diff --git a/docs/test-client.md b/docs/test-client.md
index 52b6cbe..c2f1a3b 100644
--- a/docs/test-client.md
+++ b/docs/test-client.md
@@ -37,6 +37,11 @@ that rollbacks once the database is disconnected.
 
     <sup>Default: `False`</sup>
 
+* **lazy_setup** - This sets up the db first up on connect not in init.
+
+    <sup>Default: `True`</sup>
+
+
 * **use_existing** - Uses the existing `test_` database if previously created and not dropped.
 
     <sup>Default: `False`</sup>
@@ -45,6 +50,18 @@ that rollbacks once the database is disconnected.
 
     <sup>Default: `False`</sup>
 
+* **test_prefix** - Allow a custom test prefix or leave empty to use the url instead without changes.
+
+    <sup>Default: `testclient_default_test_prefix` (defaults to `test_`)</sup>
+
+### Configuration via Environment
+
+Most parameters defaults can be changed via capitalized environment names with `SAFFIER_TESTCLIENT_`.
+
+E.g. `SAFFIER_TESTCLIENT_DEFAULT_PREFIX=foobar` or `SAFFIER_TESTCLIENT_FORCE_ROLLBACK=true`.
+
+This is used for the tests.
+
 ### How to use it
 
 This is the easiest part because is already very familiar with the `Database` used by Saffier. In
@@ -56,7 +73,7 @@ Let us assume you have a database url like this following:
 DATABASE_URL = "postgresql+asyncpg://postgres:postgres@localhost:5432/my_db"
 ```
 
-We know the database is called `my_db`, right? 
+We know the database is called `my_db`, right?
 
 When using the `DatabaseTestClient`, the client will ensure the tests will land on a `test_my_db`.
 
@@ -74,8 +91,7 @@ Well, this is rather complex test and actually a real one from Saffier and what
 that is using the `DatabaseTestClient` which means the tests against models, fields or whatever
 database operation you want will be on a `test_` database.
 
-But you can see a `drop_database=True`, so what is that? 
+But you can see a `drop_database=True`, so what is that?
 
 Well `drop_database=True` means that by the end of the tests finish running, drops the database
 into oblivion.
-
diff --git a/pyproject.toml b/pyproject.toml
index 42b6760..c1d4d3b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ dependencies = [
     "click>=8.1.3,<9.0.0",
     "dymmond-settings>=1.0.4",
     "loguru>=0.6.0,<0.10.0",
-    "databasez>=0.8.5",
+    "databasez>=0.9.2",
     "orjson >=3.8.5,<4.0.0",
     "pydantic>=2.5.3,<3.0.0",
     "rich>=13.3.1,<14.0.0",
diff --git a/saffier/core/db/models/model.py b/saffier/core/db/models/model.py
index 65c18ab..71945f2 100644
--- a/saffier/core/db/models/model.py
+++ b/saffier/core/db/models/model.py
@@ -118,10 +118,9 @@ async def _save(self, **kwargs: typing.Any) -> "Model":
         autoincrement_value = await self.database.execute(expression)
         # sqlalchemy supports only one autoincrement column
         if autoincrement_value:
-            if isinstance(autoincrement_value, Row):
-                assert len(autoincrement_value) == 1
-                autoincrement_value = autoincrement_value[0]
             column = self.table.autoincrement_column
+            if column is not None and isinstance(autoincrement_value, Row):
+                autoincrement_value = autoincrement_value._mapping[column.name]
             # can be explicit set, which causes an invalid value returned
             if column is not None and column.key not in kwargs:
                 saffier_setattr(self, column.key, autoincrement_value)
diff --git a/saffier/core/db/querysets/base.py b/saffier/core/db/querysets/base.py
index 4827baa..98555b6 100644
--- a/saffier/core/db/querysets/base.py
+++ b/saffier/core/db/querysets/base.py
@@ -936,7 +936,7 @@ async def bulk_create(self, objs: List[Dict]) -> None:
 
         expression = queryset.table.insert().values(new_objs)
         queryset._set_query_expression(expression)
-        await queryset.database.execute(expression)
+        await queryset.database.execute_many(expression)
 
     async def bulk_update(self, objs: List[SaffierModel], fields: List[str]) -> None:
         """
@@ -987,7 +987,7 @@ async def bulk_update(self, objs: List[SaffierModel], fields: List[str]) -> None
 
         expression = expression.values(kwargs)
         queryset._set_query_expression(expression)
-        await queryset.database.execute(expression, query_list)
+        await queryset.database.execute_many(expression, query_list)
 
     async def delete(self) -> None:
         queryset: "QuerySet" = self._clone()
diff --git a/saffier/core/utils/sync.py b/saffier/core/utils/sync.py
index 1e09bd2..a6ed23b 100644
--- a/saffier/core/utils/sync.py
+++ b/saffier/core/utils/sync.py
@@ -3,6 +3,10 @@
 from concurrent.futures import Future
 from typing import Any, Awaitable
 
+import nest_asyncio
+
+nest_asyncio.apply()
+
 
 def run_sync(async_function: Awaitable) -> Any:
     """
diff --git a/saffier/testclient.py b/saffier/testclient.py
index f70df06..8d45a51 100644
--- a/saffier/testclient.py
+++ b/saffier/testclient.py
@@ -1 +1,55 @@
