From bd4c5f3d9516e61b467b15437f94fc1c24cf9264 Mon Sep 17 00:00:00 2001
From: Liam Kinne <liam@kinne.io>
Date: Sun, 30 Jun 2024 11:23:37 +1000
Subject: [PATCH] show actual result as well as expectation

---
 can/interfaces/socketcand/socketcand.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/can/interfaces/socketcand/socketcand.py b/can/interfaces/socketcand/socketcand.py
index 2cfdf54e5..7a2cc6fd0 100644
--- a/can/interfaces/socketcand/socketcand.py
+++ b/can/interfaces/socketcand/socketcand.py
@@ -323,7 +323,7 @@ def _expect_msg(self, msg):
         if self.__tcp_tune:
             self.__socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_QUICKACK, 1)
         if not ascii_msg == msg:
-            raise can.CanError(f"{msg} message expected!")
+            raise can.CanError(f"Expected '{msg}' got: '{ascii_msg}'")
 
     def send(self, msg, timeout=None):
         """Transmit a message to the CAN bus.