import keepLoginAlive from './keep-login-alive';

jest.useFakeTimers();

const pingInterval = 100;

describe('Keep Login Alive', () => {
  keepLoginAlive.pingInterval = pingInterval;

  it('should ping every x seconds after start', () => {
    keepLoginAlive.ping = jest.fn();
    keepLoginAlive.start();

    expect(keepLoginAlive.ping).not.toHaveBeenCalled();

    jest.advanceTimersByTime(pingInterval);

    expect(keepLoginAlive.ping).toHaveBeenCalled();

    jest.advanceTimersByTime(pingInterval);

    expect(keepLoginAlive.ping).toHaveBeenCalledTimes(2);
  });

  it('should stop pinging after stopping', () => {
    keepLoginAlive.ping = jest.fn();
    keepLoginAlive.start();

    jest.advanceTimersByTime(pingInterval);

    expect(keepLoginAlive.ping).toHaveBeenCalledTimes(1);

    keepLoginAlive.stop();
    jest.advanceTimersByTime(pingInterval);

    expect(keepLoginAlive.ping).toHaveBeenCalledTimes(1);
  });
});