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Unified Diff: third_party/WebKit/LayoutTests/fast/canvas/canvas-ellipse-zero-lineto.html

Issue 2678493002: Use testharness.js instead of js-test.js in LayoutTests/fast/canvas tests. (Closed)
Patch Set: Addressing comments Created 3 years, 10 months ago
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Index: third_party/WebKit/LayoutTests/fast/canvas/canvas-ellipse-zero-lineto.html
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/canvas-ellipse-zero-lineto.html b/third_party/WebKit/LayoutTests/fast/canvas/canvas-ellipse-zero-lineto.html
index 631a7f955cc06fd05b6a9e1c500c0c7ac9ee4690..dcd1f8effdbe5c99932ccbcb04f42f5b4c6d6800 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/canvas-ellipse-zero-lineto.html
+++ b/third_party/WebKit/LayoutTests/fast/canvas/canvas-ellipse-zero-lineto.html
@@ -1,313 +1,312 @@
-<!DOCTYPE html>
<html>
-<head></head>
-<body>
+<head><body>
<canvas id="mycanvas" width="400" height="400"></canvas>
-<script src="../../resources/js-test.js"></script>
+<script src="../../resources/testharness.js"></script>
+<script src="../../resources/testharnessreport.js"></script>
<script>
-description("This tests checks that ellipse can draw lines correctly in edge cases.");
-var canvas = document.getElementById('mycanvas');
-var ctx = canvas.getContext('2d');
-
-var zero = 0;
-ctx.lineWidth = 5;
-ctx.fillStyle = 'rgb(255, 255, 255)';
-ctx.strokeStyle = 'rgb(0, 0, 0)';
-ctx.fillRect(0, 0, canvas.width, canvas.height);
-
-var imageData = ctx.getImageData(1, 1, 1, 1);
-var data = imageData.data;
-shouldBe("imageData.data[1]", "255");
-
-ctx.save();
-debug("moveTo + empty ellipse (swing == 0)");
-ctx.translate(0, 30);
-ctx.save();
-ctx.beginPath();
-ctx.moveTo(20, 0);
-ctx.ellipse(80, 0, 10, 20, Math.PI / 6, -Math.PI / 2, -Math.PI / 2 + zero, false);
-ctx.stroke();
-ctx.restore();
-
-imageData = ctx.getImageData(23, 29, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(85, 14, 1, 1);
-shouldBe("imageData.data[1]", "0");
-
-debug("moveTo + empty ellipse (radiusX == 0)");
-ctx.translate(0, 30);
-ctx.save();
-ctx.beginPath();
-ctx.moveTo(20, 0);
-ctx.ellipse(80, 0, zero, 20, Math.PI / 6, -Math.PI / 2, Math.PI / 2, false);
-ctx.stroke();
-ctx.restore();
-
-imageData = ctx.getImageData(22, 60, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(86, 43, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(71, 73, 1, 1);
-shouldBe("imageData.data[1]", "0");
-
-debug("moveTo + empty ellipse (radiusY == 0)");
-ctx.translate(0, 30);
-ctx.save();
-ctx.beginPath();
-ctx.moveTo(20, 0);
-ctx.ellipse(80, 0, 10, zero, Math.PI / 6, -Math.PI / 2, Math.PI / 2, false);
-ctx.stroke();
-ctx.restore();
-
-imageData = ctx.getImageData(22, 90, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(79, 90, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(87, 94, 1, 1);
-shouldBe("imageData.data[1]", "0");
-
-debug("empty ellipse (swing == 0) + lineTo");
-ctx.translate(0, 30);
-ctx.save();
-ctx.beginPath();
-ctx.ellipse(20, 0, 10, 20, Math.PI / 6, -Math.PI / 2, -Math.PI / 2 + zero, false);
-ctx.lineTo(80, 0);
-ctx.stroke();
-ctx.restore();
-
-imageData = ctx.getImageData(26, 101, 1, 1);
-shouldBe("imageData.data[1]", "255");
-imageData = ctx.getImageData(32, 103, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(77, 119, 1, 1);
-shouldBe("imageData.data[1]", "0");
-
-debug("empty ellipse (radiusX == 0) + lineTo");
-ctx.translate(0, 30);
-ctx.save();
-ctx.beginPath();
-ctx.ellipse(20, 0, zero, 20, Math.PI / 6, -Math.PI / 2, Math.PI / 2, false);
-ctx.lineTo(80, 0);
