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// 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_test/flutter_test.dart';
import 'package:flutter/material.dart';
class TestOverlayRoute extends OverlayRoute<void> {
TestOverlayRoute({ RouteSettings settings }) : super(settings: settings);
@override
Iterable<OverlayEntry> createOverlayEntries() sync* {
yield OverlayEntry(builder: _build);
}
Widget _build(BuildContext context) => const Text('Overlay');
}
class PersistentBottomSheetTest extends StatefulWidget {
const PersistentBottomSheetTest({ Key key }) : super(key: key);
@override
PersistentBottomSheetTestState createState() => PersistentBottomSheetTestState();
}
class PersistentBottomSheetTestState extends State<PersistentBottomSheetTest> {
final GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey<ScaffoldState>();
bool setStateCalled = false;
void showBottomSheet() {
_scaffoldKey.currentState.showBottomSheet<void>((BuildContext context) {
return const Text('bottomSheet');
})
.closed.whenComplete(() {
setState(() {
setStateCalled = true;
});
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
key: _scaffoldKey,
body: const Text('Sheet'),
);
}
}
void main() {
testWidgets('Check onstage/offstage handling around transitions', (WidgetTester tester) async {
final GlobalKey containerKey1 = GlobalKey();
final GlobalKey containerKey2 = GlobalKey();
final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{
'/': (_) => Container(key: containerKey1, child: const Text('Home')),
'/settings': (_) => Container(key: containerKey2, child: const Text('Settings')),
};
await tester.pumpWidget(MaterialApp(routes: routes));
expect(find.text('Home'), isOnstage);
expect(find.text('Settings'), findsNothing);
expect(find.text('Overlay'), findsNothing);
expect(Navigator.canPop(containerKey1.currentContext), isFalse);
Navigator.pushNamed(containerKey1.currentContext, '/settings');
expect(Navigator.canPop(containerKey1.currentContext), isTrue);
await tester.pump();
expect(find.text('Home'), isOnstage);
expect(find.text('Settings', skipOffstage: false), isOffstage);
expect(find.text('Overlay'), findsNothing);
await tester.pump(const Duration(milliseconds: 16));
expect(find.text('Home'), isOnstage);
expect(find.text('Settings'), isOnstage);
expect(find.text('Overlay'), findsNothing);
await tester.pump(const Duration(seconds: 1));
expect(find.text('Home'), findsNothing);
expect(find.text('Settings'), isOnstage);
expect(find.text('Overlay'), findsNothing);
Navigator.push(containerKey2.currentContext, TestOverlayRoute());
await tester.pump();
expect(find.text('Home'), findsNothing);
expect(find.text('Settings'), isOnstage);
expect(find.text('Overlay'), isOnstage);
await tester.pump(const Duration(seconds: 1));
expect(find.text('Home'), findsNothing);
expect(find.text('Settings'), isOnstage);
expect(find.text('Overlay'), isOnstage);
expect(Navigator.canPop(containerKey2.currentContext), isTrue);
Navigator.pop(containerKey2.currentContext);
await tester.pump();
expect(find.text('Home'), findsNothing);
expect(find.text('Settings'), isOnstage);
expect(find.text('Overlay'), findsNothing);
await tester.pump(const Duration(seconds: 1));
expect(find.text('Home'), findsNothing);
expect(find.text('Settings'), isOnstage);
expect(find.text('Overlay'), findsNothing);
expect(Navigator.canPop(containerKey2.currentContext), isTrue);
Navigator.pop(containerKey2.currentContext);
await tester.pump();
await tester.pump();
expect(find.text('Home'), isOnstage);
expect(find.text('Settings'), isOnstage);
expect(find.text('Overlay'), findsNothing);
