blob: 210bc065c5785f4d0909e27c81adea921b8421e4 [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/cupertino.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
void main() {
testWidgetsWithLeakTracking('Default PageTransitionsTheme platform', (WidgetTester tester) async {
await tester.pumpWidget(const MaterialApp(home: Text('home')));
final PageTransitionsTheme theme = Theme.of(tester.element(find.text('home'))).pageTransitionsTheme;
expect(theme.builders, isNotNull);
for (final TargetPlatform platform in TargetPlatform.values) {
switch (platform) {
case TargetPlatform.android:
case TargetPlatform.iOS:
case TargetPlatform.macOS:
expect(
theme.builders[platform],
isNotNull,
reason: 'theme builder for $platform is null',
);
case TargetPlatform.fuchsia:
case TargetPlatform.linux:
case TargetPlatform.windows:
expect(
theme.builders[platform],
isNull,
reason: 'theme builder for $platform is not null',
);
}
}
});
testWidgetsWithLeakTracking('Default PageTransitionsTheme builds a CupertinoPageTransition', (WidgetTester tester) async {
final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{
'/': (BuildContext context) => Material(
child: TextButton(
child: const Text('push'),
onPressed: () { Navigator.of(context).pushNamed('/b'); },
),
),
'/b': (BuildContext context) => const Text('page b'),
};
await tester.pumpWidget(
MaterialApp(
routes: routes,
),
);
expect(Theme.of(tester.element(find.text('push'))).platform, debugDefaultTargetPlatformOverride);
expect(find.byType(CupertinoPageTransition), findsOneWidget);
await tester.tap(find.text('push'));
await tester.pumpAndSettle();
expect(find.text('page b'), findsOneWidget);
expect(find.byType(CupertinoPageTransition), findsOneWidget);
}, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS, TargetPlatform.macOS }));
testWidgetsWithLeakTracking('Default PageTransitionsTheme builds a _ZoomPageTransition for android', (WidgetTester tester) async {
final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{
'/': (BuildContext context) => Material(
child: TextButton(
child: const Text('push'),
onPressed: () { Navigator.of(context).pushNamed('/b'); },
),
),
'/b': (BuildContext context) => const Text('page b'),
};
await tester.pumpWidget(
MaterialApp(
routes: routes,
),
);
Finder findZoomPageTransition() {
return find.descendant(
of: find.byType(MaterialApp),
matching: find.byWidgetPredicate((Widget w) => '${w.runtimeType}' == '_ZoomPageTransition'),
);
}
expect(Theme.of(tester.element(find.text('push'))).platform, debugDefaultTargetPlatformOverride);
expect(findZoomPageTransition(), findsOneWidget);
await tester.tap(find.text('push'));
await tester.pumpAndSettle();
expect(find.text('page b'), findsOneWidget);
expect(findZoomPageTransition(), findsOneWidget);
}, variant: TargetPlatformVariant.only(TargetPlatform.android));
testWidgetsWithLeakTracking('PageTransitionsTheme override builds a _OpenUpwardsPageTransition', (WidgetTester tester) async {
final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{
'/': (BuildContext context) => Material(
child: TextButton(
child: const Text('push'),
onPressed: () { Navigator.of(context).pushNamed('/b'); },
),
),
'/b': (BuildContext context) => const Text('page b'),
};
await tester.pumpWidget(
MaterialApp(
theme: ThemeData(
pageTransitionsTheme: const PageTransitionsTheme(
builders: <TargetPlatform, PageTransitionsBuilder>{
TargetPlatform.android: OpenUpwardsPageTransitionsBuilder(), // creates a _OpenUpwardsPageTransition
},
),
),
routes: routes,
),
);
Finder findOpenUpwardsPageTransition() {
return find.descendant(
of: find.byType(MaterialApp),
matching: find.byWidgetPredicate((Widget w) => '${w.runtimeType}' == '_OpenUpwardsPageTransition'),
);
}
