Multiple test files for testing

test.c

@@ -2,6 +2,8 @@
 #include <inttypes.h>
 #include <stdlib.h>
 
+extern void dupa2(void);
+
 void dupa(void) {
     printf("a\n");
     printf("b\n");
@@ -19,6 +21,8 @@ int main(void)
         }
     }
 
+    dupa2();
+
     int *a = NULL;
     *a = 6969;