import { assertEquals } from "@std/assert";
import { auHeader, AU_ENCODING, AU_MAGIC } from "@binstruct/au";

const coder = auHeader();
const header = {
  magic: AU_MAGIC,
  dataOffset: 24,
  dataSize: 1024,
  encoding: AU_ENCODING.LINEAR_16,
  sampleRate: 44100,
  channels: 2,
  annotation: new Uint8Array(0),
};

const buffer = new Uint8Array(24);
const written = coder.encode(header, buffer);
const [decoded, read] = coder.decode(buffer);

assertEquals(written, 24);
assertEquals(read, 24);
assertEquals(decoded.sampleRate, 44100);
assertEquals(decoded.channels, 2);
assertEquals(decoded.encoding, AU_ENCODING.LINEAR_16);