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

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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" #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) START_TEST(test_sphere_does_intersect)
@ -23,25 +23,40 @@ START_TEST(test_sphere_does_intersect)
object_sphere_set_radius(sphere, 1.0); object_sphere_set_radius(sphere, 1.0);
Vector3 loc, dir; Vector3 loc, dir;
Vector3 tvectors[2];
Ray ray; Ray ray;
loc = vector_init(0, 0, -5); loc = vector_init(0, 0, -5);
dir = vector_init(0, 0, 1); dir = vector_init(0, 0, 1);
ray = ray_init(loc, dir); 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); 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 END_TEST
void void
check_sphere_intersection(Object *sphere, Ray ray, int expected_nints) check_sphere_intersection(Object *sphere, Ray ray, Vector3 *tvectors, int ntvectors)
{ {
float *t; float *t;
int nints = object_does_intersect(sphere, ray, &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) { if (nints > 0) {
free(t); free(t);
} }