package communication

import (
	"reflect"
	"testing"
)

func TestUnslip(t *testing.T) {
	input := []byte{
		0xFF, 0x12, SLIP_END,
		0xFF, SLIP_ESC, SLIP_ESC_END, 0x12, SLIP_END,
		0xFF, SLIP_ESC, SLIP_ESC_ESC, 0x12, SLIP_END,
	}

	output := [][]byte{
		{0xFF, 0x12},
		{0xFF, SLIP_END, 0x12},
		{0xFF, SLIP_ESC, 0x12},
	}

	bytes := make(chan byte)
	frames := make(chan []byte)

	go func() {
		for _, v := range input {
			bytes <- v
		}
	}()

	go func() {
		for {
			frames <- unslip(bytes)
		}
	}()

	for _, v := range output {
		frame := <-frames
		if !reflect.DeepEqual(frame, v) {
			t.Fatalf("Frame '%v' does not match expected '%v'\n", frame, v);
		}
	}
}