esp-idf/components/mqtt/test/test_mqtt_client_broker.c

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/*
* SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
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*
* SPDX-License-Identifier: Apache-2.0
*/
#include "freertos/FreeRTOS.h"
#include "freertos/event_groups.h"
#include "mqtt_client.h"
#include "esp_log.h"
#include "esp_mac.h"
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#define WAIT_FOR_EVENT(event) \
TEST_ASSERT_TRUE(xEventGroupWaitBits(s_event_group, event, pdTRUE, pdTRUE, pdMS_TO_TICKS(COMMON_OPERATION_TIMEOUT)) & event);
#define TEST_ASSERT_TRUE(condition) TEST_ASSERT_TRUE_LINE(condition, __LINE__)
#define TEST_ASSERT_TRUE_LINE(condition, line) \
do { \
if (!(condition)) { \
ESP_LOGE("test_mqtt_client_broker.c", \
"Assertion failed in line %d", line); \
return false; \
} \
} while(0)
static const int COMMON_OPERATION_TIMEOUT = 10000;
static const int CONNECT_BIT = BIT0;
static const int DISCONNECT_BIT = BIT1;
static const int DATA_BIT = BIT2;
static EventGroupHandle_t s_event_group;
static char* append_mac(const char* string)
{
uint8_t mac[6];
char *id_string = NULL;
esp_read_mac(mac, ESP_MAC_WIFI_STA);
asprintf(&id_string, "%s_%02x%02X%02X", string, mac[3], mac[4], mac[5]);
return id_string;
}
static void mqtt_data_handler_qos(void *handler_args, esp_event_base_t base, int32_t event_id, void *event_data)
{
if (event_id == MQTT_EVENT_DATA) {
esp_mqtt_event_handle_t event = event_data;
int * qos = handler_args;
*qos = event->qos;
xEventGroupSetBits(s_event_group, DATA_BIT);
}
}
static void mqtt_data_handler_lwt(void *handler_args, esp_event_base_t base, int32_t event_id, void *event_data)
{
if (event_id == MQTT_EVENT_DATA) {
esp_mqtt_event_handle_t event = event_data;
ESP_LOGI("mqtt-lwt", "MQTT_EVENT_DATA");
ESP_LOGI("mqtt-lwt", "TOPIC=%.*s", event->topic_len, event->topic);
ESP_LOGI("mqtt-lwt", "DATA=%.*s", event->data_len, event->data);
if (strncmp(event->data, "no-lwt", event->data_len) == 0) {
// no lwt, just to indicate the test has finished
xEventGroupSetBits(s_event_group, DATA_BIT);
} else {
// count up any potential lwt message
int * count = handler_args;
*count = *count + 1;
ESP_LOGE("mqtt-lwt", "count=%d", *count);
}
}
}
static void mqtt_data_handler_subscribe(void *handler_args, esp_event_base_t base, int32_t event_id, void *event_data)
{
if (event_id == MQTT_EVENT_SUBSCRIBED) {
esp_mqtt_event_handle_t event = event_data;
ESP_LOGI("mqtt-subscribe", "MQTT_EVENT_SUBSCRIBED, data size=%d", event->data_len);
int * sub_payload = handler_args;
if (event->data_len == 1) {
ESP_LOGI("mqtt-subscribe", "DATA=%d", *(uint8_t*)event->data);
*sub_payload = *(uint8_t*)event->data;
}
xEventGroupSetBits(s_event_group, DATA_BIT);
}
}
static void mqtt_event_handler(void *handler_args, esp_event_base_t base, int32_t event_id, void *event_data)
{
switch ((esp_mqtt_event_id_t)event_id) {
case MQTT_EVENT_CONNECTED:
xEventGroupSetBits(s_event_group, CONNECT_BIT);
break;
case MQTT_EVENT_DISCONNECTED:
xEventGroupSetBits(s_event_group, DISCONNECT_BIT);
break;
default:
break;
}
}
bool mqtt_connect_disconnect(void)
{
const esp_mqtt_client_config_t mqtt_cfg = {
.broker.address.uri = CONFIG_MQTT_TEST_BROKER_URI,
.network.disable_auto_reconnect = true,
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};
s_event_group = xEventGroupCreate();
esp_mqtt_client_handle_t client = esp_mqtt_client_init(&mqtt_cfg);
TEST_ASSERT_TRUE(NULL != client );
esp_mqtt_client_register_event(client, ESP_EVENT_ANY_ID, mqtt_event_handler, NULL);
TEST_ASSERT_TRUE(ESP_OK == esp_mqtt_client_start(client));
WAIT_FOR_EVENT(CONNECT_BIT);
esp_mqtt_client_disconnect(client);
WAIT_FOR_EVENT(DISCONNECT_BIT);
esp_mqtt_client_reconnect(client);
WAIT_FOR_EVENT(CONNECT_BIT);
esp_mqtt_client_destroy(client);
vEventGroupDelete(s_event_group);
return true;
}
bool mqtt_subscribe_publish(void)
{
const esp_mqtt_client_config_t mqtt_cfg = {
.broker.address.uri = CONFIG_MQTT_TEST_BROKER_URI,
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};
char* topic = append_mac("topic");
TEST_ASSERT_TRUE(NULL != topic);
