1 files changed, 68 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/element/line-styles/2d.line.width.transformed.html b/testing/web-platform/tests/html/canvas/element/line-styles/2d.line.width.transformed.html
new file mode 100644
index 0000000000..600ce93fb7
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/element/line-styles/2d.line.width.transformed.html
@@ -0,0 +1,68 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>Canvas test: 2d.line.width.transformed</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+<link rel="stylesheet" href="/html/canvas/resources/canvas-tests.css">
+<body class="show_output">
+
+<h1>2d.line.width.transformed</h1>
+<p class="desc">Line stroke widths are affected by scale transformations</p>
+
+
+<p class="output">Actual output:</p>
+<canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
+<p class="output expectedtext">Expected output:<p><img src="/images/green-100x50.png" class="output expected" id="expected" alt="">
+<ul id="d"></ul>
+<script>
+var t = async_test("Line stroke widths are affected by scale transformations");
+_addTest(function(canvas, ctx) {
+
+  ctx.fillStyle = '#0f0';
+  ctx.fillRect(0, 0, 100, 50);
+
+  ctx.lineWidth = 4;
+  // Draw a green line over a red box, to check the line is not too small
+  ctx.fillStyle = '#f00';
+  ctx.strokeStyle = '#0f0';
+  ctx.fillRect(15, 15, 20, 20);
+  ctx.save();
+   ctx.scale(5, 1);
+   ctx.beginPath();
+   ctx.moveTo(5, 15);
+   ctx.lineTo(5, 35);
+   ctx.stroke();
+  ctx.restore();
+
+  // Draw a green box over a red line, to check the line is not too large
+  ctx.fillStyle = '#0f0';
+  ctx.strokeStyle = '#f00';
+  ctx.save();
+   ctx.scale(-5, 1);
+   ctx.beginPath();
+   ctx.moveTo(-15, 15);
+   ctx.lineTo(-15, 35);
+   ctx.stroke();
+  ctx.restore();
+  ctx.fillRect(65, 15, 20, 20);
+
+  _assertPixel(canvas, 14,25, 0,255,0,255);
+  _assertPixel(canvas, 15,25, 0,255,0,255);
+  _assertPixel(canvas, 16,25, 0,255,0,255);
+  _assertPixel(canvas, 25,25, 0,255,0,255);
+  _assertPixel(canvas, 34,25, 0,255,0,255);
+  _assertPixel(canvas, 35,25, 0,255,0,255);
+  _assertPixel(canvas, 36,25, 0,255,0,255);
+
+  _assertPixel(canvas, 64,25, 0,255,0,255);
+  _assertPixel(canvas, 65,25, 0,255,0,255);
+  _assertPixel(canvas, 66,25, 0,255,0,255);
+  _assertPixel(canvas, 75,25, 0,255,0,255);
+  _assertPixel(canvas, 84,25, 0,255,0,255);
+  _assertPixel(canvas, 85,25, 0,255,0,255);
+  _assertPixel(canvas, 86,25, 0,255,0,255);
+
+});
+</script>
+