frontend/__tests__/utils/extract-next-page-from-link.test.ts

import { expect, test } from "vitest";
import { extractNextPageFromLink } from "#/utils/extract-next-page-from-link";

test("extractNextPageFromLink", () => {
  const link = `<https://api.github.com/repositories/1300192/issues?page=2>; rel="prev", <https://api.github.com/repositories/1300192/issues?page=4>; rel="next", <https://api.github.com/repositories/1300192/issues?page=515>; rel="last", <https://api.github.com/repositories/1300192/issues?page=1>; rel="first"`;
  expect(extractNextPageFromLink(link)).toBe(4);

  const noNextLink = `<https://api.github.com/repositories/1300192/issues?page=2>; rel="prev", <https://api.github.com/repositories/1300192/issues?page=1>; rel="first"`;
  expect(extractNextPageFromLink(noNextLink)).toBeNull();

  const extra = `<https://api.github.com/user/repos?sort=pushed&page=2&per_page=3>; rel="next", <https://api.github.com/user/repos?sort=pushed&page=22&per_page=3>; rel="last"`;
  expect(extractNextPageFromLink(extra)).toBe(2);
});