change to cleanup instead of transaction as a check

tests/test_hashes/test_many_to_many.py

@@ -5,6 +5,7 @@
 import ormar
 import pymysql
 import pytest
+import pytest_asyncio
 
 from tests.lifespan import init_tests
 from tests.settings import create_config
@@ -52,10 +53,25 @@ class AuthorXPosts(ormar.Model):
 create_test_database = init_tests(base_ormar_config)
 
 
+@pytest_asyncio.fixture(scope="function", autouse=True)
+async def cleanup():
+    yield
+    async with base_ormar_config.database:
+        await Post.ormar_config.model_fields["categories"].through.objects.delete(
+            each=True
+        )
+        await Post.ormar_config.model_fields["authors"].through.objects.delete(
+            each=True
+        )
+        await Post.objects.delete(each=True)
+        await Category.objects.delete(each=True)
+        await Author.objects.delete(each=True)
+
+
 @pytest.mark.asyncio
 async def test_adding_same_m2m_model_twice():
     async with base_ormar_config.database:
-        async with base_ormar_config.database.transaction(rollback=True):
+        async with base_ormar_config.database:
             post = await Post.objects.create(title="Hello, M2M")
             news = await Category(name="News").save()
 
@@ -69,7 +85,7 @@ async def test_adding_same_m2m_model_twice():
 @pytest.mark.asyncio
 async def test_adding_same_m2m_model_twice_with_unique():
     async with base_ormar_config.database:
-        async with base_ormar_config.database.transaction(rollback=True):
+        async with base_ormar_config.database:
             post = await Post.objects.create(title="Hello, M2M")
             redactor = await Author(name="News").save()