1 files changed, 55 insertions, 0 deletions
diff --git a/widget/tests/test_bug538242.xhtml b/widget/tests/test_bug538242.xhtml
new file mode 100644
index 0000000000..4608a74e35
--- /dev/null
+++ b/widget/tests/test_bug538242.xhtml
@@ -0,0 +1,55 @@
+<?xml version="1.0"?>
+<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
+<?xml-stylesheet href="chrome://mochikit/content/tests/SimpleTest/test.css"
+                 type="text/css"?>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=538242
+-->
+<window title="Mozilla Bug 538242"
+  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+
+  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js" />
+
+<body  xmlns="http://www.w3.org/1999/xhtml">
+<div id="content" style="display: none">
+  
+</div>
+<pre id="test">
+</pre>
+</body>
+
+<script class="testbody" type="application/javascript">
+<![CDATA[
+
+if (navigator.platform.startsWith("Win")) {
+  SimpleTest.expectAssertions(0, 1);
+}
+
+SimpleTest.waitForExplicitFinish();
+
+SimpleTest.waitForFocus(function () {
+  if (navigator.platform.includes("Lin")) {
+    ok(true, "This test is disabled on Linux because it expects moving windows to be synchronous which is not guaranteed on Linux.");
+    SimpleTest.finish();
+    return;
+  }
+
+  var win = window.browsingContext.topChromeWindow.open(
+      "window_bug538242.xhtml", "_blank", 
+      "chrome,width=400,height=300,left=100,top=100");
+  SimpleTest.waitForFocus(function () {
+    is(win.screenX, 100, "window should open at 100, 100");
+    is(win.screenY, 100, "window should open at 100, 100");
+    var [oldX, oldY] = [win.screenX, win.screenY];
+    win.moveTo(0, 0);
+    isnot(win.screenX, oldX, "window should have moved to a point near 0, 0");
+    isnot(win.screenY, oldY, "window should have moved to a point near 0, 0");
+    win.close();
+    SimpleTest.finish();
+  }, win);
+});
+
+]]>
+</script>
+
+</window>