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3b702448fd
If the size is empty, then _updatePaintData will produce an invalid transform that yields a NaN canvas bounds rectangle Fixes https://github.com/flutter/flutter/issues/7431
33 lines
923 B
Dart
33 lines
923 B
Dart
// Copyright 2017 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/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('RenderFittedBox paint', () {
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bool painted;
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RenderFittedBox makeFittedBox() {
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return new RenderFittedBox(
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child: new RenderCustomPaint(
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painter: new TestCallbackPainter(
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onPaint: () { painted = true; }
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),
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),
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);
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}
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painted = false;
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layout(makeFittedBox(), phase: EnginePhase.paint);
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expect(painted, equals(true));
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// The RenderFittedBox should not paint if it is empty.
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painted = false;
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layout(makeFittedBox(), constraints: new BoxConstraints.tight(Size.zero), phase: EnginePhase.paint);
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expect(painted, equals(false));
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});
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}
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