s_event_group = xEventGroupCreate();
esp_mqtt_client_handle_t client = esp_mqtt_client_init(&mqtt_cfg);
TEST_ASSERT_TRUE(NULL != client );
esp_mqtt_client_register_event(client, ESP_EVENT_ANY_ID, mqtt_event_handler, NULL);
TEST_ASSERT_TRUE(ESP_OK == esp_mqtt_client_start(client));
WAIT_FOR_EVENT(CONNECT_BIT);
int qos = -1;
esp_mqtt_client_register_event(client, MQTT_EVENT_DATA, mqtt_data_handler_qos, &qos);
TEST_ASSERT_TRUE(esp_mqtt_client_subscribe(client, topic, 2) != -1);
TEST_ASSERT_TRUE(esp_mqtt_client_publish(client, topic, "message", 0, 2, 0) != -1);
WAIT_FOR_EVENT(DATA_BIT);
TEST_ASSERT_TRUE(qos == 2);
TEST_ASSERT_TRUE(esp_mqtt_client_publish(client, topic, "message", 0, 1, 0) != -1);
WAIT_FOR_EVENT(DATA_BIT);
TEST_ASSERT_TRUE(qos == 1);
esp_mqtt_client_destroy(client);
vEventGroupDelete(s_event_group);
free(topic);
return true;
}
bool mqtt_lwt_clean_disconnect(void)
{
char* lwt = append_mac("lwt");
TEST_ASSERT_TRUE(lwt);
const esp_mqtt_client_config_t mqtt_cfg1 = {
.broker.address.uri = CONFIG_MQTT_TEST_BROKER_URI,
.credentials.set_null_client_id = true,
.session.last_will.topic = lwt,
.session.last_will.msg = "lwt_msg"
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};
const esp_mqtt_client_config_t mqtt_cfg2 = {
.broker.address.uri = CONFIG_MQTT_TEST_BROKER_URI,
.credentials.set_null_client_id = true,
.session.last_will.topic = lwt,
.session.last_will.msg = "lwt_msg"
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};
s_event_group = xEventGroupCreate();
esp_mqtt_client_handle_t client1 = esp_mqtt_client_init(&mqtt_cfg1);
esp_mqtt_client_handle_t client2 = esp_mqtt_client_init(&mqtt_cfg2);
TEST_ASSERT_TRUE(NULL != client1 && NULL != client2 );
esp_mqtt_client_register_event(client1, ESP_EVENT_ANY_ID, mqtt_event_handler, NULL);
esp_mqtt_client_register_event(client2, ESP_EVENT_ANY_ID, mqtt_event_handler, NULL);
TEST_ASSERT_TRUE(esp_mqtt_client_start(client1) == ESP_OK);
WAIT_FOR_EVENT(CONNECT_BIT);
TEST_ASSERT_TRUE(esp_mqtt_client_start(client2) == ESP_OK);
WAIT_FOR_EVENT(CONNECT_BIT);
int counter = 0;
esp_mqtt_client_register_event(client1, MQTT_EVENT_DATA, mqtt_data_handler_lwt, &counter);
esp_mqtt_client_register_event(client2, MQTT_EVENT_DATA, mqtt_data_handler_lwt, &counter);
TEST_ASSERT_TRUE(esp_mqtt_client_subscribe(client1, lwt, 0) != -1);
TEST_ASSERT_TRUE(esp_mqtt_client_subscribe(client2, lwt, 0) != -1);
esp_mqtt_client_disconnect(client1);
WAIT_FOR_EVENT(DISCONNECT_BIT);
esp_mqtt_client_reconnect(client1);
WAIT_FOR_EVENT(CONNECT_BIT);
TEST_ASSERT_TRUE(esp_mqtt_client_subscribe(client1, lwt, 0) != -1);
esp_mqtt_client_stop(client2);
esp_mqtt_client_start(client2);
WAIT_FOR_EVENT(CONNECT_BIT);
TEST_ASSERT_TRUE(esp_mqtt_client_subscribe(client2, lwt, 0) != -1);
TEST_ASSERT_TRUE(esp_mqtt_client_publish(client1, lwt, "no-lwt", 0, 0, 0) != -1);
WAIT_FOR_EVENT(DATA_BIT);
TEST_ASSERT_TRUE(counter == 0);
esp_mqtt_client_destroy(client1);
esp_mqtt_client_destroy(client2);
vEventGroupDelete(s_event_group);
free(lwt);
return true;
}
bool mqtt_subscribe_payload(void)
{
const esp_mqtt_client_config_t mqtt_cfg = {
.broker.address.uri = CONFIG_MQTT_TEST_BROKER_URI,
.network.disable_auto_reconnect = true,
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};
char* topic = append_mac("topic");
TEST_ASSERT_TRUE(NULL != topic);
s_event_group = xEventGroupCreate();
esp_mqtt_client_handle_t client = esp_mqtt_client_init(&mqtt_cfg);
TEST_ASSERT_TRUE(NULL != client );
esp_mqtt_client_register_event(client, ESP_EVENT_ANY_ID, mqtt_event_handler, NULL);
TEST_ASSERT_TRUE(ESP_OK == esp_mqtt_client_start(client));
WAIT_FOR_EVENT(CONNECT_BIT);
int qos_payload = -1;
esp_mqtt_client_register_event(client, MQTT_EVENT_SUBSCRIBED, mqtt_data_handler_subscribe, &qos_payload);
TEST_ASSERT_TRUE(esp_mqtt_client_subscribe(client, topic, 2) != -1);
WAIT_FOR_EVENT(DATA_BIT);
TEST_ASSERT_TRUE(qos_payload == 2);
TEST_ASSERT_TRUE(esp_mqtt_client_subscribe(client, topic, 0) != -1);
WAIT_FOR_EVENT(DATA_BIT);
TEST_ASSERT_TRUE(qos_payload == 0);
esp_mqtt_client_destroy(client);
vEventGroupDelete(s_event_group);
free(topic);
return true;
}