-ctx.stroke();
-ctx.restore();
-
-imageData = ctx.getImageData(28, 135, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(11, 166, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(76, 151, 1, 1);
-shouldBe("imageData.data[1]", "0");
-
-debug("empty ellipse (radiusY == 0) + lineTo");
-ctx.translate(0, 30);
-ctx.save();
-ctx.beginPath();
-ctx.ellipse(20, 0, 10, zero, Math.PI / 6, -Math.PI / 2, Math.PI / 2, false);
-ctx.lineTo(80, 0);
-ctx.stroke();
-ctx.restore();
-
-imageData = ctx.getImageData(27, 183, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(21, 179, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(77, 180, 1, 1);
-shouldBe("imageData.data[1]", "0");
-
-ctx.restore();
-
-ctx.translate(100, 0);
-ctx.save();
-debug("lineTo + empty ellipse (radiusX == 0) + lineTo");
-debug(" 1. sweepAngle < PI / 2");
-ctx.translate(0, 30);
-ctx.save();
-ctx.beginPath();
-ctx.lineTo(10, 0);
-ctx.ellipse(20, 0, zero, 20, Math.PI / 6, -Math.PI / 4, Math.PI / 4, false);
-ctx.lineTo(80, 0);
-ctx.stroke();
-ctx.restore();
-
-imageData = ctx.getImageData(110, 29, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(122, 22, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(113, 42, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(144, 38, 1, 1);
-shouldBe("imageData.data[1]", "0");
-
-debug(" 2. sweepAngle < PI");
-ctx.translate(0, 30);
-ctx.save();
-ctx.beginPath();
-ctx.lineTo(10, 0);
-ctx.ellipse(20, 0, zero, 20, Math.PI / 6, -Math.PI / 4, Math.PI / 2, false);
-ctx.lineTo(80, 0);
-ctx.stroke();
-ctx.restore();
-
-imageData = ctx.getImageData(122, 54, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(112, 76, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(142, 70, 1, 1);
-shouldBe("imageData.data[1]", "0");
-
-debug(" 3. sweepAngle < 2PI");
-ctx.translate(0, 30);
-ctx.save();
-ctx.beginPath();
-ctx.lineTo(10, 0);
-ctx.ellipse(20, 0, zero, 20, Math.PI / 6, -Math.PI / 4, Math.PI * 3 / 2, false);
-ctx.lineTo(80, 0);
-ctx.stroke();
-ctx.restore();
-
-imageData = ctx.getImageData(115, 86, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(110, 104, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(138, 77, 1, 1);
-shouldBe("imageData.data[1]", "0");
-
-debug(" 4. sweepAngle < 4PI");
-ctx.translate(0, 30);
-ctx.save();
-ctx.beginPath();
-ctx.lineTo(10, 0);
-ctx.ellipse(20, 0, zero, 20, Math.PI / 6, -Math.PI / 4, Math.PI * 2, false);
-ctx.lineTo(80, 0);
-ctx.stroke();
-ctx.restore();
-
-imageData = ctx.getImageData(115, 116, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(111, 136, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(127, 106, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(127, 121, 1, 1);
-shouldBe("imageData.data[1]", "255");
-
-debug(" 5. sweepAngle > 4PI");
-ctx.translate(0, 30);
-ctx.save();
-ctx.beginPath();
-ctx.lineTo(10, 0);
-ctx.ellipse(20, 0, zero, 20, Math.PI / 6, -Math.PI / 4, Math.PI * 16, false);
-ctx.lineTo(80, 0);
-ctx.stroke();
-ctx.restore();
-
-imageData = ctx.getImageData(115, 146, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(111, 166, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(127, 136, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(127, 151, 1, 1);
-shouldBe("imageData.data[1]", "255");
-
-ctx.restore();
-
-ctx.translate(100, 0);
-ctx.save();
-debug("lineTo + empty ellipse (radiusY == 0) + lineTo");
-debug(" 1. sweepAngle < PI / 2");
-ctx.translate(0, 30);
-ctx.save();
-ctx.beginPath();
-ctx.lineTo(10, 0);
-ctx.ellipse(20, 0, 20, zero, Math.PI / 6, -Math.PI / 4, Math.PI / 4, false);
-ctx.lineTo(80, 0);
-ctx.stroke();
-ctx.restore();
-
