af146490bb
It is not needed due to the removal of the ctx field.
Reviewed-on: https://go-review.googlesource.com/16525
From-SVN: r229616
550 lines
12 KiB
Go
550 lines
12 KiB
Go
// Copyright 2009 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 unicode_test
|
||
|
||
import (
|
||
"flag"
|
||
"fmt"
|
||
"runtime"
|
||
"sort"
|
||
"testing"
|
||
. "unicode"
|
||
)
|
||
|
||
var upperTest = []rune{
|
||
0x41,
|
||
0xc0,
|
||
0xd8,
|
||
0x100,
|
||
0x139,
|
||
0x14a,
|
||
0x178,
|
||
0x181,
|
||
0x376,
|
||
0x3cf,
|
||
0x13bd,
|
||
0x1f2a,
|
||
0x2102,
|
||
0x2c00,
|
||
0x2c10,
|
||
0x2c20,
|
||
0xa650,
|
||
0xa722,
|
||
0xff3a,
|
||
0x10400,
|
||
0x1d400,
|
||
0x1d7ca,
|
||
}
|
||
|
||
var notupperTest = []rune{
|
||
0x40,
|
||
0x5b,
|
||
0x61,
|
||
0x185,
|
||
0x1b0,
|
||
0x377,
|
||
0x387,
|
||
0x2150,
|
||
0xab7d,
|
||
0xffff,
|
||
0x10000,
|
||
}
|
||
|
||
var letterTest = []rune{
|
||
0x41,
|
||
0x61,
|
||
0xaa,
|
||
0xba,
|
||
0xc8,
|
||
0xdb,
|
||
0xf9,
|
||
0x2ec,
|
||
0x535,
|
||
0x620,
|
||
0x6e6,
|
||
0x93d,
|
||
0xa15,
|
||
0xb99,
|
||
0xdc0,
|
||
0xedd,
|
||
0x1000,
|
||
0x1200,
|
||
0x1312,
|
||
0x1401,
|
||
0x1885,
|
||
0x2c00,
|
||
0xa800,
|
||
0xf900,
|
||
0xfa30,
|
||
0xffda,
|
||
0xffdc,
|
||
0x10000,
|
||
0x10300,
|
||
0x10400,
|
||
0x20000,
|
||
0x2f800,
|
||
0x2fa1d,
|
||
}
|
||
|
||
var notletterTest = []rune{
|
||
0x20,
|
||
0x35,
|
||
0x375,
|
||
0x619,
|
||
0x700,
|
||
0xfffe,
|
||
0x1ffff,
|
||
0x10ffff,
|
||
}
|
||
|
||
// Contains all the special cased Latin-1 chars.
|
||
var spaceTest = []rune{
|
||
0x09,
|
||
0x0a,
|
||
0x0b,
|
||
0x0c,
|
||
0x0d,
|
||
0x20,
|
||
0x85,
|
||
0xA0,
|
||
0x2000,
|
||
0x3000,
|
||
}
|
||
|
||
type caseT struct {
|
||
cas int
|
||
in, out rune
|
||
}
|
||
|
||
var caseTest = []caseT{
|
||
// errors
|
||
{-1, '\n', 0xFFFD},
|
||
{UpperCase, -1, -1},
|
||
{UpperCase, 1 << 30, 1 << 30},
|
||
|
||
// ASCII (special-cased so test carefully)
|
||
{UpperCase, '\n', '\n'},
|
||
{UpperCase, 'a', 'A'},
|
||
{UpperCase, 'A', 'A'},
|
||
{UpperCase, '7', '7'},
|
||
{LowerCase, '\n', '\n'},
|
||
{LowerCase, 'a', 'a'},
|
||
{LowerCase, 'A', 'a'},
|
||
{LowerCase, '7', '7'},
|
||
{TitleCase, '\n', '\n'},
|
||
{TitleCase, 'a', 'A'},
|
||
{TitleCase, 'A', 'A'},
|
||
{TitleCase, '7', '7'},
|
||
|
||
// Latin-1: easy to read the tests!
