Python unit testing exercise

sum_n_numbers.md

Sum of N numbers

Write a function that can sum up numbers:

• It should receive a sequence of n numbers.
• If no argument is provided, return sum of numbers 1..100.
• Look closely to the type of the function's default argument ...

Proposed solution

def sum_numbers(numbers=None):
    if numbers==None:
        return sum(range(1, 101))
    return sum(numbers)

Unit testing

Write two test at least for:

• Check output with default args
• Check output with different values