import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

toolkit/content/tests/chrome/test_bug554279.xul

@@ -0,0 +1,39 @@
+<?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"?>
+
+<window title="Toolbar" xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+        onload="startTest();">
+
+  <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+
+  <toolbox>
+    <toolbarpalette id="palette"/>
+
+    <toolbar id="tb1" currentset="p1"/>
+  </toolbox>
+
+  <!-- test resuls are displayed in the html:body -->
+  <body xmlns="http://www.w3.org/1999/xhtml"
+        style="height: 300px; overflow: auto;"/>
+  
+  <!-- test code goes here -->
+  <script type="text/javascript"><![CDATA[
+    var toolbar = $("tb1");
+
+    ok(toolbar, "got the toolbar, triggering the xbl constructor");
+
+    var palette = $("palette");
+    ok(palette, "palette is still in the document");
+
+    var button = document.createElement("p1");
+    button.id = button.label = "p1";
+    palette.appendChild(button);
+
+    SimpleTest.waitForExplicitFinish();
+    function startTest() {
+      is(button.parentNode, toolbar, "button has been added to the toolbar");
+      SimpleTest.finish();
+    }
+  ]]></script>
+</window>