1 files changed, 34 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.rows.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.rows.html
new file mode 100644
index 0000000000..6d8ee2eba5
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.rows.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.get.order.rows</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.get.order.rows</h1>
+<p class="desc">getImageData() returns topmost rows first</p>
+
+
+<script>
+var t = async_test("getImageData() returns topmost rows first");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+    throw reason;
+});
+t.step(function() {
+
+  var canvas = new OffscreenCanvas(100, 50);
+  var ctx = canvas.getContext('2d');
+
+  ctx.fillStyle = '#fff';
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.fillStyle = '#000';
+  ctx.fillRect(0, 0, 100, 2);
+  var imgdata = ctx.getImageData(0, 0, 10, 10);
+  _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+  _assertSame(imgdata.data[Math.floor(imgdata.width/2*4)], 0, "imgdata.data[Math.floor(imgdata.width/2*4)]", "0");
+  _assertSame(imgdata.data[(imgdata.height/2)*imgdata.width*4], 255, "imgdata.data[(imgdata.height/2)*imgdata.width*4]", "255");
+  t.done();
+
+});
+</script>