Function mulberry32

showcase/harness/src/fleet/queue-client.test.ts:1673–1682

(seed: number)

  // Seeded deterministic PRNG so the shuffled run is reproducible (mulberry32).
  function mulberry32(seed: number): () => number {
    let a = seed >>> 0;
    return () => {
      a |= 0;
      a = (a + 0x6d2b79f5) | 0;
      let t = Math.imul(a ^ (a >>> 15), 1 | a);
      t = (t + Math.imul(t ^ (t >>> 7), 61 | t)) ^ t;
      return ((t ^ (t >>> 14)) >>> 0) / 4294967296;
    };
  }

  const PAGE_IDS = Array.from({ length: 12 }, (_, i) => `j${i}`);