modules/libpref/test/unit/test_bug345529.js@6474c204b198 (annotated)
modules/libpref/test/unit/test_bug345529.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* Any copyright is dedicated to the Public Domain. |
| michael@0 | 2 | * http://creativecommons.org/licenses/publicdomain/ */ |
| michael@0 | 3 | |
| michael@0 | 4 | // Regression test for bug 345529 - crash removing an observer during an |
| michael@0 | 5 | // nsPref:changed notification. |
| michael@0 | 6 | function run_test() { |
| michael@0 | 7 | const Cc = Components.classes; |
| michael@0 | 8 | const Ci = Components.interfaces; |
| michael@0 | 9 | const PREF_NAME = "testPref"; |
| michael@0 | 10 | |
| michael@0 | 11 | var prefs = Cc["@mozilla.org/preferences-service;1"] |
| michael@0 | 12 | .getService(Ci.nsIPrefBranch); |
| michael@0 | 13 | var observer = { |
| michael@0 | 14 | QueryInterface: function QueryInterface(aIID) { |
| michael@0 | 15 | if (aIID.equals(Ci.nsIObserver) || |
| michael@0 | 16 | aIID.equals(Ci.nsISupports)) |
| michael@0 | 17 | return this; |
| michael@0 | 18 | throw Components.results.NS_NOINTERFACE; |
| michael@0 | 19 | }, |
| michael@0 | 20 | |
| michael@0 | 21 | observe: function observe(aSubject, aTopic, aState) { |
| michael@0 | 22 | prefs.removeObserver(PREF_NAME, observer); |
| michael@0 | 23 | } |
| michael@0 | 24 | } |
| michael@0 | 25 | prefs.addObserver(PREF_NAME, observer, false); |
| michael@0 | 26 | |
| michael@0 | 27 | prefs.setCharPref(PREF_NAME, "test0") |
| michael@0 | 28 | // This second call isn't needed on a clean profile: it makes sure |
| michael@0 | 29 | // the observer gets called even if the pref already had the value |
| michael@0 | 30 | // "test0" before this test. |
| michael@0 | 31 | prefs.setCharPref(PREF_NAME, "test1") |
| michael@0 | 32 | |
| michael@0 | 33 | do_check_true(true); |
| michael@0 | 34 | } |
