@Test public void joeBuysStandardTicketForGizmoEvent() { EventOrganizer eventOrganizer = new EventOrganizer(); Event gizmoEvent = Fixtures.createEvent("Gizmo"); TicketType standardTicketType = Fixtures.createTicketType("Standard"); eventOrganizer.buyTicket(gizmoEvent, "Joe", standardTicketType); assertTrue(eventOrganizer.hasValidTicket("Joe", gizmoEvent)); }