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082560313b
* Added an example for IndexedStack * Added tests for the IndexedStack example * Fixed type issue for onSubmitted callback functions * Fixed documentation and moved files to their appropriate places * Fixed documentation and moved files to their appropriate places * Moved test files to their appropriate places * Moved test files to their appropriate places * Fixed file path in documentation * Remove trailing space * Formatting changes * Remove extra line * Further formatting changes * Further formatting changes * fix comma and inline Co-authored-by: Greg Spencer <gspencergoog@users.noreply.github.com> * Formatting * indentation and formatting * Formatting * Formatting * Formatting * Removed duplicate chevron * better wording on documentation Co-authored-by: Tong Mu <dkwingsmt@users.noreply.github.com> * Added testing for state preservation Co-authored-by: Greg Spencer <gspencergoog@users.noreply.github.com> Co-authored-by: Tong Mu <dkwingsmt@users.noreply.github.com>
94 lines
4.0 KiB
Dart
94 lines
4.0 KiB
Dart
// 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/basic/indexed_stack.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('has correct forward rendering mechanism', (WidgetTester tester) async {
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await tester.pumpWidget(const example.MyApp());
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final Finder gesture2 = find.byKey(const Key('gesture2'));
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final Element containerFinder = find.byKey(const Key('Dash')).evaluate().first;
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expect(containerFinder.renderObject!.debugNeedsPaint, false);
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final Element containerFinder1 = find.byKey(const Key('John')).evaluate().first;
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expect(containerFinder1.renderObject!.debugNeedsPaint, true);
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final Element containerFinder2 = find.byKey(const Key('Mary')).evaluate().first;
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expect(containerFinder2.renderObject!.debugNeedsPaint, true);
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await tester.tap(gesture2);
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await tester.pump();
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expect(containerFinder.renderObject!.debugNeedsPaint, false);
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expect(containerFinder1.renderObject!.debugNeedsPaint, false);
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expect(containerFinder2.renderObject!.debugNeedsPaint, true);
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await tester.tap(gesture2);
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await tester.pump();
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expect(containerFinder.renderObject!.debugNeedsPaint, false);
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expect(containerFinder1.renderObject!.debugNeedsPaint, false);
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expect(containerFinder2.renderObject!.debugNeedsPaint, false);
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});
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testWidgets('has correct backward rendering mechanism', (WidgetTester tester) async {
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await tester.pumpWidget(const example.MyApp());
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final Finder gesture1 = find.byKey(const Key('gesture1'));
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final Element containerFinder = find.byKey(const Key('Dash')).evaluate().first;
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final Element containerFinder1 = find.byKey(const Key('John')).evaluate().first;
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final Element containerFinder2 = find.byKey(const Key('Mary')).evaluate().first;
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await tester.tap(gesture1);
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await tester.pump();
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expect(containerFinder.renderObject!.debugNeedsPaint, false);
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expect(containerFinder1.renderObject!.debugNeedsPaint, true);
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expect(containerFinder2.renderObject!.debugNeedsPaint, false);
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await tester.tap(gesture1);
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await tester.pump();
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expect(containerFinder.renderObject!.debugNeedsPaint, false);
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expect(containerFinder1.renderObject!.debugNeedsPaint, false);
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expect(containerFinder2.renderObject!.debugNeedsPaint, false);
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});
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testWidgets('has correct element addition handling', (WidgetTester tester) async {
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await tester.pumpWidget(const example.MyApp());
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expect(find.byType(example.PersonTracker), findsNWidgets(3));
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final Finder textField = find.byType(TextField);
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await tester.enterText(textField, 'hello');
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await tester.testTextInput.receiveAction(TextInputAction.done);
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await tester.pump();
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expect(find.byType(example.PersonTracker), findsNWidgets(4));
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await tester.enterText(textField, 'hello1');
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await tester.testTextInput.receiveAction(TextInputAction.done);
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await tester.pump();
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expect(find.byType(example.PersonTracker), findsNWidgets(5));
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});
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testWidgets('has state preservation', (WidgetTester tester) async {
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await tester.pumpWidget(const example.MyApp());
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final Finder gesture1 = find.byKey(const Key('gesture1'));
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final Finder gesture2 = find.byKey(const Key('gesture2'));
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final Finder containerFinder = find.byKey(const Key('Dash'));
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final Finder incrementFinder = find.byKey(const Key('incrementDash'));
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Finder counterFinder(int score) {
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return find.descendant(of: containerFinder, matching: find.text('Score: $score'));
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}
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expect(counterFinder(0), findsOneWidget);
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await tester.tap(incrementFinder);
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await tester.pump();
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expect(counterFinder(1), findsOneWidget);
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await tester.tap(gesture2);
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await tester.pump();
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await tester.tap(gesture1);
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await tester.pump();
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expect(counterFinder(1), findsOneWidget);
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expect(counterFinder(0), findsNothing);
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});
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}
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