text: import * as RA from '../src';
  import eq from './shared/eq';
  
  describe('stubUndefined', function() {
    it('tests `function` that returns `undefined`', function() {
      eq(RA.stubUndefined(), undefined);
      eq(RA.stubUndefined([1]), undefined);
      eq(RA.stubUndefined(new Array()), undefined);
      eq(RA.stubUndefined(1, 2, 3), undefined);
    });
  });
  