This notebook was prepared by Donne Martin. Source and license info is on GitHub.

# Challenge Notebook¶

## Constraints¶

• What is fizz buzz?
• Return the string representation of numbers from 1 to n
• Multiples of 3 -> 'Fizz'
• Multiples of 5 -> 'Buzz'
• Multiples of 3 and 5 -> 'FizzBuzz'
• Can we assume the inputs are valid?
• No
• Can we assume this fits memory?
• Yes

## Test Cases¶

* None -> Exception
* < 1 -> Exception
* 15 ->
[
'1',
'2',
'Fizz',
'4',
'Buzz',
'Fizz',
'7',
'8',
'Fizz',
'Buzz',
'11',
'Fizz',
'13',
'14',
'FizzBuzz'
]


## Algorithm¶

Refer to the Solution Notebook. If you are stuck and need a hint, the solution notebook's algorithm discussion might be a good place to start.

## Code¶

In [ ]:
class Solution(object):

def fizz_buzz(self, num):
# TODO: Implement me
pass


## Unit Test¶

The following unit test is expected to fail until you solve the challenge.

In [ ]:
# %load test_fizz_buzz.py
import unittest

class TestFizzBuzz(unittest.TestCase):

def test_fizz_buzz(self):
solution = Solution()
self.assertRaises(TypeError, solution.fizz_buzz, None)
self.assertRaises(ValueError, solution.fizz_buzz, 0)
expected = [
'1',
'2',
'Fizz',
'4',
'Buzz',
'Fizz',
'7',
'8',
'Fizz',
'Buzz',
'11',
'Fizz',
'13',
'14',
'FizzBuzz'
]
self.assertEqual(solution.fizz_buzz(15), expected)
print('Success: test_fizz_buzz')

def main():
test = TestFizzBuzz()
test.test_fizz_buzz()

if __name__ == '__main__':
main()


## Solution Notebook¶

Review the Solution Notebook for a discussion on algorithms and code solutions.