modules/libpref/test/unit/test_bug790374.js

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/modules/libpref/test/unit/test_bug790374.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,55 @@
     1.4 +/* Any copyright is dedicated to the Public Domain.
     1.5 + * http://creativecommons.org/licenses/publicdomain/  */
     1.6 +
     1.7 +function run_test() {
     1.8 +  const Cc = Components.classes;
     1.9 +  const Ci = Components.interfaces;
    1.10 +  const Cr = Components.results;
    1.11 +  const PREF_NAME = "testPref";
    1.12 +
    1.13 +  var ps = Cc["@mozilla.org/preferences-service;1"]
    1.14 +           .getService(Ci.nsIPrefService);
    1.15 +  var prefs = ps.getDefaultBranch(null);
    1.16 +  var userprefs = ps.getBranch(null);
    1.17 +
    1.18 +  /* First, test to make sure we can parse a float from a string properly. */
    1.19 +  prefs.setCharPref(PREF_NAME, "9.674");
    1.20 +  prefs.lockPref(PREF_NAME);
    1.21 +  var myFloat = 9.674;
    1.22 +  var fudge = 0.001;
    1.23 +  var floatPref = userprefs.getFloatPref(PREF_NAME);
    1.24 +  do_check_true(myFloat+fudge >= floatPref);
    1.25 +  do_check_true(myFloat-fudge <= floatPref);
    1.26 +
    1.27 +  /* Now test some failure conditions. */
    1.28 +  prefs.unlockPref(PREF_NAME);
    1.29 +  prefs.setCharPref(PREF_NAME, "");
    1.30 +  prefs.lockPref(PREF_NAME);
    1.31 +  do_check_throws(function() {
    1.32 +    userprefs.getFloatPref(PREF_NAME);
    1.33 +  }, Cr.NS_ERROR_ILLEGAL_VALUE);
    1.34 +
    1.35 +  prefs.unlockPref(PREF_NAME);
    1.36 +  prefs.setCharPref(PREF_NAME, "18.0a1");
    1.37 +  prefs.lockPref(PREF_NAME);
    1.38 +
    1.39 +  do_check_throws(function() {
    1.40 +    userprefs.getFloatPref(PREF_NAME);
    1.41 +  }, Cr.NS_ERROR_ILLEGAL_VALUE);
    1.42 +
    1.43 +  prefs.unlockPref(PREF_NAME);
    1.44 +  prefs.setCharPref(PREF_NAME, "09.25.2012");
    1.45 +  prefs.lockPref(PREF_NAME);
    1.46 +
    1.47 +  do_check_throws(function() {
    1.48 +    userprefs.getFloatPref(PREF_NAME);
    1.49 +  }, Cr.NS_ERROR_ILLEGAL_VALUE);
    1.50 +
    1.51 +  prefs.unlockPref(PREF_NAME);
    1.52 +  prefs.setCharPref(PREF_NAME, "aString");
    1.53 +  prefs.lockPref(PREF_NAME);
    1.54 +
    1.55 +  do_check_throws(function() {
    1.56 +    userprefs.getFloatPref(PREF_NAME);
    1.57 +  }, Cr.NS_ERROR_ILLEGAL_VALUE);
    1.58 +}

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