diff -r 000000000000 -r 6474c204b198 toolkit/devtools/server/tests/unit/test_objectgrips-04.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/devtools/server/tests/unit/test_objectgrips-04.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,67 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+var gDebuggee;
+var gClient;
+var gThreadClient;
+
+function run_test()
+{
+  initTestDebuggerServer();
+  gDebuggee = addTestGlobal("test-grips");
+  gDebuggee.eval(function stopMe(arg1) {
+    debugger;
+  }.toString());
+
+  gClient = new DebuggerClient(DebuggerServer.connectPipe());
+  gClient.connect(function() {
+    attachTestTabAndResume(gClient, "test-grips", function(aResponse, aTabClient, aThreadClient) {
+      gThreadClient = aThreadClient;
+      test_object_grip();
+    });
+  });
+  do_test_pending();
+}
+
+function test_object_grip()
+{
+  gThreadClient.addOneTimeListener("paused", function(aEvent, aPacket) {
+    let args = aPacket.frame.arguments;
+
+    do_check_eq(args[0].class, "Object");
+
+    let objClient = gThreadClient.pauseGrip(args[0]);
+    objClient.getPrototypeAndProperties(function(aResponse) {
+      do_check_eq(aResponse.ownProperties.x.configurable, true);
+      do_check_eq(aResponse.ownProperties.x.enumerable, true);
+      do_check_eq(aResponse.ownProperties.x.writable, true);
+      do_check_eq(aResponse.ownProperties.x.value, 10);
+
+      do_check_eq(aResponse.ownProperties.y.configurable, true);
+      do_check_eq(aResponse.ownProperties.y.enumerable, true);
+      do_check_eq(aResponse.ownProperties.y.writable, true);
+      do_check_eq(aResponse.ownProperties.y.value, "kaiju");
+
+      do_check_eq(aResponse.ownProperties.a.configurable, true);
+      do_check_eq(aResponse.ownProperties.a.enumerable, true);
+      do_check_eq(aResponse.ownProperties.a.get.type, "object");
+      do_check_eq(aResponse.ownProperties.a.get.class, "Function");
+      do_check_eq(aResponse.ownProperties.a.set.type, "undefined");
+
+      do_check_true(aResponse.prototype != undefined);
+
+      let protoClient = gThreadClient.pauseGrip(aResponse.prototype);
+      protoClient.getOwnPropertyNames(function(aResponse) {
+        do_check_true(aResponse.ownPropertyNames.toString != undefined);
+
+        gThreadClient.resume(function() {
+          finishClient(gClient);
+        });
+      });
+    });
+
+  });
+
+  gDebuggee.eval("stopMe({ x: 10, y: 'kaiju', get a() { return 42; } })");
+}
+