From f6560df848ef196040e7ba3a1d041f03093e4e53 Mon Sep 17 00:00:00 2001
From: Alexandre Abadie <alexandre.abadie@inria.fr>
Date: Sat, 4 Nov 2017 16:51:03 +0100
Subject: [PATCH] tests/thread_flags: minor improvements in test application

---
 tests/thread_flags/main.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/tests/thread_flags/main.c b/tests/thread_flags/main.c
index 757377344e..7c3e9c65c9 100644
--- a/tests/thread_flags/main.c
+++ b/tests/thread_flags/main.c
@@ -19,6 +19,7 @@
  */
 
 #include <stdio.h>
+#include <stdlib.h>
 #include "thread.h"
 #include "xtimer.h"
 
@@ -26,6 +27,8 @@ static char stack[THREAD_STACKSIZE_MAIN];
 
 volatile unsigned done;
 
+#define TIMEOUT   (100UL * US_PER_MS)
+
 static void *_thread(void *arg)
 {
     (void) arg;
@@ -66,7 +69,7 @@ static void _set(thread_t *thread, thread_flags_t flags)
 
 int main(void)
 {
-    puts("main starting");
+    puts("START");
 
     kernel_pid_t pid = thread_create(stack,
                   sizeof(stack),
@@ -89,12 +92,17 @@ int main(void)
     puts("main: setting 100ms timeout...");
     xtimer_t t;
     uint32_t before = xtimer_now_usec();
-    xtimer_set_timeout_flag(&t, 100000);
+    xtimer_set_timeout_flag(&t, TIMEOUT);
     thread_flags_wait_any(THREAD_FLAG_TIMEOUT);
     uint32_t diff = xtimer_now_usec() - before;
     printf("main: timeout triggered. time passed: %uus\n", (unsigned)diff);
 
-    puts("test finished.");
+    if (abs(diff - TIMEOUT) < 500) {
+        puts("SUCCESS");
+    }
+    else {
+        puts("FAILURE");
+    }
 
     return 0;
 }