def test_transposing_matrix(self):
m = Matrix([[0, 9, 3, 0], [9, 8, 0, 8], [1, 8, 5, 3], [0, 0, 5, 8]])
result = m.transpose()
assert result == Matrix([[0, 9, 1, 0], [9, 8, 8, 0], [3, 0, 5, 5],
[0, 8, 3, 8]])
def test_transposing_identity_matrix_results_in_identity_matrix(self):
identity_matrix = Matrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0],
[0, 0, 0, 1]])
result = identity_matrix.transpose()
assert result == identity_matrix
