toolkit/mozapps/extensions/test/xpcshell/test_bug595081.js

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1 /* Any copyright is dedicated to the Public Domain.
2 * http://creativecommons.org/publicdomain/zero/1.0/
3 */
4
5 // Tests that the AddonManager objects cannot be tampered with
6
7 function run_test() {
8 // Setup for test
9 createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
10
11 startupManager();
12
13 // Verify that properties cannot be changed
14 let old = AddonManager.STATE_AVAILABLE;
15 AddonManager.STATE_AVAILABLE = 28;
16 do_check_eq(AddonManager.STATE_AVAILABLE, old);
17
18 // Verify that functions cannot be replaced
19 AddonManager.isInstallEnabled = function() {
20 do_throw("Should not be able to replace a function");
21 }
22 AddonManager.isInstallEnabled("application/x-xpinstall");
23
24 // Verify that properties cannot be added
25 AddonManager.foo = "bar";
26 do_check_false("foo" in AddonManager);
27 }

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