import {cold, getTestScheduler} from 'jasmine-marbles';
import 'rxjs/add/operator/concat';

describe('Test', () => {
  it('concat', () => {
    const one$ = cold('x-x|');
    const two$ = cold('-y|');

    expect(one$.concat(two$)).toBeObservable(cold('x-x-y|'));
  });
});