conftest.py

import pytest
from tools import TestDataCollection
from representations import Project


@pytest.fixture(scope='function')
def test_driver(request, selenium):
    from test_automation.tools.test_driver import TestDriver
    return TestDriver(selenium)


@pytest.fixture(scope='module')
def test_db(request):
    tdc = TestDataCollection()
    request.addfinalizer(tdc.clear)
    return tdc


@pytest.fixture(scope='function', autouse=True)
def clean_test_db(request, test_db):
    def fin():
        test_db.clear(request.scope)
    request.addfinalizer(fin)


@pytest.fixture(scope='module')
def mini_universe(request, test_db):
    project = Project.create("My Project")
    test_db.add(project, request.scope)
    return test_db

user_test.py

import pytest
from representations import User


@pytest.fixture(scope='function')
def local_universe(request, mini_universe):
    user = User.create("Ronny")
    mini_universe.add(user, request.scope)
    return mini_universe


class TestBoards:

    def test_register_user(self, mini_universe, test_driver):
        page = LoginPage(test_driver)
        page.register_user("User Name", mini_universe.get('Project', 'My Project'))
        assert "User Name" in page.get_registered_users()

    def test_login_user(self, local_universe, test_driver):
        page = LoginPage(test_driver)
        page.login(local_universe.get('User', 'Ronny'), local_universe.get('Project', 'My Project'))
        assert "Welcome {}!".format(user.name) in page.get_title()