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nav_bar_test.dart
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nav_bar_test.dart
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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.
// This file is run as part of a reduced test set in CI on Mac and Windows
// machines.
@Tags(<String>['reduced-test-set'])
library;
import 'package:flutter/cupertino.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter/services.dart';
import 'package:flutter_test/flutter_test.dart';
import '../rendering/mock_canvas.dart';
import '../widgets/semantics_tester.dart';
int count = 0;
void main() {
testWidgets('Middle still in center with asymmetrical actions', (WidgetTester tester) async {
await tester.pumpWidget(
const CupertinoApp(
home: CupertinoNavigationBar(
leading: CupertinoButton(
onPressed: null,
child: Text('Something'),
),
middle: Text('Title'),
),
),
);
// Expect the middle of the title to be exactly in the middle of the screen.
expect(tester.getCenter(find.text('Title')).dx, 400.0);
});
testWidgets('Middle still in center with back button', (WidgetTester tester) async {
await tester.pumpWidget(
const CupertinoApp(
home: CupertinoNavigationBar(
middle: Text('Title'),
),
),
);
tester.state<NavigatorState>(find.byType(Navigator)).push(CupertinoPageRoute<void>(
builder: (BuildContext context) {
return const CupertinoNavigationBar(
middle: Text('Page 2'),
);
},
));
await tester.pump();
await tester.pump(const Duration(milliseconds: 500));
// Expect the middle of the title to be exactly in the middle of the screen.
expect(tester.getCenter(find.text('Page 2')).dx, 400.0);
});
testWidgets('Opaque background does not add blur effects, non-opaque background adds blur effects', (WidgetTester tester) async {
const CupertinoDynamicColor background = CupertinoDynamicColor.withBrightness(
color: Color(0xFFE5E5E5),
darkColor: Color(0xF3E5E5E5),
);
await tester.pumpWidget(
const CupertinoApp(
theme: CupertinoThemeData(brightness: Brightness.light),
home: CupertinoNavigationBar(
middle: Text('Title'),
backgroundColor: background,
),
),
);
expect(find.byType(BackdropFilter), findsNothing);
expect(find.byType(CupertinoNavigationBar), paints..rect(color: background.color));
await tester.pumpWidget(
const CupertinoApp(
theme: CupertinoThemeData(brightness: Brightness.dark),
home: CupertinoNavigationBar(
middle: Text('Title'),
backgroundColor: background,
),
),
);
expect(find.byType(BackdropFilter), findsOneWidget);
expect(find.byType(CupertinoNavigationBar), paints..rect(color: background.darkColor));
});
testWidgets('Non-opaque background adds blur effects', (WidgetTester tester) async {
await tester.pumpWidget(
const CupertinoApp(
home: CupertinoNavigationBar(
middle: Text('Title'),
),
),
);
expect(find.byType(BackdropFilter), findsOneWidget);
});
testWidgets('Nav bar displays correctly', (WidgetTester tester) async {
final GlobalKey<NavigatorState> navigator = GlobalKey<NavigatorState>();
await tester.pumpWidget(
CupertinoApp(
navigatorKey: navigator,
home: const CupertinoNavigationBar(
middle: Text('Page 1'),
),
),
);
navigator.currentState!.push<void>(CupertinoPageRoute<void>(
builder: (BuildContext context) {
return const CupertinoNavigationBar(
middle: Text('Page 2'),
);
},
));
await tester.pumpAndSettle();
expect(find.byType(CupertinoNavigationBarBackButton), findsOneWidget);
// Pops the page 2
navigator.currentState!.pop();
await tester.pump();
// Needs another pump to trigger the rebuild;
await tester.pump();
// The back button should still persist;
expect(find.byType(CupertinoNavigationBarBackButton), findsOneWidget);
// The app does not crash
expect(tester.takeException(), isNull);
});
testWidgets('Can specify custom padding', (WidgetTester tester) async {
final Key middleBox = GlobalKey();
await tester.pumpWidget(
CupertinoApp(
home: Align(
alignment: Alignment.topCenter,
child: CupertinoNavigationBar(
leading: const CupertinoButton(onPressed: null, child: Text('Cheetah')),
// Let the box take all the vertical space to test vertical padding but let
// the nav bar position it horizontally.
