grocerycalc/appunittest1.py

# File Name: appunittest1.py
# Date: April 15, 2017
# Description: This class is for testing write file and read file in app.py
# Method Level Comment: Python Convention (inside function)
__author__ = "Inyoung Choung"

from os import path
import unittest
from implementation import Impl

# testing file IO.
class writefiletest(unittest.TestCase):
    def runTest(self):
        """
        run Test to check if the file exists.
        :return:
        """
        # set a specific path to filepath variable
        filepath = "C:\In-young Choung\Computer Programming\Self Programming Files\grocerycalc\pytest.txt"

        # create a file and write "pythontest"
        Impl.writefile(self, filepath, "pythontest")

        # check if the file is correctly created in the path
        self.assertTrue(path.exists("pytest.txt"))

# class starter
if __name__ == '__main__':
    unittest.main()