red: getCalendarWithValidYear() test error message
green
refactor
refactor
refactor: constant renamed
red: getCalendarWithValidYear, test condition added
green
refactor: contant name changed
refactor
refactor: added method to CustomCalendar to store error messages
red: com.rsp.calviewer.calendar.CustomCalendarTest.calendarHasError()
green
red: com.rsp.calviewer.calendar.CustomCalendarTest.calendarHasError()
red: com.rsp.calviewer.calendar.CustomCalendarTest.calendarHasError()
green
refactor: constant extracted
refactor: using constant in test
red: com.rsp.calviewer.calendar.CustomCalendarTest.calendarHasErrorWhenIsCreatedWithAnInvalidYearNumber()
green
refactor: constant extracted