Add transaction rollback for non-idle status in test_typeinfo

Author: chenyunliang520

tests/test_typeinfo.py

@@ -104,6 +104,9 @@ def exit(self, exc_type, exc_val, exc_tb):
     assert conn.info.transaction_status == status
     assert info is None
 
+    if conn.info.transaction_status != TransactionStatus.IDLE:
+        conn.rollback()
+
 
 @_name
 @_status