import { describe, expect, test } from "bun:test";

describe("Structured Clone Fast Path", () => {
  test("structuredClone should use a constant amount of memory for string inputs", () => {
    // Create a 100KB string to test fast path
    const largeString = Buffer.alloc(512 * 1024).toString();
    for (let i = 0; i < 100; i++) {
      structuredClone(largeString);
    }
    const rss = process.memoryUsage.rss();
    for (let i = 0; i < 10000; i++) {
      structuredClone(largeString);
    }
    const rss2 = process.memoryUsage.rss();
    const delta = rss2 - rss;
    expect(delta).toBeLessThan(1024 * 1024);
  });
});