--- a/dom/media/test/test_playback.html
+++ b/dom/media/test/test_playback.html
@@ -34,16 +34,20 @@ function startTest(test, token) {
     is(test.name, v.name, test.name + ": Name should match #1");
     checkMetadata(test.name, v, test);
   }}(test, v);
 
   var noLoad = function(test, v) { return function() {
     ok(false, test.name + " should not fire 'load' event");
   }}(test, v);
 
+  var noError = function(test, v) { return function() {
+    ok(false, test.name + " should not fire 'error' event " + v.error.message);
+  }}(test, v);
+
   var finish = function() {
     v.finished = true;
     v.removeEventListener("timeupdate", timeUpdate);
     removeNodeAndSource(v);
     manager.finished(v.token);
   }
 
   // We should get "ended" and "suspend" events to finish the test.
@@ -79,16 +83,17 @@ function startTest(test, token) {
     if (v.prevTime > v.currentTime) {
       ok(false, test.name + " time should run forwards: p=" +
                 v.prevTime + " c=" + v.currentTime);
     }
     v.prevTime = v.currentTime;
   }}(test, v);
 
   v.addEventListener("load", noLoad);
+  v.addEventListener("error", noError);
   v.addEventListener("loadedmetadata", check);
   v.addEventListener("timeupdate", timeUpdate);
 
   // We should get "ended" and "suspend" events for every resource
   v.addEventListener("ended", checkEnded);
   v.addEventListener("suspend", checkSuspended);
 
   document.body.appendChild(v);