-imageData = ctx.getImageData(213, 32, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(234, 39, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(240, 36, 1, 1);
-shouldBe("imageData.data[1]", "0");
-
-debug(" 2. sweepAngle < PI");
-ctx.translate(0, 30);
-ctx.save();
-ctx.beginPath();
-ctx.lineTo(10, 0);
-ctx.ellipse(20, 0, 20, zero, Math.PI / 6, -Math.PI / 4, Math.PI / 2, false);
-ctx.lineTo(80, 0);
-ctx.stroke();
-ctx.restore();
-
-imageData = ctx.getImageData(232, 69, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(238, 72, 1, 1);
-shouldBe("imageData.data[1]", "255");
-imageData = ctx.getImageData(228, 65, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(242, 61, 1, 1);
-shouldBe("imageData.data[1]", "0");
-
-debug(" 3. sweepAngle < 2PI");
-ctx.translate(0, 30);
-ctx.save();
-ctx.beginPath();
-ctx.lineTo(10, 0);
-ctx.ellipse(20, 0, 20, zero, Math.PI / 6, -Math.PI / 4, Math.PI * 3 / 2, false);
-ctx.lineTo(80, 0);
-ctx.stroke();
-ctx.restore();
-
-imageData = ctx.getImageData(204, 82, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(234, 100, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(212, 92, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(240, 90, 1, 1);
-shouldBe("imageData.data[1]", "0");
-
-debug(" 4. sweepAngle < 4PI");
-ctx.translate(0, 30);
-ctx.save();
-ctx.beginPath();
-ctx.lineTo(10, 0);
-ctx.ellipse(20, 0, 20, zero, Math.PI / 6, -Math.PI / 4, Math.PI * 2, false);
-ctx.lineTo(80, 0);
-ctx.stroke();
-ctx.restore();
-
-imageData = ctx.getImageData(208, 114, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(235, 130, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(210, 120, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(252, 124, 1, 1);
-shouldBe("imageData.data[1]", "0");
-
-debug(" 5. sweepAngle > 4PI");
-ctx.translate(0, 30);
-ctx.save();
-ctx.beginPath();
-ctx.lineTo(10, 0);
-ctx.ellipse(20, 0, 20, zero, Math.PI / 6, -Math.PI / 4, Math.PI * 16, false);
-ctx.lineTo(80, 0);
-ctx.stroke();
-ctx.restore();
-
-imageData = ctx.getImageData(208, 144, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(235, 160, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(210, 150, 1, 1);
-shouldBe("imageData.data[1]", "0");
-imageData = ctx.getImageData(252, 154, 1, 1);
-shouldBe("imageData.data[1]", "0");
-
+test(function(t) {
+ var canvas = document.getElementById('mycanvas');
+ var ctx = canvas.getContext('2d');
+
+ var zero = 0;
+ ctx.lineWidth = 5;
+ ctx.fillStyle = 'rgb(255, 255, 255)';
+ ctx.strokeStyle = 'rgb(0, 0, 0)';
+ ctx.fillRect(0, 0, canvas.width, canvas.height);
+
+ var imageData = ctx.getImageData(1, 1, 1, 1);
+ var data = imageData.data;
+ assert_equals(imageData.data[1], 255);
+
+ ctx.save();
+ // moveTo + empty ellipse (swing == 0)
+ ctx.translate(0, 30);
+ ctx.save();
+ ctx.beginPath();
+ ctx.moveTo(20, 0);
+ ctx.ellipse(80, 0, 10, 20, Math.PI / 6, -Math.PI / 2, -Math.PI / 2 + zero, false);
+ ctx.stroke();
+ ctx.restore();
+
+ imageData = ctx.getImageData(23, 29, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(85, 14, 1, 1);
+ assert_equals(imageData.data[1], 0);
+
+ // moveTo + empty ellipse (radiusX == 0)
+ ctx.translate(0, 30);
+ ctx.save();
+ ctx.beginPath();
+ ctx.moveTo(20, 0);
+ ctx.ellipse(80, 0, zero, 20, Math.PI / 6, -Math.PI / 2, Math.PI / 2, false);
+ ctx.stroke();
+ ctx.restore();
+
+ imageData = ctx.getImageData(22, 60, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(86, 43, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(71, 73, 1, 1);
+ assert_equals(imageData.data[1], 0);
+
+ // moveTo + empty ellipse (radiusY == 0)
