improve ping-pong test

src/tests/01-ping-pong.ts

@@ -1,21 +1,10 @@
-import { Machine, State, On, SideEffect, Goto, Spawn, Unspawn, interpret, Interpreter_T, send, Event_T } from '../index';
+import { Machine, State, On, SideEffect, Goto, Spawn, Unspawn, interpret, Interpreter_T, send, Event_T, Context } from '../index';
 
 const wait = (ms:number)=>new Promise((resolve)=>{ setTimeout(()=>{ resolve(1); }, ms); });
 const makeRequest = (ctx,e,self)=>{ send(ctx.serverActor, ['received-request',self]); };
 const sendResponse = (ctx,e,self)=>{ send(ctx.clientActor, ['received-response',self]); };
-const startTimer = async (ctx,e,self)=>{ await wait(500); send(self, ['timer-finished',null]); }
-const log = (ctx, e, self:Interpreter_T)=>{ console.log(self.state); };
-
-type Sc = 
-  | 'idle' 
-  | 'making-request' 
-  | 'awaiting-response';
-type Ec = 
-  | ['entry',null] 
-  | ['received-response',Interpreter_T]
-  | ['server-created', Interpreter_T];
-type Cc = 
-  | {serverActor?:Interpreter_T};
+const startTimer = async (ctx,e,self)=>{ await wait(1500); send(self, ['timer-finished',null]); }
+const log = (ctx, e, self:Interpreter_T)=>{ console.log(self.state, ctx); };
 
 const client = 
   Machine(
@@ -32,6 +21,7 @@ const client =
       On('entry', 
         SideEffect(log),
         SideEffect(makeRequest),
+        Context((ctx)=>({...ctx, requestsMade: ctx.requestsMade+1})),
         Goto('awaiting-response')
       ),
     ),
@@ -41,20 +31,12 @@ const client =
       ),
       On('received-response', 
         SideEffect(log),
+        Context((ctx)=>({...ctx, responsesReceived: ctx.responsesReceived+1})),
         Goto('making-request')
       ),
     ),
   );
 
-type Ss = 
-  | 'awaiting-request' 
-  | 'sending-response';
-type Es = 
-  | ['entry',null] 
-  | ['received-request',Interpreter_T]
-  | ['timer-finished', null];
-type Cs = {clientActor?:Interpreter_T};
-
 const server = 
   Machine(
     State('awaiting-request',
@@ -78,6 +60,6 @@ const server =
     ),
   );
 
-const clientActor = interpret(client, {context:{}});
+const clientActor = interpret(client, {context:{requestsMade:0, responsesReceived:0}});
 const serverActor = interpret(server, {context:{}});
 send(clientActor, ['server-created', serverActor]);