From 48977a012bcf439212f6790575cbfe55618d282f Mon Sep 17 00:00:00 2001
From: Recep Aslantas <info@recp.me>
Date: Wed, 12 Jul 2017 20:46:05 +0300
Subject: [PATCH] test: add some tests for mat4

---
 test/src/test_common.c |  2 +-
 test/src/test_mat4.c   | 29 +++++++++++++++++++++++++++++
 2 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/test/src/test_common.c b/test/src/test_common.c
index 43aa423..7afd42f 100644
--- a/test/src/test_common.c
+++ b/test/src/test_common.c
@@ -27,7 +27,7 @@ test_assert_mat4_eq(mat4 m1, mat4 m2) {
   for (i = 0; i < m; i++) {
     for (j = 0; j < n; j++) {
       for (k = 0; k < m; k++)
-        assert_true(fabsf(m1[i][j] - m2[i][j]) <= FLT_EPSILON);
+        assert_true(fabsf(m1[i][j] - m2[i][j]) <= 0.0001);
     }
   }
 #undef m
diff --git a/test/src/test_mat4.c b/test/src/test_mat4.c
index a026058..ff4764e 100644
--- a/test/src/test_mat4.c
+++ b/test/src/test_mat4.c
@@ -16,6 +16,7 @@ test_mat4(void **state) {
   mat4  m2 = GLM_MAT4_IDENTITY_INIT;
   mat4  m3;
   mat4  m4 = GLM_MAT4_ZERO_INIT;
+  mat4  m5;
   int   i, j, k;
 
   /* test identity matrix multiplication */
@@ -48,4 +49,32 @@ test_mat4(void **state) {
   /* test pre compiled */
   glmc_mat4_mul(m1, m2, m3);
   test_assert_mat4_eq(m3, m4);
+
+  /* test inverse precise */
+  glm_mat4_inv_precise(m3, m4);
+  glm_mat4_inv_precise(m4, m5);
+  test_assert_mat4_eq(m3, m5);
+
+  glmc_mat4_inv_precise(m3, m4);
+  glmc_mat4_inv_precise(m4, m5);
+  test_assert_mat4_eq(m3, m5);
+
+   /* test inverse rcp */
+  glm_mat4_inv(m3, m4);
+  glm_mat4_inv(m4, m5);
+  test_assert_mat4_eq(m3, m5);
+
+  glmc_mat4_inv(m3, m4);
+  glmc_mat4_inv(m4, m5);
+  test_assert_mat4_eq(m3, m5);
+
+  /* print */
+  glm_mat4_print(m3, stderr);
+  glm_mat4_print(m4, stderr);
+
+  /* test determinant */
+  assert_int_equal(glm_mat4_det(m1), glmc_mat4_det(m1));
+#if defined( __SSE2__ )
+  assert_int_equal(glmc_mat4_det(m1), glm_mat4_det_sse2(m1));
+#endif
 }