whatcanGOwrong

go/pkg/mod/github.com/mattn/go-runewidth@v0.0.13/benchmark_test.go

@@ -0,0 +1,117 @@
+package runewidth
+
+import (
+	"testing"
+	"unicode/utf8"
+)
+
+var benchSink int
+
+//
+// RuneWidth
+//
+
+func benchRuneWidth(b *testing.B, eastAsianWidth bool, start, stop rune, want int) int {
+	n := 0
+	got := -1
+	c := NewCondition()
+	c.EastAsianWidth = eastAsianWidth
+	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, 1293932)
+}
+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, 1432558)
+}
+func BenchmarkRuneWidth768EastAsian(b *testing.B) {
+	benchSink = benchRuneWidth(b, true, 0, 0x300, 794)
+}
+
+//
+// String1Width - strings which consist of a single rune
+//
+
+func benchString1Width(b *testing.B, eastAsianWidth bool, start, stop rune, want int) int {
+	n := 0
+	got := -1
+	c := NewCondition()
+	c.EastAsianWidth = eastAsianWidth
+	for i := 0; i < b.N; i++ {
+		got = n
+		for r := start; r < stop; r++ {
+			s := string(r)
+			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, 1295980)
+}
+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, 1436654)
+}
+func BenchmarkString1Width768EastAsian(b *testing.B) {
+	benchSink = benchString1Width(b, true, 0, 0x300, 794)
+}
+
+//
+// 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)
+}