expect(Theme.of(tester.element(find.text('push'))).platform, debugDefaultTargetPlatformOverride);
expect(findOpenUpwardsPageTransition(), findsOneWidget);
await tester.tap(find.text('push'));
await tester.pumpAndSettle();
expect(find.text('page b'), findsOneWidget);
expect(findOpenUpwardsPageTransition(), findsOneWidget);
}, variant: TargetPlatformVariant.only(TargetPlatform.android));
testWidgetsWithLeakTracking('PageTransitionsTheme override builds a _FadeUpwardsTransition', (WidgetTester tester) async {
final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{
'/': (BuildContext context) => Material(
child: TextButton(
child: const Text('push'),
onPressed: () { Navigator.of(context).pushNamed('/b'); },
),
),
'/b': (BuildContext context) => const Text('page b'),
};
await tester.pumpWidget(
MaterialApp(
theme: ThemeData(
pageTransitionsTheme: const PageTransitionsTheme(
builders: <TargetPlatform, PageTransitionsBuilder>{
TargetPlatform.android: FadeUpwardsPageTransitionsBuilder(), // creates a _FadeUpwardsTransition
},
),
),
routes: routes,
),
);
Finder findFadeUpwardsPageTransition() {
return find.descendant(
of: find.byType(MaterialApp),
matching: find.byWidgetPredicate((Widget w) => '${w.runtimeType}' == '_FadeUpwardsPageTransition'),
);
}
expect(Theme.of(tester.element(find.text('push'))).platform, debugDefaultTargetPlatformOverride);
expect(findFadeUpwardsPageTransition(), findsOneWidget);
await tester.tap(find.text('push'));
await tester.pumpAndSettle();
expect(find.text('page b'), findsOneWidget);
expect(findFadeUpwardsPageTransition(), findsOneWidget);
}, variant: TargetPlatformVariant.only(TargetPlatform.android));
Widget boilerplate({
required bool themeAllowSnapshotting,
bool secondRouteAllowSnapshotting = true,
}) {
return MaterialApp(
theme: ThemeData(
useMaterial3: true,
pageTransitionsTheme: PageTransitionsTheme(
builders: <TargetPlatform, PageTransitionsBuilder>{
TargetPlatform.android: ZoomPageTransitionsBuilder(
allowSnapshotting: themeAllowSnapshotting,
),
},
),
),
onGenerateRoute: (RouteSettings settings) {
if (settings.name == '/') {
return MaterialPageRoute<Widget>(
builder: (_) => const Material(child: Text('Page 1')),
);
}
return MaterialPageRoute<Widget>(
builder: (_) => const Material(child: Text('Page 2')),
allowSnapshotting: secondRouteAllowSnapshotting,
);
},
);
}
bool isTransitioningWithSnapshotting(WidgetTester tester, Finder of) {
final Iterable<Layer> layers = tester.layerListOf(
find.ancestor(of: of, matching: find.byType(SnapshotWidget)).first,
);
final bool hasOneOpacityLayer = layers.whereType<OpacityLayer>().length == 1;
final bool hasOneTransformLayer = layers.whereType<TransformLayer>().length == 1;
// When snapshotting is on, the OpacityLayer and TransformLayer will not be
// applied directly.
return !(hasOneOpacityLayer && hasOneTransformLayer);
}
testWidgetsWithLeakTracking('ZoomPageTransitionsBuilder default route snapshotting behavior', (WidgetTester tester) async {
await tester.pumpWidget(
boilerplate(themeAllowSnapshotting: true),
);
final Finder page1 = find.text('Page 1');
final Finder page2 = find.text('Page 2');
// Transitioning from page 1 to page 2.
tester.state<NavigatorState>(find.byType(Navigator)).pushNamed('/2');
await tester.pump();
await tester.pump(const Duration(milliseconds: 50));
// Exiting route should be snapshotted.
expect(isTransitioningWithSnapshotting(tester, page1), isTrue);
// Entering route should be snapshotted.
expect(isTransitioningWithSnapshotting(tester, page2), isTrue);
await tester.pumpAndSettle();
// Transitioning back from page 2 to page 1.
tester.state<NavigatorState>(find.byType(Navigator)).pop();
await tester.pump();
await tester.pump(const Duration(milliseconds: 50));
// Exiting route should be snapshotted.
