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feat: Add custom sort for EventController
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import 'package:calendar_view/calendar_view.dart'; | ||
import 'package:flutter_test/flutter_test.dart'; | ||
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||
void main() { | ||
group('Custom sort', () { | ||
final date = DateTime(2024, 01, 01); | ||
const oneHour = Duration(hours: 1); | ||
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/// The bool value indicates if the event is "important" or "regular". | ||
final first = CalendarEventData( | ||
title: 'Regular event - first', | ||
event: false, | ||
date: date, | ||
startTime: date.add(oneHour), | ||
endTime: date.add(oneHour * 2), | ||
); | ||
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final second = CalendarEventData( | ||
title: 'Important event - second', | ||
event: true, | ||
date: date, | ||
startTime: date.add(oneHour * 2), | ||
endTime: date.add(oneHour * 3), | ||
); | ||
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final third = CalendarEventData( | ||
title: 'Important event - third', | ||
event: true, | ||
date: date, | ||
startTime: date.add(oneHour * 3), | ||
endTime: date.add(oneHour * 4), | ||
); | ||
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final fourth = CalendarEventData( | ||
title: 'Regular event - fourth', | ||
event: false, | ||
date: date, | ||
startTime: date.add(oneHour * 4), | ||
endTime: date.add(oneHour * 5), | ||
); | ||
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/// Events are in random order | ||
final events = <CalendarEventData<bool>>[ | ||
first, | ||
third, | ||
fourth, | ||
second, | ||
]; | ||
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late EventController<bool> controller; | ||
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test('Should return events in startTimeWise order', () { | ||
controller = EventController(); | ||
controller.addAll(events); | ||
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final eventsOnDay = controller.getEventsOnDay(date); | ||
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expect(eventsOnDay[0], first); | ||
expect(eventsOnDay[1], second); | ||
expect(eventsOnDay[2], third); | ||
expect(eventsOnDay[3], fourth); | ||
}); | ||
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group('with custom sorter', () { | ||
test('Should return events in custom order', () { | ||
final sorter = (CalendarEventData<bool> a, CalendarEventData<bool> b) { | ||
if (a.event == true && b.event == false) { | ||
return -1; | ||
} else if (a.event == false && b.event == true) { | ||
return 1; | ||
} | ||
return 0; | ||
}; | ||
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controller = EventController( | ||
eventSorter: sorter, | ||
); | ||
controller.addAll(events); | ||
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final eventsOnDay = controller.getEventsOnDay(date); | ||
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expect(eventsOnDay[0], second); | ||
expect(eventsOnDay[1], third); | ||
expect(eventsOnDay[2], first); | ||
expect(eventsOnDay[3], fourth); | ||
}); | ||
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test('Should fallback to default sorter if custom sorter returns 0', () { | ||
/// Sorter that will only sort the fourth event | ||
final sorter = (CalendarEventData<bool> a, CalendarEventData<bool> b) { | ||
if (a.title == 'Regular event - fourth') { | ||
return -1; | ||
} | ||
if (b.title == 'Regular event - fourth') { | ||
return 1; | ||
} | ||
return 0; | ||
}; | ||
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controller = EventController( | ||
eventSorter: sorter, | ||
); | ||
controller.addAll(events); | ||
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final eventsOnDay = controller.getEventsOnDay(date); | ||
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expect(eventsOnDay[0], fourth); | ||
expect(eventsOnDay[1], first); | ||
expect(eventsOnDay[2], second); | ||
expect(eventsOnDay[3], third); | ||
}); | ||
}); | ||
}); | ||
} |