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86 lines
3.1 KiB
Dart
86 lines
3.1 KiB
Dart
// Copyright 2015 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_test/flutter_test.dart';
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import 'package:flutter/rendering.dart';
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import 'package:flutter/widgets.dart';
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import 'package:test/test.dart';
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class TestMultiChildLayoutDelegate extends MultiChildLayoutDelegate {
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BoxConstraints getSizeConstraints;
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Size getSize(BoxConstraints constraints) {
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getSizeConstraints = constraints;
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return new Size(200.0, 300.0);
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}
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Size performLayoutSize;
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BoxConstraints performLayoutConstraints;
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Size performLayoutSize0;
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Size performLayoutSize1;
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bool performLayoutIsChild;
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void performLayout(Size size, BoxConstraints constraints) {
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expect(() {
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performLayoutSize = size;
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performLayoutConstraints = constraints;
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performLayoutSize0 = layoutChild(0, constraints);
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performLayoutSize1 = layoutChild(1, constraints);
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performLayoutIsChild = isChild('fred');
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}, returnsNormally);
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}
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}
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void main() {
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test('Control test for CustomMultiChildLayout', () {
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testWidgets((WidgetTester tester) {
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TestMultiChildLayoutDelegate delegate = new TestMultiChildLayoutDelegate();
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tester.pumpWidget(new Center(
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child: new CustomMultiChildLayout([
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new LayoutId(id: 0, child: new Container(width: 150.0, height: 100.0)),
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new LayoutId(id: 1, child: new Container(width: 100.0, height: 200.0)),
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],
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delegate: delegate
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)
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));
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expect(delegate.getSizeConstraints.minWidth, 0.0);
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expect(delegate.getSizeConstraints.maxWidth, 800.0);
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expect(delegate.getSizeConstraints.minHeight, 0.0);
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expect(delegate.getSizeConstraints.maxHeight, 600.0);
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expect(delegate.performLayoutSize.width, 200.0);
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expect(delegate.performLayoutSize.height, 300.0);
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expect(delegate.performLayoutConstraints.minWidth, 0.0);
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expect(delegate.performLayoutConstraints.maxWidth, 800.0);
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expect(delegate.performLayoutConstraints.minHeight, 0.0);
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expect(delegate.performLayoutConstraints.maxHeight, 600.0);
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expect(delegate.performLayoutSize0.width, 150.0);
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expect(delegate.performLayoutSize0.height, 100.0);
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expect(delegate.performLayoutSize1.width, 100.0);
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expect(delegate.performLayoutSize1.height, 200.0);
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expect(delegate.performLayoutIsChild, false);
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});
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});
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test('Nested CustomMultiChildLayouts', () {
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testWidgets((WidgetTester tester) {
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TestMultiChildLayoutDelegate delegate = new TestMultiChildLayoutDelegate();
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tester.pumpWidget(new Center(
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child: new CustomMultiChildLayout([
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new LayoutId(
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id: 0,
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child: new CustomMultiChildLayout([
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new LayoutId(id: 0, child: new Container(width: 150.0, height: 100.0)),
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new LayoutId(id: 1, child: new Container(width: 100.0, height: 200.0)),
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], delegate: delegate)
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),
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new LayoutId(id: 1, child: new Container(width: 100.0, height: 200.0)),
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], delegate: delegate)
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));
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});
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});
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}
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