pytest: test the 'rpc_command' hook

tests/plugins/rpc_command.py

@@ -0,0 +1,27 @@
+#!/usr/bin/env python3
+"""
+This plugin is used to test the `rpc_command` hook.
+"""
+from lightning import Plugin
+
+plugin = Plugin(dynamic=False)
+
+
+@plugin.hook("rpc_command")
+def on_rpc_command(plugin, rpc_command, **kwargs):
+    request = rpc_command["rpc_command"]
+    if request["method"] == "invoice":
+        # Replace part of this command
+        request["params"]["description"] = "A plugin modified this description"
+        return {"replace": request}
+    elif request["method"] == "listfunds":
+        # Return a custom result to the command
+        return {"return": {"result": ["Custom result"]}}
+    elif request["method"] == "sendpay":
+        # Don't allow this command to be executed
+        return {"return": {"error": {"code": -1,
+                                     "message": "You cannot do this"}}}
+    return {"continue": True}
+
+
+plugin.run()