fix: rework tests using unity test framework.

test/test_main.c

@@ -1,43 +1,19 @@
 #include "test_vec.h"
+#include "unity/unity.h"
 
 #include <stdio.h>
 
-#define SUCCESS(X) printf("\n--------- All %s tests succeeded ---------\n\n", X);
+void setUp() {}
+void tearDown() {}
 
 int main() {
 
-    // --- Vector3 ---
-    
-    addVector3_test();
-    subVector3_test();
-    scalVector3_test();
-    dotVector3_test();
-    lenVector3_test();
-    normVector3_test();
-    lerpVector3_test();
-    crosVector3_test();
-    anglVector3_test();
-    projVector3_test();
-    reflVector3_test();
-    distVector3_test();
-    rotaVector3_test();
-    SUCCESS("Vector3");
+    UNITY_BEGIN();
 
-    // --- Vector4 ---
-    
-    addVector4_test();
-    subVector4_test();
-    scaleVector4_test();
-    dotVector4_test();
-    lenVector4_test();
-    normVector4_test();
-    lerpVector4_test();
-    anglVector4_test();
-    projVector4_test();
-    reflVector4_test();
-    distVector4_test();
-    SUCCESS("Vector4");
+    runVector3_test();
+    runVector4_test();
 
-    SUCCESS("");
+    UNITY_END();
+    
     return 0;
 }