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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'package:test/test.dart';
import 'rendering_tester.dart';
void main() {
test("should size to render view", () {
RenderBox root = new RenderDecoratedBox(
decoration: new BoxDecoration(
backgroundColor: const Color(0xFF00FF00),
gradient: new RadialGradient(
center: FractionalOffset.topLeft, radius: 1.8,
colors: <Color>[Colors.yellow[500], Colors.blue[500]]),
boxShadow: elevationToShadow[3])
);
layout(root);
expect(root.size.width, equals(800.0));
expect(root.size.height, equals(600.0));
});
test('Flex and padding', () {
RenderBox size = new RenderConstrainedBox(
additionalConstraints: new BoxConstraints().tighten(height: 100.0)
);
RenderBox inner = new RenderDecoratedBox(
decoration: new BoxDecoration(
backgroundColor: const Color(0xFF00FF00)
),
child: size
);
RenderBox padding = new RenderPadding(
padding: new EdgeInsets.all(50.0),
child: inner
);
RenderBox flex = new RenderFlex(
children: <RenderBox>[padding],
direction: FlexDirection.vertical,
crossAxisAlignment: CrossAxisAlignment.stretch
);
RenderBox outer = new RenderDecoratedBox(
decoration: new BoxDecoration(
backgroundColor: const Color(0xFF0000FF)
),
child: flex
);
layout(outer);
expect(size.size.width, equals(700.0));
expect(size.size.height, equals(100.0));
expect(inner.size.width, equals(700.0));
expect(inner.size.height, equals(100.0));
expect(padding.size.width, equals(800.0));
expect(padding.size.height, equals(200.0));
expect(flex.size.width, equals(800.0));
expect(flex.size.height, equals(600.0));
expect(outer.size.width, equals(800.0));
expect(outer.size.height, equals(600.0));
});
test("should not have a 0 sized colored Box", () {
RenderBox coloredBox = new RenderDecoratedBox(
decoration: new BoxDecoration()
);
RenderBox paddingBox = new RenderPadding(padding: const EdgeInsets.all(10.0),
child: coloredBox);
RenderBox root = new RenderDecoratedBox(
decoration: new BoxDecoration(),
child: paddingBox
);
layout(root);
expect(coloredBox.size.width, equals(780.0));
expect(coloredBox.size.height, equals(580.0));
});
test("reparenting should clear position", () {
RenderDecoratedBox coloredBox = new RenderDecoratedBox(
decoration: new BoxDecoration());
RenderPadding paddedBox = new RenderPadding(
child: coloredBox, padding: const EdgeInsets.all(10.0));
layout(paddedBox);
BoxParentData parentData = coloredBox.parentData;
expect(parentData.offset.dx, isNot(equals(0.0)));
paddedBox.child = null;
RenderConstrainedBox constraintedBox = new RenderConstrainedBox(
child: coloredBox, additionalConstraints: const BoxConstraints());
layout(constraintedBox);
parentData = coloredBox.parentData;
expect(parentData.offset.dx, equals(0.0));
});
}