Srujan Gaddam
5b2482004b
Remaining tests that don't belong to any real test suite, but need some changes beyond just null asserts to be migrated. Change-Id: I91c0cb02eb72ada572a10c567b5d8bac596b16a4 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/142445 Reviewed-by: Bob Nystrom <rnystrom@google.com>
86 lines
2.4 KiB
Dart
86 lines
2.4 KiB
Dart
// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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library canvas_rendering_context_2d_test;
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import 'dart:html';
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import 'dart:math';
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import 'canvas_rendering_util.dart';
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import 'package:expect/minitest.dart';
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main() {
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setUp(setupFunc);
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tearDown(tearDownFunc);
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final x = 20;
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final y = 20;
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test('without maxWidth', () {
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context.font = '40pt Garamond';
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context.fillStyle = 'blue';
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// Draw a blue box.
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context.fillText('█', x, y);
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var width = context.measureText('█').width.ceil();
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checkPixel(readPixel(x, y), [0, 0, 255, 255]);
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checkPixel(readPixel(x + 10, y), [0, 0, 255, 255]);
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expectPixelUnfilled(x - 10, y);
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expectPixelFilled(x, y);
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expectPixelFilled(x + 10, y);
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// The box does not draw after `width` pixels.
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// Check -2 rather than -1 because this seems
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// to run into a rounding error on Mac bots.
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expectPixelFilled((x + width - 2).toInt(), y);
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expectPixelUnfilled((x + width + 1).toInt(), y);
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});
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test('with maxWidth null', () {
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context.font = '40pt Garamond';
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context.fillStyle = 'blue';
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// Draw a blue box with null maxWidth.
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context.fillText('█', x, y, null);
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var width = context.measureText('█').width.ceil();
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checkPixel(readPixel(x, y), [0, 0, 255, 255]);
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checkPixel(readPixel(x + 10, y), [0, 0, 255, 255]);
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expectPixelUnfilled(x - 10, y);
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expectPixelFilled(x, y);
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expectPixelFilled(x + 10, y);
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// The box does not draw after `width` pixels.
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// Check -2 rather than -1 because this seems
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// to run into a rounding error on Mac bots.
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expectPixelFilled((x + width - 2).toInt(), y);
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expectPixelUnfilled((x + width + 1).toInt(), y);
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});
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test('with maxWidth defined', () {
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context.font = '40pt Garamond';
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context.fillStyle = 'blue';
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final maxWidth = 20;
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// Draw a blue box that's at most 20 pixels wide.
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context.fillText('█', x, y, maxWidth);
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checkPixel(readPixel(x, y), [0, 0, 255, 255]);
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checkPixel(readPixel(x + 10, y), [0, 0, 255, 255]);
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// The box does not draw after 20 pixels.
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expectPixelUnfilled(x - 10, y);
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expectPixelUnfilled(x + maxWidth + 1, y);
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expectPixelUnfilled(x + maxWidth + 20, y);
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expectPixelFilled(x, y);
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expectPixelFilled(x + 10, y);
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});
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}
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