import { encode, decode } from "./base36.mjs";

const N = 100_000;

console.time(`${N} test cases`);

for (let i = 0; i < N; i++) {
  const bytes = new Uint8Array(16);
  let num = 0n;
  for (let j = 0; j < bytes.length; j++) {
    bytes[j] = Math.random() * 256;
    num = num * 256n + BigInt(bytes[j]);
  }

  const encoded = encode(bytes);
  if (encoded !== num.toString(36).padStart(25, "0")) {
    throw new Error("encode: disagreement with BigInt.prototype.toString(36)");
  }

  const decoded = decode(encoded);
  if (decoded.length !== 17) {
    throw new Error("decode: wrong output size");
  }
  if (decoded[0] !== 0) {
    throw new Error("decode: disagreement with original byte array");
  }
  for (let j = 0; j < bytes.length; j++) {
    if (bytes[j] !== decoded[j + 1]) {
      throw new Error("decode: disagreement with original byte array");
    }
  }
}

console.timeEnd(`${N} test cases`);