test_cosineDegrees test

src/test/test_funktionen.c

@@ -216,4 +216,10 @@ void test_sineDegrees(void) {
     // Add more test cases for different inputs and expected outputs
 }
 
+void test_cosineDegrees(void) {
+    float result = cosineDegrees(60.0);
+    TEST_ASSERT_FLOAT_WITHIN(0.000001, 0.5, result);
+    // Add more test cases for different inputs and expected outputs
+}
+
 #endif