Randomness test

  async function testDice(func, bytes = 2, runs = 1000) {
    let sequence = '';
    const vals = [];
    let last = 0;
    for (let i=0; i<runs; i++) {
      last = await func(i, last);
      let hex = last.toString(16);
      while (hex.length < (bytes * 2)) hex = `0${hex}`;
      for (let b=0; b<(bytes*2); b++) {
        const h = hex.substr(b, 1);
        const iv = parseInt(h, 16);
        let bin = (iv >>> 0).toString(2);
        while (bin.length < 4) bin = `0${bin}`;
        sequence += bin;
      }
      vals.push(last);

      const numMine = Math.floor(Math.random() * 10 + 2);
      for (let i=0; i<numMine; i++) {
        await ethers.provider.send("evm_mine");
      }
    }
    const r = new RandomTests(sequence);
    const res = {
      bits: sequence.length,
      monobit: randomness.monobitTest(sequence),
      frequency: analyzeTest(r.frequencyTest()),
      longestRunOfOnes: analyzeTest(r.longestRunOfOnesTest()),
    };
    console.log(res);
    return res;
  }