fix attaching listeners before connecting

test/Test.ts

@@ -570,4 +570,35 @@ describe("Class binding", ()=>{
             done()
         })
     })
+})
+
+
+describe("attaching handlers before connecting", ()=>{
+
+
+    it("fires error if server is unreachable", (done)=>{
+        const sock = new RPCSocket(21004, 'localhost')
+        let errorHandleCount = 0
+
+        sock.on('error', (socket) => {
+            //attached listener fires first
+            if(errorHandleCount != 0){
+                console.log("Error handler didn't fire first");
+            }else{
+                errorHandleCount++
+            }
+        })
+
+        sock.connect().then(_ => {
+            console.log("Unexpected successful connect")
+        }).catch(e => {
+            //catch clause fires second
+            if(errorHandleCount != 1){
+                console.log("catch clause didn't fire second");
+            }else{
+                sock.destroy()
+                done()
+            }
+        })
+    })
 })