diff --git a/tests/pytest/pytest_2.sh b/tests/pytest/pytest_2.sh
index 28c0a38351a14268594497431a19ec7f83bc05cb..4ec517a0bf1c5eff8ad670cf28ab63d5ce818460 100755
--- a/tests/pytest/pytest_2.sh
+++ b/tests/pytest/pytest_2.sh
@@ -15,4 +15,7 @@ python3 ./test.py -f update/merge_commit_last.py
 python3 ./test.py -f update/bug_td2279.py
 
 # wal
-python3 ./test.py -f wal/addOldWalTest.py
\ No newline at end of file
+python3 ./test.py -f wal/addOldWalTest.py
+
+# function
+python3 ./test.py -f functions/all_null_value.py
\ No newline at end of file