// Copyright 2012 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 collate
import (
"bytes"
"testing"
"golang.org/x/text/internal/colltab"
"golang.org/x/text/language"
)
type weightsTest struct {
opt opts
in, out ColElems
}
type opts struct {
lev int
alt alternateHandling
top int
backwards bool
caseLevel bool
}
// ignore returns an initialized boolean array based on the given Level.
// A negative value means using the default setting of quaternary.
func ignore(level colltab.Level) (ignore [colltab.NumLevels]bool) {
if level < 0 {
level = colltab.Quaternary
}
for i := range ignore {
ignore[i] = level < colltab.Level(i)
}
return ignore
}
func makeCE(w []int) colltab.Elem {
ce, err := colltab.MakeElem(w[0], w[1], w[2], uint8(w[3]))
if err != nil {
panic(err)
}
return ce
}
func (o opts) collator() *Collator {
c := &Collator{
options: options{
ignore: ignore(colltab.Level(o.lev - 1)),
alternate: o.alt,
backwards: o.backwards,
caseLevel: o.caseLevel,
variableTop: uint32(o.top),
},
}
return c
}
const (
maxQ = 0x1FFFFF
)
func wpq(p, q int) Weights {
return W(p, defaults.Secondary, defaults.Tertiary, q)
}
func wsq(s, q int) Weights {
return W(0, s, defaults.Tertiary, q)
}
func wq(q int) Weights {
return W(0, 0, 0, q)
}
var zero = W(0, 0, 0, 0)
var processTests = []weightsTest{
// Shifted
{ // simple sequence of non-variables
opt: opts{alt: altShifted, top: 100},
in: ColElems{W(200), W(300), W(400)},
out: ColElems{wpq(200, maxQ), wpq(300, maxQ), wpq(400, maxQ)},
},
{ // first is a variable
opt: opts{alt: altShifted, top: 250},
in: ColElems{W(200), W(300), W(400)},
out: ColElems{wq(200), wpq(300, maxQ), wpq(400, maxQ)},
},
{ // all but first are variable
opt: opts{alt: altShifted, top: 999},
in: ColElems{W(1000), W(200), W(300), W(400)},
out: ColElems{wpq(1000, maxQ), wq(200), wq(300), wq(400)},
},
{ // first is a modifier
opt: opts{alt: altShifted, top: 999},
in: ColElems{W(0, 10), W(1000)},
out: ColElems{wsq(10, maxQ), wpq(1000, maxQ)},
},
{ // primary ignorables
opt: opts{alt: altShifted, top: 250},
in: ColElems{W(200), W(0, 10), W(300), W(0, 15), W(400)},
out: ColElems{wq(200), zero, wpq(300, maxQ), wsq(15, maxQ), wpq(400, maxQ)},
},
{ // secondary ignorables
opt: opts{alt: altShifted, top: 250},
in: ColElems{W(200), W(0, 0, 10), W(300), W(0, 0, 15), W(400)},
out: ColElems{wq(200), zero, wpq(300, maxQ), W(0, 0, 15, maxQ), wpq(400, maxQ)},
},
{ // tertiary ignorables, no change
opt: opts{alt: altShifted, top: 250},
in: ColElems{W(200), zero, W(300), zero, W(400)},
out: ColElems{wq(200), zero, wpq(300, maxQ), zero, wpq(400, maxQ)},
},
// ShiftTrimmed (same as Shifted)
{ // simple sequence of non-variables
opt: opts{alt: altShiftTrimmed, top: 100},
in: ColElems{W(200), W(300), W(400)},
out: ColElems{wpq(200, maxQ), wpq(300, maxQ), wpq(400, maxQ)},
},
{ // first is a variable
opt: opts{alt: altShiftTrimmed, top: 250},
in: ColElems{W(200), W(300), W(400)},
out: ColElems{wq(200), wpq(300, maxQ), wpq(400, maxQ)},
},
{ // all but first are variable
opt: opts{alt: altShiftTrimmed, top: 999},
in: ColElems{W(1000), W(200), W(300), W(400)},
out: ColElems{wpq(1000, maxQ), wq(200), wq(300), wq(400)},
},
{ // first is a modifier
opt: opts{alt: altShiftTrimmed, top: 999},
