Add all dart:html tests from the sdk to test/codegen.

test/codegen/lib/html/canvasrenderingcontext2d_test.dart

+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library canvas_rendering_context_2d_test;
+
+import 'dart:html';
+import 'dart:math';
+
+import 'package:unittest/html_individual_config.dart';
+import 'package:unittest/unittest.dart';
+
+// Some rounding errors in the browsers.
+checkPixel(List<int> pixel, List<int> expected) {
+  expect(pixel[0], closeTo(expected[0], 2));
+  expect(pixel[1], closeTo(expected[1], 2));
+  expect(pixel[2], closeTo(expected[2], 2));
+  expect(pixel[3], closeTo(expected[3], 2));
+}
+
+var canvas;
+var context;
+var otherCanvas;
+var otherContext;
+var video;
+
+void createCanvas() {
+  canvas = new CanvasElement();
+  canvas.width = 100;
+  canvas.height = 100;
+
+  context = canvas.context2D;
+}
+
+void createOtherCanvas() {
+  otherCanvas = new CanvasElement();
+  otherCanvas.width = 10;
+  otherCanvas.height = 10;
+  otherContext = otherCanvas.context2D;
+  otherContext.fillStyle = "red";
+  otherContext.fillRect(0, 0, otherCanvas.width, otherCanvas.height);
+}
+
+void setupFunc() {
+  createCanvas();
+  createOtherCanvas();
+  video = new VideoElement();
+}
+
+void tearDownFunc() {
+  canvas = null;
+  context = null;
+  otherCanvas = null;
+  otherContext = null;
+  video = null;
+}
+
+List<int> readPixel(int x, int y) {
+  var imageData = context.getImageData(x, y, 1, 1);
+  return imageData.data;
+}
+
+/// Returns true if the pixel has some data in it, false otherwise.
+bool isPixelFilled(int x, int y) => readPixel(x,y).any((p) => p != 0);
+
+String pixelDataToString(List<int> data, int x, int y) {
+  return '[${data.join(", ")}]';
+}
+
+String _filled(bool v) => v ? "filled" : "unfilled";
+
+void expectPixelFilled(int x, int y, [bool filled = true]) {
+  expect(isPixelFilled(x, y), filled, reason:
+      'Pixel at ($x, $y) was expected to'
+      ' be: <${_filled(filled)}> but was: <${_filled(!filled)}> with data: '
+      '${pixelDataToString(readPixel(x, y), x, y)}');
+}
+
+void expectPixelUnfilled(int x, int y) {
+  expectPixelFilled(x, y, false);
+}
+
+main() {
+  useHtmlIndividualConfiguration();
+
+  group('pixel_manipulation', () {
+    setUp(setupFunc);
+    tearDown(tearDownFunc);
+
+    test('setFillColorRgb', () {
+      context.setFillColorRgb(255, 0, 255, 1);
+      context.fillRect(0, 0, canvas.width, canvas.height);
+      expect(readPixel(2, 2), [255, 0, 255, 255]);
+    });
+
+    test('setFillColorHsl hue', () {
+      context.setFillColorHsl(0, 100, 50);
+      context.fillRect(0, 0, canvas.width, canvas.height);
+      checkPixel(readPixel(2, 2), [255, 0, 0, 255]);
+    });
+
+    test('setFillColorHsl hue 2', () {
+      context.setFillColorHsl(240, 100, 50);
+      context.fillRect(0, 0, canvas.width, canvas.height);
+      checkPixel(readPixel(2, 2), [0, 0, 255, 255]);
+    });
+
+    test('setFillColorHsl sat', () {
+      context.setFillColorHsl(0, 0, 50);
+      context.fillRect(0, 0, canvas.width, canvas.height);
+      checkPixel(readPixel(2, 2), [127, 127, 127, 255]);
+    });
+
+    test('setStrokeColorRgb', () {
+      context.setStrokeColorRgb(255, 0, 255, 1);
+      context.lineWidth = 10;
+      context.strokeRect(0, 0, canvas.width, canvas.height);
+      expect(readPixel(2, 2), [255, 0, 255, 255]);
+    });
+
+    test('setStrokeColorHsl hue', () {
+      context.setStrokeColorHsl(0, 100, 50);
+      context.lineWidth = 10;
+      context.strokeRect(0, 0, canvas.width, canvas.height);
+      expect(readPixel(2, 2), [255, 0, 0, 255]);
