| // 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 'dart:async'; |
| |
| import 'package:flutter/material.dart'; |
| import 'package:flutter_api_samples/widgets/async/stream_builder.0.dart' |
| as example; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| void main() { |
| testWidgets('StreamBuilder listens to internal stream', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| const example.StreamBuilderExampleApp(), |
| ); |
| |
| expect(find.byType(CircularProgressIndicator), findsOneWidget); |
| expect(find.text('Awaiting bids...'), findsOneWidget); |
| |
| await tester.pump(example.StreamBuilderExampleApp.delay); |
| |
| expect(find.byIcon(Icons.check_circle_outline), findsOneWidget); |
| expect(find.text(r'$1'), findsOneWidget); |
| |
| await tester.pump(example.StreamBuilderExampleApp.delay); |
| |
| expect(find.byIcon(Icons.info), findsOneWidget); |
| expect(find.text(r'$1 (closed)'), findsOneWidget); |
| }); |
| |
| testWidgets('BidsStatus correctly displays error state', (WidgetTester tester) async { |
| final StreamController<int> controller = StreamController<int>(); |
| addTearDown(controller.close); |
| |
| controller.onListen = () { |
| controller.addError('Unexpected error!', StackTrace.empty); |
| }; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| home: example.BidsStatus(bids: controller.stream), |
| ), |
| ); |
| await tester.pump(); |
| |
| expect(find.byIcon(Icons.error_outline), findsOneWidget); |
| expect(find.text('Error: Unexpected error!'), findsOneWidget); |
| expect(find.text('Stack trace: ${StackTrace.empty}'), findsOneWidget); |
| }); |
| |
| testWidgets('BidsStatus correctly displays none state', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| const MaterialApp( |
| home: example.BidsStatus(bids: null), |
| ), |
| ); |
| |
| expect(find.byIcon(Icons.info), findsOneWidget); |
| expect(find.text('Select a lot'), findsOneWidget); |
| }); |
| |
| testWidgets('BidsStatus correctly displays waiting state', (WidgetTester tester) async { |
| final StreamController<int> controller = StreamController<int>(); |
| addTearDown(controller.close); |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| home: example.BidsStatus(bids: controller.stream), |
| ), |
| ); |
| |
| expect(find.byType(CircularProgressIndicator), findsOneWidget); |
| expect(find.text('Awaiting bids...'), findsOneWidget); |
| }); |
| |
| testWidgets('BidsStatus correctly displays active state', (WidgetTester tester) async { |
| final StreamController<int> controller = StreamController<int>(); |
| addTearDown(controller.close); |
| |
| controller.onListen = () { |
| controller.add(1); |
| }; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| home: example.BidsStatus(bids: controller.stream), |
| ), |
| ); |
| await tester.pump(); |
| |
| expect(find.byIcon(Icons.check_circle_outline), findsOneWidget); |
| expect(find.text(r'$1'), findsOneWidget); |
| }); |
| |
| testWidgets('BidsStatus correctly displays done state', (WidgetTester tester) async { |
| final StreamController<int> controller = StreamController<int>(); |
| controller.close(); |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| home: example.BidsStatus(bids: controller.stream), |
| ), |
| ); |
| await tester.pump(); |
| |
| expect(find.byIcon(Icons.info), findsOneWidget); |
| expect(find.text('(closed)'), findsOneWidget); |
| }); |
| } |