✨ improve dependency injection params (#2034)

tests/plugins/param/priority.py

@@ -0,0 +1,23 @@
+from typing import Optional
+
+from nonebot.typing import T_State
+from nonebot.matcher import Matcher
+from nonebot.params import Arg, Depends
+from nonebot.adapters import Bot, Event, Message
+
+
+def dependency():
+    return 1
+
+
+async def complex_priority(
+    sub: int = Depends(dependency),
+    bot: Optional[Bot] = None,
+    event: Optional[Event] = None,
+    state: T_State = {},
+    matcher: Optional[Matcher] = None,
+    arg: Message = Arg(),
+    exception: Optional[Exception] = None,
+    default: int = 1,
+):
+    ...

tests/test_param.py

@@ -4,6 +4,7 @@ import pytest
 from nonebug import App
 
 from nonebot.matcher import Matcher
+from nonebot.dependencies import Dependent
 from nonebot.exception import TypeMisMatch
 from utils import make_fake_event, make_fake_message
 from nonebot.params import (
@@ -413,3 +414,41 @@ async def test_default(app: App):
 
     async with app.test_dependent(default, allow_types=[DefaultParam]) as ctx:
         ctx.should_return(1)
+
+
+@pytest.mark.asyncio
+async def test_priority():
+    from plugins.param.priority import complex_priority
+
+    dependent = Dependent.parse(
+        call=complex_priority,
+        allow_types=[
+            DependParam,
+            BotParam,
+            EventParam,
+            StateParam,
+            MatcherParam,
+            ArgParam,
+            ExceptionParam,
+            DefaultParam,
+        ],
+    )
+    for param in dependent.params:
+        if param.name == "sub":
+            assert isinstance(param.field_info, DependParam)
+        elif param.name == "bot":
+            assert isinstance(param.field_info, BotParam)
+        elif param.name == "event":
+            assert isinstance(param.field_info, EventParam)
+        elif param.name == "state":
+            assert isinstance(param.field_info, StateParam)
+        elif param.name == "matcher":
+            assert isinstance(param.field_info, MatcherParam)
+        elif param.name == "arg":
+            assert isinstance(param.field_info, ArgParam)
+        elif param.name == "exception":
+            assert isinstance(param.field_info, ExceptionParam)
+        elif param.name == "default":
+            assert isinstance(param.field_info, DefaultParam)
+        else:
+            raise ValueError(f"unknown param {param.name}")