tests: add tests for some affine rotations

test/src/test_affine.h

@@ -266,18 +266,129 @@ TEST_IMPL(GLM_PREFIX, scale_uni) {
 }
 
 TEST_IMPL(GLM_PREFIX, rotate_x) {
+  mat4   m1 = GLM_MAT4_IDENTITY_INIT;
+  vec4   v1 = {0.0f, 1.0f, 0.0f, 1.0f}, v2 = {0.0f, 1.0f, 0.0f, 1.0f};
+
+  GLM(rotate_x)(m1, GLM_PI_2f, m1);
+  glm_mat4_mulv(m1, v1, v1);
+
+  ASSERT(test_eq(v1[0], 0.0f))
+  ASSERT(test_eq(v1[1], 0.0f))
+  ASSERT(test_eq(v1[2], 1.0f))
+
+  glm_vec3_copy(v2, v1);
+
+  GLM(rotate_x)(m1, GLM_PI_2f, m1);
+  glm_mat4_mulv(m1, v1, v1);
+
+  ASSERT(test_eq(v1[0],  0.0f))
+  ASSERT(test_eq(v1[1], -1.0f))
+  ASSERT(test_eq(v1[2],  0.0f))
+
+  glm_vec3_copy(v2, v1);
+
+  GLM(rotate_x)(m1, GLM_PI_2f, m1);
+  glm_mat4_mulv(m1, v1, v1);
+
+  ASSERT(test_eq(v1[0],  0.0f))
+  ASSERT(test_eq(v1[1],  0.0f))
+  ASSERT(test_eq(v1[2], -1.0f))
+
   TEST_SUCCESS
 }
 
 TEST_IMPL(GLM_PREFIX, rotate_y) {
+  mat4   m1 = GLM_MAT4_IDENTITY_INIT;
+  vec4   v1 = {1.0f, 0.0f, 0.0f, 1.0f}, v2 = {1.0f, 0.0f, 0.0f, 1.0f};
+
+  GLM(rotate_y)(m1, GLM_PI_2f, m1);
+  glm_mat4_mulv(m1, v1, v1);
+
+  ASSERT(test_eq(v1[0],  0.0f))
+  ASSERT(test_eq(v1[1],  0.0f))
+  ASSERT(test_eq(v1[2], -1.0f))
+
+  glm_vec3_copy(v2, v1);
+
+  GLM(rotate_y)(m1, GLM_PI_2f, m1);
+  glm_mat4_mulv(m1, v1, v1);
+
+  ASSERT(test_eq(v1[0], -1.0f))
+  ASSERT(test_eq(v1[1],  0.0f))
+  ASSERT(test_eq(v1[2],  0.0f))
+
+  glm_vec3_copy(v2, v1);
+
+  GLM(rotate_y)(m1, GLM_PI_2f, m1);
+  glm_mat4_mulv(m1, v1, v1);
+
+  ASSERT(test_eq(v1[0], 0.0f))
+  ASSERT(test_eq(v1[1], 0.0f))
+  ASSERT(test_eq(v1[2], 1.0f))
+
   TEST_SUCCESS
 }
 
 TEST_IMPL(GLM_PREFIX, rotate_z) {
+  mat4   m1 = GLM_MAT4_IDENTITY_INIT;
+  vec4   v1 = {0.0f, 1.0f, 0.0f, 1.0f}, v2 = {0.0f, 1.0f, 0.0f, 1.0f};
+
+  GLM(rotate_z)(m1, GLM_PI_2f, m1);
+  glm_mat4_mulv(m1, v1, v1);
+
+  ASSERT(test_eq(v1[0], -1.0f))
+  ASSERT(test_eq(v1[1],  0.0f))
+  ASSERT(test_eq(v1[2],  0.0f))
+
+  glm_vec3_copy(v2, v1);
+
+  GLM(rotate_z)(m1, GLM_PI_2f, m1);
+  glm_mat4_mulv(m1, v1, v1);
+
+  ASSERT(test_eq(v1[0],  0.0f))
+  ASSERT(test_eq(v1[1], -1.0f))
+  ASSERT(test_eq(v1[2],  0.0f))
+
+  glm_vec3_copy(v2, v1);
+
+  GLM(rotate_z)(m1, GLM_PI_2f, m1);
+  glm_mat4_mulv(m1, v1, v1);
+
+  ASSERT(test_eq(v1[0], 1.0f))
+  ASSERT(test_eq(v1[1], 0.0f))
+  ASSERT(test_eq(v1[2], 0.0f))
+
   TEST_SUCCESS
 }
 
