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271 lines (251 loc) · 5.84 KB
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package runewidth
import (
"strings"
"testing"
"unicode/utf8"
)
var (
benchSink int
benchStringSink string
)
//
// RuneWidth
//
func benchRuneWidth(b *testing.B, eastAsianWidth bool, start, stop rune, want int) int {
b.Helper()
n := 0
b.Run("regular", func(b *testing.B) {
got := -1
c := NewCondition()
c.EastAsianWidth = eastAsianWidth
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
got = n
for r := start; r < stop; r++ {
n += c.RuneWidth(r)
}
got = n - got
}
if want != 0 && got != want { // some extra checks
b.Errorf("got %d, want %d\n", got, want)
}
})
b.Run("lut", func(b *testing.B) {
got := -1
n = 0
c := NewCondition()
c.EastAsianWidth = eastAsianWidth
c.CreateLUT()
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
got = n
for r := start; r < stop; r++ {
n += c.RuneWidth(r)
}
got = n - got
}
if want != 0 && got != want { // some extra checks
b.Errorf("got %d, want %d\n", got, want)
}
})
return n
}
func BenchmarkRuneWidthAll(b *testing.B) {
benchSink = benchRuneWidth(b, false, 0, utf8.MaxRune+1, 1292721)
}
func BenchmarkRuneWidth768(b *testing.B) {
benchSink = benchRuneWidth(b, false, 0, 0x300, 702)
}
func BenchmarkRuneWidthAllEastAsian(b *testing.B) {
benchSink = benchRuneWidth(b, true, 0, utf8.MaxRune+1, 1431042)
}
func BenchmarkRuneWidth768EastAsian(b *testing.B) {
benchSink = benchRuneWidth(b, true, 0, 0x300, 745)
}
//
// String1Width - strings which consist of a single rune
//
func benchString1Width(b *testing.B, eastAsianWidth bool, start, stop rune, want int) int {
b.Helper()
n := 0
ss := make([]string, stop-start)
for r := start; r < stop; r++ {
ss = append(ss, string(r))
}
b.Run("regular", func(b *testing.B) {
got := -1
c := NewCondition()
c.EastAsianWidth = eastAsianWidth
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
got = n
for _, s := range ss {
n += c.StringWidth(s)
}
got = n - got
}
if want != 0 && got != want { // some extra checks
b.Errorf("got %d, want %d\n", got, want)
}
})
b.Run("lut", func(b *testing.B) {
got := -1
n = 0
c := NewCondition()
c.EastAsianWidth = eastAsianWidth
c.CreateLUT()
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
got = n
for _, s := range ss {
n += c.StringWidth(s)
}
got = n - got
}
if want != 0 && got != want { // some extra checks
b.Errorf("got %d, want %d\n", got, want)
}
})
return n
}
func BenchmarkString1WidthAll(b *testing.B) {
benchSink = benchString1Width(b, false, 0, utf8.MaxRune+1, 1294769)
}
func BenchmarkString1Width768(b *testing.B) {
benchSink = benchString1Width(b, false, 0, 0x300, 702)
}
func BenchmarkString1WidthAllEastAsian(b *testing.B) {
benchSink = benchString1Width(b, true, 0, utf8.MaxRune+1, 1435138)
}
func BenchmarkString1Width768EastAsian(b *testing.B) {
benchSink = benchString1Width(b, true, 0, 0x300, 745)
}
// tables
func benchTable(b *testing.B, tbl table) int {
n := 0
for i := 0; i < b.N; i++ {
for r := rune(0); r <= utf8.MaxRune; r++ {
if inTable(r, tbl) {
n++
}
}
}
return n
}
func BenchmarkTablePrivate(b *testing.B) {
benchSink = benchTable(b, private)
}
func BenchmarkTableNonprint(b *testing.B) {
benchSink = benchTable(b, nonprint)
}
func BenchmarkTableCombining(b *testing.B) {
benchSink = benchTable(b, combining)
}
func BenchmarkTableDoublewidth(b *testing.B) {
benchSink = benchTable(b, doublewidth)
}
func BenchmarkTableAmbiguous(b *testing.B) {
benchSink = benchTable(b, ambiguous)
}
func BenchmarkTableEmoji(b *testing.B) {
benchSink = benchTable(b, emoji)
}
func BenchmarkTableNarrow(b *testing.B) {
benchSink = benchTable(b, narrow)
}
func BenchmarkTableNeutral(b *testing.B) {
benchSink = benchTable(b, neutral)
}
func BenchmarkFillLeftShort(b *testing.B) {
for i := 0; i < b.N; i++ {
FillLeft("test", 16)
}
}
func BenchmarkFillLeftLong(b *testing.B) {
for i := 0; i < b.N; i++ {
FillLeft("test", 64)
}
}
func BenchmarkFillRightShort(b *testing.B) {
for i := 0; i < b.N; i++ {
FillRight("test", 16)
}
}
func BenchmarkFillRightLong(b *testing.B) {
for i := 0; i < b.N; i++ {
FillRight("test", 64)
}
}
//
// Wrap
//
// The three inputs pick out the paths StringWidth and Wrap can take: the
// ASCII byte loop, the rune loop for text without joining runes, and the
// grapheme segmenter for text with them.
var benchWrapInputs = []struct {
name string
s string
}{
{"ascii", strings.Repeat("The quick brown fox jumps over the lazy dog. ", 40)},
{"cjk", strings.Repeat("吾輩は猫である。名前はまだ無い。", 40)},
{"emoji", strings.Repeat("hello 👨👩👧👦 world 👩🏽 ", 40)},
}
func BenchmarkStringWidthText(b *testing.B) {
for _, in := range benchWrapInputs {
b.Run(in.name, func(b *testing.B) {
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
benchSink = StringWidth(in.s)
}
})
}
}
func BenchmarkWrap(b *testing.B) {
for _, in := range benchWrapInputs {
b.Run(in.name, func(b *testing.B) {
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
benchStringSink = Wrap(in.s, 40)
}
})
}
}
func BenchmarkTruncate(b *testing.B) {
for _, in := range benchWrapInputs {
b.Run(in.name, func(b *testing.B) {
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
benchStringSink = Truncate(in.s, 40, "...")
}
})
}
}
func BenchmarkTruncateLeft(b *testing.B) {
for _, in := range benchWrapInputs {
b.Run(in.name, func(b *testing.B) {
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
benchStringSink = TruncateLeft(in.s, 40, "...")
}
})
}
}
func BenchmarkTruncatePrefix(b *testing.B) {
for _, in := range benchWrapInputs {
b.Run(in.name, func(b *testing.B) {
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
benchStringSink = TruncatePrefix(in.s, 40, "...")
}
})
}
}