==========================================
Test Plan for Grade Translation program
==========================================

The test plan will involve testing valid and expected inputs to determine that the program
chooses the correct letter grade and modifier for a selection of values.  It will also
include testing the edge cases for the interval 0 <= n <= 100 and testing values 
beyond the interval.

This test will NOT include possible user errors involving completely invalid inputs such
as non-numeric input nor floating point (i.e. real) numbers since we have not yet
learned how to recover from those.

****** Testing valid inputs **********
input: 89
expected output: B+

input: 72
expected output: C-

input: 95
expected output: A

This tests three of five letter grades and all of the modifiers


****** Testing edge cases *************
input: 0
expected output: F

input: 100
expected output: A+

****** Testing invalid input *************
input: -1
expected output: "I'm sorry, your response was not between 0 and 100.  Please try again."

input: 101
expected output: "I'm sorry, your response was not between 0 and 100.  Please try again."

====================================
Test Script
====================================
Script started on Thu Sep 26 14:47:03 2019

****** Testing valid inputs **********
bash-3.2$ ./grade
Example grade conversion program
^M
Please enter a numeric value between 0 and 100, as a whole number: 89^M
B+^M
bash-3.2$ ./grade^M
Example grade conversion program^M
^M
Please enter a numeric value between 0 and 100, as a whole number: 72^M
C-^M
bash-3.2$ ./grade^M
Example grade conversion program^M
^M
Please enter a numeric value between 0 and 100, as a whole number: 95^M
A^M
bash-3.2$ ./grade^M
Example grade conversion program^M
^M

****** Testing edge cases *************

Please enter a numeric value between 0 and 100, as a whole number: 0^M
F^M
^M
bash-3.2$ ./grade^M
Example grade conversion program^M
^M
Please enter a numeric value between 0 and 100, as a whole number: 100^M
A+^M
bash-3.2$ ./grade^M
Example grade conversion program^M
^M

****** Testing invalid input *************
Please enter a numeric value between 0 and 100, as a whole number: -1^M
I'm sorry, your response was not between 0 and 100.  Please try again.^M
bash-3.2$ ./grade^M
Example grade conversion program^M
^M
Please enter a numeric value between 0 and 100, as a whole number: 101^M
I'm sorry, your response was not between 0 and 100.  Please try again.^M
bash-3.2$ exit^M
exit^M

Script done on Thu Sep 26 14:48:24 2019


==========================================
Conclusion
=========================================

The program works as expected on valid input, including edge cases.  It also handles
expected user input errors when the input is out of range.  

With the exception that it cannot yet handle non-integer input, the program is working
correctly.