in: ColElems{W(0, 10), W(1000)},
out: ColElems{wsq(10, maxQ), wpq(1000, maxQ)},
},
{ // primary ignorables
opt: opts{alt: altShiftTrimmed, top: 250},
in: ColElems{W(200), W(0, 10), W(300), W(0, 15), W(400)},
out: ColElems{wq(200), zero, wpq(300, maxQ), wsq(15, maxQ), wpq(400, maxQ)},
},
{ // secondary ignorables
opt: opts{alt: altShiftTrimmed, top: 250},
in: ColElems{W(200), W(0, 0, 10), W(300), W(0, 0, 15), W(400)},
out: ColElems{wq(200), zero, wpq(300, maxQ), W(0, 0, 15, maxQ), wpq(400, maxQ)},
},
{ // tertiary ignorables, no change
opt: opts{alt: altShiftTrimmed, top: 250},
in: ColElems{W(200), zero, W(300), zero, W(400)},
out: ColElems{wq(200), zero, wpq(300, maxQ), zero, wpq(400, maxQ)},
},
// Blanked
{ // simple sequence of non-variables
opt: opts{alt: altBlanked, top: 100},
in: ColElems{W(200), W(300), W(400)},
out: ColElems{W(200), W(300), W(400)},
},
{ // first is a variable
opt: opts{alt: altBlanked, top: 250},
in: ColElems{W(200), W(300), W(400)},
out: ColElems{zero, W(300), W(400)},
},
{ // all but first are variable
opt: opts{alt: altBlanked, top: 999},
in: ColElems{W(1000), W(200), W(300), W(400)},
out: ColElems{W(1000), zero, zero, zero},
},
{ // first is a modifier
opt: opts{alt: altBlanked, top: 999},
in: ColElems{W(0, 10), W(1000)},
out: ColElems{W(0, 10), W(1000)},
},
{ // primary ignorables
opt: opts{alt: altBlanked, top: 250},
in: ColElems{W(200), W(0, 10), W(300), W(0, 15), W(400)},
out: ColElems{zero, zero, W(300), W(0, 15), W(400)},
},
{ // secondary ignorables
opt: opts{alt: altBlanked, top: 250},
in: ColElems{W(200), W(0, 0, 10), W(300), W(0, 0, 15), W(400)},
out: ColElems{zero, zero, W(300), W(0, 0, 15), W(400)},
},
{ // tertiary ignorables, no change
opt: opts{alt: altBlanked, top: 250},
in: ColElems{W(200), zero, W(300), zero, W(400)},
out: ColElems{zero, zero, W(300), zero, W(400)},
},
// Non-ignorable: input is always equal to output.
{ // all but first are variable
opt: opts{alt: altNonIgnorable, top: 999},
in: ColElems{W(1000), W(200), W(300), W(400)},
out: ColElems{W(1000), W(200), W(300), W(400)},
},
{ // primary ignorables
opt: opts{alt: altNonIgnorable, top: 250},
in: ColElems{W(200), W(0, 10), W(300), W(0, 15), W(400)},
out: ColElems{W(200), W(0, 10), W(300), W(0, 15), W(400)},
},
{ // secondary ignorables
opt: opts{alt: altNonIgnorable, top: 250},
in: ColElems{W(200), W(0, 0, 10), W(300), W(0, 0, 15), W(400)},
out: ColElems{W(200), W(0, 0, 10), W(300), W(0, 0, 15), W(400)},
},
{ // tertiary ignorables, no change
opt: opts{alt: altNonIgnorable, top: 250},
in: ColElems{W(200), zero, W(300), zero, W(400)},
out: ColElems{W(200), zero, W(300), zero, W(400)},
},
}
func TestProcessWeights(t *testing.T) {
for i, tt := range processTests {
in := convertFromWeights(tt.in)
out := convertFromWeights(tt.out)
processWeights(tt.opt.alt, uint32(tt.opt.top), in)
for j, w := range in {
if w != out[j] {
t.Errorf("%d: Weights %d was %v; want %v", i, j, w, out[j])
}
}
}
}
type keyFromElemTest struct {
opt opts
in ColElems
out []byte
}
var defS = byte(defaults.Secondary)
var defT = byte(defaults.Tertiary)
const sep = 0 // separator byte
var keyFromElemTests = []keyFromElemTest{
{ // simple primary and secondary weights.
