michael@0: /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim:set ts=2 sw=2 sts=2 et: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: const NS_PLACES_INIT_COMPLETE_TOPIC = "places-init-complete";
michael@0: const NS_PLACES_DATABASE_LOCKED_TOPIC = "places-database-locked";
michael@0: 
michael@0: function run_test() {
michael@0:   do_test_pending();
michael@0: 
michael@0:   // Create an observer for the Places notifications
michael@0:   var os = Cc["@mozilla.org/observer-service;1"].
michael@0:          getService(Ci.nsIObserverService);
michael@0:   var observer = {
michael@0:     _lockedNotificationReceived: false,
michael@0:     observe: function thn_observe(aSubject, aTopic, aData)
michael@0:     {
michael@0:       switch (aTopic) {
michael@0:         case NS_PLACES_INIT_COMPLETE_TOPIC:
michael@0:           do_check_true(this._lockedNotificationReceived);
michael@0:           os.removeObserver(this, NS_PLACES_INIT_COMPLETE_TOPIC);
michael@0:           os.removeObserver(this, NS_PLACES_DATABASE_LOCKED_TOPIC);
michael@0:           do_test_finished();
michael@0:           break;
michael@0:         case NS_PLACES_DATABASE_LOCKED_TOPIC:
michael@0:           if (this._lockedNotificationReceived)
michael@0:             do_throw("Locked notification should be observed only one time");
michael@0:           this._lockedNotificationReceived = true;
michael@0:           break;
michael@0:       }
michael@0:     }
michael@0:   };
michael@0:   os.addObserver(observer, NS_PLACES_INIT_COMPLETE_TOPIC, false);
michael@0:   os.addObserver(observer, NS_PLACES_DATABASE_LOCKED_TOPIC, false);
michael@0: 
michael@0:   // Create a dummy places.sqlite and open an unshared connection on it
michael@0:   var dirSvc = Cc["@mozilla.org/file/directory_service;1"].
michael@0:                getService(Ci.nsIProperties);
michael@0:   var db = dirSvc.get('ProfD', Ci.nsIFile);
michael@0:   db.append("places.sqlite");
michael@0:   var storage = Cc["@mozilla.org/storage/service;1"].
michael@0:                 getService(Ci.mozIStorageService);
michael@0:   var dbConn = storage.openUnsharedDatabase(db);
michael@0:   do_check_true(db.exists());
michael@0: 
michael@0:   // We need an exclusive lock on the db
michael@0:   dbConn.executeSimpleSQL("PRAGMA locking_mode = EXCLUSIVE");
michael@0:   // Exclusive locking is lazy applied, we need to make a write to activate it
michael@0:   dbConn.executeSimpleSQL("PRAGMA USER_VERSION = 1");
michael@0: 
michael@0:   // Try to create history service while the db is locked
michael@0:   try {
michael@0:     var hs1 = Cc["@mozilla.org/browser/nav-history-service;1"].
michael@0:               getService(Ci.nsINavHistoryService);
michael@0:     do_throw("Creating an instance of history service on a locked db should throw");
michael@0:   } catch (ex) {}
michael@0: 
michael@0:   // Close our connection and try to cleanup the file (could fail on Windows)
michael@0:   dbConn.close();
michael@0:   if (db.exists()) {
michael@0:     try {
michael@0:       db.remove(false);
michael@0:     } catch(e) { dump("Unable to remove dummy places.sqlite"); }
michael@0:   }
michael@0: 
michael@0:   // Create history service correctly
michael@0:   try {
michael@0:     var hs2 = Cc["@mozilla.org/browser/nav-history-service;1"].
michael@0:               getService(Ci.nsINavHistoryService);
michael@0:   } catch (ex) {
michael@0:     do_throw("Creating an instance of history service on a not locked db should not throw");
michael@0:   }
michael@0: }