 TEST_IMPL(GLM_PREFIX, rotate_make) {
+  mat4   m1 = GLM_MAT4_IDENTITY_INIT;
+  vec4   v1 = {1.0f, 0.0f, 0.0f, 1.0f};
+
+  /* rotate X around Y = -Z */
+  GLM(rotate_make)(m1, GLM_PI_2f, GLM_YUP);
+  glm_mat4_mulv(m1, v1, v1);
+
+  ASSERT(test_eq(v1[0],  0.0f))
+  ASSERT(test_eq(v1[1],  0.0f))
+  ASSERT(test_eq(v1[2], -1.0f))
+
+  /* rotate -Z around X = Y */
+  GLM(rotate_make)(m1, GLM_PI_2f, GLM_XUP);
+  glm_mat4_mulv(m1, v1, v1);
+
+  ASSERT(test_eq(v1[0],  0.0f))
+  ASSERT(test_eq(v1[1],  1.0f))
+  ASSERT(test_eq(v1[2],  0.0f))
+
+  /* rotate Y around X = +Z */
+  GLM(rotate_make)(m1, GLM_PI_2f, GLM_XUP);
+  glm_mat4_mulv(m1, v1, v1);
+
+  ASSERT(test_eq(v1[0],  0.0f))
+  ASSERT(test_eq(v1[1],  0.0f))
+  ASSERT(test_eq(v1[2],  1.0f))
+
   TEST_SUCCESS
 }
 

test/tests.h

@@ -27,6 +27,10 @@ TEST_DECLARE(glm_scale_to)
 TEST_DECLARE(glm_scale_make)
 TEST_DECLARE(glm_scale)
 TEST_DECLARE(glm_scale_uni)
+TEST_DECLARE(glm_rotate_x)
+TEST_DECLARE(glm_rotate_y)
+TEST_DECLARE(glm_rotate_z)
+TEST_DECLARE(glm_rotate_make)
 
 TEST_DECLARE(glmc_translate)
 TEST_DECLARE(glmc_translate_to)
@@ -38,6 +42,10 @@ TEST_DECLARE(glmc_scale_to)
 TEST_DECLARE(glmc_scale_make)
 TEST_DECLARE(glmc_scale)
 TEST_DECLARE(glmc_scale_uni)
+TEST_DECLARE(glmc_rotate_x)
+TEST_DECLARE(glmc_rotate_y)
+TEST_DECLARE(glmc_rotate_z)
+TEST_DECLARE(glmc_rotate_make)
 
 /* mat4 */
 TEST_DECLARE(glm_mat4_ucopy)
@@ -570,6 +578,10 @@ TEST_LIST {
   TEST_ENTRY(glm_scale_make)
   TEST_ENTRY(glm_scale)
   TEST_ENTRY(glm_scale_uni)
+  TEST_ENTRY(glm_rotate_x)
+  TEST_ENTRY(glm_rotate_y)
+  TEST_ENTRY(glm_rotate_z)
+  TEST_ENTRY(glm_rotate_make)
 
   TEST_ENTRY(glmc_translate)
   TEST_ENTRY(glmc_translate_to)
@@ -581,6 +593,10 @@ TEST_LIST {
   TEST_ENTRY(glmc_scale_make)
   TEST_ENTRY(glmc_scale)
   TEST_ENTRY(glmc_scale_uni)
+  TEST_ENTRY(glmc_rotate_x)
+  TEST_ENTRY(glmc_rotate_y)
+  TEST_ENTRY(glmc_rotate_z)
+  TEST_ENTRY(glmc_rotate_make)
 
   /* mat4 */
   TEST_ENTRY(glm_mat4_ucopy)