1 files changed, 58 insertions, 0 deletions
diff --git a/dom/media/test/test_background_video_tainted_by_drawimage.html b/dom/media/test/test_background_video_tainted_by_drawimage.html
new file mode 100644
index 0000000000..d5b8c75f3d
--- /dev/null
+++ b/dom/media/test/test_background_video_tainted_by_drawimage.html
@@ -0,0 +1,58 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>Test Background Video Is Tainted By drawImage</title>
+<script src="/tests/SimpleTest/SimpleTest.js"></script>
+<script src="manifest.js"></script>
+<script src="background_video.js"></script>
+<link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
+<script type="text/javascript">
+"use strict";
+
+var manager = new MediaTestManager;
+
+function drawVideoToCanvas(v) {
+  let w = v.width,
+      h = v.height,
+      c = document.createElement('canvas');
+  c.width = w;
+  c.height = h;
+  document.body.appendChild(c);
+
+  let gfx = c.getContext('2d');
+  if (!gfx) {
+    throw Error("Unable to obtain context '2d' from canvas");
+  }
+
+  gfx.drawImage(v, 0, 0, w, h);
+}
+
+startTest({
+  desc: 'Test Background Video Is Tainted By drawImage',
+  prefs: [
+    [ "media.test.video-suspend", true ],
+    [ "media.suspend-bkgnd-video.enabled", true ],
+    [ "media.suspend-bkgnd-video.delay-ms", 1000 ]
+  ],
+  tests: gDecodeSuspendTests,
+  runTest: (test, token) => {
+    ok(true, `${test.name}`);
+    let v = appendVideoToDoc(test.name, token);
+    manager.started(token);
+
+    waitUntilPlaying(v)
+      .then(() => {
+        drawVideoToCanvas(v);
+        ok(v.hasSuspendTaint(), "Video is tainted after drawing to canvas");
+        return checkVideoDoesntSuspend(v);
+      })
+      .then(() => {
+        ok(true, 'Video ended before decode was suspended');
+        manager.finished(token);
+      })
+      .catch((e) => {
+        ok(false, 'Test failed: ' + e.toString());
+        manager.finished(token);
+      });
+  }
+});
+</script>
+\ No newline at end of file