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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 b47f25ac23
commit 2793add0b2
3 changed files with 51 additions and 3 deletions
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2
components/cxx/test_apps/general/main/CMakeLists.txt
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@@ -1,2 +1,2 @@
idf_component_register(SRCS "test_cxx_general.cpp"
PRIV_REQUIRES unity driver)
PRIV_REQUIRES unity driver esp_timer)

28
components/cxx/test_apps/general/main/test_cxx_general.cpp
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2021-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -13,6 +13,9 @@
#include "unity.h"
#include "unity_test_utils.h"
#include "soc/soc.h"
#include <chrono>
#include <thread>
#include "esp_timer.h"
extern "C" void setUp()
{
@@ -292,6 +295,29 @@ TEST_CASE("stack smashing protection CXX", "[stack_smash]")
recur_and_smash_cxx();
}
TEST_CASE("test std::this_thread::sleep_for basic functionality", "[misc]")
{
const int us_per_tick = portTICK_PERIOD_MS * 1000;
// Test sub-tick sleep
const auto short_sleep = std::chrono::microseconds(us_per_tick / 4);
int64_t start = esp_timer_get_time();
std::this_thread::sleep_for(short_sleep);
int64_t end = esp_timer_get_time();
int64_t elapsed_us = end - start;
printf("short sleep: %lld us\n", elapsed_us);
TEST_ASSERT_GREATER_OR_EQUAL(short_sleep.count(), elapsed_us);
// Test multi-tick sleep
const auto long_sleep = std::chrono::microseconds(us_per_tick * 2);
start = esp_timer_get_time();
std::this_thread::sleep_for(long_sleep);
end = esp_timer_get_time();
elapsed_us = end - start;
printf("long sleep: %lld us\n", elapsed_us);
TEST_ASSERT_GREATER_OR_EQUAL(long_sleep.count(), elapsed_us);
}
extern "C" void app_main(void)
{
printf("CXX GENERAL TEST\n");

24
components/newlib/test_apps/newlib/main/test_time.c
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@@ -1,11 +1,12 @@
/*
* SPDX-FileCopyrightText: 2015-2023 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>
@@ -87,6 +88,27 @@ TEST_CASE("Reading RTC registers on APP CPU doesn't affect clock", "[newlib]")
#endif // portNUM_PROCESSORS == 2
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;