[Python] Using pytest and mongoengine, data is created in the main database instead of a test...

I've installed these packages:

python -m pip install pytest pytest-django


And created a fixture:

# core/services/tests/fixtures/checkout.py

import pytest

from bson import ObjectId
from datetime import datetime

from core.models.src.checkout import Checkout


@pytest.fixture(scope="session")
def checkout(mongo_db):
checkout = Checkout(
user_id=59,
amount=35_641,
)
checkout.save()
return checkout


and imported it in the conftest.py in the same directory:

# core/service/tests/conftest.py

from core.service.tests.fixtures.checkout import *


Here's how I connect to the test database:

# conftest.py

import pytest

from mongoengine import connect, disconnect, connection

@pytest.fixture(scope="session", autouse=True)
def mongo_db():
connect(
db="db",
name="testdb",
alias="test_db",
host="mongodb://localhost:27017/",
serverSelectionTimeoutMS=5000,
)

connection._connections.clear()

yield

disconnect()



And this is my actual test:

import json
import pytest

from core.service.checkout import a_function


def test_a_function(checkout):
assert checkout.value is False
response = a_function(id=checkout.id, value=True)
assert response.status_code == 200
response_data = json.loads(response.content.decode("UTF-8"))
assert response_data.get("success", None) is True
checkout.reload()
assert checkout.value is True



But every time I run pytest, a new record is created in the main database. How can I fix this to use a test database?

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