOF: false,
|
|
src: "12",
|
|
out: "",
|
|
nSrc: 0,
|
|
err: transform.ErrShortSrc,
|
|
ops: "next;next",
|
|
prefixArg: "",
|
|
prefixWant: true,
|
|
}, {
|
|
desc: "next: past end, !atEOF, no checkpoint",
|
|
dstSize: 10,
|
|
atEOF: false,
|
|
src: "12",
|
|
out: "",
|
|
nSrc: 0,
|
|
err: transform.ErrShortSrc,
|
|
ops: "next;next;next",
|
|
prefixArg: "",
|
|
prefixWant: true,
|
|
}, {
|
|
desc: "next: past end, !atEOF, checkpoint",
|
|
dstSize: 10,
|
|
atEOF: false,
|
|
src: "12",
|
|
out: "",
|
|
nSrc: 2,
|
|
ops: "next;next;checkpoint;next",
|
|
prefixArg: "",
|
|
prefixWant: true,
|
|
}, {
|
|
desc: "copy: exact count, atEOF, no checkpoint",
|
|
dstSize: 2,
|
|
atEOF: true,
|
|
src: "12",
|
|
out: "12",
|
|
nSrc: 2,
|
|
ops: "next;copy;next;copy;next",
|
|
prefixArg: "",
|
|
prefixWant: true,
|
|
}, {
|
|
desc: "copy: past end, !atEOF, no checkpoint",
|
|
dstSize: 2,
|
|
atEOF: false,
|
|
src: "12",
|
|
out: "",
|
|
nSrc: 0,
|
|
err: transform.ErrShortSrc,
|
|
ops: "next;copy;next;copy;next",
|
|
prefixArg: "",
|
|
prefixWant: true,
|
|
}, {
|
|
desc: "copy: past end, !atEOF, checkpoint",
|
|
dstSize: 2,
|
|
atEOF: false,
|
|
src: "12",
|
|
out: "12",
|
|
nSrc: 2,
|
|
ops: "next;copy;next;copy;checkpoint;next",
|
|
prefixArg: "",
|
|
prefixWant: true,
|
|
}, {
|
|
desc: "copy: short dst",
|
|
dstSize: 1,
|
|
atEOF: false,
|
|
src: "12",
|
|
out: "",
|
|
nSrc: 0,
|
|
err: transform.ErrShortDst,
|
|
ops: "next;copy;next;copy;checkpoint;next",
|
|
prefixArg: "12",
|
|
prefixWant: false,
|
|
}, {
|
|
desc: "copy: short dst, checkpointed",
|
|
dstSize: 1,
|
|
atEOF: false,
|
|
src: "12",
|
|
out: "1",
|
|
nSrc: 1,
|
|
err: transform.ErrShortDst,
|
|
ops: "next;copy;checkpoint;next;copy;next",
|
|
prefixArg: "",
|
|
prefixWant: true,
|
|
}, {
|
|
desc: "writeString: simple",
|
|
dstSize: 3,
|
|
atEOF: true,
|
|
src: "1",
|
|
out: "1ab",
|
|
nSrc: 1,
|
|
ops: "next;copy;writeab;next",
|
|
prefixArg: "",
|
|
prefixWant: true,
|
|
}, {
|
|
desc: "writeString: short dst",
|
|
dstSize: 2,
|
|
atEOF: true,
|
|
src: "12",
|
|
out: "",
|
|
nSrc: 0,
|
|
err: transform.ErrShortDst,
|
|
ops: "next;copy;writeab;next",
|
|
prefixArg: "2",
|
|
prefixWant: true,
|
|
}, {
|
|
desc: "writeString: simple",
|
|
dstSize: 3,
|
|
atEOF: true,
|
|
src: "12",
|
|
out: "1ab",
|
|
nSrc: 2,
|
|
ops: "next;copy;next;writeab;next",
|
|
prefixArg: "",
|
|
prefixWant: true,
|
|
}, {
|
|
desc: "writeString: short dst",
|
|
dstSize: 2,
|
|
atEOF: true,
|
|
src: "12",
|
|
out: "",
|
|
nSrc: 0,
|
|
err: transform.ErrShortDst,
|
|
ops: "next;copy;next;writeab;next",
|
|
prefixArg: "1",
|
|
prefixWant: false,
|
|
}, {
|
|
desc: "prefix",
|
|
dstSize: 2,
|
|
atEOF: true,
|
|
src: "12",
|
|
out: "",
|
|
nSrc: 0,
|
|
// Context will assign an ErrShortSrc if the input wasn't exhausted.
|
|
err: transform.ErrShortSrc,
|
|
prefixArg: "12",
|
|
prefixWant: true,
|
|
}}
|
|
for _, tt := range tests {
|
|
c := context{dst: make([]byte, tt.dstSize), src: []byte(tt.src), atEOF: tt.atEOF}
|
|
|
|
for _, op := range strings.Split(tt.ops, ";") {
|
|
switch op {
|
|
case "next":
|
|
c.next()
|
|
case "checkpoint":
|
|
c.checkpoint()
|
|
case "writeab":
|
|
c.writeString("ab")
|
|
case "copy":
|
|
c.copy()
|
|
case "":
|
|
default:
|
|
t.Fatalf("unknown op %q", op)
|
|
}
|
|
}
|
|
if got := c.hasPrefix(tt.prefixArg); got != tt.prefixWant {
|
|
t.Errorf("%s:\nprefix was %v; want %v", tt.desc, got, tt.prefixWant)
|
|
}
|
|
nDst, nSrc, err := c.ret()
|
|
if err != tt.err {
|
|
t.Errorf("%s:\nerror was %v; want %v", tt.desc, err, tt.err)
|
|
}
|
|
if out := string(c.dst[:nDst]); out != tt.out {
|
|
t.Errorf("%s:\nout was %q; want %q", tt.desc, out, tt.out)
|
|
}
|
|
if nSrc != tt.nSrc {
|
|
t.Errorf("%s:\nnSrc was %d; want %d", tt.desc, nSrc, tt.nSrc)
|
|
}
|
|
}
|
|
}
|