+ ctx.translate(0, 30);
+ ctx.save();
+ ctx.beginPath();
+ ctx.moveTo(20, 0);
+ ctx.ellipse(80, 0, 10, zero, Math.PI / 6, -Math.PI / 2, Math.PI / 2, false);
+ ctx.stroke();
+ ctx.restore();
+
+ imageData = ctx.getImageData(22, 90, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(79, 90, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(87, 94, 1, 1);
+ assert_equals(imageData.data[1], 0);
+
+ // empty ellipse (swing == 0) + lineTo
+ ctx.translate(0, 30);
+ ctx.save();
+ ctx.beginPath();
+ ctx.ellipse(20, 0, 10, 20, Math.PI / 6, -Math.PI / 2, -Math.PI / 2 + zero, false);
+ ctx.lineTo(80, 0);
+ ctx.stroke();
+ ctx.restore();
+
+ imageData = ctx.getImageData(26, 101, 1, 1);
+ assert_equals(imageData.data[1], 255);
+ imageData = ctx.getImageData(32, 103, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(77, 119, 1, 1);
+ assert_equals(imageData.data[1], 0);
+
+ // empty ellipse (radiusX == 0) + lineTo
+ ctx.translate(0, 30);
+ ctx.save();
+ ctx.beginPath();
+ ctx.ellipse(20, 0, zero, 20, Math.PI / 6, -Math.PI / 2, Math.PI / 2, false);
+ ctx.lineTo(80, 0);
+ ctx.stroke();
+ ctx.restore();
+
+ imageData = ctx.getImageData(28, 135, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(11, 166, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(76, 151, 1, 1);
+ assert_equals(imageData.data[1], 0);
+
+ // empty ellipse (radiusY == 0) + lineTo
+ ctx.translate(0, 30);
+ ctx.save();
+ ctx.beginPath();
+ ctx.ellipse(20, 0, 10, zero, Math.PI / 6, -Math.PI / 2, Math.PI / 2, false);
+ ctx.lineTo(80, 0);
+ ctx.stroke();
+ ctx.restore();
+
+ imageData = ctx.getImageData(27, 183, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(21, 179, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(77, 180, 1, 1);
+ assert_equals(imageData.data[1], 0);
+
+ ctx.restore();
+
+ ctx.translate(100, 0);
+ ctx.save();
+ // lineTo + empty ellipse (radiusX == 0) + lineTo
+ // 1. sweepAngle < PI / 2
+ ctx.translate(0, 30);
+ ctx.save();
+ ctx.beginPath();
+ ctx.lineTo(10, 0);
+ ctx.ellipse(20, 0, zero, 20, Math.PI / 6, -Math.PI / 4, Math.PI / 4, false);
+ ctx.lineTo(80, 0);
+ ctx.stroke();
+ ctx.restore();
+
+ imageData = ctx.getImageData(110, 29, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(122, 22, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(113, 42, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(144, 38, 1, 1);
+ assert_equals(imageData.data[1], 0);
+
+ // 2. sweepAngle < PI
+ ctx.translate(0, 30);
+ ctx.save();
+ ctx.beginPath();
+ ctx.lineTo(10, 0);
+ ctx.ellipse(20, 0, zero, 20, Math.PI / 6, -Math.PI / 4, Math.PI / 2, false);
+ ctx.lineTo(80, 0);
+ ctx.stroke();
+ ctx.restore();
+
+ imageData = ctx.getImageData(122, 54, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(112, 76, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(142, 70, 1, 1);
+ assert_equals(imageData.data[1], 0);
+
+ // 3. sweepAngle < 2PI
+ ctx.translate(0, 30);
+ ctx.save();
+ ctx.beginPath();
+ ctx.lineTo(10, 0);
+ ctx.ellipse(20, 0, zero, 20, Math.PI / 6, -Math.PI / 4, Math.PI * 3 / 2, false);
+ ctx.lineTo(80, 0);
+ ctx.stroke();
+ ctx.restore();
+
+ imageData = ctx.getImageData(115, 86, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(110, 104, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(138, 77, 1, 1);
+ assert_equals(imageData.data[1], 0);
+
+ // 4. sweepAngle < 4PI
+ ctx.translate(0, 30);
+ ctx.save();
+ ctx.beginPath();
+ ctx.lineTo(10, 0);
+ ctx.ellipse(20, 0, zero, 20, Math.PI / 6, -Math.PI / 4, Math.PI * 2, false);
+ ctx.lineTo(80, 0);
+ ctx.stroke();
+ ctx.restore();
+
