1 files changed, 21 insertions, 0 deletions
diff --git a/dom/canvas/test/reftest/filters/global-composite-operation.html b/dom/canvas/test/reftest/filters/global-composite-operation.html
new file mode 100644
index 0000000000..61a6f206a3
--- /dev/null
+++ b/dom/canvas/test/reftest/filters/global-composite-operation.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html>
+<body>
+<canvas id="canvas" width="100" height="100"></canvas>
+<script>
+
+var canvas = document.getElementById('canvas');
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#000';
+ctx.arc(50, 50, 25, 0, Math.PI * 2, true);
+ctx.fill();
+
+ctx.filter = 'drop-shadow(0 10px black)';
+ctx.globalCompositeOperation = 'source-in';
+ctx.fillStyle = '#0f0';
+ctx.fillRect(25, 25, 50, 40);
+
+</script>
+</body>
+</html>