middle: Align(
key: middleBox,
widthFactor: 1.0,
child: const Text('Title'),
),
trailing: const CupertinoButton(onPressed: null, child: Text('Puma')),
padding: const EdgeInsetsDirectional.only(
start: 10.0,
end: 20.0,
top: 3.0,
bottom: 4.0,
),
),
),
),
);
expect(tester.getRect(find.byKey(middleBox)).top, 3.0);
// 44 is the standard height of the nav bar.
expect(
tester.getRect(find.byKey(middleBox)).bottom,
// 44 is the standard height of the nav bar.
44.0 - 4.0,
);
expect(tester.getTopLeft(find.widgetWithText(CupertinoButton, 'Cheetah')).dx, 10.0);
expect(tester.getTopRight(find.widgetWithText(CupertinoButton, 'Puma')).dx, 800.0 - 20.0);
// Title is still exactly centered.
expect(tester.getCenter(find.text('Title')).dx, 400.0);
});
// Assert that two SystemUiOverlayStyle instances have the same values for
// status bar properties and that the first instance has no system navigation
// bar properties set.
void expectSameStatusBarStyle(SystemUiOverlayStyle style, SystemUiOverlayStyle expectedStyle) {
expect(style.statusBarColor, expectedStyle.statusBarColor);
expect(style.statusBarBrightness, expectedStyle.statusBarBrightness);
expect(style.statusBarIconBrightness, expectedStyle.statusBarIconBrightness);
expect(style.systemStatusBarContrastEnforced, expectedStyle.systemStatusBarContrastEnforced);
expect(style.systemNavigationBarColor, isNull);
expect(style.systemNavigationBarContrastEnforced, isNull);
expect(style.systemNavigationBarDividerColor, isNull);
expect(style.systemNavigationBarIconBrightness, isNull);
}
// Regression test for https://github.com/flutter/flutter/issues/119270
testWidgets('System navigation bar properties are not overriden', (WidgetTester tester) async {
await tester.pumpWidget(
const CupertinoApp(
home: CupertinoNavigationBar(
backgroundColor: Color(0xF0F9F9F9),
),
),
);
expectSameStatusBarStyle(SystemChrome.latestStyle!, SystemUiOverlayStyle.dark);
});
testWidgets('Can specify custom brightness', (WidgetTester tester) async {
await tester.pumpWidget(
const CupertinoApp(
home: CupertinoNavigationBar(
backgroundColor: Color(0xF0F9F9F9),
brightness: Brightness.dark,
),
),
);
expectSameStatusBarStyle(SystemChrome.latestStyle!, SystemUiOverlayStyle.light);
await tester.pumpWidget(
const CupertinoApp(
home: CupertinoNavigationBar(
backgroundColor: Color(0xF01D1D1D),
brightness: Brightness.light,
),
),
);
expectSameStatusBarStyle(SystemChrome.latestStyle!, SystemUiOverlayStyle.dark);
await tester.pumpWidget(
const CupertinoApp(
home: CustomScrollView(
slivers: <Widget>[
CupertinoSliverNavigationBar(
largeTitle: Text('Title'),
backgroundColor: Color(0xF0F9F9F9),
brightness: Brightness.dark,
),
],
),
),
);
expectSameStatusBarStyle(SystemChrome.latestStyle!, SystemUiOverlayStyle.light);
await tester.pumpWidget(
const CupertinoApp(
home: CustomScrollView(
slivers: <Widget>[
CupertinoSliverNavigationBar(
largeTitle: Text('Title'),
backgroundColor: Color(0xF01D1D1D),
brightness: Brightness.light,
),
],
),
),
);
expectSameStatusBarStyle(SystemChrome.latestStyle!, SystemUiOverlayStyle.dark);
});
testWidgets('Padding works in RTL', (WidgetTester tester) async {
await tester.pumpWidget(
const CupertinoApp(
home: Directionality(
textDirection: TextDirection.rtl,
child: Align(
alignment: Alignment.topCenter,
child: CupertinoNavigationBar(
leading: CupertinoButton(onPressed: null, child: Text('Cheetah')),
// Let the box take all the vertical space to test vertical padding but let
// the nav bar position it horizontally.
