esp-idf/components/esp_system/test/test_task_wdt.c

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/*
* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Unlicense OR CC0-1.0
*/
#include "sdkconfig.h"
#if CONFIG_ESP_TASK_WDT
#include <stdbool.h>
#include "unity.h"
#include "esp_rom_sys.h"
#include "esp_task_wdt.h"
#include "test_utils.h"
#define TASK_WDT_TIMEOUT_MS 1000
static bool timeout_flag;
void esp_task_wdt_isr_user_handler(void)
{
timeout_flag = true;
}
TEST_CASE("Task WDT task timeout", "[task_wdt]")
{
timeout_flag = false;
esp_task_wdt_config_t twdt_config = {
.timeout_ms = TASK_WDT_TIMEOUT_MS,
.idle_core_mask = 0,
.trigger_panic = false,
};
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_init(&twdt_config));
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_add(NULL));
// Short delay to allow timeout to occur
esp_rom_delay_us(TASK_WDT_TIMEOUT_MS * 1000);
TEST_ASSERT_EQUAL(true, timeout_flag);
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_delete(NULL));
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_deinit());
}
TEST_CASE("Task WDT inactive when no task to watch", "[task_wdt]")
{
/* Make sure a timeout is NOT trigger when we have no task to watch */
timeout_flag = false;
esp_task_wdt_config_t twdt_config = {
.timeout_ms = TASK_WDT_TIMEOUT_MS,
.idle_core_mask = 0,
.trigger_panic = false,
};
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_init(&twdt_config));
esp_rom_delay_us(2 * TASK_WDT_TIMEOUT_MS * 1000);
TEST_ASSERT_EQUAL(false, timeout_flag);
/* Add a task to watch, it should start the watchdog */
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_add(NULL));
esp_rom_delay_us(TASK_WDT_TIMEOUT_MS * 1000);
TEST_ASSERT_EQUAL(true, timeout_flag);
/* Remove the task we just addded and make sure the WDT is stopped*/
timeout_flag = false;
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_delete(NULL));
esp_rom_delay_us(2 * TASK_WDT_TIMEOUT_MS * 1000);
TEST_ASSERT_EQUAL(false, timeout_flag);
/* Success, terminate the test */
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_deinit());
}
TEST_CASE("Task WDT can be reconfigured", "[task_wdt]")
{
/* Make sure a timeout is NOT trigger when we have no task to watch */
timeout_flag = false;
esp_task_wdt_config_t twdt_config = {
.timeout_ms = TASK_WDT_TIMEOUT_MS / 2,
.idle_core_mask = 0,
.trigger_panic = false,
};
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_init(&twdt_config));
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_add(NULL));
/* Timer started, check that a timeout is raised after a while */
esp_rom_delay_us((TASK_WDT_TIMEOUT_MS / 2 + 1) * 1000);
TEST_ASSERT_EQUAL(true, timeout_flag);
/* Reconfigure the timer with a bigger timeout. The timer is restarted
* after reconfiguring it. */
twdt_config.timeout_ms = TASK_WDT_TIMEOUT_MS;
timeout_flag = false;
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_reconfigure(&twdt_config));
esp_rom_delay_us((TASK_WDT_TIMEOUT_MS / 2 + 1) * 1000);
TEST_ASSERT_EQUAL(false, timeout_flag);
/* Should be triggered now, we've spent TASK_WDT_TIMEOUT_MS waiting */
esp_rom_delay_us((TASK_WDT_TIMEOUT_MS / 2 + 1) * 1000);
TEST_ASSERT_EQUAL(true, timeout_flag);
/* Success, terminate the test */
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_delete(NULL));
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_deinit());
}
TEST_CASE("Task WDT task feed", "[task_wdt]")
{
timeout_flag = false;
esp_task_wdt_config_t twdt_config = {
.timeout_ms = TASK_WDT_TIMEOUT_MS,
.idle_core_mask = 0,
.trigger_panic = false,
};
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_init(&twdt_config));
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_add(NULL));
// Feed the watchdog after a short delay
esp_rom_delay_us((TASK_WDT_TIMEOUT_MS * 1000) / 2);
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_reset());
esp_rom_delay_us((TASK_WDT_TIMEOUT_MS * 1000) / 2);
TEST_ASSERT_EQUAL(false, timeout_flag);
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_delete(NULL));
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_deinit());
}
TEST_CASE("Task WDT user timeout", "[task_wdt]")
{
const char *user_name = "test_user";
esp_task_wdt_user_handle_t user_handle;
timeout_flag = false;
esp_task_wdt_config_t twdt_config = {
.timeout_ms = TASK_WDT_TIMEOUT_MS,
.idle_core_mask = 0,
.trigger_panic = false,
};
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_init(&twdt_config));
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_add_user(user_name, &user_handle));
// Short delay to allow timeout to occur
esp_rom_delay_us(TASK_WDT_TIMEOUT_MS * 1000);
TEST_ASSERT_EQUAL(true, timeout_flag);
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_delete_user(user_handle));
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_deinit());
}
TEST_CASE("Task WDT user feed", "[task_wdt]")
{
const char *user_name = "test_user";
esp_task_wdt_user_handle_t user_handle;
timeout_flag = false;
esp_task_wdt_config_t twdt_config = {
.timeout_ms = TASK_WDT_TIMEOUT_MS,
.idle_core_mask = 0,
.trigger_panic = false,
};
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_init(&twdt_config));
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_add_user(user_name, &user_handle));
// Feed the watchdog after a short delay
esp_rom_delay_us((TASK_WDT_TIMEOUT_MS * 1000) / 2);
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_reset_user(user_handle));
esp_rom_delay_us((TASK_WDT_TIMEOUT_MS * 1000) / 2);
TEST_ASSERT_EQUAL(false, timeout_flag);
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_delete_user(user_handle));
TEST_ASSERT_EQUAL(ESP_OK, esp_task_wdt_deinit());
}
#endif // CONFIG_ESP_TASK_WDT