+    });
+
+    test('setStrokeColorHsl hue 2', () {
+      context.setStrokeColorHsl(240, 100, 50);
+      context.lineWidth = 10;
+      context.strokeRect(0, 0, canvas.width, canvas.height);
+      expect(readPixel(2, 2), [0, 0, 255, 255]);
+    });
+
+    test('setStrokeColorHsl sat', () {
+      context.setStrokeColorHsl(0, 0, 50);
+      context.lineWidth = 10;
+      context.strokeRect(0, 0, canvas.width, canvas.height);
+      checkPixel(readPixel(2, 2), [127, 127, 127, 255]);
+    });
+
+    test('fillStyle', () {
+      context.fillStyle = "red";
+      context.fillRect(0, 0, canvas.width, canvas.height);
+      checkPixel(readPixel(2, 2), [255, 0, 0, 255]);
+    });
+
+    test('strokeStyle', () {
+      context.strokeStyle = "blue";
+      context.lineWidth = 10;
+      context.strokeRect(0, 0, canvas.width, canvas.height);
+      expect(readPixel(2, 2), [0, 0, 255, 255]);
+    });
+
+    test('fillStyle linearGradient', () {
+      var gradient = context.createLinearGradient(0,0,20,20);
+      gradient.addColorStop(0,'red');
+      gradient.addColorStop(1,'blue');
+      context.fillStyle = gradient;
+      context.fillRect(0, 0, canvas.width, canvas.height);
+      expect(context.fillStyle is CanvasGradient, isTrue);
+    });
+
+    test('putImageData', () {
+      context.fillStyle = 'green';
+      context.fillRect(0, 0, canvas.width, canvas.height);
+
+      ImageData expectedData = context.getImageData(0, 0, 10, 10);
+      expectedData.data[0] = 25;
+      expectedData.data[1] = 65;
+      expectedData.data[2] = 255;
+      // Set alpha to 255 to make the pixels show up.
+      expectedData.data[3] = 255;
+
+      context.putImageData(expectedData, 0, 0);
+
+      var resultingData = context.getImageData(0, 0, 10, 10);
+      // Make sure that we read back what we wrote.
+      expect(resultingData.data, expectedData.data);
+    });
+
+    test('putImageData dirty rectangle', () {
+      context.fillStyle = 'green';
+      context.fillRect(0, 0, canvas.width, canvas.height);
+
+      ImageData drawnData = context.getImageData(0, 0, 10, 10);
+      drawnData.data[0] = 25;
+      drawnData.data[1] = 65;
+      drawnData.data[2] = 255;
+      drawnData.data[3] = 255;
+
+      // Draw these pixels to the 2nd pixel.
+      drawnData.data[2 * 4 + 0] = 25;
+      drawnData.data[2 * 4 + 1] = 65;
+      drawnData.data[2 * 4 + 2] = 255;
+      drawnData.data[2 * 4 + 3] = 255;
+
+      // Draw these pixels to the 8th pixel.
+      drawnData.data[7 * 4 + 0] = 25;
+      drawnData.data[7 * 4 + 1] = 65;
+      drawnData.data[7 * 4 + 2] = 255;
+      drawnData.data[7 * 4 + 3] = 255;
+
+      // Use a dirty rectangle to limit what pixels are drawn.
+      context.putImageData(drawnData, 0, 0, 1, 0, 5, 5);
+
+      // Expect the data to be all green, as we skip all drawn pixels.
+      ImageData expectedData = context.createImageData(10, 10);
+      for (int i = 0; i < expectedData.data.length; i++) {
+        switch (i % 4) {
+          case 0:
+            expectedData.data[i] =  0;
+            break;
+          case 1:
+            expectedData.data[i] =  128;
+            break;
+          case 2:
+            expectedData.data[i] =  0;
+            break;
+          case 3:
+            expectedData.data[i] =  255;
+            break;
+        }
+      }
+      // Third pixel was copied.
+      expectedData.data[2 * 4 + 0] = 25;
+      expectedData.data[2 * 4 + 1] = 65;
+      expectedData.data[2 * 4 + 2] = 255;
+      expectedData.data[2 * 4 + 3] = 255;
+
+      // Make sure that our data is all green.
