property

test.Test.extend

Returns a test whose callbacks receive the TestContext with fixtures added to it.

A fixture is set up for the tests that destructure it, and for the returned test's beforeEach() / afterEach() hooks that destructure it. It's torn down after the test.

const test = base.extend<{ server: Server }>({
  server: async ({}, use) => {
    const server = Bun.serve({ port: 0, fetch: () => new Response("ok") });
    await use(server);
    await server.stop();
  },
});

test("responds", async ({ server }) => {
  expect(await (await fetch(server.url)).text()).toBe("ok");
});