Have you used decorators in tests with PyTest to organize test cases?

Yes, in PyTest, you can use decorators to organize tests and parameterize them. For example, with @pytest.mark.parametrize, you can run a single test with different input data:

import pytest

@pytest.mark.parametrize("input,expected", [
    (2, 4),
    (3, 9),
    (4, 16),
])
def test_square(input, expected):
    assert input ** 2 == expected

This allows you to describe many similar test cases compactly without duplicating code.