package dithering

import (
	"image/color"
	"image/png"
	"math/rand"
	"os/exec"
	"testing"
	"time"

	"git.nkpl.cc/twocookedfaggots/imageutils"
)

func TestGrid(t *testing.T) {
	rand.Seed(time.Now().UnixNano())

	command := exec.Command("imv", "-")
	w, err := command.StdinPipe()
	if err != nil {
		t.Error(err)
	}
	img := imageutils.Scale(1<<6, grid{color.Gray{uint8(rand.Int() % 64)}})

	go func() {
		err = png.Encode(w, img)
		if err != nil {
			t.Error(err)
		}
	}()
	
	err = command.Start()
	if err != nil {
		t.Error(err)
	}
}