git.ozlabs.org Git - ccan/blob - ccan/time/test/run.c

   1 #include <ccan/time/time.h>
   2 #include <ccan/time/time.c>
   3 #include <ccan/tap/tap.h>
   4
   5 int main(void)
   6 {
   7         struct timeval t1, t2, t3, zero = { 0, 0 };
   8
   9         plan_tests(46);
  10
  11         /* Test time_now */
  12         t1 = time_now();
  13         t2 = time_now();
  14
  15         /* Test time_sub. */
  16         t3 = time_sub(t2, t1);
  17         ok1(t3.tv_sec > 0 || t3.tv_usec >= 0);
  18         t3 = time_sub(t2, t2);
  19         ok1(t3.tv_sec == 0 && t3.tv_usec == 0);
  20         t3 = time_sub(t1, t1);
  21         ok1(t3.tv_sec == 0 && t3.tv_usec == 0);
  22
  23         /* Test time_eq */
  24         ok1(time_eq(t1, t1));
  25         ok1(time_eq(t2, t2));
  26         ok1(!time_eq(t1, t3));
  27         ok1(!time_eq(t2, t3));
  28
  29         /* Make sure t2 > t1. */
  30         t3.tv_sec = 0;
  31         t3.tv_usec = 1;
  32         t2 = time_add(t2, t3);
  33
  34         /* Test time_less and time_greater. */
  35         ok1(!time_eq(t1, t2));
  36         ok1(!time_greater(t1, t2));
  37         ok1(time_less(t1, t2));
  38         ok1(time_greater(t2, t1));
  39         ok1(!time_less(t2, t1));
  40         t3.tv_sec = 0;
  41         t3.tv_usec = 999999;
  42         t2 = time_add(t2, t3);
  43         ok1(!time_eq(t1, t2));
  44         ok1(!time_greater(t1, t2));
  45         ok1(time_less(t1, t2));
  46         ok1(time_greater(t2, t1));
  47         ok1(!time_less(t2, t1));
  48
  49         t3 = time_sub(t2, zero);
  50         ok1(time_eq(t3, t2));
  51         t3 = time_sub(t2, t2);
  52         ok1(time_eq(t3, zero));
  53
  54         /* time_from_msec / time_to_msec */
  55         t3 = time_from_msec(500);
  56         ok1(t3.tv_sec == 0);
  57         ok1(t3.tv_usec == 500000);
  58         ok1(time_to_msec(t3) == 500);
  59
  60         t3 = time_from_msec(1000);
  61         ok1(t3.tv_sec == 1);
  62         ok1(t3.tv_usec == 0);
  63         ok1(time_to_msec(t3) == 1000);
  64
  65         t3 = time_from_msec(1500);
  66         ok1(t3.tv_sec == 1);
  67         ok1(t3.tv_usec == 500000);
  68         ok1(time_to_msec(t3) == 1500);
  69
  70         /* time_from_usec */
  71         t3 = time_from_usec(500000);
  72         ok1(t3.tv_sec == 0);
  73         ok1(t3.tv_usec == 500000);
  74         ok1(time_to_usec(t3) == 500000);
  75
  76         t3 = time_from_usec(1000000);
  77         ok1(t3.tv_sec == 1);
  78         ok1(t3.tv_usec == 0);
  79         ok1(time_to_usec(t3) == 1000000);
  80
  81         t3 = time_from_usec(1500000);
  82         ok1(t3.tv_sec == 1);
  83         ok1(t3.tv_usec == 500000);
  84         ok1(time_to_usec(t3) == 1500000);
  85
  86         /* Test wrapunder */
  87         t3 = time_sub(time_sub(t2, time_from_msec(500)), time_from_msec(500));
  88         ok1(t3.tv_sec == t2.tv_sec - 1);
  89         ok1(t3.tv_usec == t2.tv_usec);
  90
  91         /* time_divide and time_multiply */
  92         t1.tv_usec = 100;
  93         t1.tv_sec = 100;
  94
  95         t3 = time_divide(t1, 2);
  96         ok1(t3.tv_sec == 50);
  97         ok1(t3.tv_usec == 50);
  98
  99         t3 = time_divide(t1, 100);
 100         ok1(t3.tv_sec == 1);
 101         ok1(t3.tv_usec == 1);
 102
 103         t3 = time_multiply(t3, 100);
 104         ok1(time_eq(t3, t1));
 105
 106         t3 = time_divide(t1, 200);
 107         ok1(t3.tv_sec == 0);
 108         ok1(t3.tv_usec == 500000);
 109
 110         return exit_status();
 111 }