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2b1f9925e4
Dart lints added: * Avoid optional new * Avoid optional const * Prefer single quotes * Prefer default assignment `=`
84 lines
4.3 KiB
Dart
84 lines
4.3 KiB
Dart
// Copyright 2013 The Flutter 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 'dart:typed_data';
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import 'dart:ui';
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import 'package:test/test.dart';
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typedef CanvasCallback = void Function(Canvas canvas);
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void testCanvas(CanvasCallback callback) {
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try {
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callback(Canvas(PictureRecorder(), const Rect.fromLTRB(0.0, 0.0, 0.0, 0.0)));
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} catch (error) { } // ignore: empty_catches
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}
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void main() {
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test('canvas APIs should not crash', () async {
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final Paint paint = Paint();
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const Rect rect = Rect.fromLTRB(double.nan, double.nan, double.nan, double.nan);
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final RRect rrect = RRect.fromRectAndCorners(rect);
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const Offset offset = Offset(double.nan, double.nan);
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final Path path = Path();
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const Color color = Color(0);
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final Paragraph paragraph = ParagraphBuilder(ParagraphStyle()).build();
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final PictureRecorder recorder = PictureRecorder();
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final Canvas recorderCanvas = Canvas(recorder);
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recorderCanvas.scale(1.0, 1.0);
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final Picture picture = recorder.endRecording();
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final Image image = await picture.toImage(1, 1);
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try { Canvas(null, null); } catch (error) { } // ignore: empty_catches
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try { Canvas(null, rect); } catch (error) { } // ignore: empty_catches
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try { Canvas(PictureRecorder(), null); } catch (error) { } // ignore: empty_catches
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try { Canvas(PictureRecorder(), rect); } catch (error) { } // ignore: empty_catches
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try {
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PictureRecorder()
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..endRecording()
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..endRecording()
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..endRecording();
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} catch (error) { } // ignore: empty_catches
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testCanvas((Canvas canvas) => canvas.clipPath(path));
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testCanvas((Canvas canvas) => canvas.clipRect(rect));
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testCanvas((Canvas canvas) => canvas.clipRRect(rrect));
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testCanvas((Canvas canvas) => canvas.drawArc(rect, 0.0, 0.0, false, paint));
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testCanvas((Canvas canvas) => canvas.drawAtlas(image, <RSTransform>[], <Rect>[], <Color>[], BlendMode.src, rect, paint));
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testCanvas((Canvas canvas) => canvas.drawCircle(offset, double.nan, paint));
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testCanvas((Canvas canvas) => canvas.drawColor(color, BlendMode.src));
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testCanvas((Canvas canvas) => canvas.drawDRRect(rrect, rrect, paint));
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testCanvas((Canvas canvas) => canvas.drawImage(image, offset, paint));
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testCanvas((Canvas canvas) => canvas.drawImageNine(image, rect, rect, paint));
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testCanvas((Canvas canvas) => canvas.drawImageRect(image, rect, rect, paint));
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testCanvas((Canvas canvas) => canvas.drawLine(offset, offset, paint));
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testCanvas((Canvas canvas) => canvas.drawOval(rect, paint));
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testCanvas((Canvas canvas) => canvas.drawPaint(paint));
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testCanvas((Canvas canvas) => canvas.drawParagraph(paragraph, offset));
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testCanvas((Canvas canvas) => canvas.drawPath(path, paint));
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testCanvas((Canvas canvas) => canvas.drawPicture(picture));
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testCanvas((Canvas canvas) => canvas.drawPoints(PointMode.points, <Offset>[], paint));
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testCanvas((Canvas canvas) => canvas.drawRawAtlas(image, Float32List(0), Float32List(0), Int32List(0), BlendMode.src, rect, paint));
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testCanvas((Canvas canvas) => canvas.drawRawPoints(PointMode.points, Float32List(0), paint));
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testCanvas((Canvas canvas) => canvas.drawRect(rect, paint));
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testCanvas((Canvas canvas) => canvas.drawRRect(rrect, paint));
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testCanvas((Canvas canvas) => canvas.drawShadow(path, color, double.nan, null));
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testCanvas((Canvas canvas) => canvas.drawShadow(path, color, double.nan, false));
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testCanvas((Canvas canvas) => canvas.drawShadow(path, color, double.nan, true));
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testCanvas((Canvas canvas) => canvas.drawVertices(Vertices(VertexMode.triangles, <Offset>[]), null, paint));
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testCanvas((Canvas canvas) => canvas.getSaveCount());
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testCanvas((Canvas canvas) => canvas.restore());
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testCanvas((Canvas canvas) => canvas.rotate(double.nan));
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testCanvas((Canvas canvas) => canvas.save());
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testCanvas((Canvas canvas) => canvas.saveLayer(rect, paint));
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testCanvas((Canvas canvas) => canvas.saveLayer(null, null));
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testCanvas((Canvas canvas) => canvas.scale(double.nan, double.nan));
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testCanvas((Canvas canvas) => canvas.skew(double.nan, double.nan));
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testCanvas((Canvas canvas) => canvas.transform(null));
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testCanvas((Canvas canvas) => canvas.translate(double.nan, double.nan));
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});
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}
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