1 files changed, 31 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/webappapis/animation-frames/same-dispatch-time.html b/testing/web-platform/tests/html/webappapis/animation-frames/same-dispatch-time.html
new file mode 100644
index 0000000000..28e94f1e33
--- /dev/null
+++ b/testing/web-platform/tests/html/webappapis/animation-frames/same-dispatch-time.html
@@ -0,0 +1,31 @@
+<!doctype html>
+<html>
+  <head>
+    <title>requestAnimationFrame in queue get the same timestamp</title>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <link rel="help" href="http://w3c.github.io/animation-timing/#dfn-invoke-callbacks-algorithm"/>
+  </head>
+  <body>
+    <div id="log"></div>
+    <script>
+      async_test(function (t) {
+        var a = 0, b = 0;
+
+        /* REASONING:
+        * These two methods that will be called with a timestamp. Because
+        * they execute right after eachother, they're added to the same
+        * queue and SHOULD be timestamped with the same value.
+        */
+        requestAnimationFrame(t.step_func(function() { a = arguments[0]; }));
+        requestAnimationFrame(t.step_func(function() {
+          b = arguments[0];
+          assert_not_equals(a, 0);
+          assert_not_equals(b, 0);
+          assert_equals(a, b);
+          t.done();
+        }));
+      }, "requestAnimationFrame will timestamp events in the same queue with the same time");
+    </script>
+  </body>
+</html>