grocerycalc/appunittest2.py

# File Name: appunittest2.py
# Modified Date: March 24, 2017
# Description: This class is for testing message of show error function.
# Method Level Comment: Python Convention (inside function)
__author__ = "Inyoung Choung"

import os
from os import path
import unittest
from implementation import Impl

# testing Show Error function.
class testShowError(unittest.TestCase):
    def runTest(self):
        """
        run Test to check if result is equal to initialized string.
        :return:
        """
        # initialize value to message variable.
        message = str("Here is a test warning message.")

        # pass the predefined message into alert_message function.
        result = Impl.display_message(self, message)

        # check if the two values in the parameter are matched.
        self.assertEqual(result, message)

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