Close unclosed resources in the whole project (#267)

* Close resources

* Close all resources

* Update pyproject.toml

* Close all resources

* Close all resources

* try now...

* try to ignore this

* try again

* try adding one more..

* try now

* try now

* revert ci changes

tests/client/test_session.py

@@ -83,6 +83,10 @@ async def test_client_session_initialize():
     async with (
         ClientSession(server_to_client_receive, client_to_server_send) as session,
         anyio.create_task_group() as tg,
+        client_to_server_send,
+        client_to_server_receive,
+        server_to_client_send,
+        server_to_client_receive,
     ):
         tg.start_soon(mock_server)
         tg.start_soon(listen_session)

tests/issues/test_192_request_id.py

@@ -43,7 +43,13 @@ async def test_request_id_match() -> None:
             )
 
     # Start server task
-    async with anyio.create_task_group() as tg:
+    async with (
+        anyio.create_task_group() as tg,
+        client_writer,
+        client_reader,
+        server_writer,
+        server_reader,
+    ):
         tg.start_soon(run_server)
 
         # Send initialize request

tests/server/test_lifespan.py

@@ -25,7 +25,7 @@ async def test_lowlevel_server_lifespan():
     """Test that lifespan works in low-level server."""
 
     @asynccontextmanager
-    async def test_lifespan(server: Server) -> AsyncIterator[dict]:
+    async def test_lifespan(server: Server) -> AsyncIterator[dict[str, bool]]:
         """Test lifespan context that tracks startup/shutdown."""
         context = {"started": False, "shutdown": False}
         try:
@@ -50,7 +50,13 @@ async def test_lowlevel_server_lifespan():
         return [{"type": "text", "text": "true"}]
 
     # Run server in background task
-    async with anyio.create_task_group() as tg:
+    async with (
+        anyio.create_task_group() as tg,
+        send_stream1,
+        receive_stream1,
+        send_stream2,
+        receive_stream2,
+    ):
 
         async def run_server():
             await server.run(
@@ -147,7 +153,13 @@ async def test_fastmcp_server_lifespan():
         return True
 
     # Run server in background task
-    async with anyio.create_task_group() as tg:
+    async with (
+        anyio.create_task_group() as tg,
+        send_stream1,
+        receive_stream1,
+        send_stream2,
+        receive_stream2,
+    ):
 
         async def run_server():
             await server._mcp_server.run(