1 files changed, 31 insertions, 0 deletions
diff --git a/js/xpconnect/tests/unit/test_bug1244222.js b/js/xpconnect/tests/unit/test_bug1244222.js
new file mode 100644
index 0000000000..b907c72033
--- /dev/null
+++ b/js/xpconnect/tests/unit/test_bug1244222.js
@@ -0,0 +1,31 @@
+/* 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/. */
+
+Services.prefs.setBoolPref("security.allow_eval_with_system_principal", true);
+registerCleanupFunction(() => {
+  Services.prefs.clearUserPref("security.allow_eval_with_system_principal");
+});
+
+var TestUtils = {
+  QueryInterface: ChromeUtils.generateQI(["nsIXPCTestUtils"]),
+  doubleWrapFunction(fun) { return fun }
+};
+
+function run_test() {
+  // Generate a CCW to a function.
+  var sb = new Cu.Sandbox(this);
+  sb.eval('function fun(x) { return x; }');
+  Assert.equal(sb.fun("foo"), "foo");
+
+  // Double-wrap the CCW.
+  var utils = xpcWrap(TestUtils, Ci.nsIXPCTestUtils);
+  var doubleWrapped = utils.doubleWrapFunction(sb.fun);
+  Assert.equal(doubleWrapped.echo("foo"), "foo");
+
+  // GC.
+  Cu.forceGC();
+
+  // Make sure it still works.
+  Assert.equal(doubleWrapped.echo("foo"), "foo");
+}