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derdilladerdilla
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test sliver fill remaining examples (#148041)
Par of #130459. Adds tests all `SliverFillRemaining` examples.
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+149
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‎dev/bots/check_code_samples.dart‎

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@@ -433,10 +433,6 @@ final Set<String> _knownMissingTests = <String>{
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'examples/api/test/widgets/scrollbar/raw_scrollbar.desktop.0_test.dart',
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'examples/api/test/widgets/scrollbar/raw_scrollbar.shape.0_test.dart',
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'examples/api/test/widgets/scrollbar/raw_scrollbar.0_test.dart',
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'examples/api/test/widgets/sliver_fill/sliver_fill_remaining.2_test.dart',
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'examples/api/test/widgets/sliver_fill/sliver_fill_remaining.1_test.dart',
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'examples/api/test/widgets/sliver_fill/sliver_fill_remaining.3_test.dart',
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'examples/api/test/widgets/sliver_fill/sliver_fill_remaining.0_test.dart',
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'examples/api/test/widgets/interactive_viewer/interactive_viewer.constrained.0_test.dart',
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'examples/api/test/widgets/interactive_viewer/interactive_viewer.transformation_controller.0_test.dart',
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'examples/api/test/widgets/interactive_viewer/interactive_viewer.0_test.dart',

‎examples/api/test/widgets/sliver_fill/sliver_fill_remaining.0_test.dart‎

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// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/material.dart';
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import 'package:flutter_api_samples/widgets/sliver_fill/sliver_fill_remaining.0.dart' as example;
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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testWidgets('shows how SliverFillRemaining takes up remaining space', (WidgetTester tester) async {
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await tester.pumpWidget(const example.SliverFillRemainingExampleApp());
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expect(find.text('SliverFillRemaining Sample'), findsOneWidget);
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expect(find.byType(CustomScrollView), findsOneWidget);
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expect(find.descendant(
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of: find.byType(SliverToBoxAdapter),
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matching: find.byType(Container)), findsOneWidget);
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final Container upperContainer = tester.widget(find.descendant(
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of: find.byType(SliverToBoxAdapter),
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matching: find.byType(Container)));
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expect(upperContainer.color, Colors.amber[300]);
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expect(find.byType(SliverFillRemaining), findsOneWidget);
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expect(find.descendant(
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of: find.byType(SliverFillRemaining),
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matching: find.byType(Container)), findsOneWidget);
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expect(find.byIcon(Icons.sentiment_very_satisfied), findsOneWidget);
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final Icon lowerIcon = tester.widget(find.descendant(
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of: find.byType(SliverFillRemaining),
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matching: find.byType(Icon)));
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expect(lowerIcon.color, Colors.blue[900]);
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final double total = tester.getSize(find.byType(CustomScrollView)).height;
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final double upperHeight = tester.getSize(find.descendant(
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of: find.byType(SliverToBoxAdapter),
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matching: find.byType(Container))).height;
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final double lowerHeight = tester.getSize(find.descendant(
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of: find.byType(SliverFillRemaining),
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matching: find.byType(Icon))).height;
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expect(upperHeight + lowerHeight, equals(total));
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});
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}

