package vm

import "encoding/hex"
import "strings"
import "testing"

func TestFirst(t *testing.T) {
	asm := [][]string{
		[]string{
			"0000020000000000010000000000000000000000000000000000000000000001",
			"0000000100000000000000000000000000000001000000000000000000000000",
			"0000030100000000010000000000000000000000000000000000000000000003",
			"000004010000000000000000fffffffffffffffd000000000000000000000000",
		},
		[]string{
			"0000020000000000020000000000000000000000000000000000000000000001",
		},
	}

	functionByteCode := [][]byte{}

	for _, fnc := range asm {
		fncString := strings.Join(fnc, "")

		byteCode, err := hex.DecodeString(fncString)
		if err != nil {
			t.Fatal(err)
		}

		functionByteCode = append(functionByteCode, byteCode)
	}

	state, err := NewState(functionByteCode)
	if err != nil {
		t.Fatal(err)
	}

	state.Execute()

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

	if state.globalMemory[0] != 3 {
		t.Fatal(state.globalMemory[0])
	}
}