test fixes

examples/test_code/example.c

@@ -0,0 +1,16 @@
+#include <stdio.h>
+
+void greet(const char* name) {
+    printf("Hello, %s!\n", name);
+}
+
+int add(int a, int b) {
+    return a + b;
+}
+
+int main() {
+    greet("C");
+    int result = add(5, 3);
+    printf("5 + 3 = %d\n", result);
+    return 0;
+}