def test_transposed():
a = MyMatrix([[1, 3, 4], [5, 7, 2]])
assert (a.transposed().get_data() == [[1, 5], [3, 7], [4, 2]])
assert (a.get_data() == [[1, 3, 4], [5, 7, 2]])
a = MyMatrix([[1, 3], [5, 7], [9, 0]])
assert (a.transposed().get_data() == [[1, 5, 9], [3, 7, 0]])
assert (a.get_data() == [[1, 3], [5, 7], [9, 0]])
def test_flipped_up_down():
a = MyMatrix([[1, 3, 4], [5, 7, 2]])
assert (a.flipped_up_down().get_data() == [[5, 7, 2], [1, 3, 4]])
assert (a.get_data() == [[1, 3, 4], [5, 7, 2]])
def test_flipped_left_right():
a = MyMatrix([[1, 3, 4], [5, 7, 2]])
assert (a.flipped_left_right().get_data() == [[4, 3, 1], [2, 7, 5]])
assert (a.get_data() == [[1, 3, 4], [5, 7, 2]])