For instance, let$$s say we are creating a class called Point to store a $2-$D point. We might create the following

skeleton code and unittest for our first TDD loop:

Point.py

class Point:

def $\_\_$init$\_\_($self$,$ x$,$ y$)$:

$"""$Initializes a $2-$D point with x$-$ and y$-$ coordinates"""

pass

TestPoint.py

import unittest

from Point import Point # import class Point from file Point.py

class TestPoint$($unittest$.$TestCase$)$:

def setUp$($self$)$:

$"""$Create some points for future tests"""

self.p$1=$ Point$(3,4)$