diff --git a/tests/test.c b/tests/test.c
index ade140e..fd76f81 100644
--- a/tests/test.c
+++ b/tests/test.c
@@ -9,6 +9,7 @@
 #include "serial.h"
 #include "stack.h"
 #include "synchro.h"
+#include "time.h"
 
 void testPhymem(void)
 {
@@ -234,14 +235,19 @@ static void kthread2(void *strIn)
     }
 }
 
-void sleepThread(void *arg){
+static int initialJiffies = 0;
+void sleepThread(void *arg)
+{
     (void)arg;
-    int secSleep = 0;
-    while (secSleep < 5){
-        printf("Sleeping loop %d\n", secSleep);
+    int secSleep   = 0;
+    initialJiffies = jiffies;
+    while (secSleep < 5) {
+        // printf("Sleeping loop %d\n", secSleep);
         secSleep++;
         kthreadMsleep(1000);
     }
+    unsigned long ellapsedTime = jiffies_to_msecs(jiffies - initialJiffies);
+    assertmsg(ellapsedTime >= 5000 && ellapsedTime < 5100, "ellapsedTime %d\n", ellapsedTime);
     kthreadMsleep(0);
     printf("I should never be showed\n");
     assert(1);
@@ -249,11 +255,12 @@ void sleepThread(void *arg){
 
 struct mutex mutexTest;
 
-void mutThread(void *arg){
+void mutThread(void *arg)
+{
     (void)arg;
     printf("%s started\n", (char *)arg);
     int test = 5;
-    while(test > 0){
+    while (test > 0) {
         mutexLock(&mutexTest);
         printf("%s sleep\n", (char *)arg);
         kthreadMsleep(1000);
@@ -262,6 +269,14 @@ void mutThread(void *arg){
         test--;
     }
 }
+static int haveTimeout = 0;
+void wqThread(void *arg)
+{
+    (void)arg;
+    DECLARE_WAITQUEUE(test);
+    assert(waitTimeout(&test, 1000) == 1);
+    haveTimeout = 1;
+}
 
 void testKthread()
 {
@@ -270,6 +285,9 @@ void testKthread()
     kthreadCreate("Test2", (cpu_kstate_function_arg1_t *)kthread2, (void *)"el ol\n");
     kthreadCreate("Test1", (cpu_kstate_function_arg1_t *)kthread1, (void *)"Hlowrd\n");
     kthreadMsleep(1000);
+    kthreadCreate("wq timeout", wqThread, NULL);
+    kthreadMsleep(2000);
+    assert(haveTimeout);
     kthreadCreate("sleep", sleepThread, NULL);
     kthreadMsleep(5000);
     kthreadCreate("mtest1", mutThread, "mut1");