pytest sqlalchemy plugin for mock
Project description
pytest-sqlalchemy-mock
This plugin provides pytest fixtures to create an in-memory DB instance on tests and dump your raw test data.
Supported Python versions
Python 3.12 or later highly recommended but also might work on Python 3.11.
Installation
Download from PyPI
pip install pytest-sqlalchemy-mock
Building from source
At the top direcotry,
python3 -m build
python3 -m pip install dist/pytest_sqlalchemy_mock-*.whl
or
python3 -m pip install .
Uninstall
python3 -m pip uninstall pytest_sqlalchemy_mock
Usage
Let's assume you have a SQLAlchemy declarative base and some models with it.
models.py
from sqlalchemy import Column, Integer, String
from sqlalchemy.orm import declarative_base
Base = declarative_base()
class User(Base):
__tablename__ = "user"
id = Column(Integer, primary_key=True)
name = Column(String)
Firstly SQLAlchemy base class which is used for declare models should be passed with sqlalchemy_declarative_base
fixture in conftest.py
conftest.py
@pytest.fixture(scope="function")
def sqlalchemy_declarative_base():
return Base
Then in test functions you can use mocked_session
fixture to make query in mocked DB.
test_user_table.py
def test_mocked_session_user_table(mocked_session):
user_data = mocked_session.execute("SELECT * from user;").all()
assert user_data == []
Also, you can dump your mock data to DB before start testing via sqlalchemy_mock_config
fixture like following.
conftest.py
@pytest.fixture(scope="function")
def sqlalchemy_mock_config():
return [("user", [
{
"id": 1,
"name": "Kevin"
},
{
"id": 2,
"name": "Dwight"
}
])]
test_user_table.py
def test_mocked_session_user_class(mocked_session):
user = mocked_session.query(User).filter_by(id=2).first()
assert user.name == "Dwight"
Upcoming Features
- Mock with decorator for specific DB states for specific cases.
- Support to load data from
.json
and.csv
- Async SQLAlchemy support
Project details
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