1 files changed, 32 insertions, 0 deletions
diff --git a/dom/canvas/test/reftest/1719886-1.html b/dom/canvas/test/reftest/1719886-1.html
new file mode 100644
index 0000000000..7a0c0f7ea4
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+++ b/dom/canvas/test/reftest/1719886-1.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html>
+<body>
+Pattern Canvas<br>
+<canvas id="patternCanvas" style="border: 1px solid black" width="10" height="10"></canvas><br>
+Main Canvas (red square should be in top-left corner)<br>
+<canvas id="canvas" style="border: 1px solid black" width="100" height="100"></canvas>
+<script>
+
+// Draw a 10x10 red rectangle that will be used for the pattern.
+const patternCanvas = document.getElementById("patternCanvas");
+const patternCtx = patternCanvas.getContext("2d");
+patternCtx.fillStyle = "red";
+patternCtx.fillRect(0, 0, patternCanvas.width, patternCanvas.height);
+
+const canvas = document.getElementById("canvas");
+const ctx = canvas.getContext("2d");
+const height = 100;
+ctx.translate(0, height);
+
+const pattern = ctx.createPattern(patternCanvas, "no-repeat");
+// Reverse translation applied to the canvas.
+pattern.setTransform((new DOMMatrix()).translate(0, -height));
+
+ctx.fillStyle = pattern;
+// Fill the entire canvas with the pattern.
+ctx.fillRect(0, -height, 100, 100);
+
+</script>
+
+</body>
+</html>
+\ No newline at end of file