+      var resultingData = context.getImageData(0, 0, 10, 10);
+      expect(resultingData.data, expectedData.data);
+    });
+
+    test('putImageData throws with wrong number of arguments', () {
+      ImageData expectedData = context.getImageData(0, 0, 10, 10);
+
+      // TODO(antonm): in Dartium ArgumentError should be thrown too.
+      expect(() => context.putImageData(expectedData, 0, 0, 1),
+        throws);
+      expect(() => context.putImageData(expectedData, 0, 0, 1, 1),
+        throws);
+      expect(() => context.putImageData(expectedData, 0, 0, 1, 1, 5),
+        throws);
+    });
+  });
+
+  group('arc', () {
+    setUp(setupFunc);
+    tearDown(tearDownFunc);
+
+    test('default arc should be clockwise', () {
+      context.beginPath();
+      final r = 10;
+
+      // Center of arc.
+      final cx = 20;
+      final cy = 20;
+      // Arc centered at (20, 20) with radius 10 will go clockwise
+      // from (20 + r, 20) to (20, 20 + r), which is 1/4 of a circle.
+      context.arc(cx, cy, r, 0, PI/2);
+
+      context.strokeStyle = 'green';
+      context.lineWidth = 2;
+      context.stroke();
+
+      // Center should not be filled.
+      expectPixelUnfilled(cx, cy);
+
+      // (cx + r, cy) should be filled.
+      expectPixelFilled(cx + r, cy, true);
+      // (cx, cy + r) should be filled.
+      expectPixelFilled(cx, cy + r, true);
+      // (cx - r, cy) should be empty.
+      expectPixelFilled(cx - r, cy, false);
+      // (cx, cy - r) should be empty.
+      expectPixelFilled(cx, cy - r, false);
+
+      // (cx + r/SQRT2, cy + r/SQRT2) should be filled.
+      expectPixelFilled((cx + r/SQRT2).toInt(), (cy + r/SQRT2).toInt(), true);
+
+      // (cx - r/SQRT2, cy - r/SQRT2) should be empty.
+      expectPixelFilled((cx - r/SQRT2).toInt(), (cy + r/SQRT2).toInt(), false);
+
+      // (cx + r/SQRT2, cy + r/SQRT2) should be empty.
+      expectPixelFilled((cx - r/SQRT2).toInt(), (cy - r/SQRT2).toInt(), false);
+
+      // (cx - r/SQRT2, cy - r/SQRT2) should be empty.
+      expectPixelFilled((cx + r/SQRT2).toInt(), (cy - r/SQRT2).toInt(), false);
+    });
+
+    test('arc anticlockwise', () {
+      context.beginPath();
+      final r = 10;
+
+      // Center of arc.
+      final cx = 20;
+      final cy = 20;
+      // Arc centered at (20, 20) with radius 10 will go anticlockwise
+      // from (20 + r, 20) to (20, 20 + r), which is 3/4 of a circle.
+      // Because of the way arc work, when going anti-clockwise, the end points
+      // are not included, so small values are added to radius to make a little
+      // more than a 3/4 circle.
+      context.arc(cx, cy, r, .1, PI/2 - .1, true);
+
+      context.strokeStyle = 'green';
+      context.lineWidth = 2;
+      context.stroke();
+
+      // Center should not be filled.
+      expectPixelUnfilled(cx, cy);
+
+      // (cx + r, cy) should be filled.
+      expectPixelFilled(cx + r, cy, true);
+      // (cx, cy + r) should be filled.
+      expectPixelFilled(cx, cy + r, true);
+      // (cx - r, cy) should be filled.
+      expectPixelFilled(cx - r, cy, true);
+      // (cx, cy - r) should be filled.
+      expectPixelFilled(cx, cy - r, true);
+
+      // (cx + r/SQRT2, cy + r/SQRT2) should be empty.
+      expectPixelFilled((cx + r/SQRT2).toInt(), (cy + r/SQRT2).toInt(), false);
+
+      // (cx - r/SQRT2, cy - r/SQRT2) should be filled.
