An implementation of fizzbuzz

fizzbuzz.py

def fizzbuzz(stop: int):
    """On multiples of 3, print 'fizz'
    On multiples of 5, print 'buzz'
    On multiples of both, print 'fizzbuzz'
    For all other numbers, print the number
    """
    result = []
    for x in range(1, stop+1):
        if x % 15 == 0:
            result.append('fizzbuzz')
        elif x % 3 == 0:
            result.append('fizz')
        elif x % 5 == 0:
            result.append('buzz')
        else:
            result.append(x)

    return result


test_cases = (
    (-1, []),
    (0, []),
    (1, [1]),
    (3, [1, 2, 'fizz']),
    (15, [1, 2, 'fizz', 4, 'buzz', 'fizz', 7, 8, 'fizz', 'buzz', 11, 'fizz', 13, 14, 'fizzbuzz']),
)

for stop, expected in test_cases:
    actual = fizzbuzz(stop)
    try:
        assert actual == expected
        print('PASS!')
    except:
        print(actual, expected)