The Tor Browser / file comparison
comparison: modules/libpref/test/unit/test_bug345529.js
modules/libpref/test/unit/test_bug345529.js
- changeset 0
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| 1 /* Any copyright is dedicated to the Public Domain. | |
| 2 * http://creativecommons.org/licenses/publicdomain/ */ | |
| 3 | |
| 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"; | |
| 10 | |
| 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 }, | |
| 20 | |
| 21 observe: function observe(aSubject, aTopic, aState) { | |
| 22 prefs.removeObserver(PREF_NAME, observer); | |
| 23 } | |
| 24 } | |
| 25 prefs.addObserver(PREF_NAME, observer, false); | |
| 26 | |
| 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") | |
| 32 | |
| 33 do_check_true(true); | |
| 34 } |