+      expectPixelFilled((cx - r/SQRT2).toInt(), (cy + r/SQRT2).toInt(), true);
+
+      // (cx + r/SQRT2, cy + r/SQRT2) should be filled.
+      expectPixelFilled((cx - r/SQRT2).toInt(), (cy - r/SQRT2).toInt(), true);
+
+      // (cx - r/SQRT2, cy - r/SQRT2) should be filled.
+      expectPixelFilled((cx + r/SQRT2).toInt(), (cy - r/SQRT2).toInt(), true);
+    });
+  });
+
+  group('drawImage_image_element', () {
+    setUp(setupFunc);
+    tearDown(tearDownFunc);
+    // Draw an image to the canvas from an image element.
+    test('with 3 params', () {
+      var dataUrl = otherCanvas.toDataUrl('image/gif');
+      var img = new ImageElement();
+
+      img.onLoad.listen(expectAsync((_) {
+        context.drawImage(img, 50, 50);
+
+        expectPixelFilled(50, 50);
+        expectPixelFilled(55, 55);
+        expectPixelFilled(59, 59);
+        expectPixelUnfilled(60, 60);
+        expectPixelUnfilled(0, 0);
+        expectPixelUnfilled(70, 70);
+      }));
+      img.onError.listen((_) {
+        fail('URL failed to load.');
+      });
+      img.src = dataUrl;
+    });
+
+    // Draw an image to the canvas from an image element and scale it.
+    test('with 5 params', () {
+      var dataUrl = otherCanvas.toDataUrl('image/gif');
+      var img = new ImageElement();
+
+      img.onLoad.listen(expectAsync((_) {
+        context.drawImageToRect(img, new Rectangle(50, 50, 20, 20));
+
+        expectPixelFilled(50, 50);
+        expectPixelFilled(55, 55);
+        expectPixelFilled(59, 59);
+        expectPixelFilled(60, 60);
+        expectPixelFilled(69, 69);
+        expectPixelUnfilled(70, 70);
+        expectPixelUnfilled(0, 0);
+        expectPixelUnfilled(80, 80);
+      }));
+      img.onError.listen((_) {
+        fail('URL failed to load.');
+      });
+      img.src = dataUrl;
+    });
+
+    // Draw an image to the canvas from an image element and scale it.
+    test('with 9 params', () {
+      otherContext.fillStyle = "blue";
+      otherContext.fillRect(5, 5, 5, 5);
+      var dataUrl = otherCanvas.toDataUrl('image/gif');
+      var img = new ImageElement();
+
+      img.onLoad.listen(expectAsync((_) {
+        // This will take a 6x6 square from the first canvas from position 2,2
+        // and then scale it to a 20x20 square and place it to the second
+        // canvas at 50,50.
+        context.drawImageToRect(img, new Rectangle(50, 50, 20, 20),
+          sourceRect: new Rectangle(2, 2, 6, 6));
+
+        checkPixel(readPixel(50, 50), [255, 0, 0, 255]);
+        checkPixel(readPixel(55, 55), [255, 0, 0, 255]);
+        checkPixel(readPixel(60, 50), [255, 0, 0, 255]);
+        checkPixel(readPixel(65, 65), [0, 0, 255, 255]);
+        checkPixel(readPixel(69, 69), [0, 0, 255, 255]);
+
+        expectPixelFilled(50, 50);
+        expectPixelFilled(55, 55);
+        expectPixelFilled(59, 59);
+        expectPixelFilled(60, 60);
+        expectPixelFilled(69, 69);
+        expectPixelUnfilled(70, 70);
+        expectPixelUnfilled(0, 0);
+        expectPixelUnfilled(80, 80);
+      }));
+      img.onError.listen((_) {
+        fail('URL failed to load.');
+      });
+      img.src = dataUrl;
+    });
+  });
+
+  // These videos and base64 strings are the same video, representing 2
+  // frames of 8x8 red pixels.
