replaced setTimeout with event subscription/handler

resources/static/test/cases/common/js/error-display.js

@@ -3,11 +3,11 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
 (function() {
   "use strict";
 
-  var bid = BrowserID,
-      errorDisplay = bid.ErrorDisplay;
+  var bid = BrowserID;
 
   module("shared/error-display", {
     setup: function() {
@@ -18,17 +18,20 @@
     }
   });
 
-  asyncTest("can initialize and open the error display", function() {
+  asyncTest("can initialize and open the error display", function openErrorDisplay() {
+    bid.DOM.bindEvent(window, "resize", resized_once);
+
     $("#error").show();
     bid.ErrorDisplay.start("#error");
     bid.ErrorDisplay.open();
 
-    setTimeout(function() {
+    function resized_once(event) {
+      bid.DOM.unbindEvent(window, "resize", resized_once);
       ok($("#moreInfo").is(":visible"), "expanded info is visible");
       start();
-    }, 100);
-  });
+    }
 
+  });
 
 
 }());