tests/pthread: small improvements

tests/pthread/main.c

@@ -23,6 +23,9 @@
 
 #include "pthread.h"
 
+#define FACTORIAL_PARAM     (6U)
+#define FACTORIAL_EXPECTED  (720U)
+
 void *run(void *parameter) {
     size_t n = (size_t) parameter;
     size_t factorial = 1;
@@ -45,14 +48,21 @@ int main(void) {
     pthread_t th_id;
     pthread_attr_t th_attr;
 
-    size_t arg = 6;
-    printf("main parameter = %u\n", (unsigned int) arg);
+    size_t arg = FACTORIAL_PARAM;
+    printf("main: parameter = %u\n", (unsigned int) arg);
 
     pthread_attr_init(&th_attr);
     pthread_create(&th_id, &th_attr, run, (void *) arg);
     size_t res;
     pthread_join(th_id, (void **) &res);
     printf("main: factorial = %u\n", (unsigned int) res);
-    puts("main: finished");
+
+    if (res == FACTORIAL_EXPECTED) {
+        puts("SUCCESS");
+    }
+    else {
+        puts("FAILURE");
+    }
+
     return 0;
 }