add ddl

tests/backends/mysql/__init__.py

@@ -0,0 +1,27 @@
+from asynctest import TestCase
+from tortoise import Tortoise
+
+from alice.backends.mysql import MysqlDDL
+from tests.models import Category
+
+TORTOISE_ORM = {
+    'connections': {
+        'default': 'mysql://root:123456@127.0.0.1:3306/test'
+    },
+    'apps': {
+        'models': {
+            'models': ['tests.models'],
+            'default_connection': 'default',
+        }
+    }
+}
+
+
+class DBTestCase(TestCase):
+    async def setUp(self) -> None:
+        await Tortoise.init(config=TORTOISE_ORM)
+        self.client = Tortoise.get_connection('default')
+        self.ddl = MysqlDDL(self.client)
+
+    async def tearDown(self) -> None:
+        await Tortoise.close_connections()