middle: Text('Title'),
trailing: CupertinoButton(onPressed: null, child: Text('Puma')),
padding: EdgeInsetsDirectional.only(
start: 10.0,
end: 20.0,
),
),
),
),
),
);
expect(tester.getTopRight(find.widgetWithText(CupertinoButton, 'Cheetah')).dx, 800.0 - 10.0);
expect(tester.getTopLeft(find.widgetWithText(CupertinoButton, 'Puma')).dx, 20.0);
// Title is still exactly centered.
expect(tester.getCenter(find.text('Title')).dx, 400.0);
});
testWidgets('Nav bar uses theme defaults', (WidgetTester tester) async {
count = 0x000000;
await tester.pumpWidget(
CupertinoApp(
home: CupertinoNavigationBar(
leading: CupertinoButton(
onPressed: () { },
child: _ExpectStyles(color: CupertinoColors.systemBlue.color, index: 0x000001),
),
middle: const _ExpectStyles(color: CupertinoColors.black, index: 0x000100),
trailing: CupertinoButton(
onPressed: () { },
child: _ExpectStyles(color: CupertinoColors.systemBlue.color, index: 0x010000),
),
),
),
);
expect(count, 0x010101);
});
testWidgets('Nav bar respects themes', (WidgetTester tester) async {
count = 0x000000;
await tester.pumpWidget(
CupertinoApp(
theme: const CupertinoThemeData(brightness: Brightness.dark),
home: CupertinoNavigationBar(
leading: CupertinoButton(
onPressed: () { },
child: _ExpectStyles(color: CupertinoColors.systemBlue.darkColor, index: 0x000001),
),
middle: const _ExpectStyles(color: CupertinoColors.white, index: 0x000100),
trailing: CupertinoButton(
onPressed: () { },
child: _ExpectStyles(color: CupertinoColors.systemBlue.darkColor, index: 0x010000),
),
),
),
);
expect(count, 0x010101);
});
testWidgets('Theme active color can be overridden', (WidgetTester tester) async {
count = 0x000000;
await tester.pumpWidget(
CupertinoApp(
theme: const CupertinoThemeData(primaryColor: Color(0xFF001122)),
home: CupertinoNavigationBar(
leading: CupertinoButton(
onPressed: () { },
child: const _ExpectStyles(color: Color(0xFF001122), index: 0x000001),
),
middle: const _ExpectStyles(color: Color(0xFF000000), index: 0x000100),
trailing: CupertinoButton(
onPressed: () { },
child: const _ExpectStyles(color: Color(0xFF001122), index: 0x010000),
),
),
),
);
expect(count, 0x010101);
});
testWidgets('No slivers with no large titles', (WidgetTester tester) async {
await tester.pumpWidget(
const CupertinoApp(
home: CupertinoPageScaffold(
navigationBar: CupertinoNavigationBar(
middle: Text('Title'),
),
child: Center(),
),
),
);
expect(find.byType(SliverPersistentHeader), findsNothing);
});
testWidgets('Media padding is applied to CupertinoSliverNavigationBar', (WidgetTester tester) async {
final ScrollController scrollController = ScrollController();
final Key leadingKey = GlobalKey();
final Key middleKey = GlobalKey();
final Key trailingKey = GlobalKey();
final Key titleKey = GlobalKey();
await tester.pumpWidget(
CupertinoApp(
home: MediaQuery(
data: const MediaQueryData(
padding: EdgeInsets.only(
top: 10.0,
left: 20.0,
bottom: 30.0,
right: 40.0,
),
),
child: CupertinoPageScaffold(
child: CustomScrollView(
controller: scrollController,
slivers: <Widget>[
CupertinoSliverNavigationBar(
leading: Placeholder(key: leadingKey),
middle: Placeholder(key: middleKey),
largeTitle: Text('Large Title', key: titleKey),
trailing: Placeholder(key: trailingKey),
),
SliverToBoxAdapter(
child: Container(
height: 1200.0,
),
),
],
),
),
),
),
);
// Media padding applied to leading (T,L), middle (T), trailing (T, R).
