Do you have experience writing tests using Pytest?

Yes, I have experience writing tests using Pytest. I used Pytest for writing unit and integration tests because of its simple syntax and powerful features such as fixtures and parameterization.

Example of a simple test with Pytest:

import pytest

def add(a, b):
    return a + b

@pytest.mark.parametrize("a,b,expected", [
    (1, 2, 3),
    (0, 0, 0),
    (-1, 1, 0),
])
def test_add(a, b, expected):
    assert add(a, b) == expected

I also used fixtures for preparing test data and environment setup.