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test(newlib): Added unit tests for usleep and sleep_for functions

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This commit adds unit tests to verify the basic functionality of
usleep() and this_thread::sleep_for() std functions.
This commit is contained in:
Sudeep Mohanty
2025-04-17 10:38:04 +02:00
parent d5d7bb61e5
commit ec07f61291
3 changed files with 51 additions and 3 deletions
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components/newlib/test_apps/newlib/main/test_time.c
+23 -1
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@@ -1,11 +1,12 @@
/*
* SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2015-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <unistd.h>
#include "unity.h"
#include <time.h>
#include <sys/time.h>
@@ -77,6 +78,27 @@ TEST_CASE("Reading RTC registers on APP CPU doesn't affect clock", "[newlib]")
#endif // (CONFIG_FREERTOS_NUMBER_OF_CORES == 2) && CONFIG_IDF_TARGET_ARCH_XTENSA
TEST_CASE("test usleep basic functionality", "[newlib]")
{
const int us_per_tick = portTICK_PERIOD_MS * 1000;
// Test sub-tick sleep such that usleep() uses ROM delay path
const int short_sleep_us = us_per_tick / 4;
int64_t start = esp_timer_get_time();
TEST_ASSERT_EQUAL(0, usleep(short_sleep_us));
int64_t end = esp_timer_get_time();
printf("short sleep: %lld us\n", end - start);
TEST_ASSERT_GREATER_OR_EQUAL(short_sleep_us, end - start);
// Test multi-tick sleep using vTaskDelay path
const int long_sleep_us = us_per_tick * 2;
start = esp_timer_get_time();
TEST_ASSERT_EQUAL(0, usleep(long_sleep_us));
end = esp_timer_get_time();
printf("long sleep: %lld us\n", end - start);
TEST_ASSERT_GREATER_OR_EQUAL(long_sleep_us, end - start);
}
TEST_CASE("test adjtime function", "[newlib]")
{
struct timeval tv_time;