--- a/tests/test-profile.t	Thu Dec 03 08:09:56 2020 +0100
+++ b/tests/test-profile.t	Wed Dec 02 15:38:05 2020 -0800
@@ -100,6 +100,8 @@
 
   $ hg --profile --config profiling.statformat=hotpath sleep 2>../out || cat ../out
   $ cat ../out | statprofran
+  $ grep sleepext.py ../out
+  .* [0-9.]+%  [0-9.]+s  sleepext.py:\s*sleep           line 7:  time\.sleep.* (re)
 
   $ hg --profile --config profiling.statformat=json sleep 2>../out || cat ../out
   $ cat ../out