1 files changed, 59 insertions, 0 deletions
diff --git a/src/mailman/database/tests/test_migrations.py b/src/mailman/database/tests/test_migrations.py
new file mode 100644
index 000000000..201fd618a
--- /dev/null
+++ b/src/mailman/database/tests/test_migrations.py
@@ -0,0 +1,59 @@
+# Copyright (C) 2013-2015 by the Free Software Foundation, Inc.
+#
+# This file is part of GNU Mailman.
+#
+# GNU Mailman is free software: you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free
+# Software Foundation, either version 3 of the License, or (at your option)
+# any later version.
+#
+# GNU Mailman is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+# more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# GNU Mailman.  If not, see <http://www.gnu.org/licenses/>.
+
+"""Test database schema migrations with Alembic"""
+
+__all__ = [
+    'TestMigrations',
+    ]
+
+
+import unittest
+import alembic.command
+
+from mailman.config import config
+from mailman.database.alembic import alembic_cfg
+from mailman.database.model import Model
+from mailman.testing.layers import ConfigLayer
+import sqlalchemy as sa
+
+
+
+class TestMigrations(unittest.TestCase):
+
+    layer = ConfigLayer
+
+    def setUp(self):
+        alembic.command.stamp(alembic_cfg, 'head')
+
+    def tearDown(self):
+        # Drop and restore a virgin database.
+        md = sa.MetaData()
+        md.reflect(bind=config.db.engine)
+        for table in md.sorted_tables:
+            table.drop(config.db.engine)
+        Model.metadata.create_all(config.db.engine)
+
+    def test_all_migrations(self):
+        script_dir = alembic.script.ScriptDirectory.from_config(alembic_cfg)
+        revisions = [sc.revision for sc in
+                     script_dir.walk_revisions("base", "heads")]
+        for revision in revisions:
+            alembic.command.downgrade(alembic_cfg, revision)
+        revisions.reverse()
+        for revision in revisions:
+            alembic.command.upgrade(alembic_cfg, revision)