Files named displayedDaysFor*CalculationTestData hold data for testing if UISchedule caluclates dates that javascript widget will need for initial date range. Here is the format: a,b,c,d,e,f,g,h,i,i,j,k where a - day of week from which week starts (1-sunday,2-monday,etc.) b - show weekends (1-true,0-false) c - initial date year d - initial date month e - initial date day f - expected start year g - expected start month h - expected start day i - expected end year j - expected end month k - expected end day If anything in algorithm changes and test data will become invalid, they can be easily recreated by putting following code into UISchedule.getScheduleData method Calendar calendar = Calendar.getInstance(); calendar.setTime(startDate); // calendar.add(Calendar.DATE, 3); //for generating data for week view // calendar.add(Calendar.DATE, 9); //for generating data for month view //for generating data for day view no incrementing is required setDate(calendar.getTime()); final Date firstDisplayedDay = getFirstDisplayedDay(this); Calendar firstDayCalendar = Calendar.getInstance(); firstDayCalendar.setTime(firstDisplayedDay); Calendar startDateCalendar = Calendar.getInstance(); startDateCalendar.setTime(startDate); Calendar endDateCalendar = Calendar.getInstance(); endDateCalendar.setTime(endDate); Calendar lastDayCalendar = Calendar.getInstance(); lastDayCalendar.setTime(getLastDisplayedDate(this)); System.out.println("" + getFirstDay() + "," + (isShowWeekends(this) ? 1 : 0) + "," + calendar.get(Calendar.YEAR) + "," + calendar.get(Calendar.MONTH) + "," + calendar.get(Calendar.DATE) + "," + startDateCalendar.get(Calendar.YEAR) + "," + startDateCalendar.get(Calendar.MONTH) + "," + startDateCalendar.get(Calendar.DATE) + "," + endDateCalendar.get(Calendar.YEAR) + "," + endDateCalendar.get(Calendar.MONTH) + "," + endDateCalendar.get(Calendar.DATE) // + "," + firstDayCalendar.get(Calendar.YEAR) + "," + firstDayCalendar.get(Calendar.MONTH) + "," + firstDayCalendar.get(Calendar.DATE) // + "," + lastDayCalendar.get(Calendar.YEAR) + "," + lastDayCalendar.get(Calendar.MONTH) + "," + lastDayCalendar.get(Calendar.DATE) ); If you do not want to click several thousand times to navigate through dates in schedule widget just add this to your page (index.xhtml in demo fits great): Test data should cover combinations of firstDay (1-7), showWeekends(true/false) and : - 20 years for month view - 5 years for week view For day view it is unnecesary to include combinations of firstDay, and date range should cover 2 years only. Just remember to avoid blank lines, especially at the end of file.