@Test
  public void noEventsAvailable() {
    EventOrganizer eventOrganizer = new EventOrganizer();

    assertNotNull(eventOrganizer.findAvailableEvents());
    assertTrue(eventOrganizer.findAvailableEvents().isEmpty());
  }
  @Test
  public void findGizmoEvent() {
    EventOrganizer eventOrganizer = new EventOrganizer();
    Event gizmoEvent = Fixtures.createEvent("Gizmo");

    assertTrue(eventOrganizer.findAvailableEvents().contains(gizmoEvent));
  }