time: new module for dealing with time.

[ccan] / ccan / time / test / run.c

diff --git a/ccan/time/test/run.c b/ccan/time/test/run.c
new file mode 100644 (file)
index 0000000..8039169
--- /dev/null
+++ b/ccan/time/test/run.c
@@ -0,0 +1,111 @@
+#include <ccan/time/time.h>
+#include <ccan/time/time.c>
+#include <ccan/tap/tap.h>
+
+int main(void)
+{
+       struct timeval t1, t2, t3, zero = { 0, 0 };
+
+       plan_tests(46);
+
+       /* Test time_now */
+       t1 = time_now();
+       t2 = time_now();
+
+       /* Test time_sub. */
+       t3 = time_sub(t2, t1);
+       ok1(t3.tv_sec > 0 || t3.tv_usec >= 0);
+       t3 = time_sub(t2, t2);
+       ok1(t3.tv_sec == 0 && t3.tv_usec == 0);
+       t3 = time_sub(t1, t1);
+       ok1(t3.tv_sec == 0 && t3.tv_usec == 0);
+
+       /* Test time_eq */
+       ok1(time_eq(t1, t1));
+       ok1(time_eq(t2, t2));
+       ok1(!time_eq(t1, t3));
+       ok1(!time_eq(t2, t3));
+
+       /* Make sure t2 > t1. */
+       t3.tv_sec = 0;
+       t3.tv_usec = 1;
+       t2 = time_add(t2, t3);
+
+       /* Test time_less and time_greater. */
+       ok1(!time_eq(t1, t2));
+       ok1(!time_greater(t1, t2));
+       ok1(time_less(t1, t2));
+       ok1(time_greater(t2, t1));
+       ok1(!time_less(t2, t1));
+       t3.tv_sec = 0;
+       t3.tv_usec = 999999;
+       t2 = time_add(t2, t3);
+       ok1(!time_eq(t1, t2));
+       ok1(!time_greater(t1, t2));
+       ok1(time_less(t1, t2));
+       ok1(time_greater(t2, t1));
+       ok1(!time_less(t2, t1));
+
+       t3 = time_sub(t2, zero);
+       ok1(time_eq(t3, t2));
+       t3 = time_sub(t2, t2);
+       ok1(time_eq(t3, zero));
+
+       /* time_from_msec / time_to_msec */
+       t3 = time_from_msec(500);
+       ok1(t3.tv_sec == 0);
+       ok1(t3.tv_usec == 500000);
+       ok1(time_to_msec(t3) == 500);
+
+       t3 = time_from_msec(1000);
+       ok1(t3.tv_sec == 1);
+       ok1(t3.tv_usec == 0);
+       ok1(time_to_msec(t3) == 1000);
+
+       t3 = time_from_msec(1500);
+       ok1(t3.tv_sec == 1);
+       ok1(t3.tv_usec == 500000);
+       ok1(time_to_msec(t3) == 1500);
+
+       /* time_from_usec */
+       t3 = time_from_usec(500000);
+       ok1(t3.tv_sec == 0);
+       ok1(t3.tv_usec == 500000);
+       ok1(time_to_usec(t3) == 500000);
+
+       t3 = time_from_usec(1000000);
+       ok1(t3.tv_sec == 1);
+       ok1(t3.tv_usec == 0);
+       ok1(time_to_usec(t3) == 1000000);
+
+       t3 = time_from_usec(1500000);
+       ok1(t3.tv_sec == 1);
+       ok1(t3.tv_usec == 500000);
+       ok1(time_to_usec(t3) == 1500000);
+
+       /* Test wrapunder */
+       t3 = time_sub(time_sub(t2, time_from_msec(500)), time_from_msec(500));
+       ok1(t3.tv_sec == t2.tv_sec - 1);
+       ok1(t3.tv_usec == t2.tv_usec);
+
+       /* time_divide and time_multiply */
+       t1.tv_usec = 100;
+       t1.tv_sec = 100;
+
+       t3 = time_divide(t1, 2);
+       ok1(t3.tv_sec == 50);
+       ok1(t3.tv_usec == 50);
+
+       t3 = time_divide(t1, 100);
+       ok1(t3.tv_sec == 1);
+       ok1(t3.tv_usec == 1);
+
+       t3 = time_multiply(t3, 100);
+       ok1(time_eq(t3, t1));
+
+       t3 = time_divide(t1, 200);
+       ok1(t3.tv_sec == 0);
+       ok1(t3.tv_usec == 500000);
+
+       return exit_status();
+}