[lng-odp] [API-NEXT PATCH v2] validation: sched: Improve scheduler validation test to check sched time correctly

[Ivan Khoronzhuk]

Test checks scheduler time correctness using time API.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronz...@linaro.org>
---

Based on api-next as it uses new time API.

Since v1:
- improved a little

 test/validation/scheduler/scheduler.c | 45 +++++++++++++++++++++++++++++++++--
 1 file changed, 43 insertions(+), 2 deletions(-)

diff --git a/test/validation/scheduler/scheduler.c 
b/test/validation/scheduler/scheduler.c
index 2e157a5..daed8cb 100644
--- a/test/validation/scheduler/scheduler.c
+++ b/test/validation/scheduler/scheduler.c
@@ -48,6 +48,8 @@
 #define CHAOS_NDX_TO_PTR(n) ((void *)(uintptr_t)n)
 #define CHAOS_WAIT_FAIL     (5 * ODP_TIME_SEC_IN_NS)
 
+#define ODP_WAIT_TOLERANCE     20000000
+
 /* Test global variables */
 typedef struct {
        int num_workers;
@@ -114,13 +116,52 @@ static int exit_schedule_loop(void)
 
 void scheduler_test_wait_time(void)
 {
+       int i;
+       odp_queue_t queue;
        uint64_t wait_time;
+       odp_queue_param_t qp;
+       odp_time_t lower_limit, upper_limit;
+       odp_time_t start_time, end_time, diff;
 
+       /* check on read */
        wait_time = odp_schedule_wait_time(0);
        wait_time = odp_schedule_wait_time(1);
 
-       wait_time = odp_schedule_wait_time((uint64_t)-1LL);
-       CU_ASSERT(wait_time > 0);
+       /* check ODP_SCHED_NO_WAIT */
+       odp_queue_param_init(&qp);
+       queue = odp_queue_create("dummy_queue", ODP_QUEUE_TYPE_SCHED, &qp);
+       CU_ASSERT_FATAL(queue != ODP_QUEUE_INVALID);
+
+       wait_time = odp_schedule_wait_time(ODP_TIME_SEC_IN_NS);
+       start_time = odp_time_local();
+       odp_schedule(&queue, ODP_SCHED_NO_WAIT);
+       end_time = odp_time_local();
+
+       diff = odp_time_diff(end_time, start_time);
+       lower_limit = ODP_TIME_NULL;
+       upper_limit = odp_time_local_from_ns(ODP_WAIT_TOLERANCE);
+
+       CU_ASSERT(odp_time_cmp(diff, lower_limit) >= 0);
+       CU_ASSERT(odp_time_cmp(diff, upper_limit) <= 0);
+
+       /* check time correctness */
+       start_time = odp_time_local();
+       for (i = 1; i < 6; i++) {
+               odp_schedule(&queue, wait_time);
+               printf("%d..", i);
+       }
+       end_time = odp_time_local();
+
+       diff = odp_time_diff(end_time, start_time);
+       lower_limit = odp_time_local_from_ns(5 * ODP_TIME_SEC_IN_NS -
+                                                       ODP_WAIT_TOLERANCE);
+       upper_limit = odp_time_local_from_ns(5 * ODP_TIME_SEC_IN_NS +
+                                                       ODP_WAIT_TOLERANCE);
+
+       CU_ASSERT(odp_time_cmp(diff, lower_limit) >= 0);
+       CU_ASSERT(odp_time_cmp(diff, upper_limit) <= 0);
+
+       CU_ASSERT_FATAL(odp_queue_destroy(queue) == 0);
 }
 
 void scheduler_test_num_prio(void)
-- 
1.9.1

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