import 'package:flutter_test/flutter_test.dart';

import 'package:notas/data/note_positioning.dart';

void main() {
  test('converts between stored and displayed positions', () {
    expect(toStoredNotePosition(1500.5), 15005);
    expect(fromStoredNotePosition(15005), 1500.5);
  });

  test('supports descending gaps and rebalance', () {
    expect(nextTopNotePosition(<int>[0, 10000, 20000]), 30000);
    expect(
      midpointNotePosition(higherPosition: 20000, lowerPosition: 10000),
      15000,
    );
    expect(
      midpointNotePosition(higherPosition: 2, lowerPosition: 1),
      isNull,
    );
    expect(rebalanceNotePositions(3), <int>[20000, 10000, 0]);
  });
}