expect(isTransitioningWithSnapshotting(tester, page2), isTrue);
// Entering route should be snapshotted.
expect(isTransitioningWithSnapshotting(tester, page1), isTrue);
}, variant: TargetPlatformVariant.only(TargetPlatform.android), skip: kIsWeb); // [intended] rasterization is not used on the web.
testWidgetsWithLeakTracking('ZoomPageTransitionsBuilder.allowSnapshotting can disable route snapshotting', (WidgetTester tester) async {
await tester.pumpWidget(
boilerplate(themeAllowSnapshotting: false),
);
final Finder page1 = find.text('Page 1');
final Finder page2 = find.text('Page 2');
// Transitioning from page 1 to page 2.
tester.state<NavigatorState>(find.byType(Navigator)).pushNamed('/2');
await tester.pump();
await tester.pump(const Duration(milliseconds: 50));
// Exiting route should not be snapshotted.
expect(isTransitioningWithSnapshotting(tester, page1), isFalse);
// Entering route should not be snapshotted.
expect(isTransitioningWithSnapshotting(tester, page2), isFalse);
await tester.pumpAndSettle();
// Transitioning back from page 2 to page 1.
tester.state<NavigatorState>(find.byType(Navigator)).pop();
await tester.pump();
await tester.pump(const Duration(milliseconds: 50));
// Exiting route should not be snapshotted.
expect(isTransitioningWithSnapshotting(tester, page2), isFalse);
// Entering route should not be snapshotted.
expect(isTransitioningWithSnapshotting(tester, page1), isFalse);
}, variant: TargetPlatformVariant.only(TargetPlatform.android), skip: kIsWeb); // [intended] rasterization is not used on the web.
testWidgetsWithLeakTracking('Setting PageRoute.allowSnapshotting to false overrides ZoomPageTransitionsBuilder.allowSnapshotting = true', (WidgetTester tester) async {
await tester.pumpWidget(
boilerplate(
themeAllowSnapshotting: true,
secondRouteAllowSnapshotting: false,
),
);
final Finder page1 = find.text('Page 1');
final Finder page2 = find.text('Page 2');
// Transitioning from page 1 to page 2.
tester.state<NavigatorState>(find.byType(Navigator)).pushNamed('/2');
await tester.pump();
await tester.pump(const Duration(milliseconds: 50));
// First route should be snapshotted.
expect(isTransitioningWithSnapshotting(tester, page1), isTrue);
// Second route should not be snapshotted.
expect(isTransitioningWithSnapshotting(tester, page2), isFalse);
await tester.pumpAndSettle();
}, variant: TargetPlatformVariant.only(TargetPlatform.android), skip: kIsWeb); // [intended] rasterization is not used on the web.
testWidgets('_ZoomPageTransition only causes child widget built once', (WidgetTester tester) async {
// Regression test for https://github.com/flutter/flutter/issues/58345
int builtCount = 0;
final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{
'/': (BuildContext context) => Material(
child: TextButton(
child: const Text('push'),
onPressed: () { Navigator.of(context).pushNamed('/b'); },
),
),
'/b': (BuildContext context) => StatefulBuilder(
builder: (BuildContext context, StateSetter setState) {
builtCount++; // Increase [builtCount] each time the widget build
return TextButton(
child: const Text('pop'),
onPressed: () { Navigator.pop(context); },
);
},
),
};
await tester.pumpWidget(
MaterialApp(
theme: ThemeData(
pageTransitionsTheme: const PageTransitionsTheme(
builders: <TargetPlatform, PageTransitionsBuilder>{
TargetPlatform.android: ZoomPageTransitionsBuilder(), // creates a _ZoomPageTransition
},
),
),
routes: routes,
),
);
// No matter push or pop was called, the child widget should built only once.
await tester.tap(find.text('push'));
await tester.pumpAndSettle();
expect(builtCount, 1);
await tester.tap(find.text('pop'));
await tester.pumpAndSettle();
expect(builtCount, 1);
}, variant: TargetPlatformVariant.only(TargetPlatform.android));
}