def test_should_get_the_greatest_product_of_6_numbers_in_a_6x6_matrix(self):
matrix = Matrix([[2, 1, 5, 8, 2, 7], [1, 9, 4, 1, 3, 2], [5, 2, 3, 9, 2, 4], [9, 1, 2, 10, 13, 9], [9, 82, 1, 23, 5, 8], [9, 12, 48, 1, 2, 8]])
self.assertEqual(matrix.greatest_column_product(6), 32256)
def test_should_get_the_greatest_product_of_2_numbers_in_a_3x3_matrix(self):
matrix = Matrix([[2, 1, 5], [1, 9, 4], [5, 2, 3]])
self.assertEqual(matrix.greatest_column_product(2), 20)