opts{alt: altShifted},
ColElems{W(0x200), W(0x7FFF), W(0, 0x30), W(0x100)},
[]byte{0x2, 0, 0x7F, 0xFF, 0x1, 0x00, // primary
sep, sep, 0, defS, 0, defS, 0, 0x30, 0, defS, // secondary
sep, sep, defT, defT, defT, defT, // tertiary
sep, 0xFF, 0xFF, 0xFF, 0xFF, // quaternary
},
},
{ // same as first, but with zero element that need to be removed
opts{alt: altShifted},
ColElems{W(0x200), zero, W(0x7FFF), W(0, 0x30), zero, W(0x100)},
[]byte{0x2, 0, 0x7F, 0xFF, 0x1, 0x00, // primary
sep, sep, 0, defS, 0, defS, 0, 0x30, 0, defS, // secondary
sep, sep, defT, defT, defT, defT, // tertiary
sep, 0xFF, 0xFF, 0xFF, 0xFF, // quaternary
},
},
{ // same as first, with large primary values
opts{alt: altShifted},
ColElems{W(0x200), W(0x8000), W(0, 0x30), W(0x12345)},
[]byte{0x2, 0, 0x80, 0x80, 0x00, 0x81, 0x23, 0x45, // primary
sep, sep, 0, defS, 0, defS, 0, 0x30, 0, defS, // secondary
sep, sep, defT, defT, defT, defT, // tertiary
sep, 0xFF, 0xFF, 0xFF, 0xFF, // quaternary
},
},
{ // same as first, but with the secondary level backwards
opts{alt: altShifted, backwards: true},
ColElems{W(0x200), W(0x7FFF), W(0, 0x30), W(0x100)},
[]byte{0x2, 0, 0x7F, 0xFF, 0x1, 0x00, // primary
sep, sep, 0, defS, 0, 0x30, 0, defS, 0, defS, // secondary
sep, sep, defT, defT, defT, defT, // tertiary
sep, 0xFF, 0xFF, 0xFF, 0xFF, // quaternary
},
},
{ // same as first, ignoring quaternary level
opts{alt: altShifted, lev: 3},
ColElems{W(0x200), zero, W(0x7FFF), W(0, 0x30), zero, W(0x100)},
[]byte{0x2, 0, 0x7F, 0xFF, 0x1, 0x00, // primary
sep, sep, 0, defS, 0, defS, 0, 0x30, 0, defS, // secondary
sep, sep, defT, defT, defT, defT, // tertiary
},
},
{ // same as first, ignoring tertiary level
opts{alt: altShifted, lev: 2},
ColElems{W(0x200), zero, W(0x7FFF), W(0, 0x30), zero, W(0x100)},
[]byte{0x2, 0, 0x7F, 0xFF, 0x1, 0x00, // primary
sep, sep, 0, defS, 0, defS, 0, 0x30, 0, defS, // secondary
},
},
{ // same as first, ignoring secondary level
opts{alt: altShifted, lev: 1},
ColElems{W(0x200), zero, W(0x7FFF), W(0, 0x30), zero, W(0x100)},
[]byte{0x2, 0, 0x7F, 0xFF, 0x1, 0x00},
},
{ // simple primary and secondary weights.
opts{alt: altShiftTrimmed, top: 0x250},
ColElems{W(0x300), W(0x200), W(0x7FFF), W(0, 0x30), W(0x800)},
[]byte{0x3, 0, 0x7F, 0xFF, 0x8, 0x00, // primary
sep, sep, 0, defS, 0, defS, 0, 0x30, 0, defS, // secondary
sep, sep, defT, defT, defT, defT, // tertiary
sep, 0xFF, 0x2, 0, // quaternary
},
},
{ // as first, primary with case level enabled
opts{alt: altShifted, lev: 1, caseLevel: true},
ColElems{W(0x200), W(0x7FFF), W(0, 0x30), W(0x100)},
[]byte{0x2, 0, 0x7F, 0xFF, 0x1, 0x00, // primary
sep, sep, // secondary
sep, sep, defT, defT, defT, defT, // tertiary
},
},
}
func TestKeyFromElems(t *testing.T) {
buf := Buffer{}
for i, tt := range keyFromElemTests {
buf.Reset()
in := convertFromWeights(tt.in)
processWeights(tt.opt.alt, uint32(tt.opt.top), in)
tt.opt.collator().keyFromElems(&buf, in)
res := buf.key
if len(res) != len(tt.out) {
t.Errorf("%d: len(ws) was %d; want %d (%X should be %X)", i, len(res), len(tt.out), res, tt.out)
}
n := len(res)
if len(tt.out) < n {
n = len(tt.out)
}
for j, c := range res[:n] {
if c != tt.out[j] {
t.Errorf("%d: byte %d was %X; want %X", i, j, c, tt.out[j])
}
}
}
}
func TestGetColElems(t *testing.T) {
for i, tt := range appendNextTests {
c, err := makeTable(tt.in)
if err != nil {
// error is reported in TestAppendNext
continue
}
// Create one large test per table
str := make([]byte, 0, 4000)
out := ColElems{}
for len(str) < 3000 {
for _, chk := range tt.chk {
str = append(str, chk.in[:chk.n]...)
out = append(out, chk.out...)
