1 files changed, 49 insertions, 0 deletions
diff --git a/layout/style/test/test_transitions_and_zoom.html b/layout/style/test/test_transitions_and_zoom.html
new file mode 100644
index 0000000000..e95581be32
--- /dev/null
+++ b/layout/style/test/test_transitions_and_zoom.html
@@ -0,0 +1,49 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=583219
+-->
+<head>
+  <title>Test for Bug 583219</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <style type="text/css">
+
+  #display {
+    transition: margin-left 1s linear;
+  }
+
+  </style>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=583219">Mozilla Bug 583219</a>
+<p id="display"></p>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for Bug 583219 **/
+
+var p = document.getElementById("display");
+var cs = getComputedStyle(p, "");
+cs.marginLeft;
+
+p.addEventListener("transitionend", TransitionEndHandler);
+p.style.marginLeft = "100px";
+cs.marginLeft;
+
+SpecialPowers.setFullZoom(window, 2.0)
+
+SimpleTest.waitForExplicitFinish();
+
+function TransitionEndHandler(event) {
+  ok(true, "transition has completed");
+  is(event.propertyName, "margin-left", "event.propertyName");
+  is(cs.marginLeft, "100px", "value of margin-left");
+  SpecialPowers.setFullZoom(window, 1.0)
+  SimpleTest.finish();
+}
+
+</script>
+</pre>
+</body>
+</html>