expect(tester.getTopLeft(find.byKey(leadingKey)), const Offset(16.0 + 20.0, 10.0));
expect(tester.getRect(find.byKey(middleKey)).top, 10.0);
expect(tester.getTopRight(find.byKey(trailingKey)), const Offset(800.0 - 16.0 - 40.0, 10.0));
// Top and left padding is applied to large title.
expect(tester.getTopLeft(find.byKey(titleKey)), const Offset(16.0 + 20.0, 54.0 + 10.0));
});
testWidgets('Large title nav bar scrolls', (WidgetTester tester) async {
final ScrollController scrollController = ScrollController();
await tester.pumpWidget(
CupertinoApp(
home: CupertinoPageScaffold(
child: CustomScrollView(
controller: scrollController,
slivers: <Widget>[
const CupertinoSliverNavigationBar(
largeTitle: Text('Title'),
),
SliverToBoxAdapter(
child: Container(
height: 1200.0,
),
),
],
),
),
),
);
expect(scrollController.offset, 0.0);
expect(tester.getTopLeft(find.byType(NavigationToolbar)).dy, 0.0);
expect(tester.getSize(find.byType(NavigationToolbar)).height, 44.0);
expect(find.text('Title'), findsNWidgets(2)); // Though only one is visible.
List<Element> titles = tester.elementList(find.text('Title'))
.toList()
..sort((Element a, Element b) {
final RenderParagraph aParagraph = a.renderObject! as RenderParagraph;
final RenderParagraph bParagraph = b.renderObject! as RenderParagraph;
return aParagraph.text.style!.fontSize!.compareTo(bParagraph.text.style!.fontSize!);
});
Iterable<double> opacities = titles.map<double>((Element element) {
final RenderAnimatedOpacity renderOpacity = element.findAncestorRenderObjectOfType<RenderAnimatedOpacity>()!;
return renderOpacity.opacity.value;
});
expect(opacities, <double> [
0.0, // Initially the smaller font title is invisible.
1.0, // The larger font title is visible.
]);
expect(tester.getTopLeft(find.widgetWithText(ClipRect, 'Title').first).dy, 44.0);
expect(tester.getSize(find.widgetWithText(ClipRect, 'Title').first).height, 52.0);
scrollController.jumpTo(600.0);
await tester.pump(); // Once to trigger the opacity animation.
await tester.pump(const Duration(milliseconds: 300));
titles = tester.elementList(find.text('Title'))
.toList()
..sort((Element a, Element b) {
final RenderParagraph aParagraph = a.renderObject! as RenderParagraph;
final RenderParagraph bParagraph = b.renderObject! as RenderParagraph;
return aParagraph.text.style!.fontSize!.compareTo(bParagraph.text.style!.fontSize!);
});
opacities = titles.map<double>((Element element) {
final RenderAnimatedOpacity renderOpacity = element.findAncestorRenderObjectOfType<RenderAnimatedOpacity>()!;
return renderOpacity.opacity.value;
});
expect(opacities, <double> [
1.0, // Smaller font title now visible
0.0, // Larger font title invisible.
