examples/api/test/material/radio_list_tile/custom_labeled_radio.1_test.dart

// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'package:flutter/material.dart';
import 'package:flutter_api_samples/material/radio_list_tile/custom_labeled_radio.1.dart' as example;
import 'package:flutter_test/flutter_test.dart';

void main() {
  testWidgets('Tapping LabeledRadio toggles the radio', (WidgetTester tester) async {
    await tester.pumpWidget(
      const example.LabeledRadioApp(),
    );

    // First Radio is initially unchecked.
    Radio<bool> radio = tester.widget(find.byType(Radio<bool>).first);
    expect(radio.value, true);
    expect(radio.groupValue, false);

    // Last Radio is initially checked.
    radio = tester.widget(find.byType(Radio<bool>).last);
    expect(radio.value, false);
    expect(radio.groupValue, false);

    // Tap the first labeled radio to toggle the Radio widget.
    await tester.tap(find.byType(example.LabeledRadio).first);
    await tester.pumpAndSettle();

    // First Radio is now checked.
    radio = tester.widget(find.byType(Radio<bool>).first);
    expect(radio.value, true);
    expect(radio.groupValue, true);

    // Last Radio is now unchecked.
    radio = tester.widget(find.byType(Radio<bool>).last);
    expect(radio.value, false);
    expect(radio.groupValue, true);
  });
}