fixture scope
Domain: Testing Quality
🎯 Motivation
fixture scope controls how long a fixture’s value is reused across tests: function, class, module, or session. Choosing the right scope balances speed against test isolation.
📋 Concrete Example
A @pytest.fixture(scope="session") database connection is created once for the entire test run, while scope="function" recreates it for every single test for full isolation.
🔗 Analogy
fixture scope is like deciding whether to refill your water bottle once per class (session) or once per question (function). More refills mean more isolation but slower pacing.