From 63c32bb783bf2766537ccf8f525fa1f6683cca9a Mon Sep 17 00:00:00 2001
From: Timo Hocker <t-hocker@web.de>
Date: Thu, 7 May 2020 15:14:15 +0200
Subject: [PATCH] display current state on error

---
 lib/classes/GraphStream.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/classes/GraphStream.ts b/lib/classes/GraphStream.ts
index 159130b..1f0cb11 100644
--- a/lib/classes/GraphStream.ts
+++ b/lib/classes/GraphStream.ts
@@ -52,6 +52,7 @@ export class GraphStream extends Transform {
     if (!states.includes (this._state)) {
       throw new Error (`invalid state to execute command ${instr}
   expected: ${states.join (', ')}`);
+  actual: ${this._state}`);
     }
   }