def test_determinant_11(self):
     self.assertEqual(matrix.find_det([[1]]), 1, "Should be 1")
 def test_determinant_44(self):
     self.assertEqual(
         matrix.find_det([[1, 2, 3, 4], [0, 1, 2, 3], [0, 0, 1, 2],
                          [0, 0, 0, 2]]), 2, "Should be 2")
 def test_determinant_1(self):
     self.assertIs(matrix.find_det([1]), False, "Should be False")
 def test_determinant_22_tuple(self):
     self.assertEqual(matrix.find_det(((1, 2), (0, 2))), 2, "Should be 2")