test checkin docs

test/Test.ts

@@ -5,6 +5,7 @@ import * as uuidv4 from "uuid/v4"
 import { RPCSocket } from "../src/Frontend";
 import { SubscriptionResponse } from "../src/Types";
 
+const add = (...args:number[]) => {return args.reduce((a,b)=>a+b, 0)}
 function makeServer(){
     let subcallback
     return new RPCServer<{ topic: string }>(20000, [{
@@ -41,7 +42,7 @@ function makeServer(){
                     console.log("onCallback", args[0] === "test" && args[1] === "callback"?"OK":"")                    
                 }
             },
-            function add(...args:number[]):number {return args.reduce((a,b)=>a+b, 0)},
+            add,
             function triggerCallback(...messages:any[]):number {return subcallback.apply({}, messages)},
         ]
     }],{
@@ -105,6 +106,15 @@ describe('RPCSocket', () => {
         })
     })
 
+    it('should add up to 6', (done) => {
+        client['test'].add(1,2,3).then(x => {
+            if(x === 6)
+                done()
+            else
+                done(new Error('echo RPC response did not match'))   
+        })
+    })
+
     it('should subscribe with success', (done) => {
         client['test'].simpleSubscribe(console.log).then(res => {
             if(res.result === 'Success'){