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geometry_test.c
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geometry_test.c
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/*
* geometry_test.c
* Andy Sayler
* CSCI 3308
* Summer 2014
*
* This file containsunit tests for geometry.c
*
* Requires http://check.sourceforge.net/
*
*/
#include <stdlib.h>
#include <check.h>
#include "geometry.h"
/* coord_2d_eq Test */
START_TEST(test_2d_eq)
{
coord_2d_t a;
coord_2d_t b;
a.x = b.x = 0;
a.y = b.y = 0;
ck_assert(coord_2d_eq(&a, &b));
a.x = b.x = 9.99;
a.y = b.y = 9.99;
ck_assert(coord_2d_eq(&a, &b));
a.x = b.x = 3.33;
a.y = b.y = 9.99;
ck_assert(coord_2d_eq(&a, &b));
a.x = 3.33;
a.y = 9.99;
b.x = 3.33;
b.y = 10.99;
ck_assert(!coord_2d_eq(&a, &b));
a.x = 3.33;
a.y = 9.99;
b.x = 2.33;
b.y = 9.99;
ck_assert(!coord_2d_eq(&a, &b));
a.x = 1.11;
a.y = 2.22;
b.x = 7.77;
b.y = 8.88;
ck_assert(!coord_2d_eq(&a, &b));
}
END_TEST
/* coord_2d_dist Test */
START_TEST(test_2d_dist)
{
coord_2d_t a;
coord_2d_t b;
a.x = b.x = 0;
a.y = b.y = 0;
ck_assert(coord_2d_dist(&a, &b) == 0.0);
a.x = 0;
a.y = 0;
b.x = 3;
b.y = 0;
ck_assert(coord_2d_dist(&a, &b) == 3.0);
a.x = 0;
a.y = 0;
b.x = 0;
b.y = 3;
ck_assert(coord_2d_dist(&a, &b) == 3.0);
a.x = 0;
a.y = 0;
b.x = 3;
b.y = 4;
ck_assert(coord_2d_dist(&a, &b) == 5.0);
a.x = 1;
a.y = 2;
b.x = 4;
b.y = 6;
ck_assert(coord_2d_dist(&a, &b) == 5.0);
}
END_TEST
/* coord_2d_midpoint Test */
START_TEST(test_2d_midpoint)
{
coord_2d_t a;
coord_2d_t b;
coord_2d_t mid;
coord_2d_t exp;
a.x = b.x = 0;
a.y = b.y = 0;
coord_2d_midpoint(&mid, &a, &b);
exp.x = 0;
exp.y = 0;
ck_assert(coord_2d_eq(&mid, &exp));
a.x = 0;
a.y = 0;
b.x = 3;
b.y = 0;
coord_2d_midpoint(&mid, &a, &b);
exp.x = 1.5;
exp.y = 0;
ck_assert(coord_2d_eq(&mid, &exp));
a.x = 0;
a.y = 0;
b.x = 0;
b.y = 3;
coord_2d_midpoint(&mid, &a, &b);
exp.x = 0;
exp.y = 1.5;
ck_assert(coord_2d_eq(&mid, &exp));
a.x = 0;
a.y = 0;
b.x = 3;
b.y = 3;
coord_2d_midpoint(&mid, &a, &b);
exp.x = 1.5;
exp.y = 1.5;
ck_assert(coord_2d_eq(&mid, &exp));
a.x = 1;
a.y = 2;
b.x = 3;
b.y = 4;
coord_2d_midpoint(&mid, &a, &b);
exp.x = 2;
exp.y = 3;
ck_assert(coord_2d_eq(&mid, &exp));
}
END_TEST
/* coord_2d_midpoint Test */
START_TEST(test_2d_area)
{
coord_2d_t a;
coord_2d_t b;
coord_2d_t c;
a.x = 1;
a.y = 1;
b.x = 3;
b.y = 1;
c.x = 1;
c.y = 3;
ck_assert(coord_2d_area_triangle(&a, &b, &c) == 2);
a.x = 0;
a.y = 0;
b.x = 3;
b.y = 0;
c.x = 0;
c.y = 3;
ck_assert(coord_2d_area_triangle(&a, &b, &c) == 4.5);
}
END_TEST
/* coord_2d Test Suite */
Suite* coord_2d_suite(void)
{
/* Create Suite */
Suite* s = suite_create("coord_2d");
/* Setup Test Cases */
TCase* tc_2d_eq = tcase_create("coord_2d_eq");
tcase_add_test(tc_2d_eq, test_2d_eq);
TCase* tc_2d_dist = tcase_create("coord_2d_dist");
tcase_add_test(tc_2d_dist, test_2d_dist);
TCase* tc_2d_midpoint = tcase_create("coord_2d_midpoint");
tcase_add_test(tc_2d_midpoint, test_2d_midpoint);
TCase* tc_2d_tri_area = tcase_create("ccoord_2d_area_triangle");
tcase_add_test(tc_2d_tri_area, test_2d_area);
/* Add Cases to Suite */
suite_add_tcase(s, tc_2d_eq);
suite_add_tcase(s, tc_2d_dist);
suite_add_tcase(s, tc_2d_midpoint);
suite_add_tcase(s, tc_2d_tri_area);
/* Return Suite */
return s;
}
/* main: run test suites and set exit status */
int main(void){
int failed = 0;
Suite* s = coord_2d_suite();
SRunner* sr = srunner_create(s);
srunner_run_all(sr, CK_VERBOSE);
failed = srunner_ntests_failed(sr);
srunner_free(sr);
return (failed ? EXIT_FAILURE : EXIT_SUCCESS);
}