1 files changed, 51 insertions, 0 deletions
diff --git a/dom/base/test/chrome/test_bug780199.xhtml b/dom/base/test/chrome/test_bug780199.xhtml
new file mode 100644
index 0000000000..e27afb72fa
--- /dev/null
+++ b/dom/base/test/chrome/test_bug780199.xhtml
@@ -0,0 +1,51 @@
+<?xml version="1.0"?>
+<?xml-stylesheet type="text/css" href="chrome://global/skin"?>
+<?xml-stylesheet type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=780199
+-->
+<window title="Mozilla Bug 780199"
+        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+        onload="test()">
+  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
+
+  <!-- test results are displayed in the html:body -->
+  <body xmlns="http://www.w3.org/1999/xhtml">
+  <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=780199"
+     target="_blank">Mozilla Bug 780199</a>
+  </body>
+
+  <!-- test code goes here -->
+  <script type="application/javascript">
+  <![CDATA[
+
+  /** Test for Bug 780199 **/
+
+  SimpleTest.waitForExplicitFinish();
+
+  var b;
+
+  function callback(r) {
+    is(r[0].type, "attributes");
+    is(r[0].oldValue, b.getAttribute("src"));
+    setTimeout(continueTest, 500);
+  }
+
+  function continueTest() {
+    // Check that a new page wasn't loaded.
+    is(b.contentDocument.documentElement.textContent, "testvalue");
+    SimpleTest.finish();
+  }
+
+  function test() {
+    b = document.getElementById("b");
+    var m = new MutationObserver(callback);
+    m.observe(b, { attributes: true, attributeOldValue: true });
+    b.contentDocument.documentElement.textContent = "testvalue";
+    b.setAttribute("src", b.getAttribute("src"));
+  }
+
+  ]]>
+  </script>
+  <browser id="b" src="data:text/plain,initial"/>
+</window>