diff --git a/tests/test_plugins/test_processor.py b/tests/test_plugins/test_processor.py
new file mode 100644
index 00000000..8352dbdb
--- /dev/null
+++ b/tests/test_plugins/test_processor.py
@@ -0,0 +1,13 @@
+from nonebot.typing import Bot, Event, Matcher
+from nonebot.message import event_preprocessor, run_preprocessor
+
+
+@event_preprocessor
+async def handle(bot: Bot, event: Event, state: dict):
+    state["preprocessed"] = True
+    print(event)
+
+
+@run_preprocessor
+async def run(matcher: Matcher, bot: Bot, event: Event, state: dict):
+    print(matcher)