pytest: test rpc_command hook chain

tests/plugins/rpc_command_1.py

@@ -0,0 +1,26 @@
+#!/usr/bin/env python3
+"""
+This plugin is used to test the chained `rpc_command` hook.
+"""
+from pyln.client import Plugin
+
+plugin = Plugin()
+
+
+@plugin.hook("rpc_command")
+def on_rpc_command(plugin, rpc_command, **kwargs):
+    request = rpc_command
+    if request["method"] == "invoice":
+        # Replace part of this command
+        request["params"]["description"] = "rpc_command_1 modified this description"
+        return {"replace": request}
+    elif request["method"] == "listfunds":
+        # Return a custom result to the command
+        return {"return": {"result": ["Custom rpc_command_1 result"]}}
+    elif request["method"] == "help":
+        request["method"] = "autocleaninvoice"
+        return {"replace": request}
+    return {"result": "continue"}
+
+
+plugin.run()