Final

Project 2

CMSC 330

May 8, 2016

Joshua Farquhar

Project 2 Documentation

Test Plan:

For the test plan we want a positive and negative result. To that end we will have three tests. The first will consist of a correct input file that should work. The second will use an input file known to contain errors in the syntax. The third will use an input file known to contain mathematical errors (divide by zero…etc).

Test Plan 1: Good input.

Test one uses an input file that contains the following:

(x+(2|4)), x=5; /* 6 */

(1:2?(x>0)), x=5; /* 1 */

(x + (y * 3)), x = 5, y = 2; /* 11 */

(x | y), x = 0, y = 0; /* 0 */

(x | y), x = -2, y = 0; /* 1 */

(x | (y | z)), x = 0, y = 0, z = 1; /* 1 */

(x & y), x = 0, y = 0; /* 0 */

(x & y), x = -2, y = -1; /* 1 */

(x & (y & z)), x = 0, y = 0, z = 0; /* 0 */

(x & (y & z)), x = 1, y = 1, z = 1; /* 1 */

(x = y), x = 0, y = 0; /* 1 */

(x = y), x = 1, y = 0; /* 0 */

(x : y ? z), x = 1, y = 0, z = 0; /* 0 */

(x : y ? z), x = 1, y= 2,z = 1; /* 1 */

(x !), x = 0; /* 1 */

(x !), x = 1; /* 0 */

(x>1), x=5; /* 1 */

(x<5), x=1; /* 1 */

(x=3), x=6; /* 0 */

(x&3), x=8; /* 1 */

(x > y), x = 0, y = 5; /* 0 */

(x > y), x = 9, y = 0; /* 1 */

(x < y), x = 6, y = 2; /* 0 */

(x < y), x = -2, y = 4; /* 1 */

This test attempted to use as many combinations of the mathematical operators as we could without being excessive. On each line enclosed by “/* */” is what that line should be evaluated to by the program. The results from command line are:

As expected this input file is parsed correctly and the program outputs the exact values that we want.

Test Plan 2: Bad syntax

For this test we use the same input file but alter the first few lines:

"(x+(2|4)), x=5; /* 6 */

:(1:2?(x>0)), x=5; /* 1 */

()((x + (y * 3)), x = 5, y = 2; /* 11 */

(x | y), x = 0, y = 0; /* 0 */

(x | y), x = -2, y = 0; /* 1 */

(x | (y | z)), x = 0, y = 0, z = 1; /* 1 */

(x & y), x = 0, y...