blob: c38bb0cce497dfadf2d0f3c62cdd48ddd1934d9c [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/gestures.dart';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
// This file is for testings that require a `LiveTestWidgetsFlutterBinding`
void main() {
final LiveTestWidgetsFlutterBinding binding = LiveTestWidgetsFlutterBinding();
testWidgets('Input PointerAddedEvent', (WidgetTester tester) async {
await tester.pumpWidget(const MaterialApp(home: Text('Test')));
await tester.pump();
final TestGesture gesture = await tester.createGesture();
// This mimics the start of a gesture as seen on a device, where inputs
// starts with a PointerAddedEvent.
await gesture.addPointer();
// The expected result of the test is not to trigger any assert.
});
testWidgets('Input PointerHoverEvent', (WidgetTester tester) async {
PointerHoverEvent? hoverEvent;
await tester.pumpWidget(MaterialApp(home: MouseRegion(
child: const Text('Test'),
onHover: (PointerHoverEvent event) {
hoverEvent = event;
},
)));
await tester.pump();
final TestGesture gesture = await tester.createGesture(kind: PointerDeviceKind.mouse);
final Offset location = tester.getCenter(find.text('Test'));
// for mouse input without a down event, moveTo generates a hover event
await gesture.moveTo(location);
expect(hoverEvent, isNotNull);
expect(hoverEvent!.position, location);
});
testWidgets('hitTesting works when using setSurfaceSize', (WidgetTester tester) async {
int invocations = 0;
await tester.pumpWidget(
MaterialApp(
home: Center(
child: GestureDetector(
onTap: () {
invocations++;
},
child: const Text('Test'),
),
),
),
);
await tester.tap(find.byType(Text));
await tester.pump();
expect(invocations, 1);
await tester.binding.setSurfaceSize(const Size(200, 300));
await tester.pump();
await tester.tap(find.byType(Text));
await tester.pump();
expect(invocations, 2);
await tester.binding.setSurfaceSize(null);
await tester.pump();
await tester.tap(find.byType(Text));
await tester.pump();
expect(invocations, 3);
});
testWidgets('setSurfaceSize works', (WidgetTester tester) async {
await tester.pumpWidget(const MaterialApp(home: Center(child: Text('Test'))));
final Size windowCenter = tester.binding.window.physicalSize /
tester.binding.window.devicePixelRatio /
2;
final double windowCenterX = windowCenter.width;
final double windowCenterY = windowCenter.height;
Offset widgetCenter = tester.getRect(find.byType(Text)).center;
expect(widgetCenter.dx, windowCenterX);
expect(widgetCenter.dy, windowCenterY);
await tester.binding.setSurfaceSize(const Size(200, 300));
await tester.pump();
widgetCenter = tester.getRect(find.byType(Text)).center;
expect(widgetCenter.dx, 100);
expect(widgetCenter.dy, 150);
await tester.binding.setSurfaceSize(null);
await tester.pump();
widgetCenter = tester.getRect(find.byType(Text)).center;
expect(widgetCenter.dx, windowCenterX);
expect(widgetCenter.dy, windowCenterY);
});
testWidgets("reassembleApplication doesn't get stuck", (WidgetTester tester) async {
// Regression test for https://github.com/flutter/flutter/issues/79150
await expectLater(tester.binding.reassembleApplication(), completes);
}, timeout: const Timeout(Duration(seconds: 30)));
testWidgets('shouldPropagateDevicePointerEvents can override events from ${TestBindingEventSource.device}', (WidgetTester tester) async {
binding.shouldPropagateDevicePointerEvents = true;
await tester.pumpWidget(_ShowNumTaps());
final Offset position = tester.getCenter(find.text('0'));
// Simulates a real device tap.
//
// `handlePointerEventForSource defaults to sending events using
// TestBindingEventSource.device. This will not be forwarded to the actual
// gesture handlers, unless `shouldPropagateDevicePointerEvents` is true.
binding.handlePointerEventForSource(
PointerDownEvent(position: position),
);
binding.handlePointerEventForSource(
PointerUpEvent(position: position),
);
await tester.pump();
expect(find.text('1'), findsOneWidget);
// Reset the value, otherwise the test will fail when it checks that this
// has not been changed as an invariant.
binding.shouldPropagateDevicePointerEvents = false;
});
}
/// A widget that shows the number of times it has been tapped.
class _ShowNumTaps extends StatefulWidget {
@override
_ShowNumTapsState createState() => _ShowNumTapsState();
}
class _ShowNumTapsState extends State<_ShowNumTaps> {
int _counter = 0;
@override
Widget build(BuildContext context) {
return GestureDetector(
onTap: () {
setState(() {
_counter++;
});
},
child: Directionality(
textDirection: TextDirection.ltr,
child: Text(_counter.toString()),
),
);
}
}