diff -r 000000000000 -r 6474c204b198 toolkit/devtools/server/tests/unit/test_framebindings-07.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/devtools/server/tests/unit/test_framebindings-07.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,64 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+var gDebuggee;
+var gClient;
+var gThreadClient;
+
+// Test that the EnvironmentClient's getBindings() method works as expected.
+function run_test()
+{
+  initTestDebuggerServer();
+  gDebuggee = addTestGlobal("test-bindings");
+
+  gClient = new DebuggerClient(DebuggerServer.connectPipe());
+  gClient.connect(function() {
+    attachTestTabAndResume(gClient, "test-bindings", function(aResponse, aTabClient, aThreadClient) {
+      gThreadClient = aThreadClient;
+      test_banana_environment();
+    });
+  });
+  do_test_pending();
+}
+
+function test_banana_environment()
+{
+
+  gThreadClient.addOneTimeListener("paused", function(aEvent, aPacket) {
+    let environment = aPacket.frame.environment;
+    do_check_eq(environment.type, "function");
+
+    let parent = environment.parent;
+    do_check_eq(parent.type, "block");
+
+    let grandpa = parent.parent;
+    do_check_eq(grandpa.type, "function");
+
+    let envClient = gThreadClient.environment(environment);
+    envClient.getBindings(aResponse => {
+      do_check_eq(aResponse.bindings.arguments[0].z.value, "z");
+
+      let parentClient = gThreadClient.environment(parent);
+      parentClient.getBindings(aResponse => {
+        do_check_eq(aResponse.bindings.variables.banana3.value.class, "Function");
+
+        let grandpaClient = gThreadClient.environment(grandpa);
+        grandpaClient.getBindings(aResponse => {
+          do_check_eq(aResponse.bindings.arguments[0].y.value, "y");
+          gThreadClient.resume(() => finishClient(gClient));
+        });
+      });
+    });
+  });
+
+  gDebuggee.eval("\
+        function banana(x) {                                            \n\
+          return function banana2(y) {                                  \n\
+            return function banana3(z) {                                \n\
+              debugger;                                                 \n\
+            };                                                          \n\
+          };                                                            \n\
+        }                                                               \n\
+        banana('x')('y')('z');                                          \n\
+        ");
+}