diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..af56f61
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+.DS_Store
+.idea/
diff --git a/CMakeLists.txt b/CMakeLists.txt
index cc82bd3..21b5360 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,6 +3,9 @@ project(Prog3B)
 
 set(CMAKE_CXX_STANDARD 17)
 
+# WICHTIG: wegen raylib + neuer CMake-Version
+set(CMAKE_POLICY_VERSION_MINIMUM 3.5)
+
 include(FetchContent)
 
 FetchContent_Declare(
@@ -20,4 +23,14 @@ add_executable(Prog3B
 )
 
 target_include_directories(Prog3B PRIVATE .)
-target_link_libraries(Prog3B raylib)
\ No newline at end of file
+target_link_libraries(Prog3B raylib)
+
+# macOS-Frameworks nicht vergessen:
+if(APPLE)
+    target_link_libraries(Prog3B
+            "-framework Cocoa"
+            "-framework IOKit"
+            "-framework CoreVideo"
+            "-framework OpenGL"
+    )
+endif()
diff --git a/tests.cpp b/tests.cpp
index 491de37..945e602 100644
--- a/tests.cpp
+++ b/tests.cpp
@@ -1,22 +1,28 @@
 #include <iostream>
+#include <cmath>
 #include "gamematrix.h"
-using namespace Matrix3D;
 
-void test_rotation_z() {
-    Vec3 v{1,0,0};
-    auto R = rot3D(90,'z');
-    Vec3 res = apply(R,v);
-    std::cout << "Rotate Z 90° -> (" << res.x << "," << res.y << "," << res.z << ")\n";
-}
-
-void test_translate() {
-    Vec3 v{0,0,0};
-    auto T = translate({1,2,3});
-    Vec3 res = apply(T,v);
-    std::cout << "Translate -> (" << res.x << "," << res.y << "," << res.z << ")\n";
+bool approx(double a, double b, double eps = 1e-6) {
+    return std::fabs(a - b) < eps;
 }
 
 int main() {
-    test_rotation_z();
-    test_translate();
+    int failed = 0;
+
+    // Beispiel-Test: Rotation um Z 90°
+    std::array<double,3> v = {1,0,0};
+    auto Rz = rot3D(90, 'z'); // ggf. Namespace anpassen
+    auto result = apply(Rz, v);
+    if (!approx(result[0], 0.0) || !approx(result[1], 1.0)) {
+        std::cout << "Test rot3D(Z,90) failed!\n";
+        failed++;
+    }
+
+    // Ausgabe
+    if (failed == 0)
+        std::cout << "ALL TESTS PASSED ✅\n";
+    else
+        std::cout << failed << " TEST(S) FAILED ❌\n";
+
+    return failed;
 }