gecko-dev/modules/libpref/test/unit/test_bug577950.js
2012-05-21 12:12:37 +01:00

29 lines
943 B
JavaScript

/* 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 run_test() {
var ps = Cc["@mozilla.org/preferences-service;1"].
getService(Ci.nsIPrefService);
var pb = Cc["@mozilla.org/preferences-service;1"].
getService(Ci.nsIPrefBranch);
var observer = {
QueryInterface: function QueryInterface(aIID) {
if (aIID.equals(Ci.nsIObserver) ||
aIID.equals(Ci.nsISupports))
return this;
throw Components.results.NS_NOINTERFACE;
},
observe: function observe(aSubject, aTopic, aState) {
// Don't do anything.
}
}
/* Set the same pref twice. This shouldn't leak. */
pb.addObserver("UserPref.nonexistent.setIntPref", observer, false);
pb.addObserver("UserPref.nonexistent.setIntPref", observer, false);
}