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tests: posix: tests for nanosleep(2)

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This commit provides test-cases for nanosleep(2)

Signed-off-by: Christopher Friedt <chrisfriedt@gmail.com>
This commit is contained in:
Christopher Friedt 2020-05-26 07:48:33 -04:00 • committed by Carles Cufí
commit 72e7debca5
2 changed files with 250 additions and 1 deletions
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26
tests/posix/common/src/main.c
View file

@ -19,6 +19,18 @@ extern void test_posix_pthread_execution(void);
extern void test_posix_pthread_termination(void);
extern void test_posix_multiple_threads_single_key(void);
extern void test_posix_single_thread_multiple_keys(void);
extern void test_nanosleep_NULL_NULL(void);
extern void test_nanosleep_NULL_notNULL(void);
extern void test_nanosleep_notNULL_NULL(void);
extern void test_nanosleep_notNULL_notNULL(void);
extern void test_nanosleep_req_is_rem(void);
extern void test_nanosleep_n1_0(void);
extern void test_nanosleep_0_n1(void);
extern void test_nanosleep_n1_n1(void);
extern void test_nanosleep_0_1000000000(void);
extern void test_nanosleep_0_1(void);
extern void test_nanosleep_0_500000000(void);
extern void test_nanosleep_1_0(void);
void test_main(void)
{
@ -34,7 +46,19 @@ void test_main(void)
ztest_unit_test(test_posix_mqueue),
ztest_unit_test(test_posix_realtime),
ztest_unit_test(test_posix_timer),
ztest_unit_test(test_posix_rw_lock)
ztest_unit_test(test_posix_rw_lock),
ztest_unit_test(test_nanosleep_NULL_NULL),
ztest_unit_test(test_nanosleep_NULL_notNULL),
ztest_unit_test(test_nanosleep_notNULL_NULL),
ztest_unit_test(test_nanosleep_notNULL_notNULL),
ztest_unit_test(test_nanosleep_req_is_rem),
ztest_unit_test(test_nanosleep_n1_0),
ztest_unit_test(test_nanosleep_0_n1),
ztest_unit_test(test_nanosleep_n1_n1),
ztest_unit_test(test_nanosleep_0_1000000000),
ztest_unit_test(test_nanosleep_0_1),
ztest_unit_test(test_nanosleep_0_500000000),
ztest_unit_test(test_nanosleep_1_0)
);
ztest_run_test_suite(posix_apis);
}

