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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.
// @dart = 2.8
import 'package:flutter/foundation.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import '../widgets/semantics_tester.dart';
void main() {
testWidgets('Drawer control test', (WidgetTester tester) async {
const Key containerKey = Key('container');
await tester.pumpWidget(
MaterialApp(
home: Scaffold(
drawer: Drawer(
child: ListView(
children: <Widget>[
DrawerHeader(
child: Container(
key: containerKey,
child: const Text('header'),
),
),
const ListTile(
leading: Icon(Icons.archive),
title: Text('Archive'),
),
],
),
),
),
),
);
expect(find.text('Archive'), findsNothing);
final ScaffoldState state = tester.firstState(find.byType(Scaffold));
state.openDrawer();
await tester.pump();
await tester.pump(const Duration(seconds: 1));
expect(find.text('Archive'), findsOneWidget);
RenderBox box = tester.renderObject(find.byType(DrawerHeader));
expect(box.size.height, equals(160.0 + 8.0 + 1.0)); // height + bottom margin + bottom edge
final double drawerWidth = box.size.width;
final double drawerHeight = box.size.height;
box = tester.renderObject(find.byKey(containerKey));
expect(box.size.width, equals(drawerWidth - 2 * 16.0));
expect(box.size.height, equals(drawerHeight - 2 * 16.0));
expect(find.text('header'), findsOneWidget);
});
testWidgets('Drawer dismiss barrier has label', (WidgetTester tester) async {
final SemanticsTester semantics = SemanticsTester(tester);
await tester.pumpWidget(
const MaterialApp(
home: Scaffold(
drawer: Drawer(),
),
),
);
final ScaffoldState state = tester.firstState(find.byType(Scaffold));
state.openDrawer();
await tester.pump();
await tester.pump(const Duration(seconds: 1));
expect(semantics, includesNodeWith(
label: const DefaultMaterialLocalizations().modalBarrierDismissLabel,
actions: <SemanticsAction>[SemanticsAction.tap],
));
semantics.dispose();
}, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS, TargetPlatform.macOS }));
testWidgets('Drawer dismiss barrier has no label', (WidgetTester tester) async {
final SemanticsTester semantics = SemanticsTester(tester);
await tester.pumpWidget(
const MaterialApp(
home: Scaffold(
drawer: Drawer(),
),
),
);
final ScaffoldState state = tester.firstState(find.byType(Scaffold));
state.openDrawer();
await tester.pump();
await tester.pump(const Duration(seconds: 1));
expect(semantics, isNot(includesNodeWith(
label: const DefaultMaterialLocalizations().modalBarrierDismissLabel,
actions: <SemanticsAction>[SemanticsAction.tap],
)));
semantics.dispose();
}, variant: TargetPlatformVariant.only(TargetPlatform.android));
testWidgets('Scaffold drawerScrimColor', (WidgetTester tester) async {
// The scrim is a Container within a Semantics node labeled "Dismiss",
// within a DrawerController. Sorry.
Container getScrim() {
return tester.widget<Container>(
find.descendant(
of: find.descendant(
of: find.byType(DrawerController),
matching: find.byWidgetPredicate((Widget widget) {
return widget is Semantics
&& widget.properties.label == 'Dismiss';
}),
),
matching: find.byType(Container),
),
);
}
final GlobalKey<ScaffoldState> scaffoldKey = GlobalKey<ScaffoldState>();
Widget buildFrame({ Color drawerScrimColor }) {
return MaterialApp(
home: Scaffold(
key: scaffoldKey,
drawerScrimColor: drawerScrimColor,
drawer: Drawer(
child: Builder(
builder: (BuildContext context) {
return GestureDetector(
onTap: () { Navigator.pop(context); }, // close drawer
);
},
),
),
),
);
}
// Default drawerScrimColor
await tester.pumpWidget(buildFrame(drawerScrimColor: null));
scaffoldKey.currentState.openDrawer();
await tester.pumpAndSettle();
expect(getScrim().color, Colors.black54);
await tester.tap(find.byType(Drawer));
await tester.pumpAndSettle();
expect(find.byType(Drawer), findsNothing);
// Specific drawerScrimColor
await tester.pumpWidget(buildFrame(drawerScrimColor: const Color(0xFF323232)));
scaffoldKey.currentState.openDrawer();
await tester.pumpAndSettle();
expect(getScrim().color, const Color(0xFF323232));
await tester.tap(find.byType(Drawer));
await tester.pumpAndSettle();
expect(find.byType(Drawer), findsNothing);
});
testWidgets('Open/close drawers by flinging', (WidgetTester tester) async {
await tester.pumpWidget(
MaterialApp(
home: Scaffold(
drawer: Drawer(
child: Container(
child: const Text('start drawer'),
),
),
endDrawer: Drawer(
child: Container(
child: const Text('end drawer'),
),
),
),
),
);
// In the beginning, drawers are closed
final ScaffoldState state = tester.firstState(find.byType(Scaffold));
expect(state.isDrawerOpen, equals(false));
expect(state.isEndDrawerOpen, equals(false));
final Size size = tester.getSize(find.byType(Scaffold));
// A fling from the left opens the start drawer
await tester.flingFrom(Offset(0, size.height / 2), const Offset(80, 0), 500);
await tester.pumpAndSettle();
expect(state.isDrawerOpen, equals(true));
expect(state.isEndDrawerOpen, equals(false));
// Now, a fling from the right closes the drawer
await tester.flingFrom(Offset(size.width - 1, size.height / 2), const Offset(-80, 0), 500);
await tester.pumpAndSettle();
expect(state.isDrawerOpen, equals(false));
expect(state.isEndDrawerOpen, equals(false));
// Another fling from the right opens the end drawer
await tester.flingFrom(Offset(size.width - 1, size.height / 2), const Offset(-80, 0), 500);
await tester.pumpAndSettle();
expect(state.isDrawerOpen, equals(false));
expect(state.isEndDrawerOpen, equals(true));
// And a fling from the left closes it
await tester.flingFrom( Offset(0, size.height / 2), const Offset(80, 0), 500);
await tester.pumpAndSettle();
expect(state.isDrawerOpen, equals(false));
expect(state.isEndDrawerOpen, equals(false));
});
}