import { assertEquals } from "@std/assert";
import { icoDir, ICO_IMAGE_TYPE } from "@binstruct/ico";

const coder = icoDir();
const dir = {
  reserved: 0,
  imageType: ICO_IMAGE_TYPE.ICON,
  imageCount: 1,
  entries: [
    {
      width: 32,
      height: 32,
      colorCount: 0,
      reserved: 0,
      planes: 1,
      bitCount: 32,
      dataSize: 744,
      dataOffset: 22,
    },
  ],
};

const buffer = new Uint8Array(64);
const written = coder.encode(dir, buffer);
const [decoded, read] = coder.decode(buffer.subarray(0, written));

assertEquals(written, read);
assertEquals(decoded, dir);