money2_test.dart

import 'package:test/test.dart';
import 'package:money2/money2.dart';

void main() {
  const maxScale = 18;
  const maxInts = 18;

  setUp(() {
    for (var scale = 0; scale <= maxScale; scale++) {
      final c = Currency.create('C$scale', scale, symbol: '=$scale=');
      Currencies().register(c);
    }
  });

  test('scale 0-$maxScale test', () {
    for (var scale = 0; scale <= maxScale; scale++) {
      final c = Currencies().find('C$scale');
      expect(c, isNotNull);
      final str = scale == 0 ? '1' : '1.${'0' * (scale - 1)}1';
      final fmt = scale == 0 ? 'S#' : 'S#.${'#' * scale}';
      expect(Money.parseWithCurrency(str, c!).format(fmt), '=$scale=$str',
          reason: 'Failed with $scale scale');
    }
  });

  test('integers 0-$maxInts test', () {
    for (var ints = 0; ints <= maxInts; ints++) {
      final c = Currencies().find('C0');
      expect(c, isNotNull);
      final str = ints == 0 ? '0' : '9' * ints;
      final fmt = 'S#';
      expect(Money.parseWithCurrency(str, c!).format(fmt), '=0=$str',
          reason: 'Failed with $ints ints');
    }
  });

  test('scale 0-$maxScale and integers 0-$maxInts test', () {
    for (var scale = 0; scale <= maxScale; scale++) {
      for (var ints = 0; ints <= maxInts; ints++) {
        final c = Currencies().find('C$scale');
        expect(c, isNotNull);
        final intsStr = ints == 0 ? '0' : '9' * ints;
        final str = scale == 0 ? intsStr : '$intsStr.${'0' * (scale - 1)}1';
        final fmt = scale == 0 ? 'S#' : 'S#.${'#' * scale}';
        expect(Money.parseWithCurrency(str, c!).format(fmt), '=$scale=$str',
            reason: 'Failed with $scale scale, $ints ints');
      }
    }
  });
}