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// Copyright 2016 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 number
import (
"strconv"
"strings"
"testing"
"golang.org/x/text/language"
)
func TestOrdinal(t *testing.T) {
testPlurals(t, &ordinalData, ordinalTests)
}
func TestCardinal(t *testing.T) {
testPlurals(t, &cardinalData, cardinalTests)
}
func testPlurals(t *testing.T, p *pluralRules, testCases []pluralTest) {
for _, tc := range testCases {
for _, loc := range strings.Split(tc.locales, " ") {
langIndex, _ := language.CompactIndex(language.MustParse(loc))
// Test integers
for _, s := range tc.integer {
a := strings.Split(s, "~")
from := parseUint(t, a[0])
to := from
if len(a) > 1 {
to = parseUint(t, a[1])
}
for n := from; n <= to; n++ {
if f := matchPlural(p, langIndex, n, 0, 0); f != tc.form {
t.Errorf("%s:int(%d) = %v; want %v", loc, n, f, tc.form)
}
}
}
// Test decimals
for _, s := range tc.decimal {
a := strings.Split(s, "~")
from, scale := parseFixedPoint(t, a[0])
to := from
if len(a) > 1 {
var toScale int
if to, toScale = parseFixedPoint(t, a[1]); toScale != scale {
t.Fatalf("%s:%s: non-matching scales %d versus %d", loc, s, scale, toScale)
}
}
m := 1
for i := 0; i < scale; i++ {
m *= 10
}
for n := from; n <= to; n++ {
if f := matchPlural(p, langIndex, n/m, n%m, scale); f != tc.form {
t.Errorf("%[1]s:dec(%[2]d.%0[4]*[3]d) = %[5]v; want %[6]v", loc, n/m, n%m, scale, f, tc.form)
}
}
}
}
}
}
func parseUint(t *testing.T, s string) int {
val, err := strconv.ParseUint(s, 10, 32)
if err != nil {
t.Fatal(err)
}
return int(val)
}
func parseFixedPoint(t *testing.T, s string) (val, scale int) {
p := strings.Index(s, ".")
s = strings.Replace(s, ".", "", 1)
v, err := strconv.ParseUint(s, 10, 32)
if err != nil {
t.Fatal(err)
}
return int(v), len(s) - p
}
func BenchmarkPluralSimpleCases(b *testing.B) {
p := &cardinalData
en, _ := language.CompactIndex(language.English)
zh, _ := language.CompactIndex(language.Chinese)
for i := 0; i < b.N; i++ {
matchPlural(p, en, 0, 0, 0) // 0
matchPlural(p, en, 1, 0, 0) // 1
matchPlural(p, en, 2, 12, 3) // 2.120
matchPlural(p, zh, 0, 0, 0) // 0
matchPlural(p, zh, 1, 0, 0) // 1
matchPlural(p, zh, 2, 12, 3) // 2.120
}
}
func BenchmarkPluralComplexCases(b *testing.B) {
p := &cardinalData
ar, _ := language.CompactIndex(language.Arabic)
lv, _ := language.CompactIndex(language.Latvian)
for i := 0; i < b.N; i++ {
matchPlural(p, lv, 0, 19, 2) // 0.19
matchPlural(p, lv, 11, 0, 3) // 11.000
matchPlural(p, lv, 100, 123, 4) // 0.1230
matchPlural(p, ar, 0, 0, 0) // 0
matchPlural(p, ar, 110, 0, 0) // 110
matchPlural(p, ar, 99, 99, 2) // 99.99
}
}
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