blob: 73273dac10dc1c225edd5575cc4fad8b1e2ccd5f [file] [log] [blame]
// Copyright 2013 The Flutter 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:test/bootstrap/browser.dart';
import 'package:test/test.dart';
import 'package:ui/src/engine.dart';
import 'package:ui/ui.dart' as ui;
import 'mock_engine_canvas.dart';
void main() {
internalBootstrapBrowserTest(() => testMain);
}
Future<void> testMain() async {
await initializeEngine();
group('EngineCanvas', () {
late MockEngineCanvas mockCanvas;
late ui.Paragraph paragraph;
void testCanvas(
String description,
void Function(EngineCanvas canvas) testFn, {
ui.Rect canvasSize = const ui.Rect.fromLTWH(0, 0, 100, 100),
ui.VoidCallback? whenDone,
}) {
test(description, () {
testFn(BitmapCanvas(canvasSize, RenderStrategy()));
testFn(DomCanvas(domDocument.createElement('flt-picture')));
testFn(mockCanvas = MockEngineCanvas());
whenDone?.call();
});
}
testCanvas('draws laid out paragraph', (EngineCanvas canvas) {
const ui.Rect screenRect = ui.Rect.fromLTWH(0, 0, 100, 100);
final RecordingCanvas recordingCanvas = RecordingCanvas(screenRect);
final ui.ParagraphBuilder builder =
ui.ParagraphBuilder(ui.ParagraphStyle());
builder.addText('sample');
paragraph = builder.build();
paragraph.layout(const ui.ParagraphConstraints(width: 100));
recordingCanvas.drawParagraph(paragraph, const ui.Offset(10, 10));
recordingCanvas.endRecording();
canvas.clear();
recordingCanvas.apply(canvas, screenRect);
}, whenDone: () {
expect(mockCanvas.methodCallLog, hasLength(3));
MockCanvasCall call = mockCanvas.methodCallLog[0];
expect(call.methodName, 'clear');
call = mockCanvas.methodCallLog[1];
expect(call.methodName, 'drawParagraph');
expect(call.arguments['paragraph'], paragraph);
expect(call.arguments['offset'], const ui.Offset(10, 10));
});
testCanvas('ignores paragraphs that were not laid out',
(EngineCanvas canvas) {
const ui.Rect screenRect = ui.Rect.fromLTWH(0, 0, 100, 100);
final RecordingCanvas recordingCanvas = RecordingCanvas(screenRect);
final ui.ParagraphBuilder builder =
ui.ParagraphBuilder(ui.ParagraphStyle());
builder.addText('sample');
final ui.Paragraph paragraph = builder.build();
recordingCanvas.drawParagraph(paragraph, const ui.Offset(10, 10));
recordingCanvas.endRecording();
canvas.clear();
recordingCanvas.apply(canvas, screenRect);
}, whenDone: () {
expect(mockCanvas.methodCallLog, hasLength(2));
expect(mockCanvas.methodCallLog[0].methodName, 'clear');
expect(mockCanvas.methodCallLog[1].methodName, 'endOfPaint');
});
});
}