face_test.go

package skin_test

import (
	"fmt"
	"image/png"
	"os"
	"strconv"
	"testing"

	"github.com/mineatar-io/skin-render"
)

var (
	writeRenders                = os.Getenv("WRITE_RENDERS") == "true"
	defaultBenchmarkRenderScale = 4
)

func init() {
	if v := os.Getenv("RENDER_SCALE"); len(v) > 0 {
		value, err := strconv.ParseUint(v, 10, 32)

		if err != nil {
			panic(err)
		}

		defaultBenchmarkRenderScale = int(value)
	}
}

func TestFaceSteve(t *testing.T) {
	rawSkin := skin.GetDefaultSkin(false)

	for i := 0; i <= 8; i++ {
		scale := 1 << i

		output := skin.RenderFace(rawSkin, skin.Options{
			Scale:   scale,
			Overlay: true,
			Slim:    false,
			Square:  false,
		})

		if output.Bounds().Dx() < 1 {
			t.Fatalf("result image width is %d pixels\n", output.Bounds().Dx())
		}

		if output.Bounds().Dy() < 1 {
			t.Fatalf("result image height is %d pixels\n", output.Bounds().Dy())
		}

		if writeRenders {
			f, err := os.OpenFile(fmt.Sprintf("face_steve_test_%d.png", scale), os.O_CREATE|os.O_RDWR, 0777)

			if err != nil {
				t.Fatal(err)
			}

			if err = png.Encode(f, output); err != nil {
				t.Fatal(err)
			}

			if err = f.Close(); err != nil {
				t.Fatal(err)
			}
		}
	}
}

func BenchmarkFaceSteve(b *testing.B) {
	rawSkin := skin.GetDefaultSkin(false)

	for n := 0; n <= b.N; n++ {
		skin.RenderFace(rawSkin, skin.Options{
			Scale:   defaultBenchmarkRenderScale,
			Overlay: true,
			Slim:    false,
			Square:  false,
		})
	}
}

func TestFaceAlex(t *testing.T) {
	rawSkin := skin.GetDefaultSkin(true)

	for i := 0; i <= 8; i++ {
		scale := 1 << i

		output := skin.RenderFace(rawSkin, skin.Options{
			Scale:   scale,
			Overlay: true,
			Slim:    true,
			Square:  false,
		})

		if output.Bounds().Dx() < 1 {
			t.Fatalf("result image width is %d pixels\n", output.Bounds().Dx())
		}

		if output.Bounds().Dy() < 1 {
			t.Fatalf("result image height is %d pixels\n", output.Bounds().Dy())
		}

		if writeRenders {
			f, err := os.OpenFile(fmt.Sprintf("face_alex_test_%d.png", scale), os.O_CREATE|os.O_RDWR, 0777)

			if err != nil {
				t.Fatal(err)
			}

			if err = png.Encode(f, output); err != nil {
				t.Fatal(err)
			}

			if err = f.Close(); err != nil {
				t.Fatal(err)
			}
		}
	}
}

func BenchmarkFaceAlex(b *testing.B) {
	rawSkin := skin.GetDefaultSkin(true)

	for n := 0; n <= b.N; n++ {
		skin.RenderFace(rawSkin, skin.Options{
			Scale:   defaultBenchmarkRenderScale,
			Overlay: true,
			Slim:    true,
			Square:  false,
		})
	}
}