pytest: peer_connected chainable tests

tests/plugins/peer_connected_logger_a.py

@@ -0,0 +1,17 @@
+#!/usr/bin/env python3
+"""Simple plugin to log the connected_hook.
+
+"""
+
+from pyln.client import Plugin
+
+plugin = Plugin()
+
+
+@plugin.hook('peer_connected')
+def on_connected(peer, plugin, **kwargs):
+    print("peer_connected_logger_a {}".format(peer['id']))
+    return {'result': 'continue'}
+
+
+plugin.run()