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75 lines
2.6 KiB
Dart
75 lines
2.6 KiB
Dart
import 'package:flutter/rendering.dart';
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import 'package:test/test.dart';
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import 'rendering_tester.dart';
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void main() {
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test('Overconstrained flex', () {
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RenderDecoratedBox box = new RenderDecoratedBox(decoration: new BoxDecoration());
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RenderFlex flex = new RenderFlex(children: [ box ]);
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layout(flex, constraints: const BoxConstraints(
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minWidth: 200.0, maxWidth: 100.0, minHeight: 200.0, maxHeight: 100.0)
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);
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expect(flex.size.width, equals(200.0), reason: "flex width");
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expect(flex.size.height, equals(200.0), reason: "flex height");
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});
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test('Defaults', () {
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RenderFlex flex = new RenderFlex();
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expect(flex.alignItems, equals(FlexAlignItems.center));
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expect(flex.direction, equals(FlexDirection.horizontal));
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});
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test('Parent data', () {
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RenderDecoratedBox box1 = new RenderDecoratedBox(decoration: new BoxDecoration());
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RenderDecoratedBox box2 = new RenderDecoratedBox(decoration: new BoxDecoration());
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RenderFlex flex = new RenderFlex(children: [ box1, box2 ]);
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layout(flex, constraints: const BoxConstraints(
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minWidth: 0.0, maxWidth: 100.0, minHeight: 0.0, maxHeight: 100.0)
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);
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expect(box1.size.width, equals(0.0));
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expect(box1.size.height, equals(0.0));
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expect(box2.size.width, equals(0.0));
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expect(box2.size.height, equals(0.0));
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box2.parentData.flex = 1;
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flex.markNeedsLayout();
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pumpFrame();
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expect(box1.size.width, equals(0.0));
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expect(box1.size.height, equals(0.0));
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expect(box2.size.width, equals(100.0));
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expect(box2.size.height, equals(0.0));
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});
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test('Stretch', () {
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RenderDecoratedBox box1 = new RenderDecoratedBox(decoration: new BoxDecoration());
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RenderDecoratedBox box2 = new RenderDecoratedBox(decoration: new BoxDecoration());
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RenderFlex flex = new RenderFlex();
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flex.setupParentData(box2);
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box2.parentData.flex = 2;
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flex.addAll([box1, box2]);
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layout(flex, constraints: const BoxConstraints(
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minWidth: 0.0, maxWidth: 100.0, minHeight: 0.0, maxHeight: 100.0)
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);
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expect(box1.size.width, equals(0.0));
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expect(box1.size.height, equals(0.0));
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expect(box2.size.width, equals(100.0));
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expect(box2.size.height, equals(0.0));
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flex.alignItems = FlexAlignItems.stretch;
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pumpFrame();
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expect(box1.size.width, equals(0.0));
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expect(box1.size.height, equals(100.0));
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expect(box2.size.width, equals(100.0));
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expect(box2.size.height, equals(100.0));
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flex.direction = FlexDirection.vertical;
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pumpFrame();
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expect(box1.size.width, equals(100.0));
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expect(box1.size.height, equals(0.0));
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expect(box2.size.width, equals(100.0));
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expect(box2.size.height, equals(100.0));
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});
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}
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