blob: a994f22d0aa4d233dff97cafc838daca7ef6c3a5 [file] [log] [blame]
// 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/widgets/page_view/page_view.0.dart' as example;
import 'package:flutter_test/flutter_test.dart';
void main() {
testWidgets('PageView swipe gestures on mobile platforms', (WidgetTester tester) async {
await tester.pumpWidget(
const example.PageViewExampleApp(),
);
// Verify that first page is shown initially.
expect(find.text('First Page'), findsOneWidget);
// Swipe to the left.
await tester.fling(find.text('First Page'), const Offset(-300.0, 0.0), 3000);
await tester.pumpAndSettle();
// Verify that the second page is shown.
expect(find.text('Second Page'), findsOneWidget);
// Swipe back to the right.
await tester.fling(find.text('Second Page'), const Offset(300.0, 0.0), 3000);
await tester.pumpAndSettle();
// Verify that first page is shown.
expect(find.text('First Page'), findsOneWidget);
}, variant: TargetPlatformVariant.mobile());
testWidgets('PageView navigation using forward/backward buttons on desktop platforms', (WidgetTester tester) async {
await tester.pumpWidget(
const example.PageViewExampleApp(),
);
// Verify that first page is shown along with forward/backward buttons in page indicator.
expect(find.text('First Page'), findsOneWidget);
expect(find.byType(TabPageSelector), findsOneWidget);
// Tap forward button on page indicator area.
await tester.tap(find.byIcon(Icons.arrow_right_rounded));
await tester.pumpAndSettle();
// Verify that second page is shown.
expect(find.text('Second Page'), findsOneWidget);
// Verify that page indicator index is updated.
final TabPageSelector pageIndicator = tester.widget<TabPageSelector>(find.byType(TabPageSelector));
expect(pageIndicator.controller?.index, 1);
// Verify that page view index is also updated with same index to page indicator.
final PageView pageView = tester.widget<PageView>(find.byType(PageView));
expect(pageView.controller.page, 1);
// Tap backward button on page indicator area.
await tester.tap(find.byIcon(Icons.arrow_left_rounded));
await tester.pumpAndSettle();
// Verify that first page is shown.
expect(find.text('First Page'), findsOneWidget);
// Tap backward button one more time.
await tester.tap(find.byIcon(Icons.arrow_left_rounded));
await tester.pumpAndSettle();
// Verify that first page is still shown.
expect(find.text('First Page'), findsOneWidget);
}, variant: TargetPlatformVariant.desktop());
}