1 files changed, 23 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Object-unwrap-01.js b/js/src/jit-test/tests/debug/Object-unwrap-01.js
new file mode 100644
index 0000000000..345723e0e8
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Object-unwrap-01.js
@@ -0,0 +1,23 @@
+// Check Debugger.Object.prototype.unwrap surfaces.
+
+load(libdir + 'asserts.js');
+
+var dbg = new Debugger();
+var g = newGlobal({newCompartment: true});
+var gw = dbg.addDebuggee(g);
+
+assertEq(Object.getOwnPropertyDescriptor(gw, 'unwrap'), undefined);
+var d = Object.getOwnPropertyDescriptor(Object.getPrototypeOf(gw), 'unwrap');
+assertEq(d.enumerable, false);
+assertEq(d.configurable, true);
+assertEq(d.writable, true);
+
+assertEq(typeof gw.unwrap, "function");
+assertEq(gw.unwrap.length, 0);
+assertEq(gw.unwrap.name, "unwrap");
+
+// It can be called.
+gw.unwrap();
+
+// You shouldn't be able to apply the accessor to the prototype.
+assertThrowsInstanceOf(function () { Debugger.Object.prototype.unwrap(); }, TypeError);