From 6b32b5dc35e6d1cf24c6f5b49c50918c7406994f Mon Sep 17 00:00:00 2001
From: Recep Aslantas <info@recp.me>
Date: Fri, 21 Feb 2020 16:57:09 +0300
Subject: [PATCH] tests: add tests for affine scales

---
 test/src/test_affine.h | 86 ++++++++++++++++++++++++++++++++++++++++++
 test/tests.h           | 16 ++++++++
 2 files changed, 102 insertions(+)

diff --git a/test/src/test_affine.h b/test/src/test_affine.h
index 7a846db..d01777f 100644
--- a/test/src/test_affine.h
+++ b/test/src/test_affine.h
@@ -164,18 +164,104 @@ TEST_IMPL(GLM_PREFIX, translate_make) {
 }
 
 TEST_IMPL(GLM_PREFIX, scale_to) {
+  mat4 t1, t2, t3, t4, t5;
+  mat4 m1, m2;
+  vec4 v1 = {1.0f, 2.0f, 3.0f, 1.0f}, v2;
+
+  glm_mat4_identity(m1);
+  GLM(scale_to)(m1, (vec3){13.0f, 11.0f, 7.0f}, m2);
+  glm_mat4_mulv(m2, v1, v2);
+
+  ASSERT(test_eq(v2[0], 13.0f))
+  ASSERT(test_eq(v2[1], 22.0f))
+  ASSERT(test_eq(v2[2], 21.0f))
+  ASSERT(test_eq(v2[3], 1.0f))
+
+  glm_mat4_identity(m1);
+  GLM(scale_to)(m1, (vec3){1.0f, -1.0f, -5.0f}, m2);
+  glm_mat4_mulv(m2, v2, v2);
+
+  ASSERT(test_eq(v2[0],  13.0f))
+  ASSERT(test_eq(v2[1], -22.0f))
+  ASSERT(test_eq(v2[2], -105.0f))
+  ASSERT(test_eq(v2[3],  1.0f))
+
   TEST_SUCCESS
 }
 
 TEST_IMPL(GLM_PREFIX, scale_make) {
+  mat4 t1, t2, t3, t4, t5;
+  mat4 m1;
+  vec4 v1 = {1.0f, 2.0f, 3.0f, 1.0f}, v2;
+
+  GLM(scale_make)(m1, (vec3){13.0f, 11.0f, 7.0f});
+  glm_mat4_mulv(m1, v1, v2);
+
+  ASSERT(test_eq(v2[0], 13.0f))
+  ASSERT(test_eq(v2[1], 22.0f))
+  ASSERT(test_eq(v2[2], 21.0f))
+  ASSERT(test_eq(v2[3], 1.0f))
+
+  GLM(scale_make)(m1, (vec3){1.0f, -1.0f, -5.0f});
+  glm_mat4_mulv(m1, v2, v2);
+
+  ASSERT(test_eq(v2[0],  13.0f))
+  ASSERT(test_eq(v2[1], -22.0f))
+  ASSERT(test_eq(v2[2], -105.0f))
+  ASSERT(test_eq(v2[3],  1.0f))
+
   TEST_SUCCESS
 }
 
 TEST_IMPL(GLM_PREFIX, scale) {
+  mat4 t1, t2, t3, t4, t5;
+  mat4 m1;
+  vec4 v1 = {1.0f, 2.0f, 3.0f, 1.0f}, v2;
+
+  glm_mat4_identity(m1);
+  GLM(scale)(m1, (vec3){13.0f, 11.0f, 7.0f});
+  glm_mat4_mulv(m1, v1, v2);
+
+  ASSERT(test_eq(v2[0], 13.0f))
+  ASSERT(test_eq(v2[1], 22.0f))
+  ASSERT(test_eq(v2[2], 21.0f))
+  ASSERT(test_eq(v2[3], 1.0f))
+
+  glm_mat4_identity(m1);
+  GLM(scale)(m1, (vec3){1.0f, -1.0f, -5.0f});
+  glm_mat4_mulv(m1, v2, v2);
+
+  ASSERT(test_eq(v2[0],  13.0f))
+  ASSERT(test_eq(v2[1], -22.0f))
+  ASSERT(test_eq(v2[2], -105.0f))
+  ASSERT(test_eq(v2[3],  1.0f))
+
   TEST_SUCCESS
 }
 