await tester.pump(const Duration(seconds: 1));
expect(find.text('Home'), isOnstage);
expect(find.text('Settings'), findsNothing);
expect(find.text('Overlay'), findsNothing);
expect(Navigator.canPop(containerKey1.currentContext), isFalse);
});
testWidgets('Check back gesture disables Heroes', (WidgetTester tester) async {
final GlobalKey containerKey1 = GlobalKey();
final GlobalKey containerKey2 = GlobalKey();
const String kHeroTag = 'hero';
final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{
'/': (_) => Scaffold(
key: containerKey1,
body: Container(
color: const Color(0xff00ffff),
child: const Hero(
tag: kHeroTag,
child: Text('Home'),
),
),
),
'/settings': (_) => Scaffold(
key: containerKey2,
body: Container(
padding: const EdgeInsets.all(100.0),
color: const Color(0xffff00ff),
child: const Hero(
tag: kHeroTag,
child: Text('Settings'),
),
),
),
};
await tester.pumpWidget(MaterialApp(routes: routes));
Navigator.pushNamed(containerKey1.currentContext, '/settings');
await tester.pump();
await tester.pump(const Duration(milliseconds: 16));
expect(find.text('Settings'), isOnstage);
// Settings text is heroing to its new location
Offset settingsOffset = tester.getTopLeft(find.text('Settings'));
expect(settingsOffset.dx, greaterThan(0.0));
expect(settingsOffset.dx, lessThan(100.0));
expect(settingsOffset.dy, greaterThan(0.0));
expect(settingsOffset.dy, lessThan(100.0));
await tester.pump(const Duration(seconds: 1));
expect(find.text('Home'), findsNothing);
expect(find.text('Settings'), isOnstage);
// Drag from left edge to invoke the gesture.
final TestGesture gesture = await tester.startGesture(const Offset(5.0, 100.0));
await gesture.moveBy(const Offset(50.0, 0.0));
await tester.pump();
// Home is now visible.
expect(find.text('Home'), isOnstage);
expect(find.text('Settings'), isOnstage);
// Home page is sliding in from the left, no heroes.
final Offset homeOffset = tester.getTopLeft(find.text('Home'));
expect(homeOffset.dx, lessThan(0.0));
expect(homeOffset.dy, 0.0);
// Settings page is sliding off to the right, no heroes.
settingsOffset = tester.getTopLeft(find.text('Settings'));
expect(settingsOffset.dx, greaterThan(100.0));
expect(settingsOffset.dy, 100.0);
}, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS, TargetPlatform.macOS }));
testWidgets("Check back gesture doesn't start during transitions", (WidgetTester tester) async {
final GlobalKey containerKey1 = GlobalKey();
final GlobalKey containerKey2 = GlobalKey();
final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{
'/': (_) => Scaffold(key: containerKey1, body: const Text('Home')),
'/settings': (_) => Scaffold(key: containerKey2, body: const Text('Settings')),
};
await tester.pumpWidget(MaterialApp(routes: routes));
Navigator.pushNamed(containerKey1.currentContext, '/settings');
await tester.pump();
await tester.pump(const Duration(milliseconds: 100));
// We are mid-transition, both pages are on stage.
expect(find.text('Home'), isOnstage);
expect(find.text('Settings'), isOnstage);
// Drag from left edge to invoke the gesture. (near bottom so we grab
// the Settings page as it comes up).
TestGesture gesture = await tester.startGesture(const Offset(5.0, 550.0));
await gesture.moveBy(const Offset(500.0, 0.0));
await gesture.up();
await tester.pump();
await tester.pump(const Duration(milliseconds: 1000));
// The original forward navigation should have completed, instead of the
// back gesture, since we were mid transition.
expect(find.text('Home'), findsNothing);
expect(find.text('Settings'), isOnstage);
// Try again now that we're settled.
