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import { fetchUsers } from "./users";

test("fetchUsers returns names", async () => {
  const names = await fetchUsers(["u1", "u2"]);
  expect(names).toEqual(["ADA", "LINUS"]);
});

test("batches requests", async () => {
  await fetchUsers(ids);
  expect(api.get).toHaveBeenCalledTimes(1);
});

export const api = {
  async get<T>(path: string): Promise<T> {
    const res = await fetch(BASE + path);
    if (!res.ok) throw new Error(res.statusText);
    return res.json();
  },
};

export const getUser = (id: string) =>
  api.get<User>(`/users/${id}`);