|
||
{UpperCase, 0x80, 0x80},
|
||
{UpperCase, 'Å', 'Å'},
|
||
{UpperCase, 'å', 'Å'},
|
||
{LowerCase, 0x80, 0x80},
|
||
{LowerCase, 'Å', 'å'},
|
||
{LowerCase, 'å', 'å'},
|
||
{TitleCase, 0x80, 0x80},
|
||
{TitleCase, 'Å', 'Å'},
|
||
{TitleCase, 'å', 'Å'},
|
||
|
||
// 0131;LATIN SMALL LETTER DOTLESS I;Ll;0;L;;;;;N;;;0049;;0049
|
||
{UpperCase, 0x0131, 'I'},
|
||
{LowerCase, 0x0131, 0x0131},
|
||
{TitleCase, 0x0131, 'I'},
|
||
|
||
// 0133;LATIN SMALL LIGATURE IJ;Ll;0;L;<compat> 0069 006A;;;;N;LATIN SMALL LETTER I J;;0132;;0132
|
||
{UpperCase, 0x0133, 0x0132},
|
||
{LowerCase, 0x0133, 0x0133},
|
||
{TitleCase, 0x0133, 0x0132},
|
||
|
||
// 212A;KELVIN SIGN;Lu;0;L;004B;;;;N;DEGREES KELVIN;;;006B;
|
||
{UpperCase, 0x212A, 0x212A},
|
||
{LowerCase, 0x212A, 'k'},
|
||
{TitleCase, 0x212A, 0x212A},
|
||
|
||
// From an UpperLower sequence
|
||
// A640;CYRILLIC CAPITAL LETTER ZEMLYA;Lu;0;L;;;;;N;;;;A641;
|
||
{UpperCase, 0xA640, 0xA640},
|
||
{LowerCase, 0xA640, 0xA641},
|
||
{TitleCase, 0xA640, 0xA640},
|
||
// A641;CYRILLIC SMALL LETTER ZEMLYA;Ll;0;L;;;;;N;;;A640;;A640
|
||
{UpperCase, 0xA641, 0xA640},
|
||
{LowerCase, 0xA641, 0xA641},
|
||
{TitleCase, 0xA641, 0xA640},
|
||
// A64E;CYRILLIC CAPITAL LETTER NEUTRAL YER;Lu;0;L;;;;;N;;;;A64F;
|
||
{UpperCase, 0xA64E, 0xA64E},
|
||
{LowerCase, 0xA64E, 0xA64F},
|
||
{TitleCase, 0xA64E, 0xA64E},
|
||
// A65F;CYRILLIC SMALL LETTER YN;Ll;0;L;;;;;N;;;A65E;;A65E
|
||
{UpperCase, 0xA65F, 0xA65E},
|
||
{LowerCase, 0xA65F, 0xA65F},
|
||
{TitleCase, 0xA65F, 0xA65E},
|
||
|
||
// From another UpperLower sequence
|
||
// 0139;LATIN CAPITAL LETTER L WITH ACUTE;Lu;0;L;004C 0301;;;;N;LATIN CAPITAL LETTER L ACUTE;;;013A;
|
||
{UpperCase, 0x0139, 0x0139},
|
||
{LowerCase, 0x0139, 0x013A},
|
||
{TitleCase, 0x0139, 0x0139},
|
||
// 013F;LATIN CAPITAL LETTER L WITH MIDDLE DOT;Lu;0;L;<compat> 004C 00B7;;;;N;;;;0140;
|
||
{UpperCase, 0x013f, 0x013f},
|
||
{LowerCase, 0x013f, 0x0140},
|
||
{TitleCase, 0x013f, 0x013f},
|
||
// 0148;LATIN SMALL LETTER N WITH CARON;Ll;0;L;006E 030C;;;;N;LATIN SMALL LETTER N HACEK;;0147;;0147
|
||
{UpperCase, 0x0148, 0x0147},
|
||
{LowerCase, 0x0148, 0x0148},
|
||
{TitleCase, 0x0148, 0x0147},
|
||
|
||
// Lowercase lower than uppercase.
|
||
// AB78;CHEROKEE SMALL LETTER GE;Ll;0;L;;;;;N;;;13A8;;13A8
|
||
{UpperCase, 0xab78, 0x13a8},
|
||
{LowerCase, 0xab78, 0xab78},
|
||
{TitleCase, 0xab78, 0x13a8},
|
||
{UpperCase, 0x13a8, 0x13a8},
|
||
{LowerCase, 0x13a8, 0xab78},
|
||
{TitleCase, 0x13a8, 0x13a8},
|
||
|
||
// Last block in the 5.1.0 table
|
||
// 10400;DESERET CAPITAL LETTER LONG I;Lu;0;L;;;;;N;;;;10428;
|
||
{UpperCase, 0x10400, 0x10400},
|
||
{LowerCase, 0x10400, 0x10428},
|
||
{TitleCase, 0x10400, 0x10400},
|
||
// 10427;DESERET CAPITAL LETTER EW;Lu;0;L;;;;;N;;;;1044F;
|
||
{UpperCase, 0x10427, 0x10427},
|
||
{LowerCase, 0x10427, 0x1044F},
|
||
{TitleCase, 0x10427, 0x10427},
|
||
// 10428;DESERET SMALL LETTER LONG I;Ll;0;L;;;;;N;;;10400;;10400
|
||
{UpperCase, 0x10428, 0x10400},
|
||
{LowerCase, 0x10428, 0x10428},
|
||
{TitleCase, 0x10428, 0x10400},
|
||
// 1044F;DESERET SMALL LETTER EW;Ll;0;L;;;;;N;;;10427;;10427
|
||
{UpperCase, 0x1044F, 0x10427},
|
||
{LowerCase, 0x1044F, 0x1044F},
|
||
{TitleCase, 0x1044F, 0x10427},
|
||
|
||
// First one not in the 5.1.0 table
|
||
// 10450;SHAVIAN LETTER PEEP;Lo;0;L;;;;;N;;;;;
|
||
{UpperCase, 0x10450, 0x10450},
|
||
{LowerCase, 0x10450, 0x10450},
|
||
{TitleCase, 0x10450, 0x10450},
|
||
|
||
// Non-letters with case.