gesture = await tester.startGesture(const Offset(5.0, 550.0));
await gesture.moveBy(const Offset(500.0, 0.0));
await gesture.up();
await tester.pump();
await tester.pump(const Duration(milliseconds: 1000));
expect(find.text('Home'), isOnstage);
expect(find.text('Settings'), findsNothing);
}, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS, TargetPlatform.macOS }));
// Tests bug https://github.com/flutter/flutter/issues/6451
testWidgets('Check back gesture with a persistent bottom sheet showing', (WidgetTester tester) async {
final GlobalKey containerKey1 = GlobalKey();
final GlobalKey containerKey2 = GlobalKey();
final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{
'/': (_) => Scaffold(key: containerKey1, body: const Text('Home')),
'/sheet': (_) => PersistentBottomSheetTest(key: containerKey2),
};
await tester.pumpWidget(MaterialApp(routes: routes));
Navigator.pushNamed(containerKey1.currentContext, '/sheet');
await tester.pump();
await tester.pump(const Duration(seconds: 1));
expect(find.text('Home'), findsNothing);
expect(find.text('Sheet'), isOnstage);
// Drag from left edge to invoke the gesture. We should go back.
TestGesture gesture = await tester.startGesture(const Offset(5.0, 100.0));
await gesture.moveBy(const Offset(500.0, 0.0));
await gesture.up();
await tester.pump();
await tester.pump(const Duration(seconds: 1));
Navigator.pushNamed(containerKey1.currentContext, '/sheet');
await tester.pump();
await tester.pump(const Duration(seconds: 1));
expect(find.text('Home'), findsNothing);
expect(find.text('Sheet'), isOnstage);
// Show the bottom sheet.
final PersistentBottomSheetTestState sheet = containerKey2.currentState as PersistentBottomSheetTestState;
sheet.showBottomSheet();
await tester.pump(const Duration(seconds: 1));
// Drag from left edge to invoke the gesture. Nothing should happen.
gesture = await tester.startGesture(const Offset(5.0, 100.0));
await gesture.moveBy(const Offset(500.0, 0.0));
await gesture.up();
await tester.pump();
await tester.pump(const Duration(seconds: 1));
expect(find.text('Home'), findsNothing);
expect(find.text('Sheet'), isOnstage);
// Sheet did not call setState (since the gesture did nothing).
expect(sheet.setStateCalled, isFalse);
}, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS, TargetPlatform.macOS }));
testWidgets('Test completed future', (WidgetTester tester) async {
final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{
'/': (_) => const Center(child: Text('home')),
'/next': (_) => const Center(child: Text('next')),
};
await tester.pumpWidget(MaterialApp(routes: routes));
final PageRoute<void> route = MaterialPageRoute<void>(
settings: const RouteSettings(name: '/page'),
builder: (BuildContext context) => const Center(child: Text('page')),
);
int popCount = 0;
route.popped.whenComplete(() {
popCount += 1;
});
int completeCount = 0;
route.completed.whenComplete(() {
completeCount += 1;
});
expect(popCount, 0);
expect(completeCount, 0);
Navigator.push(tester.element(find.text('home')), route);
expect(popCount, 0);
expect(completeCount, 0);
await tester.pump();
expect(popCount, 0);
expect(completeCount, 0);
await tester.pump(const Duration(milliseconds: 100));
expect(popCount, 0);
expect(completeCount, 0);
await tester.pump(const Duration(milliseconds: 100));
expect(popCount, 0);
expect(completeCount, 0);
await tester.pump(const Duration(seconds: 1));
expect(popCount, 0);
expect(completeCount, 0);
Navigator.pop(tester.element(find.text('page')));
expect(popCount, 0);
expect(completeCount, 0);
await tester.pump();
expect(popCount, 1);
expect(completeCount, 0);
await tester.pump(const Duration(milliseconds: 100));
expect(popCount, 1);
expect(completeCount, 0);
await tester.pump(const Duration(milliseconds: 100));
expect(popCount, 1);
expect(completeCount, 0);
await tester.pump(const Duration(seconds: 1));
expect(popCount, 1);
expect(completeCount, 1);
});
}