]);
// The persistent toolbar doesn't move or change size.
expect(tester.getTopLeft(find.byType(NavigationToolbar)).dy, 0.0);
expect(tester.getSize(find.byType(NavigationToolbar)).height, 44.0);
expect(tester.getTopLeft(find.widgetWithText(ClipRect, 'Title').first).dy, 44.0);
// The OverflowBox is squished with the text in it.
expect(tester.getSize(find.widgetWithText(ClipRect, 'Title').first).height, 0.0);
});
testWidgets('User specified middle is always visible in sliver', (WidgetTester tester) async {
final ScrollController scrollController = ScrollController();
final Key segmentedControlsKey = UniqueKey();
await tester.pumpWidget(
CupertinoApp(
home: CupertinoPageScaffold(
child: CustomScrollView(
controller: scrollController,
slivers: <Widget>[
CupertinoSliverNavigationBar(
middle: ConstrainedBox(
constraints: const BoxConstraints(maxWidth: 200.0),
child: CupertinoSegmentedControl<int>(
key: segmentedControlsKey,
children: const <int, Widget>{
0: Text('Option A'),
1: Text('Option B'),
},
onValueChanged: (int selected) { },
groupValue: 0,
),
),
largeTitle: const Text('Title'),
),
SliverToBoxAdapter(
child: Container(
height: 1200.0,
),
),
],
),
),
),
);
expect(scrollController.offset, 0.0);
expect(tester.getTopLeft(find.byType(NavigationToolbar)).dy, 0.0);
expect(tester.getSize(find.byType(NavigationToolbar)).height, 44.0);
expect(find.text('Title'), findsOneWidget);
expect(tester.getCenter(find.byKey(segmentedControlsKey)).dx, 400.0);
expect(tester.getTopLeft(find.widgetWithText(ClipRect, 'Title').first).dy, 44.0);
expect(tester.getSize(find.widgetWithText(ClipRect, 'Title').first).height, 52.0);
scrollController.jumpTo(600.0);
await tester.pump(); // Once to trigger the opacity animation.
await tester.pump(const Duration(milliseconds: 300));
expect(tester.getCenter(find.byKey(segmentedControlsKey)).dx, 400.0);
// The large title is invisible now.
expect(
tester.renderObject<RenderAnimatedOpacity>(find.widgetWithText(AnimatedOpacity, 'Title')).opacity.value,
0.0,
);
});
testWidgets('User specified middle is only visible when sliver is collapsed if alwaysShowMiddle is false', (WidgetTester tester) async {
final ScrollController scrollController = ScrollController();
await tester.pumpWidget(
CupertinoApp(
home: CupertinoPageScaffold(
child: CustomScrollView(
controller: scrollController,
slivers: const <Widget>[
CupertinoSliverNavigationBar(
largeTitle: Text('Large'),
middle: Text('Middle'),
alwaysShowMiddle: false,
),
SliverToBoxAdapter(
child: SizedBox(
height: 1200.0,
),
),
],
),
),
),
);
expect(scrollController.offset, 0.0);
expect(find.text('Middle'), findsOneWidget);
// Initially (in expanded state) middle widget is not visible.
RenderAnimatedOpacity middleOpacity = tester.element(find.text('Middle')).findAncestorRenderObjectOfType<RenderAnimatedOpacity>()!;
expect(middleOpacity.opacity.value, 0.0);
scrollController.jumpTo(600.0);
await tester.pumpAndSettle();
// Middle widget is visible when nav bar is collapsed.
middleOpacity = tester.element(find.text('Middle')).findAncestorRenderObjectOfType<RenderAnimatedOpacity>()!;
expect(middleOpacity.opacity.value, 1.0);
scrollController.jumpTo(0.0);
await tester.pumpAndSettle();
// Middle widget is not visible when nav bar is again expanded.
