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cd6c4da3c6
RenderView has to be a singleton for sanity during tests, otherwise they all end up in the dirty lists and we end up pumping all of them each frame.
43 lines
1.7 KiB
Dart
43 lines
1.7 KiB
Dart
import 'package:sky/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('RenderPositionedBox expands', () {
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RenderConstrainedBox sizer = new RenderConstrainedBox(
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additionalConstraints: new BoxConstraints.tight(new Size(100.0, 100.0)),
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child: new RenderDecoratedBox(decoration: new BoxDecoration())
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);
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RenderPositionedBox positioner = new RenderPositionedBox(child: sizer);
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layout(positioner, constraints: new BoxConstraints.loose(new Size(200.0, 200.0)));
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expect(positioner.size.width, equals(200.0), reason: "positioner width");
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expect(positioner.size.height, equals(200.0), reason: "positioner height");
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});
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test('RenderPositionedBox shrink wraps', () {
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RenderConstrainedBox sizer = new RenderConstrainedBox(
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additionalConstraints: new BoxConstraints.tight(new Size(100.0, 100.0)),
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child: new RenderDecoratedBox(decoration: new BoxDecoration())
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);
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RenderPositionedBox positioner = new RenderPositionedBox(child: sizer, shrinkWrap: ShrinkWrap.width);
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layout(positioner, constraints: new BoxConstraints.loose(new Size(200.0, 200.0)));
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expect(positioner.size.width, equals(100.0), reason: "positioner width");
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expect(positioner.size.height, equals(200.0), reason: "positioner height");
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positioner.shrinkWrap = ShrinkWrap.height;
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pumpFrame();
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expect(positioner.size.width, equals(200.0), reason: "positioner width");
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expect(positioner.size.height, equals(100.0), reason: "positioner height");
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positioner.shrinkWrap = ShrinkWrap.both;
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pumpFrame();
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expect(positioner.size.width, equals(100.0), reason: "positioner width");
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expect(positioner.size.height, equals(100.0), reason: "positioner height");
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});
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}
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