import 'package:flutter_test/flutter_test.dart';
import 'package:halkyon_app/halkyon_app.dart';

void main() {
  test('a subdivision is named in the language asked for, else in English, '
      'and one without a name not at all', () async {
    const names = MemorySubdivisionNames({
      'US-CA': {'en': 'California', 'de': 'Kalifornien'},
      'US-TX': {'en': 'Texas'},
    });

    expect(await names.nameOf('US-CA', 'de'), 'Kalifornien');
    expect(await names.nameOf('us-ca', 'de'), 'Kalifornien');
    expect(await names.nameOf('US-TX', 'de'), 'Texas');
    expect(await names.nameOf('US-ZZ', 'en'), isNull);
  });

  testWidgets("Unicode CLDR's names come with the package, in English and "
      'German', (tester) async {
    final names = await tester.runAsync(
      () async => (
        en: await const AssetSubdivisionNames().nameOf('US-CA', 'en'),
        de: await const AssetSubdivisionNames().nameOf('US-CA', 'de'),
        texas: await const AssetSubdivisionNames().nameOf('US-TX', 'de'),
        scotland: await const AssetSubdivisionNames().nameOf('GB-SCT', 'de'),
        unknown: await const AssetSubdivisionNames().nameOf('US-ZZ', 'en'),
      ),
    );

    expect(names?.en, 'California');
    expect(names?.de, 'Kalifornien');
    expect(names?.texas, 'Texas', reason: 'German as English, kept once');
    expect(names?.scotland, 'Schottland');
    expect(names?.unknown, isNull);
  });
}