1
 2
 3import 'package:blood_pressure_app/components/custom_banner.dart';
 4import 'package:flutter/material.dart';
 5import 'package:flutter_test/flutter_test.dart';
 6
 7import '../util.dart';
 8
 9void main() {
10  testWidgets('should show information and allow interaction', (tester) async {
11    int callCount = 0;
12    await tester.pumpWidget(materialApp(CustomBanner(
13      content: const Text('custom banner text'),
14      action: IconButton(
15        icon: const Icon(Icons.add_circle_outline),
16        onPressed: () {
17          callCount++;
18        },
19      ),
20    ),),);
21    expect(find.text('custom banner text'), findsOneWidget);
22    expect(find.byIcon(Icons.add_circle_outline), findsOneWidget);
23
24    expect(callCount, 0);
25    await tester.tap(find.byIcon(Icons.add_circle_outline));
26    await tester.pumpAndSettle();
27    expect(callCount, 1);
28  });
29  testWidgets('should work after launched as MaterialBanner', (tester) async {
30    int callCount = 0;
31    await tester.pumpWidget(materialApp(Builder(
32      builder: (context) => IconButton(
33          icon: const Icon(Icons.start),
34          onPressed: () {
35            ScaffoldMessenger.of(context).showMaterialBanner(
36              CustomBanner(
37                content: const Text('custom banner text'),
38                action: IconButton(
39                  icon: const Icon(Icons.add_circle_outline),
40                  onPressed: () {
41                    callCount++;
42                  },
43                ),
44              ),
45            );
46          },
47        ),
48    ),),);
49    expect(find.byType(CustomBanner), findsNothing);
50    expect(find.byIcon(Icons.start), findsOneWidget);
51    await tester.tap(find.byIcon(Icons.start));
52    await tester.pumpAndSettle();
53    expect(find.byType(CustomBanner), findsOneWidget);
54
55    expect(find.text('custom banner text'), findsOneWidget);
56    expect(find.byIcon(Icons.add_circle_outline), findsOneWidget);
57
58    expect(callCount, 0);
59    await tester.tap(find.byIcon(Icons.add_circle_outline));
60    await tester.pumpAndSettle();
61    expect(callCount, 1);
62  });
63}