CSC 101 Program 1 Test Plan

This is a test plan for programming assignment 1. It's in the format we'll use throughout most of the quarter. The plan consists of test cases, each one of which runs the make_change program with different inputs. For example, the first test case runs the program with the sample inputs shown in the Program 1 writeup. These inputs are a purchase amount of of 216 cents and an amount tendered of 500 cents.

For this assignment, the program being tested must be named "make_change". You make this program with the compiler command

gcc -ansi -pedantic -Wall -Werror make_change.c -o make_change
as described in the writeup.

There is an executable testing script named run.csh. This script implements the test plan defined in the table below. This is the script that will be run on your submitted program to compute your score.

It is strongly recommended that you run this script yourself, before submitting your program. To do so, you need a copy of the script itself, as well as a complete copy of both the inputs and expected-output testing directories. To obtain all of the testing files, run the following UNIX commands from the directory where you've stored your executable make_change program:

cp -rp ~gfisher/classes/101/programs/1/testing .
cd testing
./run.csh
Note that you only need to run the "cp -rp ..." command one time, not every time you want to test your program.

A two-part name is used for the testing files, corresponding to the two program inputs for each test case. For example, the file input/216,500 has the inputs for the first test case. The same file name is used in all of the testing sub-directories:

Before your programs runs, both the output and diffs directories will be empty. After your program runs, the output directory will have one file for each test case run through your program.

If your make_change program passes all of the test cases, the only terminal output you will see is the score, which will be "100/100" points. If one or more cases fail, the script will report the failure(s), and print the appropriate score at the end. The difference files in the diffs directory show the details of how your output differs from the expected output. The testing script uses the UNIX diff utility to compare expected and actual output files. An explanation of how to read UNIX diff files is available at http://www.gnu.org/software/diffutils/manual/diffutils.html#Comparison

The complete test plan has 25 test cases. Each test case is worth 4 points, for a total of 100 points possible. The following table describes what each test case is for.

Test
Case 		Input:
  purchased,tendered 		Correct
  Output 		Description
  of Test Case
1 216,500 expected-output/
216,500 		Sample used in the assignment writeup.
2 0,0 expected-output/
0,0 		Empty case -- nothing purchased, no change.
3 0,100 expected-output/
0,100 		Free case -- $1 purchase, everything back in change.
4 100,100 expected-output/
100,100 		No change case -- $1 purchase, $1 tendered.
5 1,100 expected-output/
1,100 		Max change for $1 purchase.
6 99,100 expected-output/
99,100 		Min change for $1 purchase.
7 1,500 expected-output/
1,500 		Max change for $5 purchase.
8 499,500 expected-output/
499,500 		Min change for $5 purchase.
9 81,500 expected-output/
81,500 		Everything but quarters.
10 69,500 expected-output/
69,500 		Everything but dimes.
11 36,500 expected-output/
36,500 		Everything but nickels.
12 60,500 expected-output/
60,500 		Everything but pennies.
13 57,500 expected-output/
57,500 		Some of each.
14 9,10 expected-output/
9,10 		1 penny in change, 0 for all other denominations, typical case
15 95,100 expected-output/
95,100 		1 nickel in change, 0 for all other denominations, typical case
16 40,50 expected-output/
40,50 		1 dime in change, 0 for all other denominations, typical case
17 75,100 expected-output/
75,100 		1 quarter in change, 0 for all other denominations, typical case
18 400,500 expected-output/
400,500 		1 dollar in change, 0 for all other denominations, typical case
19 1,2 expected-output/
1,2 		1 penny in change, 0 for all other denominations, dumb customer
20 10,15 expected-output/
10,15 		1 nickel in change, 0 for all other denominations, dumb customer
21 10,20 expected-output/
10,20 		1 dime in change, 0 for all other denominations, dumb customer
22 50,75 expected-output/
50,75 		1 quarter in change, 0 for all other denominations, dumb customer
23 100,200 expected-output/
100,200 		1 dollar in change, 0 for all other denominations, dumb customer
24 1,10000000 expected-output/
1,10000000 		Max change from a $100,000 dollar bill
25 9999999,10000000 expected-output/
9999999,10000000 		Min change from a $100,000 dollar bill