-from databasez.testclient import DatabaseTestClient as DatabaseTestClient  # noqa
+import os
+import typing
+from typing import TYPE_CHECKING, Any
+
+from databasez.testclient import DatabaseTestClient as _DatabaseTestClient
+
+if TYPE_CHECKING:
+    import sqlalchemy
+    from databasez import Database, DatabaseURL
+
+# TODO: move this to the settings
+default_test_prefix: str = "test_"
+# for allowing empty
+if "SAFFIER_TESTCLIENT_TEST_PREFIX" in os.environ:
+    default_test_prefix = os.environ["SAFFIER_TESTCLIENT_TEST_PREFIX"]
+
+default_use_existing: bool = (
+    os.environ.get("SAFFIER_TESTCLIENT_USE_EXISTING") or ""
+).lower() == "true"
+default_drop_database: bool = (
+    os.environ.get("SAFFIER_TESTCLIENT_DROP_DATABASE") or ""
+).lower() == "true"
+
+
+class DatabaseTestClient(_DatabaseTestClient):
+    """
+    Adaption of DatabaseTestClient for saffier.
+
+    Note: the default of lazy_setup is True here. This enables the simple Registry syntax.
+    """
+
+    testclient_lazy_setup: bool = (
+        os.environ.get("SAFFIER_TESTCLIENT_LAZY_SETUP", "true") or ""
+    ).lower() == "true"
+    testclient_force_rollback: bool = (
+        os.environ.get("SAFFIER_TESTCLIENT_FORCE_ROLLBACK") or ""
+    ).lower() == "true"
+
+    # TODO: replace by testclient default overwrites
+    def __init__(
+        self,
+        url: typing.Union[str, "DatabaseURL", "sqlalchemy.URL", "Database"],
+        *,
+        use_existing: bool = default_use_existing,
+        drop_database: bool = default_drop_database,
+        test_prefix: str = default_test_prefix,
+        **options: Any,
+    ):
+        super().__init__(
+            url,
+            use_existing=use_existing,
+            drop_database=drop_database,
+            test_prefix=test_prefix,
+            **options,
+        )
diff --git a/scripts/test b/scripts/test
index 4868749..de6b057 100755
--- a/scripts/test
+++ b/scripts/test
@@ -6,6 +6,7 @@ if [ "$VIRTUAL_ENV" != '' ]; then
 elif [ -d 'venv' ] ; then
     export PREFIX="venv/bin/"
 fi
+export SAFFIER_TESTCLIENT_TEST_PREFIX=""
 
 set -ex
 
diff --git a/tests/cli/test_custom_template.py b/tests/cli/test_custom_template.py
index e3eb176..7048ffc 100644
--- a/tests/cli/test_custom_template.py
+++ b/tests/cli/test_custom_template.py
@@ -1,10 +1,14 @@
+import asyncio
 import os
 import shutil
 
 import pytest
+import sqlalchemy
 from esmerald import Esmerald
+from sqlalchemy.ext.asyncio import create_async_engine
 
 from tests.cli.utils import run_cmd
+from tests.settings import DATABASE_URL
 
 app = Esmerald(routes=[])
 
@@ -50,7 +54,19 @@ def test_alembic_version():
         assert isinstance(v, int)
 
 
+async def cleanup_prepare_db():
+    engine = create_async_engine(DATABASE_URL, isolation_level="AUTOCOMMIT")
+    try:
+        async with engine.connect() as conn:
+            await conn.execute(sqlalchemy.text("DROP DATABASE test_saffier"))
+    except Exception:
+        pass
+    async with engine.connect() as conn:
+        await conn.execute(sqlalchemy.text("CREATE DATABASE test_saffier"))
+
+
 def test_migrate_upgrade(create_folders):
+    asyncio.run(cleanup_prepare_db())
     (o, e, ss) = run_cmd("tests.cli.main:app", "saffier init -t ./custom")
     assert ss == 0
 
diff --git a/tests/cli/test_custom_template_with_flag.py b/tests/cli/test_custom_template_with_flag.py
index 88841e5..c82c235 100644
--- a/tests/cli/test_custom_template_with_flag.py
+++ b/tests/cli/test_custom_template_with_flag.py
@@ -1,10 +1,14 @@
+import asyncio
 import os
 import shutil
 
 import pytest
+import sqlalchemy
 from esmerald import Esmerald
+from sqlalchemy.ext.asyncio import create_async_engine
 
 from tests.cli.utils import run_cmd
+from tests.settings import DATABASE_URL
 
 app = Esmerald(routes=[])
 
@@ -50,7 +54,19 @@ def test_alembic_version():
         assert isinstance(v, int)
 
 
+async def cleanup_prepare_db():
+    engine = create_async_engine(DATABASE_URL, isolation_level="AUTOCOMMIT")
+    try:
+        async with engine.connect() as conn:
+            await conn.execute(sqlalchemy.text("DROP DATABASE test_saffier"))
+    except Exception:
+        pass
+    async with engine.connect() as conn:
+        await conn.execute(sqlalchemy.text("CREATE DATABASE test_saffier"))
+
+
 def test_migrate_upgrade_with_app_flag(create_folders):
+    asyncio.run(cleanup_prepare_db())
     (o, e, ss) = run_cmd(
         "tests.cli.main:app", "saffier --app tests.cli.main:app init -t ./custom", is_app=False
     )
diff --git a/tests/settings.py b/tests/settings.py
index fb26647..8f3f7c3 100644
--- a/tests/settings.py
+++ b/tests/settings.py
@@ -8,7 +8,7 @@
 )
 DATABASE_ALTERNATIVE_URL = os.environ.get(
     "TEST_DATABASE_ALTERNATIVE_URL",
-    "postgresql+asyncpg://postgres:postgres@localhost:5433/edgy_alt",
+    "postgresql+asyncpg://postgres:postgres@localhost:5433/saffier_alt",
 )
 TEST_DATABASE = "postgresql+asyncpg://postgres:postgres@localhost:5432/test_saffier"