text: import pytest
  from ..determinant_of_a_2x2_matrix import determinant
  
  
  @pytest.mark.parametrize('tuple_x, tuple_y, expected', [
      ((23, 13), (8, 6), 34),
      ((3, 8), (4, 6), -14),
      ((4, 6), (3, 8), 14)
  ])
  def test_determinant(tuple_x, tuple_y, expected):
      actual = determinant(tuple_x, tuple_y)
      assert actual == expected
  