✅ add test cases

tests/plugins/param/param_state.py

@@ -0,0 +1,55 @@
+from typing import List, Tuple
+
+from nonebot.typing import T_State
+from nonebot.adapters import Message
+from nonebot.params import (
+    State,
+    Command,
+    RegexDict,
+    CommandArg,
+    RawCommand,
+    RegexGroup,
+    RegexMatched,
+    ShellCommandArgs,
+    ShellCommandArgv,
+)
+
+
+async def state(x: T_State = State()) -> T_State:
+    return x
+
+
+async def command(cmd: Tuple[str, ...] = Command()) -> Tuple[str, ...]:
+    return cmd
+
+
+async def raw_command(raw_cmd: str = RawCommand()) -> str:
+    return raw_cmd
+
+
+async def command_arg(cmd_arg: Message = CommandArg()) -> Message:
+    return cmd_arg
+
+
+async def shell_command_args(
+    shell_command_args: dict = ShellCommandArgs(),
+) -> dict:
+    return shell_command_args
+
+
+async def shell_command_argv(
+    shell_command_argv: List[str] = ShellCommandArgv(),
+) -> List[str]:
+    return shell_command_argv
+
+
+async def regex_dict(regex_dict: dict = RegexDict()) -> dict:
+    return regex_dict
+
+
+async def regex_group(regex_group: Tuple = RegexGroup()) -> Tuple:
+    return regex_group
+
+
+async def regex_matched(regex_matched: str = RegexMatched()) -> str:
+    return regex_matched