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Bug 1338306 - nsIPrefBranch.get*Pref should support providing a default value, r=bsmedberg.

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This commit is contained in:
Florian Quèze 2019-03-23 10:02:03 -04:00 • committed by Roy Tam
commit a85e8de713
4 changed files with 126 additions and 4 deletions
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48
modules/libpref/test/unit/test_defaultValues.js Normal file
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@ -0,0 +1,48 @@
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* Tests for providing a default value to get{Bool,Char,Float,Int}Pref */
function run_test() {
var ps = Cc["@mozilla.org/preferences-service;1"]
.getService(Ci.nsIPrefService)
.QueryInterface(Ci.nsIPrefBranch);
let prefName = "test.default.values.bool";
do_check_throws(function() { ps.getBoolPref(prefName); },
Cr.NS_ERROR_UNEXPECTED);
strictEqual(ps.getBoolPref(prefName, false), false);
strictEqual(ps.getBoolPref(prefName, true), true);
ps.setBoolPref(prefName, true);
strictEqual(ps.getBoolPref(prefName), true);
strictEqual(ps.getBoolPref(prefName, false), true);
strictEqual(ps.getBoolPref(prefName, true), true);
prefName = "test.default.values.char";
do_check_throws(function() { ps.getCharPref(prefName); },
Cr.NS_ERROR_UNEXPECTED);
strictEqual(ps.getCharPref(prefName, ""), "");
strictEqual(ps.getCharPref(prefName, "string"), "string");
ps.setCharPref(prefName, "foo");
strictEqual(ps.getCharPref(prefName), "foo");
strictEqual(ps.getCharPref(prefName, "string"), "foo");
prefName = "test.default.values.float";
do_check_throws(function() { ps.getFloatPref(prefName); },
Cr.NS_ERROR_UNEXPECTED);
strictEqual(ps.getFloatPref(prefName, 3.5), 3.5);
strictEqual(ps.getFloatPref(prefName, 0), 0);
ps.setCharPref(prefName, 1.75);
strictEqual(ps.getFloatPref(prefName), 1.75);
strictEqual(ps.getFloatPref(prefName, 3.5), 1.75);
prefName = "test.default.values.int";
do_check_throws(function() { ps.getIntPref(prefName); },
Cr.NS_ERROR_UNEXPECTED);
strictEqual(ps.getIntPref(prefName, 3), 3);
strictEqual(ps.getIntPref(prefName, 0), 0);
ps.setIntPref(prefName, 42);
strictEqual(ps.getIntPref(prefName), 42);
strictEqual(ps.getIntPref(prefName, 3), 42);
}

1
modules/libpref/test/unit/xpcshell.ini
View file

@ -13,6 +13,7 @@ support-files =
[test_stickyprefs.js]
support-files = data/testPrefSticky.js data/testPrefStickyUser.js
[test_changeType.js]
[test_defaultValues.js]
[test_dirtyPrefs.js]
[test_extprefs.js]
[test_libPrefs.js]