Add tests for glm_ray_triangle

test/src/test_ray.h

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c), Recep Aslantas.
+ *
+ * MIT License (MIT), http://opensource.org/licenses/MIT
+ * Full license can be found in the LICENSE file
+ */
+
+#include "test_common.h"
+
+TEST_IMPL(GLM_PREFIX, ray_triangle) {
+  // Check whether a simple hit is recognized with the right distance
+  vec3 origin    = {0.0f, 0.0f, 0.0f};
+  vec3 direction = {1.0f, 0.0f, 0.0f};
+  vec3 opposite = {-1.0f, 0.0f, 0.0f};
+  vec3 v0        = {5.0f, -1.0f, 1.0f};
+  vec3 v1        = {5.0f, -1.0f, -1.0f};
+  vec3 v2        = {5.0f, 1.0f, 0.0f};
+  float d;
+  bool hit;
+
+  hit = GLM(ray_triangle)(origin, direction, v0, v1, v2, &d);
+  ASSERT(hit);
+  ASSERT(fabsf(d - 5.0f) <= 0.0000009);
+
+  // Check whether a simple miss works
+  hit = GLM(ray_triangle)(origin, opposite, v0, v1, v2, &d);
+  ASSERT(!hit);
+
+  // Check that we can disregard distance and pass NULL pointer instead
+  hit = GLM(ray_triangle)(origin, direction, v0, v1, v2, NULL);
+  ASSERT(hit);
+
+  TEST_SUCCESS
+}

test/src/tests.c

@@ -23,6 +23,7 @@
 #include "test_plane.h"
 #include "test_affine.h"
 #include "test_affine_mat.h"
+#include "test_ray.h"
 
 #undef GLM
 #undef GLM_PREFIX

test/tests.h

@@ -218,6 +218,9 @@ TEST_DECLARE(clamp)
 /* euler */
 TEST_DECLARE(euler)
 
+/* ray */
+TEST_DECLARE(glm_ray_triangle)
+
 /* quat */
 TEST_DECLARE(MACRO_GLM_QUAT_IDENTITY_INIT)
 TEST_DECLARE(MACRO_GLM_QUAT_IDENTITY)
@@ -905,6 +908,9 @@ TEST_LIST {
   /* euler */
   TEST_ENTRY(euler)
   
+  /* ray */
+  TEST_ENTRY(glm_ray_triangle)
+
   /* quat */
   TEST_ENTRY(MACRO_GLM_QUAT_IDENTITY_INIT)
   TEST_ENTRY(MACRO_GLM_QUAT_IDENTITY)