3-say_my_name.txt

# 3-say_my_name.txt
# Run: python3 -m doctest -v ./tests/3-say_my_name.txt

Importing function from the module:

    >>> say_my_name = __import__('3-say_my_name').say_my_name

Passing first_name and last_name correctly

    >>> say_my_name("Betty", "Holberton")
    My name is Betty Holberton

Passing first_name and last_name correctly 2

    >>> say_my_name("Hannibal")
    My name is Hannibal 

Passing None as the last_name

    >>> say_my_name("John", None)
    Traceback (most recent call last):
    	      ...
    TypeError: last_name must be a string

Passing None as the first_name

    >>> say_my_name(None)
    Traceback (most recent call last):
    	      ...
    TypeError: first_name must be a string

Passing a number as the first_name

    >>> say_my_name(1)
    Traceback (most recent call last):
    	      ...
    TypeError: first_name must be a string

Passing a number as the last_name

    >>> say_my_name("Betty", 0)
    Traceback (most recent call last):
    	      ...
    TypeError: last_name must be a string

Missing two arguments

    >>> say_my_name()
    Traceback (most recent call last):
    	      ...
    TypeError: say_my_name() missing 1 required positional argument: 'first_name'

Test other data types:
     >>> say_my_name(123, "Last")
     Traceback (most recent call last):
     ...
     TypeError: first_name must be a string

     >>> say_my_name("Saitama", ["Genos", "No"])
     Traceback (most recent call last):
     ...
     TypeError: last_name must be a string

Test extra args:
     >>> say_my_name("Saitama", "Genos", "extra")
     Traceback (most recent call last):
     ...
     TypeError: say_my_name() takes from 1 to 2 positional arguments but 3 were given

Test too few args
     >>> say_my_name()
     Traceback (most recent call last):
     ...
     TypeError: say_my_name() missing 1 required positional argument: 'first_name'

     >>> say_my_name(None)
     Traceback (most recent call last):
     ...
     TypeError: first_name must be a string