+  // The videos were created with:
+  //   convert -size 8x8 xc:red blank1.jpg
+  //   convert -size 8x8 xc:red blank2.jpg
+  //   avconv -f image2  -i "blank%d.jpg" -c:v libx264 small.mp4
+  //   avconv -i small.mp4 small.webm
+  //   python -m base64 -e small.mp4
+  //   python -m base64 -e small.webm
+  var mp4VideoUrl = '/root_dart/tests/html/small.mp4';
+  var webmVideoUrl = '/root_dart/tests/html/small.webm';
+  var mp4VideoDataUrl =
+      'data:video/mp4;base64,AAAAIGZ0eXBpc29tAAACAGlzb21pc28yYXZjMW1wNDEAAA'
+      'AIZnJlZQAAAsdtZGF0AAACmwYF//+X3EXpvebZSLeWLNgg2SPu73gyNjQgLSBjb3JlID'
+      'EyMCByMjE1MSBhM2Y0NDA3IC0gSC4yNjQvTVBFRy00IEFWQyBjb2RlYyAtIENvcHlsZW'
+      'Z0IDIwMDMtMjAxMSAtIGh0dHA6Ly93d3cudmlkZW9sYW4ub3JnL3gyNjQuaHRtbCAtIG'
+      '9wdGlvbnM6IGNhYmFjPTEgcmVmPTMgZGVibG9jaz0xOjA6MCBhbmFseXNlPTB4MToweD'
+      'ExMSBtZT1oZXggc3VibWU9NyBwc3k9MSBwc3lfcmQ9MS4wMDowLjAwIG1peGVkX3JlZj'
+      '0wIG1lX3JhbmdlPTE2IGNocm9tYV9tZT0xIHRyZWxsaXM9MSA4eDhkY3Q9MCBjcW09MC'
+      'BkZWFkem9uZT0yMSwxMSBmYXN0X3Bza2lwPTEgY2hyb21hX3FwX29mZnNldD0tMiB0aH'
+      'JlYWRzPTE4IHNsaWNlZF90aHJlYWRzPTAgbnI9MCBkZWNpbWF0ZT0xIGludGVybGFjZW'
+      'Q9MCBibHVyYXlfY29tcGF0PTAgY29uc3RyYWluZWRfaW50cmE9MCBiZnJhbWVzPTMgYl'
+      '9weXJhbWlkPTAgYl9hZGFwdD0xIGJfYmlhcz0wIGRpcmVjdD0xIHdlaWdodGI9MCBvcG'
+      'VuX2dvcD0xIHdlaWdodHA9MiBrZXlpbnQ9MjUwIGtleWludF9taW49MjUgc2NlbmVjdX'
+      'Q9NDAgaW50cmFfcmVmcmVzaD0wIHJjX2xvb2thaGVhZD00MCByYz1jcmYgbWJ0cmVlPT'
+      'EgY3JmPTUxLjAgcWNvbXA9MC42MCBxcG1pbj0wIHFwbWF4PTY5IHFwc3RlcD00IGlwX3'
+      'JhdGlvPTEuMjUgYXE9MToxLjAwAIAAAAARZYiEB//3aoK5/tP9+8yeuIEAAAAHQZoi2P'
+      '/wgAAAAzxtb292AAAAbG12aGQAAAAAAAAAAAAAAAAAAAPoAAAAUAABAAABAAAAAAAAAA'
+      'AAAAAAAQAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAA'
+      'AAAAAAAAAAAAAAAAAAAAACAAAAGGlvZHMAAAAAEICAgAcAT/////7/AAACUHRyYWsAAA'
+      'BcdGtoZAAAAA8AAAAAAAAAAAAAAAEAAAAAAAAAUAAAAAAAAAAAAAAAAAAAAAAAAQAAAA'
+      'AAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAEAAAAAACAAAAAgAAAAAACRlZHRzAAAAHG'
+      'Vsc3QAAAAAAAAAAQAAAFAAAAABAAEAAAAAAchtZGlhAAAAIG1kaGQAAAAAAAAAAAAAAA'
+      'AAAAAZAAAAAlXEAAAAAAAtaGRscgAAAAAAAAAAdmlkZQAAAAAAAAAAAAAAAFZpZGVvSG'
+      'FuZGxlcgAAAAFzbWluZgAAABR2bWhkAAAAAQAAAAAAAAAAAAAAJGRpbmYAAAAcZHJlZg'
+      'AAAAAAAAABAAAADHVybCAAAAABAAABM3N0YmwAAACXc3RzZAAAAAAAAAABAAAAh2F2Yz'
+      'EAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAACAAIAEgAAABIAAAAAAAAAAEAAAAAAAAAAA'
+      'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAY//8AAAAxYXZjQwFNQAr/4QAYZ01ACuiPyy'
+      '4C2QAAAwABAAADADIPEiUSAQAGaOvAZSyAAAAAGHN0dHMAAAAAAAAAAQAAAAIAAAABAA'
+      'AAFHN0c3MAAAAAAAAAAQAAAAEAAAAYY3R0cwAAAAAAAAABAAAAAgAAAAEAAAAcc3RzYw'
+      'AAAAAAAAABAAAAAQAAAAEAAAABAAAAHHN0c3oAAAAAAAAAAAAAAAIAAAK0AAAACwAAAB'
+      'hzdGNvAAAAAAAAAAIAAAAwAAAC5AAAAGB1ZHRhAAAAWG1ldGEAAAAAAAAAIWhkbHIAAA'
