Created
October 4, 2021 07:59
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| testWidgets("Show error text widget when future returns error", | |
| (WidgetTester tester) async { | |
| Future<List<Contact>>? future; | |
| final contactsScreen = MaterialApp( | |
| home: buildContactList( | |
| contacts: future, | |
| ), | |
| ); | |
| await tester.pumpWidget(contactsScreen); | |
| await tester.pumpAndSettle(); | |
| final errorContactText = find.text("Oops contact load failed !"); | |
| expect(errorContactText, findsOneWidget); | |
| }); | |
| Widget buildContactList({required contacts}) { | |
| return FutureBuilder<List<Contact>>( | |
| future: contacts, | |
| builder: (context, snapshot) { | |
| if (snapshot.hasData) { | |
| return ListView.builder( | |
| itemCount: snapshot.data!.length, | |
| itemBuilder: (context, index) { | |
| return Card( | |
| margin: EdgeInsets.all(10.0), | |
| child: ListTile( | |
| leading: CircleAvatar( | |
| radius: 40, | |
| backgroundImage: AssetImage("assets/icons/img_avatar.png"), | |
| ), | |
| title: Text(snapshot.data![index].getName()), | |
| subtitle: Text(snapshot.data![index].getContactNumber()), | |
| ), | |
| ); | |
| }); | |
| } else if (snapshot.hasError) { | |
| print("haserror"); | |
| return Text( | |
| 'Oops contact load failed !', | |
| style: TextStyle( | |
| color: Colors.red, | |
| fontSize: 20, | |
| ), | |
| ); | |
| } else if (snapshot.data == null) { | |
| return Text('No Contacts'); | |
| } | |
| return Center( | |
| child: const CircularProgressIndicator(), | |
| ); | |
| }, | |
| ); | |
| } |
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