‎examples/api/test/widgets/sliver_fill/sliver_fill_remaining.1_test.dart‎

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// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/material.dart';
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import 'package:flutter_api_samples/widgets/sliver_fill/sliver_fill_remaining.1.dart' as example;
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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testWidgets('Shows all elements', (WidgetTester tester) async {
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await tester.pumpWidget(const example.SliverFillRemainingExampleApp());
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expect(find.text('SliverFillRemaining Sample'), findsOneWidget);
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expect(find.byType(CustomScrollView), findsOneWidget);
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expect(find.byWidgetPredicate((Widget widget) => (widget is Container)
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&& widget.color == Colors.amber[200]),
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findsNWidgets(2));
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expect(find.byWidgetPredicate((Widget widget) => (widget is Container)
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&& widget.color == Colors.blue[200]),
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findsOneWidget);
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expect(find.byWidgetPredicate((Widget widget) => (widget is Container)
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&& widget.color == Colors.orange[300]),
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findsOneWidget);
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expect(find.byType(SliverFixedExtentList), findsOneWidget);
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expect(find.byType(SliverFillRemaining), findsOneWidget);
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expect(find.byType(FlutterLogo), findsOneWidget);
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});
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testWidgets('Fills up all available space', (WidgetTester tester) async {
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await tester.pumpWidget(const example.SliverFillRemainingExampleApp());
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final double listSpace = tester.getSize(find.byType(CustomScrollView)).height;
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double contentHeight = 0.0;
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for (final Widget widget in tester.widgetList(find.byWidgetPredicate(
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(Widget widget) =>
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(widget is Container)
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&& <Color>[Colors.orange[300]!, Colors.blue[200]!, Colors.amber[200]!]
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.contains(widget.color)))
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) {
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contentHeight += tester.getSize(find.byWidget(widget)).height;
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}
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expectLater(contentHeight, equals(listSpace));
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});
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}

‎examples/api/test/widgets/sliver_fill/sliver_fill_remaining.2_test.dart‎

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// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/material.dart';
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import 'package:flutter_api_samples/widgets/sliver_fill/sliver_fill_remaining.2.dart' as example;
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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testWidgets('Shows all elements', (WidgetTester tester) async {
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await tester.pumpWidget(const example.SliverFillRemainingExampleApp());
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expect(find.text('SliverFillRemaining Sample'), findsOneWidget);
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expect(find.byType(CustomScrollView), findsOneWidget);
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expect(find.byType(SliverFixedExtentList), findsOneWidget);
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expect(find.byWidgetPredicate((Widget widget) => (widget is Container)
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&& widget.color == Colors.indigo[200],
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skipOffstage: false,
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), findsNWidgets(3));
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expect(find.byWidgetPredicate((Widget widget) => (widget is Container)
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&& widget.color == Colors.orange[200]
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), findsNWidgets(2));
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expect(find.byType(Container, skipOffstage: false,), findsNWidgets(5));
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expect(find.byType(SliverFillRemaining), findsNothing);
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await tester.scrollUntilVisible(find.byType(SliverFillRemaining), 20);
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expect(find.byType(SliverFillRemaining), findsOneWidget);
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expect(find.byIcon(Icons.pan_tool), findsOneWidget);
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expect(tester.widget<Icon>(find.byIcon(Icons.pan_tool)).color, Colors.blueGrey);
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});
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}

‎examples/api/test/widgets/sliver_fill/sliver_fill_remaining.3_test.dart‎

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// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/material.dart';
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import 'package:flutter_api_samples/widgets/sliver_fill/sliver_fill_remaining.3.dart' as example;
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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testWidgets('Shows all elements', (WidgetTester tester) async {
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await tester.pumpWidget(const example.SliverFillRemainingExampleApp());
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expect(find.text('SliverFillRemaining Sample'), findsOneWidget);
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expect(find.byType(ElevatedButton), findsOneWidget);
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expect(find.text('Bottom Pinned Button!'), findsOneWidget);
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expect(find.byType(CustomScrollView), findsOneWidget);
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final CustomScrollView scroll = tester.widget(find.byType(CustomScrollView));
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expect(scroll.physics, isA<BouncingScrollPhysics>().
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having((BouncingScrollPhysics bsp) => bsp.parent, 'parent', isA<AlwaysScrollableScrollPhysics>()));
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expect(find.byWidgetPredicate((Widget widget) => (widget is Container)
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&& widget.color == Colors.tealAccent[700],
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), findsOneWidget);
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expect(find.byWidgetPredicate((Widget widget) => (widget is Container)
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&& widget.color == Colors.teal[100]
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), findsOneWidget);
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expect(find.byType(Container), findsNWidgets(2));
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expect(find.byType(SliverFillRemaining), findsOneWidget);
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final SliverFillRemaining fill = tester.widget(find.byType(SliverFillRemaining));
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expect(fill.hasScrollBody, false);
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expect(fill.fillOverscroll, true);
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});
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}

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