+      'AAAAAAAG1kaXJhcHBsAAAAAAAAAAAAAAAAK2lsc3QAAAAjqXRvbwAAABtkYXRhAAAAAQ'
+      'AAAABMYXZmNTMuMjEuMQ==';
+  var webmVideoDataUrl =
+      'data:video/webm;base64,GkXfowEAAAAAAAAfQoaBAUL3gQFC8oEEQvOBCEKChHdlY'
+      'm1Ch4ECQoWBAhhTgGcBAAAAAAAB/hFNm3RALE27i1OrhBVJqWZTrIHfTbuMU6uEFlSua'
+      '1OsggEsTbuMU6uEHFO7a1OsggHk7AEAAAAAAACkAAAAAAAAAAAAAAAAAAAAAAAAAAAAA'
+      'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA'
+      'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA'
+      'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAVSalmAQAAAAAAA'
+      'EEq17GDD0JATYCLTGF2ZjUzLjIxLjFXQYtMYXZmNTMuMjEuMXOkkJatuHwTJ7cvFLSzB'
+      'Smxbp5EiYhAVAAAAAAAABZUrmsBAAAAAAAAR64BAAAAAAAAPteBAXPFgQGcgQAitZyDd'
+      'W5khoVWX1ZQOIOBASPjg4QCYloA4AEAAAAAAAASsIEIuoEIVLCBCFS6gQhUsoEDH0O2d'
+      'QEAAAAAAABZ54EAo72BAACA8AIAnQEqCAAIAABHCIWFiIWEiAICAnWqA/gD+gINTRgA/'
+      'v0hRf/kb+PnRv/I4//8WE8DijI//FRAo5WBACgAsQEAARAQABgAGFgv9AAIAAAcU7trA'
+      'QAAAAAAAA67jLOBALeH94EB8YIBfw==';
+  group('drawImage_video_element', () {
+    setUp(setupFunc);
+    tearDown(tearDownFunc);
+
+    test('with 3 params', () {
+      video.onCanPlay.listen(expectAsync((_) {
+        context.drawImage(video, 50, 50);
+
+        expectPixelFilled(50, 50);
+        expectPixelFilled(54, 54);
+        expectPixelFilled(57, 57);
+        expectPixelUnfilled(58, 58);
+        expectPixelUnfilled(0, 0);
+        expectPixelUnfilled(70, 70);
+      }));
+
+      video.onError.listen((_) {
+        fail('URL failed to load.');
+      });
+
+      if(video.canPlayType('video/webm; codecs="vp8.0, vorbis"', '') != '') {
+        video.src = webmVideoUrl;
+      } else if(video.canPlayType('video/mp4; codecs="avc1.4D401E, mp4a.40.2"',
+            null) != '') {
+        video.src = mp4VideoUrl;
+      } else {
+        window.console.log('Video is not supported on this system.');
+      }
+    });
+
+    test('with 5 params', () {
+      video.onCanPlay.listen(expectAsync((_) {
+        context.drawImageToRect(video, new Rectangle(50, 50, 20, 20));
+
+        expectPixelFilled(50, 50);
+        expectPixelFilled(55, 55);
+        expectPixelFilled(59, 59);
+        expectPixelFilled(60, 60);
+        expectPixelFilled(69, 69);
+        expectPixelUnfilled(70, 70);
+        expectPixelUnfilled(0, 0);
+        expectPixelUnfilled(80, 80);
+      }));
+      video.onError.listen((_) {
+        fail('URL failed to load.');
+      });
+
+      if(video.canPlayType('video/webm; codecs="vp8.0, vorbis"', '') != '') {
+        video.src = webmVideoUrl;
+      } else if(video.canPlayType('video/mp4; codecs="avc1.4D401E, mp4a.40.2"',
+            null) != '') {
+        video.src = mp4VideoUrl;
+      } else {
+        // TODO(amouravski): Better fallback?
