add test for push notification api call

test/api.mocha.coffee

@@ -1029,6 +1029,20 @@ describe "API", ->
                       ], cb
                   ], done
 
+      describe "Push-Notifications", ->
+        it "Register DeviceID", (done) ->
+          request.post(baseURL + "/user/pushDevice").send(
+            { regId: "123123", type: "android"}
+          ).end (res) ->
+            expectCode res, 200
+
+            User.findOne
+              _id: _id
+            , (err, _user) ->
+              expect(_user.pushDevices.length).to.be 1
+
+              done()
+
     describe "Subscriptions", ->
       user = undefined
       before (done) ->