middleOpacity = tester.element(find.text('Middle')).findAncestorRenderObjectOfType<RenderAnimatedOpacity>()!;
expect(middleOpacity.opacity.value, 0.0);
});
testWidgets('Small title can be overridden', (WidgetTester tester) async {
final ScrollController scrollController = ScrollController();
await tester.pumpWidget(
CupertinoApp(
home: CupertinoPageScaffold(
child: CustomScrollView(
controller: scrollController,
slivers: <Widget>[
const CupertinoSliverNavigationBar(
middle: Text('Different title'),
largeTitle: Text('Title'),
),
SliverToBoxAdapter(
child: Container(
height: 1200.0,
),
),
],
),
),
),
);
expect(scrollController.offset, 0.0);
expect(tester.getTopLeft(find.byType(NavigationToolbar)).dy, 0.0);
expect(tester.getSize(find.byType(NavigationToolbar)).height, 44.0);
expect(find.text('Title'), findsOneWidget);
expect(find.text('Different title'), findsOneWidget);
RenderAnimatedOpacity largeTitleOpacity =
tester.element(find.text('Title')).findAncestorRenderObjectOfType<RenderAnimatedOpacity>()!;
// Large title initially visible.
expect(
largeTitleOpacity.opacity.value,
1.0,
);
// Middle widget not even wrapped with RenderOpacity, i.e. is always visible.
expect(
tester.element(find.text('Different title')).findAncestorRenderObjectOfType<RenderOpacity>(),
isNull,
);
expect(tester.getBottomLeft(find.text('Title')).dy, 44.0 + 52.0 - 8.0); // Static part + extension - padding.
scrollController.jumpTo(600.0);
await tester.pump(); // Once to trigger the opacity animation.
await tester.pump(const Duration(milliseconds: 300));
largeTitleOpacity =
tester.element(find.text('Title')).findAncestorRenderObjectOfType<RenderAnimatedOpacity>()!;
// Large title no longer visible.
expect(
largeTitleOpacity.opacity.value,
0.0,
);
// The persistent toolbar doesn't move or change size.
expect(tester.getTopLeft(find.byType(NavigationToolbar)).dy, 0.0);
expect(tester.getSize(find.byType(NavigationToolbar)).height, 44.0);
expect(tester.getBottomLeft(find.text('Title')).dy, 44.0); // Extension gone.
});
testWidgets('Auto back/close button', (WidgetTester tester) async {
await tester.pumpWidget(
const CupertinoApp(
home: CupertinoNavigationBar(
middle: Text('Home page'),
),
),
);
expect(find.byType(CupertinoButton), findsNothing);
tester.state<NavigatorState>(find.byType(Navigator)).push(CupertinoPageRoute<void>(
builder: (BuildContext context) {
return const CupertinoNavigationBar(
middle: Text('Page 2'),
);
},
));
await tester.pump();
await tester.pump(const Duration(milliseconds: 500));
expect(find.byType(CupertinoButton), findsOneWidget);
expect(find.text(String.fromCharCode(CupertinoIcons.back.codePoint)), findsOneWidget);
tester.state<NavigatorState>(find.byType(Navigator)).push(CupertinoPageRoute<void>(
fullscreenDialog: true,
builder: (BuildContext context) {
return const CupertinoNavigationBar(
middle: Text('Dialog page'),
);
},
));
await tester.pump();
await tester.pump(const Duration(milliseconds: 500));
expect(find.widgetWithText(CupertinoButton, 'Close'), findsOneWidget);
// Test popping goes back correctly.