+        window.console.log('Video is not supported on this system.');
+      }
+    });
+
+    test('with 9 params', () {
+      video.onCanPlay.listen(expectAsync((_) {
+        context.drawImageToRect(video, new Rectangle(50, 50, 20, 20),
+          sourceRect: new Rectangle(2, 2, 6, 6));
+
+        expectPixelFilled(50, 50);
+        expectPixelFilled(55, 55);
+        expectPixelFilled(59, 59);
+        expectPixelFilled(60, 60);
+        expectPixelFilled(69, 69);
+        expectPixelUnfilled(70, 70);
+        expectPixelUnfilled(0, 0);
+        expectPixelUnfilled(80, 80);
+      }));
+      video.onError.listen((_) {
+        fail('URL failed to load.');
+      });
+
+      if(video.canPlayType('video/webm; codecs="vp8.0, vorbis"', '') != '') {
+        video.src = webmVideoUrl;
+      } else if(video.canPlayType('video/mp4; codecs="avc1.4D401E, mp4a.40.2"',
+            null) != '') {
+        video.src = mp4VideoUrl;
+      } else {
+        // TODO(amouravski): Better fallback?
+        window.console.log('Video is not supported on this system.');
+      }
+    });
+  });
+
+  group('drawImage_video_element_dataUrl', () {
+    setUp(setupFunc);
+    tearDown(tearDownFunc);
+
+    test('with 9 params', () {
+      video = new VideoElement();
+      canvas = new CanvasElement();
+      video.onCanPlay.listen(expectAsync((_) {
+        context.drawImageToRect(video, new Rectangle(50, 50, 20, 20),
+          sourceRect: new Rectangle(2, 2, 6, 6));
+
+        expectPixelFilled(50, 50);
+        expectPixelFilled(55, 55);
+        expectPixelFilled(59, 59);
+        expectPixelFilled(60, 60);
+        expectPixelFilled(69, 69);
+        expectPixelUnfilled(70, 70);
+        expectPixelUnfilled(0, 0);
+        expectPixelUnfilled(80, 80);
+      }));
+      video.onError.listen((_) {
+        fail('URL failed to load.');
+      });
+
+      if(video.canPlayType('video/webm; codecs="vp8.0, vorbis"', '') != '') {
+        video.src = webmVideoDataUrl;
+      } else if(video.canPlayType('video/mp4; codecs="avc1.4D401E, mp4a.40.2"',
+            null) != '') {
+        video.src = mp4VideoDataUrl;
+      } else {
+        // TODO(amouravski): Better fallback?
+        window.console.log('Video is not supported on this system.');
+      }
+    });
+  });
+
+  group('drawImage_canvas_element', () {
+    setUp(setupFunc);
+    tearDown(tearDownFunc);
+
+    test('with 3 params', () {
+      // Draw an image to the canvas from a canvas element.
+      context.drawImage(otherCanvas, 50, 50);
+
+      expectPixelFilled(50, 50);
+      expectPixelFilled(55, 55);
+      expectPixelFilled(59, 59);
+      expectPixelUnfilled(60, 60);
+      expectPixelUnfilled(0, 0);
+      expectPixelUnfilled(70, 70);
+    });
+    test('with 5 params', () {
+      // Draw an image to the canvas from a canvas element.
+      context.drawImageToRect(otherCanvas, new Rectangle(50, 50, 20, 20));
+
+      expectPixelFilled(50, 50);
+      expectPixelFilled(55, 55);
+      expectPixelFilled(59, 59);
+      expectPixelFilled(60, 60);
+      expectPixelFilled(69, 69);
+      expectPixelUnfilled(70, 70);
+      expectPixelUnfilled(0, 0);
+      expectPixelUnfilled(80, 80);
+    });
+    test('with 9 params', () {
+      // Draw an image to the canvas from a canvas element.