+ imageData = ctx.getImageData(115, 116, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(111, 136, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(127, 106, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(127, 121, 1, 1);
+ assert_equals(imageData.data[1], 255);
+
+ // 5. sweepAngle > 4PI
+ ctx.translate(0, 30);
+ ctx.save();
+ ctx.beginPath();
+ ctx.lineTo(10, 0);
+ ctx.ellipse(20, 0, zero, 20, Math.PI / 6, -Math.PI / 4, Math.PI * 16, false);
+ ctx.lineTo(80, 0);
+ ctx.stroke();
+ ctx.restore();
+
+ imageData = ctx.getImageData(115, 146, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(111, 166, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(127, 136, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(127, 151, 1, 1);
+ assert_equals(imageData.data[1], 255);
+
+ ctx.restore();
+
+ ctx.translate(100, 0);
+ ctx.save();
+ // lineTo + empty ellipse (radiusY == 0) + lineTo
+ // 1. sweepAngle < PI / 2
+ ctx.translate(0, 30);
+ ctx.save();
+ ctx.beginPath();
+ ctx.lineTo(10, 0);
+ ctx.ellipse(20, 0, 20, zero, Math.PI / 6, -Math.PI / 4, Math.PI / 4, false);
+ ctx.lineTo(80, 0);
+ ctx.stroke();
+ ctx.restore();
+
+ imageData = ctx.getImageData(213, 32, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(234, 39, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(240, 36, 1, 1);
+ assert_equals(imageData.data[1], 0);
+
+ // 2. sweepAngle < PI
+ ctx.translate(0, 30);
+ ctx.save();
+ ctx.beginPath();
+ ctx.lineTo(10, 0);
+ ctx.ellipse(20, 0, 20, zero, Math.PI / 6, -Math.PI / 4, Math.PI / 2, false);
+ ctx.lineTo(80, 0);
+ ctx.stroke();
+ ctx.restore();
+
+ imageData = ctx.getImageData(232, 69, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(238, 72, 1, 1);
+ assert_equals(imageData.data[1], 255);
+ imageData = ctx.getImageData(228, 65, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(242, 61, 1, 1);
+ assert_equals(imageData.data[1], 0);
+
+ // 3. sweepAngle < 2PI
+ ctx.translate(0, 30);
+ ctx.save();
+ ctx.beginPath();
+ ctx.lineTo(10, 0);
+ ctx.ellipse(20, 0, 20, zero, Math.PI / 6, -Math.PI / 4, Math.PI * 3 / 2, false);
+ ctx.lineTo(80, 0);
+ ctx.stroke();
+ ctx.restore();
+
+ imageData = ctx.getImageData(204, 82, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(234, 100, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(212, 92, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(240, 90, 1, 1);
+ assert_equals(imageData.data[1], 0);
+
+ // 4. sweepAngle < 4PI
+ ctx.translate(0, 30);
+ ctx.save();
+ ctx.beginPath();
+ ctx.lineTo(10, 0);
+ ctx.ellipse(20, 0, 20, zero, Math.PI / 6, -Math.PI / 4, Math.PI * 2, false);
+ ctx.lineTo(80, 0);
+ ctx.stroke();
+ ctx.restore();
+
+ imageData = ctx.getImageData(208, 114, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(235, 130, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(210, 120, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(252, 124, 1, 1);
+ assert_equals(imageData.data[1], 0);
+
+ // 5. sweepAngle > 4PI
+ ctx.translate(0, 30);
+ ctx.save();
+ ctx.beginPath();
+ ctx.lineTo(10, 0);
+ ctx.ellipse(20, 0, 20, zero, Math.PI / 6, -Math.PI / 4, Math.PI * 16, false);
+ ctx.lineTo(80, 0);
+ ctx.stroke();
+ ctx.restore();
+
+ imageData = ctx.getImageData(208, 144, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(235, 160, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(210, 150, 1, 1);
+ assert_equals(imageData.data[1], 0);
+ imageData = ctx.getImageData(252, 154, 1, 1);
+ assert_equals(imageData.data[1], 0);
+}, 'This tests checks that ellipse can draw lines correctly in edge cases.');
</script>
</body>
</html>
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