await tester.tap(find.text('Close'));
await tester.pump();
await tester.pump(const Duration(milliseconds: 500));
expect(find.text('Page 2'), findsOneWidget);
await tester.tap(find.text(String.fromCharCode(CupertinoIcons.back.codePoint)));
await tester.pump();
await tester.pump(const Duration(milliseconds: 500));
expect(find.text('Home page'), findsOneWidget);
});
testWidgets('Long back label turns into "back"', (WidgetTester tester) async {
await tester.pumpWidget(
const CupertinoApp(
home: Placeholder(),
),
);
tester.state<NavigatorState>(find.byType(Navigator)).push(
CupertinoPageRoute<void>(
builder: (BuildContext context) {
return const CupertinoPageScaffold(
navigationBar: CupertinoNavigationBar(
previousPageTitle: '012345678901',
),
child: Placeholder(),
);
},
),
);
await tester.pump();
await tester.pump(const Duration(milliseconds: 500));
expect(find.widgetWithText(CupertinoButton, '012345678901'), findsOneWidget);
tester.state<NavigatorState>(find.byType(Navigator)).push(
CupertinoPageRoute<void>(
builder: (BuildContext context) {
return const CupertinoPageScaffold(
navigationBar: CupertinoNavigationBar(
previousPageTitle: '0123456789012',
),
child: Placeholder(),
);
},
),
);
await tester.pump();
await tester.pump(const Duration(milliseconds: 500));
expect(find.widgetWithText(CupertinoButton, 'Back'), findsOneWidget);
});
testWidgets('Border should be displayed by default', (WidgetTester tester) async {
await tester.pumpWidget(
const CupertinoApp(
home: CupertinoNavigationBar(
middle: Text('Title'),
),
),
);
final DecoratedBox decoratedBox = tester.widgetList(find.descendant(
of: find.byType(CupertinoNavigationBar),
matching: find.byType(DecoratedBox),
)).first as DecoratedBox;
expect(decoratedBox.decoration.runtimeType, BoxDecoration);
final BoxDecoration decoration = decoratedBox.decoration as BoxDecoration;
expect(decoration.border, isNotNull);
final BorderSide side = decoration.border!.bottom;
expect(side, isNotNull);
});
testWidgets('Overrides border color', (WidgetTester tester) async {
await tester.pumpWidget(
const CupertinoApp(
home: CupertinoNavigationBar(
middle: Text('Title'),
border: Border(
bottom: BorderSide(
color: Color(0xFFAABBCC),
width: 0.0,
),
),
),
),
);
final DecoratedBox decoratedBox = tester.widgetList(find.descendant(
of: find.byType(CupertinoNavigationBar),
matching: find.byType(DecoratedBox),
)).first as DecoratedBox;
expect(decoratedBox.decoration.runtimeType, BoxDecoration);
final BoxDecoration decoration = decoratedBox.decoration as BoxDecoration;
expect(decoration.border, isNotNull);
final BorderSide side = decoration.border!.bottom;
expect(side, isNotNull);
expect(side.color, const Color(0xFFAABBCC));
});
testWidgets('Border should not be displayed when null', (WidgetTester tester) async {
await tester.pumpWidget(
const CupertinoApp(
home: CupertinoNavigationBar(
middle: Text('Title'),
border: null,
),
),
);
final DecoratedBox decoratedBox = tester.widgetList(find.descendant(
of: find.byType(CupertinoNavigationBar),
matching: find.byType(DecoratedBox),
)).first as DecoratedBox;
expect(decoratedBox.decoration.runtimeType, BoxDecoration);
final BoxDecoration decoration = decoratedBox.decoration as BoxDecoration;
expect(decoration.border, isNull);
});
testWidgets('Border is displayed by default in sliver nav bar', (WidgetTester tester) async {
await tester.pumpWidget(
const CupertinoApp(
home: CupertinoPageScaffold(
child: CustomScrollView(
slivers: <Widget>[
CupertinoSliverNavigationBar(
largeTitle: Text('Large Title'),
),
],
),
),
),
);
final DecoratedBox decoratedBox = tester.widgetList(find.descendant(
of: find.byType(CupertinoSliverNavigationBar),
