renovate/lib/util/fs/index.spec.ts

import { getName } from '../../../test/util';
import { readLocalFile } from './index';

describe(getName(__filename), () => {
  describe('readLocalFile', () => {
    it('reads buffer', async () => {
      expect(await readLocalFile(__filename)).toBeInstanceOf(Buffer);
    });
    it('reads string', async () => {
      expect(typeof (await readLocalFile(__filename, 'utf8'))).toBe('string');
    });

    it('does not throw', async () => {
      // Does not work on FreeBSD: https://nodejs.org/docs/latest-v10.x/api/fs.html#fs_fs_readfile_path_options_callback
      expect(await readLocalFile(__dirname)).toBeNull();
    });
  });
});