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Move checking intersection of ray and sphere in unit tests to check_sphere_intersection

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This commit is contained in:
Eryn Wells 2013-09-08 18:07:30 -07:00
parent 5129a6e545
commit 45b71f18db
1 changed files with 20 additions and 5 deletions
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25
test/test_object.c
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@ -13,7 +13,7 @@
#include "test_suites.h"
void check_sphere_intersection(Object *sphere, Ray ray, int expected_nints);
void check_sphere_intersection(Object *sphere, Ray ray, Vector3 *tvectors, int ntvectors);
START_TEST(test_sphere_does_intersect)
@ -23,25 +23,40 @@ START_TEST(test_sphere_does_intersect)
object_sphere_set_radius(sphere, 1.0);
Vector3 loc, dir;
Vector3 tvectors[2];
Ray ray;
loc = vector_init(0, 0, -5);
dir = vector_init(0, 0, 1);
ray = ray_init(loc, dir);
check_sphere_intersection(sphere, ray, 2);
tvectors[0] = vector_init(0, 0, -1);
tvectors[1] = vector_init(0, 0, 1);
check_sphere_intersection(sphere, ray, tvectors, 2);
loc = vector_init(0, -5, 0);
dir = vector_init(
dir = vector_init(0, 1, 0);
tvectors[0] = vector_init(0, -1, 0);
tvectors[1] = vector_init(0, 1, 0);
check_sphere_intersection(sphere, ray, tvectors, 2);
}
END_TEST
void
check_sphere_intersection(Object *sphere, Ray ray, int expected_nints)
check_sphere_intersection(Object *sphere, Ray ray, Vector3 *tvectors, int ntvectors)
{
float *t;
int nints = object_does_intersect(sphere, ray, &t);
ck_assert(nints == expected_nints);
ck_assert(nints == ntvectors);
Vector3 rp;
for (int i = 0; i < nints; i++) {
rp = ray_parameterize(ray, t[i]);
ck_assert(rp.x == tvectors[i].x);
ck_assert(rp.y == tvectors[i].y);
ck_assert(rp.z == tvectors[i].z);
}
if (nints > 0) {
free(t);
}