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85 lines
3.0 KiB
Dart
85 lines
3.0 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/safe_area/safe_area.0.dart' as example;
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import 'package:flutter_test/flutter_test.dart';
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example.InsetsState get insetsState => example.InsetsState.instance;
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void main() {
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testWidgets('SafeArea widget count', (WidgetTester tester) async {
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await tester.pumpWidget(const example.Insets());
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// 1 SafeArea and 2 ListTile widgets.
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expect(find.byType(SafeArea), findsNWidgets(3));
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insetsState.toggle(example.Toggle.appBar, true);
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await tester.pump();
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expect(find.byType(SafeArea), findsNWidgets(4));
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});
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testWidgets('ListTile removes side padding from its content', (WidgetTester tester) async {
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await tester.pumpWidget(const example.Insets());
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late BuildContext context;
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late EdgeInsets padding;
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final Finder findBody = find.byType(example.SafeAreaExample);
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final Finder findListTile = find.text(example.Toggle.appBar.label).first;
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context = tester.element(findBody);
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padding = MediaQuery.paddingOf(context);
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expect(padding.top, greaterThan(0));
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expect(padding.bottom, greaterThan(0));
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expect(padding.left, greaterThan(0));
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expect(padding.right, greaterThan(0));
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context = tester.element(findListTile);
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padding = MediaQuery.paddingOf(context);
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expect(padding.top, greaterThan(0));
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expect(padding.bottom, greaterThan(0));
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expect(padding.left, 0);
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expect(padding.right, 0);
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});
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testWidgets('AppBar removes top padding of Scaffold body', (WidgetTester tester) async {
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await tester.pumpWidget(const example.Insets());
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final BuildContext context = tester.element(find.text('no safe area'));
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// Double-check that side & bottom padding are unchanged.
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void verifySidesAndBottom() {
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final EdgeInsets padding = MediaQuery.paddingOf(context);
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expect(padding.left, example.Inset.sides.of(context));
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expect(padding.right, example.Inset.sides.of(context));
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expect(padding.bottom, example.Inset.bottom.of(context));
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}
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final double topInset = example.Inset.top.of(context);
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expect(topInset, greaterThan(0));
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expect(MediaQuery.paddingOf(context).top, topInset);
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verifySidesAndBottom();
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insetsState.toggle(example.Toggle.appBar, true);
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await tester.pump();
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expect(example.Inset.top.of(context), greaterThan(0));
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expect(MediaQuery.paddingOf(context).top, 0);
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verifySidesAndBottom();
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});
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testWidgets('SafeArea removes all padding', (WidgetTester tester) async {
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await tester.pumpWidget(const example.Insets());
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BuildContext context = tester.element(find.text('no safe area'));
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expect(MediaQuery.paddingOf(context), insetsState.insets);
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insetsState.toggle(example.Toggle.safeArea, true);
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await tester.pump();
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context = tester.element(find.text('safe area!'));
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expect(MediaQuery.paddingOf(context), EdgeInsets.zero);
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});
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}
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