[Solved] You want to share a fixture that provides a database connection across multiple test files. You place this fixture in conftest.py: import pytest @pytest.fixture(scope="session") def db_connection():... | PyTest

PyTest - Fixtures

You want to share a fixture that provides a database connection across multiple test files. You place this fixture in conftest.py:

import pytest

@pytest.fixture(scope="session")
def db_connection():
    conn = create_connection()
    yield conn
    conn.close()

What is the best reason to use scope="session" here?

ATo run tests in parallel using the same connection

BTo create a new connection for every test function

CTo close the connection before each test

DTo create the connection once per test session and reuse it in all tests

Step-by-Step Solution

Solution:

Step 1: Understand fixture scopes in pytest
Scope "session" means the fixture is created once for the entire test run and shared across all tests.
Step 2: Apply to database connection use case
Creating the connection once saves time and resources, and closing it after all tests is efficient.
Final Answer:
To create the connection once per test session and reuse it in all tests -> Option D
Quick Check:
Session scope = one setup per test run [OK]

Quick Trick: Use session scope for expensive setup reused by all tests [OK]

Common Mistakes:

MISTAKES

Master "Fixtures" in PyTest

9 interactive learning modes - each teaches the same concept differently

More PyTest Quizzes

You want to share a fixture that provides a database connection across multiple test files. You place this fixture in conftest.py: