diff --git a/nonebug/fixture.py b/nonebug/fixture.py
index 006cc4c..d7254f7 100644
--- a/nonebug/fixture.py
+++ b/nonebug/fixture.py
@@ -1,17 +1,57 @@
+from contextlib import nullcontext, asynccontextmanager
+
 import pytest
+from async_asgi_testclient import TestClient
 
 from nonebug.app import App
+from nonebug.mixin.driver import set_global_client
 
 from . import NONEBOT_INIT_KWARGS, NONEBOT_START_LIFESPAN
 
 
+@asynccontextmanager
+async def lifespan_ctx():
+    import nonebot
+    from nonebot import logger
+    from nonebot.drivers import ASGIMixin
+
+    driver = nonebot.get_driver()
+
+    if isinstance(driver, ASGIMixin):
+        # if the driver has an asgi application
+        # use asgi lifespan to startup/shutdown
+        ctx = TestClient(driver.asgi)
+        set_global_client(ctx)
+    else:
+        ctx = driver._lifespan
+
+    try:
+        await ctx.__aenter__()
+    except Exception as e:
+        logger.opt(colors=True, exception=e).error(
+            "<r><bg #f8bbd0>Error occurred while running startup hook."
+            "</bg #f8bbd0></r>"
+        )
+        raise
+
+    try:
+        yield
+    finally:
+        try:
+            await ctx.__aexit__(None, None, None)
+        except Exception as e:
+            logger.opt(colors=True, exception=e).error(
+                "<r><bg #f8bbd0>Error occurred while running shutdown hook."
+                "</bg #f8bbd0></r>"
+            )
+
+
 @pytest.fixture(scope="session", autouse=True)
-async def nonebug_init(request: pytest.FixtureRequest):  # noqa: PT004
+def _nonebot_init(request: pytest.FixtureRequest):
     """
     Initialize nonebot before test case running.
     """
     import nonebot
-    from nonebot import logger
     from nonebot.matcher import matchers
 
     from nonebug.provider import NoneBugProvider
@@ -19,29 +59,22 @@ async def nonebug_init(request: pytest.FixtureRequest):  # noqa: PT004
     nonebot.init(**request.config.stash.get(NONEBOT_INIT_KWARGS, {}))
     matchers.set_provider(NoneBugProvider)
 
+
+@pytest.fixture(scope="session", autouse=True)
+async def after_nonebot_init(_nonebot_init: None):  # noqa: PT004
+    pass
+
+
+@pytest.fixture(scope="session", autouse=True)
+async def nonebug_init(  # noqa: PT004
+    _nonebot_init: None, after_nonebot_init: None, request: pytest.FixtureRequest
+):
     run_lifespan = request.config.stash.get(NONEBOT_START_LIFESPAN, True)
-    driver = nonebot.get_driver()
-    if run_lifespan:
-        try:
-            await driver._lifespan.startup()
-        except Exception as e:
-            logger.opt(colors=True, exception=e).error(
-                "<r><bg #f8bbd0>Error occurred while running startup hook."
-                "</bg #f8bbd0></r>"
-            )
-            raise
 
-    try:
+    ctx = lifespan_ctx() if run_lifespan else nullcontext()
+
+    async with ctx:
         yield
-    finally:
-        if run_lifespan:
-            try:
-                await driver._lifespan.shutdown()
-            except Exception as e:
-                logger.opt(colors=True, exception=e).error(
-                    "<r><bg #f8bbd0>Error occurred while running shutdown hook."
-                    "</bg #f8bbd0></r>"
-                )
 
 
 @pytest.fixture(name="app")
@@ -53,4 +86,4 @@ def nonebug_app(nonebug_init) -> App:
     return App()
 
 
-__all__ = ["nonebug_init", "nonebug_app"]
+__all__ = ["after_nonebot_init", "nonebug_init", "nonebug_app"]
diff --git a/nonebug/mixin/driver.py b/nonebug/mixin/driver.py
index c14b1f8..bc79c77 100644
--- a/nonebug/mixin/driver.py
+++ b/nonebug/mixin/driver.py
@@ -6,6 +6,21 @@
 
 from nonebug.base import BaseApp, Context
 
+_global_client: Optional[TestClient] = None
+
+
+def set_global_client(client: TestClient):
+    global _global_client
+
+    if _global_client is not None:
+        raise RuntimeError()
+
+    _global_client = client
+
+
+def get_global_client() -> Optional[TestClient]:
+    return _global_client
+
 
 @final
 class ServerContext(Context):
@@ -14,18 +29,21 @@ def __init__(
         app: BaseApp,
         *args,
         asgi: ASGIApplication,
+        client: Optional[TestClient] = None,
         **kwargs,
     ):
         super().__init__(app, *args, **kwargs)
         self.asgi = asgi
+        self.specified_client = client
         self.client = TestClient(self.asgi)
 
     def get_client(self) -> TestClient:
-        return self.client
+        return self.specified_client or self.client
 
     async def setup(self) -> None:
         await super().setup()
-        await self.stack.enter_async_context(self.client)
+        if self.specified_client is None:
+            await self.stack.enter_async_context(self.client)
 
 
 # @final
@@ -50,8 +68,12 @@ class DriverMixin(BaseApp):
     def test_server(self, asgi: Optional[ASGIApplication] = None) -> ServerContext:
         import nonebot
 
+        client = None
+        if asgi is None:
+            client = get_global_client()
+
         asgi = asgi or nonebot.get_asgi()
-        return ServerContext(self, asgi=asgi)
+        return ServerContext(self, asgi=asgi, client=client)
 
     # def test_client(self):
     #     ...
diff --git a/tests/conftest.py b/tests/conftest.py
index 6685658..76ba821 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -5,13 +5,13 @@
 from nonebot.plugin import Plugin
 
 from nonebug import NONEBOT_INIT_KWARGS
-from nonebug.fixture import *  # noqa: F403
+from nonebug.fixture import nonebug_app, nonebug_init, _nonebot_init  # noqa: F401
 
 
 def pytest_configure(config: pytest.Config) -> None:
     config.stash[NONEBOT_INIT_KWARGS] = {"custom_key": "custom_value"}
 
 
-@pytest.fixture(scope="session")
-def load_plugin(nonebug_init: None) -> set[Plugin]:
+@pytest.fixture(scope="session", autouse=True)
+async def after_nonebot_init(_nonebot_init: None) -> set[Plugin]:  # noqa: F811
     return nonebot.load_plugins(str(Path(__file__).parent / "plugins"))