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75 lines
2.8 KiB
Dart
75 lines
2.8 KiB
Dart
// Copyright 2018 The Chromium 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_web_test/flutter_web_test.dart';
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import 'package:flutter_web/widgets.dart';
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void main() {
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testWidgets('Spacer takes up space.', (WidgetTester tester) async {
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await tester.pumpWidget(Column(
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children: const <Widget>[
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SizedBox(width: 10.0, height: 10.0),
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Spacer(),
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SizedBox(width: 10.0, height: 10.0),
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],
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));
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final Rect spacerRect = tester.getRect(find.byType(Spacer));
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expect(spacerRect.size, const Size(0.0, 580.0));
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expect(spacerRect.topLeft, const Offset(400.0, 10.0));
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});
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testWidgets('Spacer takes up space proportional to flex.',
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(WidgetTester tester) async {
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const Spacer spacer1 = Spacer();
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const Spacer spacer2 = Spacer(flex: 1);
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const Spacer spacer3 = Spacer(flex: 2);
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const Spacer spacer4 = Spacer(flex: 4);
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await tester.pumpWidget(Row(
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textDirection: TextDirection.rtl,
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children: const <Widget>[
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SizedBox(width: 10.0, height: 10.0),
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spacer1,
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SizedBox(width: 10.0, height: 10.0),
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spacer2,
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SizedBox(width: 10.0, height: 10.0),
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spacer3,
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SizedBox(width: 10.0, height: 10.0),
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spacer4,
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SizedBox(width: 10.0, height: 10.0),
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],
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));
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final Rect spacer1Rect = tester.getRect(find.byType(Spacer).at(0));
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final Rect spacer2Rect = tester.getRect(find.byType(Spacer).at(1));
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final Rect spacer3Rect = tester.getRect(find.byType(Spacer).at(2));
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final Rect spacer4Rect = tester.getRect(find.byType(Spacer).at(3));
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expect(spacer1Rect.size.height, 0.0);
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expect(spacer1Rect.size.width, closeTo(93.8, 0.1));
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expect(spacer1Rect.left, closeTo(696.3, 0.1));
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expect(spacer2Rect.size.width, closeTo(93.8, 0.1));
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expect(spacer2Rect.left, closeTo(592.5, 0.1));
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expect(spacer3Rect.size.width, spacer2Rect.size.width * 2.0);
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expect(spacer3Rect.left, closeTo(395.0, 0.1));
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expect(spacer4Rect.size.width, spacer3Rect.size.width * 2.0);
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expect(spacer4Rect.left, closeTo(10.0, 0.1));
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});
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testWidgets('Spacer takes up space.', (WidgetTester tester) async {
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await tester.pumpWidget(UnconstrainedBox(
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constrainedAxis: Axis.vertical,
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child: Column(
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children: const <Widget>[
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SizedBox(width: 20.0, height: 10.0),
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Spacer(),
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SizedBox(width: 10.0, height: 10.0),
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],
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),
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));
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final Rect spacerRect = tester.getRect(find.byType(Spacer));
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final Rect flexRect = tester.getRect(find.byType(Column));
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expect(spacerRect.size, const Size(0.0, 580.0));
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expect(spacerRect.topLeft, const Offset(400.0, 10.0));
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expect(flexRect, Rect.fromLTWH(390.0, 0.0, 20.0, 600.0));
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});
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}
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