diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/debug/Object-defineProperty-13.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/debug/Object-defineProperty-13.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,16 @@
+// defineProperty throws if a getter or setter is neither undefined nor callable.
+
+load(libdir + "asserts.js");
+
+var g = newGlobal();
+var dbg = new Debugger;
+var gw = dbg.addDebuggee(g);
+
+for (let v of [null, false, 'bad', 0, 2.76, {}]) {
+    assertThrowsInstanceOf(function () {
+        gw.defineProperty("p", {configurable: true, get: v});
+    }, TypeError);
+    assertThrowsInstanceOf(function () {
+        gw.defineProperty("p", {configurable: true, set: v});
+    }, TypeError);
+}