}
}
for j, chk := range append(tt.chk, check{string(str), len(str), out}) {
out := convertFromWeights(chk.out)
ce := c.getColElems([]byte(chk.in)[:chk.n])
if len(ce) != len(out) {
t.Errorf("%d:%d: len(ws) was %d; want %d", i, j, len(ce), len(out))
continue
}
cnt := 0
for k, w := range ce {
w, _ = colltab.MakeElem(w.Primary(), w.Secondary(), int(w.Tertiary()), 0)
if w != out[k] {
t.Errorf("%d:%d: Weights %d was %X; want %X", i, j, k, w, out[k])
cnt++
}
if cnt > 10 {
break
}
}
}
}
}
type keyTest struct {
in string
out []byte
}
var keyTests = []keyTest{
{"abc",
[]byte{0, 100, 0, 200, 1, 44, 0, 0, 0, 32, 0, 32, 0, 32, 0, 0, 2, 2, 2, 0, 255, 255, 255},
},
{"a\u0301",
[]byte{0, 102, 0, 0, 0, 32, 0, 0, 2, 0, 255},
},
{"aaaaa",
[]byte{0, 100, 0, 100, 0, 100, 0, 100, 0, 100, 0, 0,
0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 0,
2, 2, 2, 2, 2, 0,
255, 255, 255, 255, 255,
},
},
// Issue 16391: incomplete rune at end of UTF-8 sequence.
{"\xc2", []byte{133, 255, 253, 0, 0, 0, 32, 0, 0, 2, 0, 255}},
{"\xc2a", []byte{133, 255, 253, 0, 100, 0, 0, 0, 32, 0, 32, 0, 0, 2, 2, 0, 255, 255}},
}
func TestKey(t *testing.T) {
c, _ := makeTable(appendNextTests[4].in)
c.alternate = altShifted
c.ignore = ignore(colltab.Quaternary)
buf := Buffer{}
keys1 := [][]byte{}
keys2 := [][]byte{}
for _, tt := range keyTests {
keys1 = append(keys1, c.Key(&buf, []byte(tt.in)))
keys2 = append(keys2, c.KeyFromString(&buf, tt.in))
}
// Separate generation from testing to ensure buffers are not overwritten.
for i, tt := range keyTests {
if !bytes.Equal(keys1[i], tt.out) {
t.Errorf("%d: Key(%q) = %d; want %d", i, tt.in, keys1[i], tt.out)
}
if !bytes.Equal(keys2[i], tt.out) {
t.Errorf("%d: KeyFromString(%q) = %d; want %d", i, tt.in, keys2[i], tt.out)
}
}
}
type compareTest struct {
a, b string
res int // comparison result
}
var compareTests = []compareTest{
{"a\u0301", "a", 1},
{"a\u0301b", "ab", 1},
{"a", "a\u0301", -1},
{"ab", "a\u0301b", -1},
{"bc", "a\u0301c", 1},
{"ab", "aB", -1},
{"a\u0301", "a\u0301", 0},
{"a", "a", 0},
// Only clip prefixes of whole runes.
{"\u302E", "\u302F", 1},
// Don't clip prefixes when last rune of prefix may be part of contraction.
{"a\u035E", "a\u0301\u035F", -1},
{"a\u0301\u035Fb", "a\u0301\u035F", -1},
}
func TestCompare(t *testing.T) {
c, _ := makeTable(appendNextTests[4].in)
for i, tt := range compareTests {
if res := c.Compare([]byte(tt.a), []byte(tt.b)); res != tt.res {
t.Errorf("%d: Compare(%q, %q) == %d; want %d", i, tt.a, tt.b, res, tt.res)
}
if res := c.CompareString(tt.a, tt.b); res != tt.res {
t.Errorf("%d: CompareString(%q, %q) == %d; want %d", i, tt.a, tt.b, res, tt.res)
}
}
}
func TestNumeric(t *testing.T) {
c := New(language.English, Loose, Numeric)
for i, tt := range []struct {
a, b string
want int
}{
{"1", "2", -1},
{"2", "12", -1},
{"２", "１２", -1}, // Fullwidth is sorted as usual.
{"₂", "₁₂", 1}, // Subscript is not sorted as numbers.
{"②", "①②", 1}, // Circled is not sorted as numbers.
{ // Imperial Aramaic, is not sorted as number.
"\U00010859",
"\U00010858\U00010859",
1,
},
{"12", "2", 1},
{"A-1", "A-2", -1},
{"A-2", "A-12", -1},
{"A-12", "A-2", 1},
{"A-0001", "A-1", 0},
} {
if got := c.CompareString(tt.a, tt.b); got != tt.want {
t.Errorf("%d: CompareString(%s, %s) = %d; want %d", i, tt.a, tt.b, got, tt.want)
}
}
}
