halkyon/packages/halkyon_ui/test/widget/text_limits_test.dart

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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,
);
});
}