2 files changed, 13 insertions, 8 deletions

diff --git a/src/mailman/database/tests/test_migrations.py b/src/mailman/database/tests/test_migrations.py
index b840842cb..d35a28d0f 100644
--- a/src/mailman/database/tests/test_migrations.py
+++ b/src/mailman/database/tests/test_migrations.py
@@ -185,16 +185,18 @@ class TestMigrations(unittest.TestCase):
             sa.sql.column('digests_enabled', sa.Boolean)
             )
         # Downgrading.
-        for table_id, enabled in IDS_TO_DIGESTABLE:
-            config.db.store.execute(mlist_table.insert().values(
-                id=table_id, digests_enabled=enabled))
-        config.db.store.commit()
-        alembic.command.downgrade(alembic_cfg, '47294d3a604')
-        results = config.db.store.execute(
-            'SELECT id, digestable FROM mailinglist').fetchall()
+        with transaction():
+            for table_id, enabled in IDS_TO_DIGESTABLE:
+                config.db.store.execute(mlist_table.insert().values(
+                    id=table_id, digests_enabled=enabled))
+        with transaction():
+            alembic.command.downgrade(alembic_cfg, '47294d3a604')
+            results = config.db.store.execute(
+                'SELECT id, digestable FROM mailinglist').fetchall()
         self.assertEqual(results, IDS_TO_DIGESTABLE)
         # Upgrading.
-        alembic.command.upgrade(alembic_cfg, '70af5a4e5790')
+        with transaction():
+            alembic.command.upgrade(alembic_cfg, '70af5a4e5790')
         results = config.db.store.execute(
             'SELECT id, digests_enabled FROM mailinglist').fetchall()
         self.assertEqual(results, IDS_TO_DIGESTABLE)
diff --git a/src/mailman/docs/START.rst b/src/mailman/docs/START.rst
index 6181426cb..8076b426d 100644
--- a/src/mailman/docs/START.rst
+++ b/src/mailman/docs/START.rst
@@ -83,6 +83,9 @@ so::
 
     $ MAILMAN_EXTRA_TESTING_CFG=/path/to/postgres.cfg .tox/pg/bin/python -m nose2 -vv -P user
 
+Note that the path specified in `MAILMAN_EXTRA_TESTING_CFG` must be an
+absolute path or some tests will fail.
+
 
 Building for development
 ------------------------