``` describe("backend json rest api", () => { const testId = randomUUID(); let worker; before

describe("backend json rest api", () => {
  const testId = randomUUID();
  let worker;

  before(async () => {
    // running migrations on db
    execSync(
      `export NO_D1_WARNING=true && wrangler d1 migrations apply db --local --persist-to=temp/${testId}`
    );

    // setting up worker
    worker = await unstable_dev("src/index.ts", {
      experimental: {
        disableExperimentalWarning: true,
      },
      persistTo: `temp/${testId}`,
    });
  });

  after(async () => {
    await worker.stop();
    execSync("rm -rf temp");
  });

  // ... tests here
});

describe("backend json rest api", () => {
  const testId = randomUUID();
  let worker;

  before(async () => {
    // running migrations on db
    execSync(
      `export NO_D1_WARNING=true && wrangler d1 migrations apply db --local --persist-to=temp/${testId}`
    );

    // setting up worker
    worker = await unstable_dev("src/index.ts", {
      experimental: {
        disableExperimentalWarning: true,
      },
      persistTo: `temp/${testId}`,
    });
  });

  after(async () => {
    await worker.stop();
    execSync("rm -rf temp");
  });

  // ... tests here
});