factorial Funktion test

src/test/test_funktionen.c

@@ -55,4 +55,11 @@ void test_power(void) {
     // Add more test cases for different inputs and expected outputs
 }
 
+void test_factorial(void) {
+    int result = factorial(5);
+    TEST_ASSERT_EQUAL_INT(120, result);
+    // Add more test cases for different inputs and expected outputs
+}
+
+
 #endif