fullcalendar/tests/automated/legacy/getEventSources.js

describe('getEventSources', function() {

  pushOptions({
    now: '2015-08-07',
    defaultView: 'agendaWeek',
    eventSources: [
      {
        events: [
          { id: 1, start: '2015-08-07T02:00:00', end: '2015-08-07T03:00:00', title: 'event A' }
        ]
      },
      {
        events: [
          { id: 2, start: '2015-08-07T03:00:00', end: '2015-08-07T04:00:00', title: 'event B' }
        ]
      },
      {
        events: [
          { id: 3, start: '2015-08-07T04:00:00', end: '2015-08-07T05:00:00', title: 'event C' }
        ]
      }
    ]
  })

  it('does not mutate when removeEventSource is called', function(done) {
    initCalendar()
    var eventSources = currentCalendar.getEventSources()
    expect(eventSources.length).toBe(3)

    // prove that eventSources is a copy, and wasn't mutated
    currentCalendar.removeEventSource(eventSources[0])
    expect(eventSources.length).toBe(3)

    done()
  })

})