|
||
{LowerCase, 0x2161, 0x2171},
|
||
{UpperCase, 0x0345, 0x0399},
|
||
}
|
||
|
||
func TestIsLetter(t *testing.T) {
|
||
for _, r := range upperTest {
|
||
if !IsLetter(r) {
|
||
t.Errorf("IsLetter(U+%04X) = false, want true", r)
|
||
}
|
||
}
|
||
for _, r := range letterTest {
|
||
if !IsLetter(r) {
|
||
t.Errorf("IsLetter(U+%04X) = false, want true", r)
|
||
}
|
||
}
|
||
for _, r := range notletterTest {
|
||
if IsLetter(r) {
|
||
t.Errorf("IsLetter(U+%04X) = true, want false", r)
|
||
}
|
||
}
|
||
}
|
||
|
||
func TestIsUpper(t *testing.T) {
|
||
for _, r := range upperTest {
|
||
if !IsUpper(r) {
|
||
t.Errorf("IsUpper(U+%04X) = false, want true", r)
|
||
}
|
||
}
|
||
for _, r := range notupperTest {
|
||
if IsUpper(r) {
|
||
t.Errorf("IsUpper(U+%04X) = true, want false", r)
|
||
}
|
||
}
|
||
for _, r := range notletterTest {
|
||
if IsUpper(r) {
|
||
t.Errorf("IsUpper(U+%04X) = true, want false", r)
|
||
}
|
||
}
|
||
}
|
||
|
||
func caseString(c int) string {
|
||
switch c {
|
||
case UpperCase:
|
||
return "UpperCase"
|
||
case LowerCase:
|
||
return "LowerCase"
|
||
case TitleCase:
|
||
return "TitleCase"
|
||
}
|
||
return "ErrorCase"
|
||
}
|
||
|
||
func TestTo(t *testing.T) {
|
||
for _, c := range caseTest {
|
||
r := To(c.cas, c.in)
|
||
if c.out != r {
|
||
t.Errorf("To(U+%04X, %s) = U+%04X want U+%04X", c.in, caseString(c.cas), r, c.out)
|
||
}
|
||
}
|
||
}
|
||
|
||
func TestToUpperCase(t *testing.T) {
|
||
for _, c := range caseTest {
|
||
if c.cas != UpperCase {
|
||
continue
|
||
}
|
||
r := ToUpper(c.in)
|
||
if c.out != r {
|
||
t.Errorf("ToUpper(U+%04X) = U+%04X want U+%04X", c.in, r, c.out)
|
||
}
|
||
}
|
||
}
|
||
|
||
func TestToLowerCase(t *testing.T) {
|
||
for _, c := range caseTest {
|
||
if c.cas != LowerCase {
|
||
continue
|
||
}
|
||
r := ToLower(c.in)
|
||
if c.out != r {
|
||
t.Errorf("ToLower(U+%04X) = U+%04X want U+%04X", c.in, r, c.out)
|
||
}
|
||
}
|
||
}
|
||
|
||
func TestToTitleCase(t *testing.T) {
|
||
for _, c := range caseTest {
|
||
if c.cas != TitleCase {
|
||
continue
|
||
}
|
||
r := ToTitle(c.in)
|
||
if c.out != r {
|
||
t.Errorf("ToTitle(U+%04X) = U+%04X want U+%04X", c.in, r, c.out)
|
||
}
|
||
}
|
||
}
|
||
|
||
func TestIsSpace(t *testing.T) {
|
||
for _, c := range spaceTest {
|
||
if !IsSpace(c) {
|
||
t.Errorf("IsSpace(U+%04X) = false; want true", c)
|
||
}
|
||
}
|
||
for _, c := range letterTest {
|
||
if IsSpace(c) {
|
||
t.Errorf("IsSpace(U+%04X) = true; want false", c)
|
||
}
|
||
}
|
||
}
|
||
|
||
// Check that the optimizations for IsLetter etc. agree with the tables.
