✅ add test cases

tests/plugins/param/param_depend.py

@@ -0,0 +1,30 @@
+from nonebot import on_message
+from nonebot.adapters import Event
+from nonebot.params import Depends
+
+test_depends = on_message()
+
+runned = []
+
+
+def dependency():
+    runned.append(1)
+    return 1
+
+
+def parameterless():
+    assert len(runned) == 0
+    runned.append(1)
+
+
+# test parameterless
+@test_depends.handle(parameterless=[Depends(parameterless)])
+async def depends(x: int = Depends(dependency)):
+    # test dependency
+    return x
+
+
+@test_depends.handle()
+async def depends_cache(y: int = Depends(dependency, use_cache=True)):
+    # test cache
+    return y