How can I use fixtures in pytest for advanced testing?

How can I use fixtures in pytest for advanced testing?

You can use fixtures in pytest to set up preconditions for your tests. They allow you to create reusable test setups.

Can you show me an example of a fixture?

Sure! Here's a simple fixture example:

import pytest

def sample_fixture():
    return 42

@pytest.fixture
def my_fixture():
    return sample_fixture()

def test_using_fixture(my_fixture):
    assert my_fixture == 42

How do I use fixtures with multiple test functions?

You can use the same fixture across multiple test functions by simply including it as a parameter in each test function. pytest will handle the setup and teardown automatically.

What if I need to use a fixture that requires setup and teardown?

You can define setup and teardown logic within the fixture using yield. Here's an example:

@pytest.fixture
def resource_setup():
    # Setup code
    resource = create_resource()
    yield resource
    # Teardown code
    resource.cleanup()