+      otherContext.fillStyle = "blue";
+      otherContext.fillRect(5, 5, 5, 5);
+      context.drawImageToRect(otherCanvas, new Rectangle(50, 50, 20, 20),
+          sourceRect: new Rectangle(2, 2, 6, 6));
+
+      checkPixel(readPixel(50, 50), [255, 0, 0, 255]);
+      checkPixel(readPixel(55, 55), [255, 0, 0, 255]);
+      checkPixel(readPixel(60, 50), [255, 0, 0, 255]);
+      checkPixel(readPixel(65, 65), [0, 0, 255, 255]);
+      checkPixel(readPixel(69, 69), [0, 0, 255, 255]);
+      expectPixelFilled(50, 50);
+      expectPixelFilled(55, 55);
+      expectPixelFilled(59, 59);
+      expectPixelFilled(60, 60);
+      expectPixelFilled(69, 69);
+      expectPixelUnfilled(70, 70);
+      expectPixelUnfilled(0, 0);
+      expectPixelUnfilled(80, 80);
+    });
+
+    test('createImageData', () {
+      var imageData = context.createImageData(15, 15);
+      expect(imageData.width, 15);
+      expect(imageData.height, 15);
+
+      var other = context.createImageDataFromImageData(imageData);
+      expect(other.width, 15);
+      expect(other.height, 15);
+    });
+
+    test('createPattern', () {
+      var pattern = context.createPattern(new CanvasElement(), '');
+      //var pattern2 = context.createPatternFromImage(new ImageElement(), '');
+    });
+  });
+
+  group('fillText', () {
+    setUp(setupFunc);
+    tearDown(tearDownFunc);
+
+    final x = 20;
+    final y = 20;
+
+    test('without maxWidth', () {
+      context.font = '40pt Garamond';
+      context.fillStyle = 'blue';
+
+      // Draw a blue box.
+      context.fillText('█', x, y);
+
+      var width = context.measureText('█').width.ceil();
+
+      checkPixel(readPixel(x, y), [0, 0, 255, 255]);
+      checkPixel(readPixel(x + 10, y), [0, 0, 255, 255]);
+
+      expectPixelUnfilled(x - 10, y);
+      expectPixelFilled(x, y);
+      expectPixelFilled(x + 10, y);
+
+      // The box does not draw after `width` pixels.
+      // Check -2 rather than -1 because this seems
+      // to run into a rounding error on Mac bots.
+      expectPixelFilled(x + width - 2, y);
+      expectPixelUnfilled(x + width + 1, y);
+    });
+
+    test('with maxWidth null', () {
+      context.font = '40pt Garamond';
+      context.fillStyle = 'blue';
+
+      // Draw a blue box with null maxWidth.
+      context.fillText('█', x, y, null);
+
+      var width = context.measureText('█').width.ceil();
+
+      checkPixel(readPixel(x, y), [0, 0, 255, 255]);
+      checkPixel(readPixel(x + 10, y), [0, 0, 255, 255]);
+
+      expectPixelUnfilled(x - 10, y);
+      expectPixelFilled(x, y);
+      expectPixelFilled(x + 10, y);
+
+      // The box does not draw after `width` pixels.
+      // Check -2 rather than -1 because this seems
+      // to run into a rounding error on Mac bots.
+      expectPixelFilled(x + width - 2, y);
+      expectPixelUnfilled(x + width + 1, y);
+    });
+
+    test('with maxWidth defined', () {
+      context.font = '40pt Garamond';
+      context.fillStyle = 'blue';
+
+      final maxWidth = 20;
+
+      // Draw a blue box that's at most 20 pixels wide.
+      context.fillText('█', x, y, maxWidth);
+
+      checkPixel(readPixel(x, y), [0, 0, 255, 255]);
+      checkPixel(readPixel(x + 10, y), [0, 0, 255, 255]);
+
+      // The box does not draw after 20 pixels.
+      expectPixelUnfilled(x - 10, y);
+      expectPixelUnfilled(x + maxWidth + 1, y);
+      expectPixelUnfilled(x + maxWidth + 20, y);
+      expectPixelFilled(x, y);
+      expectPixelFilled(x + 10, y);
+    });
+  });
+}