Bug 1008481 - Add an expected assertion. r=me

caps/tests/mochitest/test_bug995943.xul

@@ -26,6 +26,8 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=995943
   /** Test for CAPS file:// URI prefs. **/
   SimpleTest.waitForExplicitFinish();
   SimpleTest.requestCompleteLog();
+  if (Services.appinfo.OS == "Darwin") // See bug 1067022
+    SimpleTest.expectAssertions(0, 1);
 
   var profileDir = "file://" + Cc["@mozilla.org/file/directory_service;1"]
                                .getService(Ci.nsIProperties)