|
||
// We only need to check the Latin-1 range.
|
||
func TestLetterOptimizations(t *testing.T) {
|
||
for i := rune(0); i <= MaxLatin1; i++ {
|
||
if Is(Letter, i) != IsLetter(i) {
|
||
t.Errorf("IsLetter(U+%04X) disagrees with Is(Letter)", i)
|
||
}
|
||
if Is(Upper, i) != IsUpper(i) {
|
||
t.Errorf("IsUpper(U+%04X) disagrees with Is(Upper)", i)
|
||
}
|
||
if Is(Lower, i) != IsLower(i) {
|
||
t.Errorf("IsLower(U+%04X) disagrees with Is(Lower)", i)
|
||
}
|
||
if Is(Title, i) != IsTitle(i) {
|
||
t.Errorf("IsTitle(U+%04X) disagrees with Is(Title)", i)
|
||
}
|
||
if Is(White_Space, i) != IsSpace(i) {
|
||
t.Errorf("IsSpace(U+%04X) disagrees with Is(White_Space)", i)
|
||
}
|
||
if To(UpperCase, i) != ToUpper(i) {
|
||
t.Errorf("ToUpper(U+%04X) disagrees with To(Upper)", i)
|
||
}
|
||
if To(LowerCase, i) != ToLower(i) {
|
||
t.Errorf("ToLower(U+%04X) disagrees with To(Lower)", i)
|
||
}
|
||
if To(TitleCase, i) != ToTitle(i) {
|
||
t.Errorf("ToTitle(U+%04X) disagrees with To(Title)", i)
|
||
}
|
||
}
|
||
}
|
||
|
||
func TestTurkishCase(t *testing.T) {
|
||
lower := []rune("abcçdefgğhıijklmnoöprsştuüvyz")
|
||
upper := []rune("ABCÇDEFGĞHIİJKLMNOÖPRSŞTUÜVYZ")
|
||
for i, l := range lower {
|
||
u := upper[i]
|
||
if TurkishCase.ToLower(l) != l {
|
||
t.Errorf("lower(U+%04X) is U+%04X not U+%04X", l, TurkishCase.ToLower(l), l)
|
||
}
|
||
if TurkishCase.ToUpper(u) != u {
|
||
t.Errorf("upper(U+%04X) is U+%04X not U+%04X", u, TurkishCase.ToUpper(u), u)
|
||
}
|
||
if TurkishCase.ToUpper(l) != u {
|
||
t.Errorf("upper(U+%04X) is U+%04X not U+%04X", l, TurkishCase.ToUpper(l), u)
|
||
}
|
||
if TurkishCase.ToLower(u) != l {
|
||
t.Errorf("lower(U+%04X) is U+%04X not U+%04X", u, TurkishCase.ToLower(l), l)
|
||
}
|
||
if TurkishCase.ToTitle(u) != u {
|
||
t.Errorf("title(U+%04X) is U+%04X not U+%04X", u, TurkishCase.ToTitle(u), u)
|
||
}
|
||
if TurkishCase.ToTitle(l) != u {
|
||
t.Errorf("title(U+%04X) is U+%04X not U+%04X", l, TurkishCase.ToTitle(l), u)
|
||
}
|
||
}
|
||
}
|
||
|
||
var simpleFoldTests = []string{
|
||
// SimpleFold(x) returns the next equivalent rune > x or wraps
|
||
// around to smaller values.
|
||
|
||
// Easy cases.
|
||
"Aa",
|
||
"δΔ",
|
||
|
||
// ASCII special cases.
|
||
"KkK",
|
||
"Ssſ",
|
||
|
||
// Non-ASCII special cases.
|
||
"ρϱΡ",
|
||
"ͅΙιι",
|
||
|
||
// Extra special cases: has lower/upper but no case fold.
|
||
"İ",
|
||
"ı",
|
||
|
||
// Upper comes before lower (Cherokee).
