From e7a0906bc2454d7c2128c897645fc92e111b5f8c Mon Sep 17 00:00:00 2001
From: Recep Aslantas <info@recp.me>
Date: Fri, 21 Feb 2020 11:48:25 +0300
Subject: [PATCH] quat: add tests for quat_rotate

---
 test/src/test_quat.h | 43 +++++++++++++++++++++++++++++++++++++++++++
 test/tests.h         |  4 ++++
 2 files changed, 47 insertions(+)

diff --git a/test/src/test_quat.h b/test/src/test_quat.h
index 21ead20..8037b7d 100644
--- a/test/src/test_quat.h
+++ b/test/src/test_quat.h
@@ -878,6 +878,49 @@ TEST_IMPL(GLM_PREFIX, quat_rotatev) {
 }
 
 TEST_IMPL(GLM_PREFIX, quat_rotate) {
+  mat4   m1 = GLM_MAT4_IDENTITY_INIT, m2;
+  versor q1;
+  vec4   v1 = {1.0f, 0.0f, 0.0f, 1.0f};
+
+  /* rotate X around Y = -Z */
+  glm_quatv(q1, GLM_PI_2f, GLM_YUP);
+  GLM(quat_rotate)(m1, q1, m1);
+  glm_rotate_make(m2, GLM_PI_2f, GLM_YUP);
+  ASSERTIFY(test_assert_mat4_eq(m1, m2))
+  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_mat4_identity(m1);
+  glm_mat4_identity(m2);
+  
+  /* rotate -Z around X = Y */
+  glm_quatv(q1, GLM_PI_2f, GLM_XUP);
+  GLM(quat_rotate)(m1, q1, m1);
+  glm_rotate(m2, GLM_PI_2f, GLM_XUP);
+  ASSERTIFY(test_assert_mat4_eq(m1, m2))
+  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_mat4_identity(m1);
+  glm_mat4_identity(m2);
+
+  /* rotate Y around X = +Z */
+  glm_quatv(q1, GLM_PI_2f, GLM_XUP);
+  GLM(quat_rotate)(m1, q1, m1);
+  glm_rotate(m2, GLM_PI_2f, GLM_XUP);
+  ASSERTIFY(test_assert_mat4_eq(m1, m2))
+  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
 }
 
diff --git a/test/tests.h b/test/tests.h
index 2e9d8a3..f7d957b 100644
--- a/test/tests.h
+++ b/test/tests.h
@@ -166,6 +166,7 @@ TEST_DECLARE(glm_quat_look)
 TEST_DECLARE(glm_quat_for)
 TEST_DECLARE(glm_quat_forp)
 TEST_DECLARE(glm_quat_rotatev)
+TEST_DECLARE(glm_quat_rotate)
 
 TEST_DECLARE(glmc_quat_identity)
 TEST_DECLARE(glmc_quat_identity_array)
@@ -199,6 +200,7 @@ TEST_DECLARE(glmc_quat_look)
 TEST_DECLARE(glmc_quat_for)
 TEST_DECLARE(glmc_quat_forp)
 TEST_DECLARE(glmc_quat_rotatev)
+TEST_DECLARE(glmc_quat_rotate)
 
 /* bezier */
 TEST_DECLARE(bezier)
@@ -680,6 +682,7 @@ TEST_LIST {
   TEST_ENTRY(glm_quat_for)
   TEST_ENTRY(glm_quat_forp)
   TEST_ENTRY(glm_quat_rotatev)
+  TEST_ENTRY(glm_quat_rotate)
 
   TEST_ENTRY(glmc_quat_identity)
   TEST_ENTRY(glmc_quat_identity_array)
@@ -713,6 +716,7 @@ TEST_LIST {
   TEST_ENTRY(glmc_quat_for)
   TEST_ENTRY(glmc_quat_forp)
   TEST_ENTRY(glmc_quat_rotatev)
+  TEST_ENTRY(glmc_quat_rotate)
 
   /* bezier */
   TEST_ENTRY(bezier)