import 'package:flutter_test/flutter_test.dart';
import 'package:halkyon_ui/halkyon_ui.dart';
import 'package:material_ui/material_ui.dart';

void main() {
  Future<TextEditingController> show(WidgetTester tester) async {
    final controller = TextEditingController();
    addTearDown(controller.dispose);
    await tester.pumpWidget(
      MaterialApp(
        home: Scaffold(
          body: TextField(
            controller: controller,
            maxLength: TextLimits.name,
            buildCounter: nearLimitCounter,
          ),
        ),
      ),
    );
    return controller;
  }

  testWidgets('a field counts only near its limit, and stops there', (
    tester,
  ) async {
    final controller = await show(tester);

    await tester.enterText(find.byType(TextField), 'a' * 10);
    await tester.pump();
    expect(find.textContaining(' / ${TextLimits.name}'), findsNothing);

    await tester.enterText(find.byType(TextField), 'a' * 35);
    await tester.pump();
    expect(find.text('35 / ${TextLimits.name}'), findsOneWidget);

    await tester.enterText(find.byType(TextField), 'a' * 100);
    await tester.pump();
    expect(controller.text, hasLength(TextLimits.name));
    expect(
      find.text('${TextLimits.name} / ${TextLimits.name}'),
      findsOneWidget,
    );
  });
}