225
tests/posix/common/src/nanosleep.c Normal file
View file

@ -0,0 +1,225 @@
/*
* Copyright (c) 2018 Friedt Professional Engineering Services, Inc
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <ztest.h>
#include <errno.h>
#include <posix/time.h>
#include <stdint.h>
#include <sys_clock.h>
/* TODO: Upper bounds check when hr timers are available */
#define NSEC_PER_TICK \
(NSEC_PER_SEC / CONFIG_SYS_CLOCK_TICKS_PER_SEC)
#define NSEC_PER_CYCLE \
(NSEC_PER_SEC / CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC)
/** req and rem are both NULL */
void test_nanosleep_NULL_NULL(void)
{
int r = nanosleep(NULL, NULL);
zassert_equal(r, -1, "actual: %d expected: %d", r, -1);
zassert_equal(errno, EFAULT, "actual: %d expected: %d", errno, EFAULT);
}
/**
* req is NULL, rem is non-NULL (all-zero)
*
* Expect rem to be the same when function returns
*/
void test_nanosleep_NULL_notNULL(void)
{
struct timespec rem = {};
errno = 0;
int r = nanosleep(NULL, &rem);
zassert_equal(r, -1, "actual: %d expected: %d", r, -1);
zassert_equal(errno, EFAULT, "actual: %d expected: %d",
errno, EFAULT);
zassert_equal(rem.tv_sec, 0, "actual: %d expected: %d",
rem.tv_sec, 0);
zassert_equal(rem.tv_nsec, 0, "actual: %d expected: %d",
rem.tv_nsec, 0);
}
/**
* req is non-NULL (all-zero), rem is NULL
*
* Expect req to be the same when function returns
*/
void test_nanosleep_notNULL_NULL(void)
{
struct timespec req = {};
errno = 0;
int r = nanosleep(&req, NULL);
zassert_equal(req.tv_sec, 0, "actual: %d expected: %d",
req.tv_sec, 0);
zassert_equal(req.tv_nsec, 0, "actual: %d expected: %d",
req.tv_nsec, 0);
zassert_equal(r, 0, "actual: %d expected: %d", r, -1);
zassert_equal(errno, 0, "actual: %d expected: %d", errno, 0);
}
/**
* req is non-NULL (all-zero), rem is non-NULL (all-zero)
*
* Expect req & rem to be the same when function returns
*/
void test_nanosleep_notNULL_notNULL(void)
{
struct timespec req = {};
struct timespec rem = {};
errno = 0;
int r = nanosleep(&req, &rem);
zassert_equal(r, 0, "actual: %d expected: %d", r, -1);
zassert_equal(errno, 0, "actual: %d expected: %d", errno, 0);
zassert_equal(req.tv_sec, 0, "actual: %d expected: %d",
req.tv_sec, 0);
zassert_equal(req.tv_nsec, 0, "actual: %d expected: %d",
req.tv_nsec, 0);
zassert_equal(rem.tv_sec, 0, "actual: %d expected: %d",
rem.tv_sec, 0);
zassert_equal(rem.tv_nsec, 0, "actual: %d expected: %d",
rem.tv_nsec, 0);
}
/**
* req and rem point to the same timespec
*
* Normative spec says they may be the same.
* Expect rem to be zero after returning.
*/
void test_nanosleep_req_is_rem(void)
{
struct timespec ts = {0, 1};
errno = 0;
int r = nanosleep(&ts, &ts);
zassert_equal(r, 0, "actual: %d expected: %d", r, -1);
zassert_equal(errno, 0, "actual: %d expected: %d", errno, 0);
zassert_equal(ts.tv_sec, 0, "actual: %d expected: %d",
ts.tv_sec, 0);
zassert_equal(ts.tv_nsec, 0, "actual: %d expected: %d",
ts.tv_nsec, 0);
}
/** req tv_sec is -1 */
void test_nanosleep_n1_0(void)
{
struct timespec req = {-1, 0};
errno = 0;
int r = nanosleep(&req, NULL);
zassert_equal(r, -1, "actual: %d expected: %d", r, -1);
zassert_equal(errno, EINVAL, "actual: %d expected: %d", errno, EFAULT);
}
/** req tv_nsec is -1 */
void test_nanosleep_0_n1(void)
{
struct timespec req = {0, -1};
errno = 0;
int r = nanosleep(&req, NULL);
zassert_equal(r, -1, "actual: %d expected: %d", r, -1);
zassert_equal(errno, EINVAL, "actual: %d expected: %d", errno, EFAULT);
}
/** req tv_sec and tv_nsec are both -1 */
void test_nanosleep_n1_n1(void)
{
struct timespec req = {-1, -1};
errno = 0;
int r = nanosleep(&req, NULL);
zassert_equal(r, -1, "actual: %d expected: %d", r, -1);
zassert_equal(errno, EINVAL, "actual: %d expected: %d", errno, EFAULT);
}
/** req tv_sec is 0 tv_nsec is 10^9 */
void test_nanosleep_0_1000000000(void)
{
struct timespec req = {0, 1000000000};
errno = 0;
int r = nanosleep(&req, NULL);
zassert_equal(r, -1, "actual: %d expected: %d", r, -1);
zassert_equal(errno, EINVAL, "actual: %d expected: %d", errno, EFAULT);
}
static void common(const uint32_t s, uint32_t ns)
{
uint32_t then;
uint32_t now;
uint32_t dt;
uint64_t dt_ns;
int r;
struct timespec req = {s, ns};
struct timespec rem = {0, 0};
errno = 0;
then = k_cycle_get_32();
r = nanosleep(&req, &rem);
now = k_cycle_get_32();
zassert_equal(r, 0, "actual: %d expected: %d", r, -1);
zassert_equal(errno, 0, "actual: %d expected: %d", errno, 0);
zassert_equal(req.tv_sec, s, "actual: %d expected: %d",
req.tv_sec, s);
zassert_equal(req.tv_nsec, ns, "actual: %d expected: %d",
req.tv_nsec, ns);
zassert_equal(rem.tv_sec, 0, "actual: %d expected: %d",
rem.tv_sec, 0);
zassert_equal(rem.tv_nsec, 0, "actual: %d expected: %d",
rem.tv_nsec, 0);
ns += s * NSEC_PER_SEC;
dt = now - then;
dt_ns = k_cyc_to_ns_ceil64(dt);
if (dt_ns == 0) {
/* k_cycle_get_32() does not seem to be completely accurate on
* some virtual platforms in CI (some function calls to
* nanosleep reportedly take 0ns).
*/
dt_ns = 1;
}
printk("dt_ns: %llu\n", dt_ns);
zassert_true(dt_ns >= ns, "expected dt_ns >= %d: actual: %d", (int)ns,
(int)dt_ns);
/* TODO: Upper bounds check when hr timers are available */
}
/** sleep for 1ns */
void test_nanosleep_0_1(void)
{
common(0, 1);
}
/** sleep for 500000000ns */
void test_nanosleep_0_500000000(void)
{
common(0, 500000000);
}
/** sleep for 1s */
void test_nanosleep_1_0(void)
{
common(1, 0);
}