 TEST_IMPL(GLM_PREFIX, scale_uni) {
+  mat4 t1, t2, t3, t4, t5;
+  mat4 m1;
+  vec4 v1 = {1.0f, 2.0f, 3.0f, 1.0f}, v2;
+
+  glm_mat4_identity(m1);
+  GLM(scale_uni)(m1, 13.0f);
+  glm_mat4_mulv(m1, v1, v2);
+
+  ASSERT(test_eq(v2[0], 13.0f))
+  ASSERT(test_eq(v2[1], 26.0f))
+  ASSERT(test_eq(v2[2], 39.0f))
+  ASSERT(test_eq(v2[3], 1.0f))
+
+  glm_mat4_identity(m1);
+  GLM(scale_uni)(m1, -5.0f);
+  glm_mat4_mulv(m1, v2, v2);
+
+  ASSERT(test_eq(v2[0], -65.0f))
+  ASSERT(test_eq(v2[1], -130.0f))
+  ASSERT(test_eq(v2[2], -195.0f))
+  ASSERT(test_eq(v2[3],  1.0f))
+
   TEST_SUCCESS
 }
 
diff --git a/test/tests.h b/test/tests.h
index 0add347..dd7b2a0 100644
--- a/test/tests.h
+++ b/test/tests.h
@@ -23,6 +23,10 @@ TEST_DECLARE(glm_translate_x)
 TEST_DECLARE(glm_translate_y)
 TEST_DECLARE(glm_translate_z)
 TEST_DECLARE(glm_translate_make)
+TEST_DECLARE(glm_scale_to)
+TEST_DECLARE(glm_scale_make)
+TEST_DECLARE(glm_scale)
+TEST_DECLARE(glm_scale_uni)
 
 TEST_DECLARE(glmc_translate)
 TEST_DECLARE(glmc_translate_to)
@@ -30,6 +34,10 @@ TEST_DECLARE(glmc_translate_x)
 TEST_DECLARE(glmc_translate_y)
 TEST_DECLARE(glmc_translate_z)
 TEST_DECLARE(glmc_translate_make)
+TEST_DECLARE(glmc_scale_to)
+TEST_DECLARE(glmc_scale_make)
+TEST_DECLARE(glmc_scale)
+TEST_DECLARE(glmc_scale_uni)
 
 /* mat4 */
 TEST_DECLARE(glm_mat4_ucopy)
@@ -558,6 +566,10 @@ TEST_LIST {
   TEST_ENTRY(glm_translate_y)
   TEST_ENTRY(glm_translate_z)
   TEST_ENTRY(glm_translate_make)
+  TEST_ENTRY(glm_scale_to)
+  TEST_ENTRY(glm_scale_make)
+  TEST_ENTRY(glm_scale)
+  TEST_ENTRY(glm_scale_uni)
 
   TEST_ENTRY(glmc_translate)
   TEST_ENTRY(glmc_translate_to)
@@ -565,6 +577,10 @@ TEST_LIST {
   TEST_ENTRY(glmc_translate_y)
   TEST_ENTRY(glmc_translate_z)
   TEST_ENTRY(glmc_translate_make)
+  TEST_ENTRY(glmc_scale_to)
+  TEST_ENTRY(glmc_scale_make)
+  TEST_ENTRY(glmc_scale)
+  TEST_ENTRY(glmc_scale_uni)
 
   /* mat4 */
   TEST_ENTRY(glm_mat4_ucopy)