88 lines
1.8 KiB
Go
88 lines
1.8 KiB
Go
package text_test
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import (
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"fmt"
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"math/rand"
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"testing"
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"unicode"
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"golang.org/x/image/font/basicfont"
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"golang.org/x/image/font/gofont/goregular"
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"github.com/faiface/pixel"
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"github.com/faiface/pixel/text"
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"github.com/golang/freetype/truetype"
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)
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func TestClear(t *testing.T) {
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txt := text.New(pixel.ZV, text.Atlas7x13)
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if got, want := txt.Dot, pixel.ZV; !eqVectors(got, want) {
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t.Fatalf("txt.Dot = %v, want %v", got, want)
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}
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fmt.Fprint(txt, "Test\nClear")
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if got, want := txt.Dot, pixel.V(35, -13); !eqVectors(got, want) {
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t.Fatalf("txt.Dot = %v, want %v", got, want)
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}
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txt.Clear()
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if got, want := txt.Dot, pixel.ZV; !eqVectors(got, want) {
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t.Fatalf("txt.Dot = %v, want %v", got, want)
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}
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}
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func BenchmarkNewAtlas(b *testing.B) {
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runeSets := []struct {
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name string
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set []rune
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}{
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{"ASCII", text.ASCII},
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{"Latin", text.RangeTable(unicode.Latin)},
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}
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ttf, _ := truetype.Parse(goregular.TTF)
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face := truetype.NewFace(ttf, &truetype.Options{
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Size: 16,
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GlyphCacheEntries: 1,
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})
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for _, runeSet := range runeSets {
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b.Run(runeSet.name, func(b *testing.B) {
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for i := 0; i < b.N; i++ {
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_ = text.NewAtlas(face, runeSet.set)
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}
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})
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}
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}
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func BenchmarkTextWrite(b *testing.B) {
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runeSet := text.ASCII
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atlas := text.NewAtlas(basicfont.Face7x13, runeSet)
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lengths := []int{1, 10, 100, 1000}
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chunks := make([][]byte, len(lengths))
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for i := range chunks {
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chunk := make([]rune, lengths[i])
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for j := range chunk {
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chunk[j] = runeSet[rand.Intn(len(runeSet))]
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}
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chunks[i] = []byte(string(chunk))
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}
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for _, chunk := range chunks {
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b.Run(fmt.Sprintf("%d", len(chunk)), func(b *testing.B) {
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txt := text.New(pixel.ZV, atlas)
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for i := 0; i < b.N; i++ {
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_, _ = txt.Write(chunk)
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}
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})
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}
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}
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func eqVectors(a, b pixel.Vec) bool {
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return (a.X == b.X && a.Y == b.Y)
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}
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