modules/libpref/test/unit/test_bug345529.js

Thu, 15 Jan 2015 21:03:48 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 15 Jan 2015 21:03:48 +0100
branch
TOR_BUG_9701
changeset 11
deefc01c0e14
permissions
-rw-r--r--

Integrate friendly tips from Tor colleagues to make (or not) 4.5 alpha 3;
This includes removal of overloaded (but unused) methods, and addition of
a overlooked call to DataStruct::SetData(nsISupports, uint32_t, bool.)

     1 /* Any copyright is dedicated to the Public Domain.
     2  * http://creativecommons.org/licenses/publicdomain/  */ 
     4 // Regression test for bug 345529 - crash removing an observer during an
     5 // nsPref:changed notification.
     6 function run_test() {
     7   const Cc = Components.classes;
     8   const Ci = Components.interfaces;
     9   const PREF_NAME = "testPref";
    11   var prefs = Cc["@mozilla.org/preferences-service;1"]
    12               .getService(Ci.nsIPrefBranch);
    13   var observer = {
    14     QueryInterface: function QueryInterface(aIID) {
    15       if (aIID.equals(Ci.nsIObserver) ||
    16           aIID.equals(Ci.nsISupports))
    17          return this;
    18       throw Components.results.NS_NOINTERFACE;
    19     },
    21     observe: function observe(aSubject, aTopic, aState) {
    22       prefs.removeObserver(PREF_NAME, observer);
    23     }
    24   }
    25   prefs.addObserver(PREF_NAME, observer, false);
    27   prefs.setCharPref(PREF_NAME, "test0")
    28   // This second call isn't needed on a clean profile: it makes sure 
    29   // the observer gets called even if the pref already had the value
    30   // "test0" before this test.
    31   prefs.setCharPref(PREF_NAME, "test1")
    33   do_check_true(true);
    34 }

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