test: Add a timeout to SyncHTTPClient test

diff --git a/tornado/test/httpclient_test.py b/tornado/test/httpclient_test.py
index f87f972ff37d79fb75799041f1426dd31d15be80..fd9a978640d88d1ee750bbee64b0e500f75aed59 100644 (file)
--- a/tornado/test/httpclient_test.py
+++ b/tornado/test/httpclient_test.py
@@ -836,6 +836,7 @@ class SyncHTTPClientSubprocessTest(unittest.TestCase):
             stdout=subprocess.PIPE,
             stderr=subprocess.STDOUT,
             check=True,
+            timeout=5,
         )
         if proc.stdout:
             print("STDOUT:")