|
||
"\u13b0\uab80",
|
||
}
|
||
|
||
func TestSimpleFold(t *testing.T) {
|
||
for _, tt := range simpleFoldTests {
|
||
cycle := []rune(tt)
|
||
r := cycle[len(cycle)-1]
|
||
for _, out := range cycle {
|
||
if r := SimpleFold(r); r != out {
|
||
t.Errorf("SimpleFold(%#U) = %#U, want %#U", r, r, out)
|
||
}
|
||
r = out
|
||
}
|
||
}
|
||
}
|
||
|
||
// Running 'go test -calibrate' runs the calibration to find a plausible
|
||
// cutoff point for linear search of a range list vs. binary search.
|
||
// We create a fake table and then time how long it takes to do a
|
||
// sequence of searches within that table, for all possible inputs
|
||
// relative to the ranges (something before all, in each, between each, after all).
|
||
// This assumes that all possible runes are equally likely.
|
||
// In practice most runes are ASCII so this is a conservative estimate
|
||
// of an effective cutoff value. In practice we could probably set it higher
|
||
// than what this function recommends.
|
||
|
||
var calibrate = flag.Bool("calibrate", false, "compute crossover for linear vs. binary search")
|
||
|
||
func TestCalibrate(t *testing.T) {
|
||
if !*calibrate {
|
||
return
|
||
}
|
||
|
||
if runtime.GOARCH == "amd64" {
|
||
fmt.Printf("warning: running calibration on %s\n", runtime.GOARCH)
|
||
}
|
||
|
||
// Find the point where binary search wins by more than 10%.
|
||
// The 10% bias gives linear search an edge when they're close,
|
||
// because on predominantly ASCII inputs linear search is even
|
||
// better than our benchmarks measure.
|
||
n := sort.Search(64, func(n int) bool {
|
||
tab := fakeTable(n)
|
||
blinear := func(b *testing.B) {
|
||
tab := tab
|
||
max := n*5 + 20
|
||
for i := 0; i < b.N; i++ {
|
||
for j := 0; j <= max; j++ {
|
||
linear(tab, uint16(j))
|
||
}
|
||
}
|
||
}
|
||
bbinary := func(b *testing.B) {
|
||
tab := tab
|
||
max := n*5 + 20
|
||
for i := 0; i < b.N; i++ {
|
||
for j := 0; j <= max; j++ {
|
||
binary(tab, uint16(j))
|
||
}
|
||
}
|
||
}
|
||
bmlinear := testing.Benchmark(blinear)
|
||
bmbinary := testing.Benchmark(bbinary)
|
||
fmt.Printf("n=%d: linear=%d binary=%d\n", n, bmlinear.NsPerOp(), bmbinary.NsPerOp())
|
||
return bmlinear.NsPerOp()*100 > bmbinary.NsPerOp()*110
|
||
})
|
||
fmt.Printf("calibration: linear cutoff = %d\n", n)
|
||
}
|
||
|
||
func fakeTable(n int) []Range16 {
|
||
var r16 []Range16
|
||
for i := 0; i < n; i++ {
|
||
r16 = append(r16, Range16{uint16(i*5 + 10), uint16(i*5 + 12), 1})
|
||
}
|
||
return r16
|
||
}
|
||
|
||
func linear(ranges []Range16, r uint16) bool {
|
||
for i := range ranges {
|
||
range_ := &ranges[i]
|
||
if r < range_.Lo {
|
||
return false
|
||
}
|
||
if r <= range_.Hi {
|
||
return (r-range_.Lo)%range_.Stride == 0
|
||
}
|
||
}
|
||
return false
|
||
}
|
||
|
||
func binary(ranges []Range16, r uint16) bool {
|
||
// binary search over ranges
|
||
lo := 0
|
||
hi := len(ranges)
|
||
for lo < hi {
|
||
m := lo + (hi-lo)/2
|
||
range_ := &ranges[m]
|
||
if range_.Lo <= r && r <= range_.Hi {
|
||
return (r-range_.Lo)%range_.Stride == 0
|
||
}
|
||
if r < range_.Lo {
|
||
hi = m
|
||
} else {
|
||
lo = m + 1
|
||
}
|
||
}
|
||
return false
|
||
}
|
||
|
||
func TestLatinOffset(t *testing.T) {
|
||
var maps = []map[string]*RangeTable{
|
||
Categories,
|
||
FoldCategory,
|
||
FoldScript,
|
||
Properties,
|
||
Scripts,
|
||
}
|
||
for _, m := range maps {
|
||
for name, tab := range m {
|
||
i := 0
|
||
for i < len(tab.R16) && tab.R16[i].Hi <= MaxLatin1 {
|
||
i++
|
||
}
|
||
if tab.LatinOffset != i {
|
||
t.Errorf("%s: LatinOffset=%d, want %d", name, tab.LatinOffset, i)
|
||
}
|
||
}
|
||
}
|
||
}
|