Tests: Test migration to create user_credentials table

* tests/unit/auth/test_create_user_credentials_table.py: new tests

1 files changed, 47 insertions, 0 deletions

diff --git a/tests/unit/auth/test_create_user_credentials_table.py b/tests/unit/auth/test_create_user_credentials_table.py
new file mode 100644
index 0000000..72b7dd7
--- /dev/null
+++ b/tests/unit/auth/test_create_user_credentials_table.py
@@ -0,0 +1,47 @@
+"""Test the auth database initialisation migration."""
+from contextlib import closing
+
+import pytest
+import sqlite3
+
+from gn3.migrations import get_migration, apply_migrations, rollback_migrations
+from tests.unit.auth.conftest import (
+    apply_single_migration, rollback_single_migration, migrations_up_to)
+
+migration_path = "migrations/auth/20221103_02_sGrIs-create-user-credentials-table.py"
+
+@pytest.mark.unit_test
+def test_create_user_credentials_table(auth_testdb_path, backend, all_migrations):
+    """
+    GIVEN: A database migration script to create the `user_credentials` table
+    WHEN: The migration is applied
+    THEN: Ensure that the table is created
+    """
+    older_migrations = migrations_up_to(migration_path, "migrations/auth/")
+    apply_migrations(backend, older_migrations)
+    with closing(sqlite3.connect(auth_testdb_path)) as conn, closing(conn.cursor()) as cursor:
+        cursor.execute("SELECT name FROM sqlite_schema WHERE type='table'")
+        result = cursor.fetchall()
+        assert "users_credentials" not in [row[0] for row in cursor.fetchall()]
+        apply_single_migration(auth_testdb_path, get_migration(migration_path))
+        cursor.execute("SELECT name FROM sqlite_schema WHERE type='table'")
+        assert "user_credentials" in [row[0] for row in cursor.fetchall()]
+
+    rollback_migrations(backend, older_migrations)
+
+@pytest.mark.unit_test
+def test_rollback_create_user_credentials_table(auth_testdb_path, backend):
+    """
+    GIVEN: A database migration script to create the `user_credentials` table
+    WHEN: The migration is rolled back
+    THEN: Ensure that the `user_credentials` table no longer exists
+    """
+    older_migrations = migrations_up_to(migration_path, "migrations/auth/")
+    apply_migrations(backend, older_migrations)
+    with closing(sqlite3.connect(auth_testdb_path)) as conn, closing(conn.cursor()) as cursor:
+        apply_single_migration(auth_testdb_path, get_migration(migration_path))
+        rollback_single_migration(auth_testdb_path, get_migration(migration_path))
+        cursor.execute("SELECT name FROM sqlite_schema WHERE type='table'")
+        assert "user_credentials" not in [row[0] for row in cursor.fetchall()]
+
+    rollback_migrations(backend, older_migrations)