Not in this case. I already fixed it, so it should be fine now.

the first one
[1, 45.0, 1035.0, 16215.0, 194580.0, 1906884.0, 15890700.0, 115775100.0, 752538150.0, 4431613550.0, 23930713170.0, 119653565850.0, 558383307300.0]

You can see it's the second one there with this simple test:

def generate_diagonal(n, l):
    return [1]

That's your code's problem, not a kata issue.

That's your code's problem, actual and expected are flipped in Python's random tests