matching: find.byType(DecoratedBox),
)).first as DecoratedBox;
expect(decoratedBox.decoration.runtimeType, BoxDecoration);
final BoxDecoration decoration = decoratedBox.decoration as BoxDecoration;
expect(decoration.border, isNotNull);
final BorderSide bottom = decoration.border!.bottom;
expect(bottom, isNotNull);
});
testWidgets('Border is not displayed when null in sliver nav bar', (WidgetTester tester) async {
await tester.pumpWidget(
const CupertinoApp(
home: CupertinoPageScaffold(
child: CustomScrollView(
slivers: <Widget>[
CupertinoSliverNavigationBar(
largeTitle: Text('Large Title'),
border: null,
),
],
),
),
),
);
final DecoratedBox decoratedBox = tester.widgetList(find.descendant(
of: find.byType(CupertinoSliverNavigationBar),
matching: find.byType(DecoratedBox),
)).first as DecoratedBox;
expect(decoratedBox.decoration.runtimeType, BoxDecoration);
final BoxDecoration decoration = decoratedBox.decoration as BoxDecoration;
expect(decoration.border, isNull);
});
testWidgets('CupertinoSliverNavigationBar has semantics', (WidgetTester tester) async {
final SemanticsTester semantics = SemanticsTester(tester);
await tester.pumpWidget(const CupertinoApp(
home: CupertinoPageScaffold(
child: CustomScrollView(
slivers: <Widget>[
CupertinoSliverNavigationBar(
largeTitle: Text('Large Title'),
border: null,
),
],
),
),
));
expect(semantics.nodesWith(
label: 'Large Title',
flags: <SemanticsFlag>[SemanticsFlag.isHeader],
textDirection: TextDirection.ltr,
), hasLength(1));
semantics.dispose();
});
testWidgets('CupertinoNavigationBar has semantics', (WidgetTester tester) async {
final SemanticsTester semantics = SemanticsTester(tester);
await tester.pumpWidget(CupertinoApp(
home: CupertinoPageScaffold(
navigationBar: const CupertinoNavigationBar(
middle: Text('Fixed Title'),
),
child: Container(),
),
));
expect(semantics.nodesWith(
label: 'Fixed Title',
flags: <SemanticsFlag>[SemanticsFlag.isHeader],
textDirection: TextDirection.ltr,
), hasLength(1));
semantics.dispose();
});
testWidgets('Border can be overridden in sliver nav bar', (WidgetTester tester) async {
await tester.pumpWidget(
const CupertinoApp(
home: CupertinoPageScaffold(
child: CustomScrollView(
slivers: <Widget>[
CupertinoSliverNavigationBar(
largeTitle: Text('Large Title'),
border: Border(
bottom: BorderSide(
color: Color(0xFFAABBCC),
width: 0.0,
),
),
),
],
),
),
),
);
final DecoratedBox decoratedBox = tester.widgetList(find.descendant(
of: find.byType(CupertinoSliverNavigationBar),
matching: find.byType(DecoratedBox),
)).first as DecoratedBox;
expect(decoratedBox.decoration.runtimeType, BoxDecoration);
final BoxDecoration decoration = decoratedBox.decoration as BoxDecoration;
expect(decoration.border, isNotNull);
final BorderSide top = decoration.border!.top;
expect(top, isNotNull);
expect(top, BorderSide.none);
final BorderSide bottom = decoration.border!.bottom;
expect(bottom, isNotNull);
expect(bottom.color, const Color(0xFFAABBCC));
});
testWidgets(
'Standard title golden',
(WidgetTester tester) async {
await tester.pumpWidget(
const CupertinoApp(
home: RepaintBoundary(
child: CupertinoPageScaffold(
navigationBar: CupertinoNavigationBar(
middle: Text('Bling bling'),
),
child: Center(),
),
),
),
);
await expectLater(
find.byType(RepaintBoundary).last,
matchesGoldenFile('nav_bar_test.standard_title.png'),
);
},
);
testWidgets(
'Large title golden',
(WidgetTester tester) async {
await tester.pumpWidget(
CupertinoApp(
home: RepaintBoundary(
child: CupertinoPageScaffold(
child: CustomScrollView(
slivers: <Widget>[
const CupertinoSliverNavigationBar(
largeTitle: Text('Bling bling'),
),
SliverToBoxAdapter(
child: Container(
height: 1200.0,