test stdout close

Author: felixweinberger

src/mcp/client/stdio/__init__.py

@@ -188,6 +188,13 @@ async def stdin_writer():
                     # stdin might already be closed, which is fine
                     pass
 
+            if process.stdout:
+                try:
+                    await process.stdout.aclose()
+                except Exception:
+                    # stdout might already be closed, which is fine
+                    pass
+
             try:
                 # Give the process time to exit gracefully after stdin closes
                 with anyio.fail_after(2.0):