diff -r 000000000000 -r 6474c204b198 content/test/unit/test_xml_parser.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/content/test/unit/test_xml_parser.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,48 @@
+function run_test () {
+  for (var i = 0; i < tests.length && tests[i][0]; ++i) {
+    if (!tests[i][0].call()) {
+      do_throw(tests[i][1]);
+    }
+  }
+}
+
+var tests = [
+  [ test1, "Unable to parse basic XML document" ],
+  [ test2, "ParseXML doesn't return nsIDOMDocument" ],
+  [ test3, "ParseXML return value's documentElement is not nsIDOMElement" ],
+  [ test4, "" ],
+  [ test5, "" ],
+  [ test6, "" ],
+  [ null ]
+];
+
+function test1() {
+  return ParseXML("<root/>");
+}
+
+function test2() {
+  return (ParseXML("<root/>") instanceof nsIDOMDocument);
+}
+
+function test3() {
+  return (ParseXML("<root/>").documentElement instanceof nsIDOMElement);
+}
+
+function test4() {
+  var doc = ParseXML("<root/>");
+  do_check_eq(doc.documentElement.namespaceURI, null); 
+  return true;
+}
+
+function test5() {
+  var doc = ParseXML("<root xmlns=''/>");
+  do_check_eq(doc.documentElement.namespaceURI, null); 
+  return true;
+}
+
+function test6() {
+  var doc = ParseXML("<root xmlns='ns1'/>");
+  do_check_neq(doc.documentElement.namespaceURI, null); 
+  do_check_eq(doc.documentElement.namespaceURI, 'ns1'); 
+  return true;
+}