re-organise test structure

test/src/test_common.c

@@ -0,0 +1,36 @@
+/*
+ * Copyright (c), Recep Aslantas.
+ * MIT License (MIT), http://opensource.org/licenses/MIT
+ */
+
+#include "test_common.h"
+#include <stdlib.h>
+
+void
+test_rand_mat4(mat4 dest) {
+  int i, j;
+
+  srand((unsigned int)time(NULL));
+  for (i = 0; i < 4; i++) {
+    for (j = 0; j < 4; j++) {
+      dest[i][j] = drand48();
+    }
+  }
+}
+
+void
+test_assert_mat4_eq(mat4 m1, mat4 m2) {
+  int i, j, k;
+
+#define m 4
+#define n 4
+  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);
+    }
+  }
+#undef m
+#undef n
+}
+