test: Skip flaky p2p_invalid_messages test on macOS

test/functional/p2p_invalid_messages.py

@@ -6,6 +6,7 @@
 import asyncio
 import os
 import struct
+import sys
 
 from test_framework import messages
 from test_framework.mininode import P2PDataStore, NetworkThread
@@ -92,6 +93,11 @@ class InvalidMessagesTest(BitcoinTestFramework):
         #
         # Send an oversized message, ensure we're disconnected.
         #
+        # Under macOS this test is skipped due to an unexpected error code
+        # returned from the closing socket which python/asyncio does not
+        # yet know how to handle.
+        #
+        if sys.platform != 'darwin':
             msg_over_size = msg_unrecognized(str_data="b" * (valid_data_limit + 1))
             assert len(msg_over_size.serialize()) == (msg_limit + 1)
 
@@ -104,6 +110,8 @@ class InvalidMessagesTest(BitcoinTestFramework):
             node.disconnect_p2ps()
             conn = node.add_p2p_connection(P2PDataStore())
             conn.wait_for_verack()
+        else:
+            self.log.info("Skipping test p2p_invalid_messages/1 (oversized message) under macOS")
 
         #
         # 2.