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esp-mqtt/test/host/main/test_mqtt_client.cpp
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Euripedes Rocha Filho 736d440361 fix: Fixed uri inconsistency when updated
2026-05-04 17:02:39 +02:00

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/*
* SPDX-FileCopyrightText: 2022-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "esp_transport.h"
#include <array>
#include <catch2/catch_test_macros.hpp>
#include <catch2/matchers/catch_matchers.hpp>
#include <cstddef>
#include <exception>
#include <memory>
#include <net/if.h>
#include <rapidcheck.h>
#include <string>
#include <string_view>
#include <type_traits>
#include "mqtt_client.h"
#include "test_log_intercept.hpp"
#include "test_log_matchers.hpp"
extern "C" {
#include "Mockesp_event.h"
#include "Mockesp_transport.h"
#include "Mockesp_transport_ssl.h"
#include "Mockesp_transport_tcp.h"
#include "Mockesp_transport_ws.h"
#include "Mockevent_groups.h"
#include "Mockqueue.h"
#include "Mocktask.h"
#include "esp_log.h"
#if __has_include("Mockidf_additions.h")
/* Some functions were moved from "task.h" to "idf_additions.h" */
#include "Mockidf_additions.h"
#endif
#include "Mockesp_timer.h"
/*
* The following functions are not directly called but the generation of them
* from cmock is broken, so we need to define them here.
*/
esp_err_t esp_tls_get_and_clear_last_error(esp_tls_error_handle_t h,
int *esp_tls_code,
int *esp_tls_flags)
{
return ESP_OK;
}
}
static std::string build_uri(std::string_view scheme, std::string_view host,
const uint16_t *port, std::string_view path = {},
std::string_view query = {},
std::string_view user_info = {})
{
std::string uri{scheme};
uri += "://";
if (!user_info.empty()) {
uri += user_info;
uri += "@";
}
uri += host;
if (port) {
uri += ":";
uri += std::to_string(*port);
}
if (!path.empty()) {
uri += "/";
uri += path;
}
if (!query.empty()) {
uri += "?";
uri += query;
}
return uri;
}
using unique_mqtt_client =
std::unique_ptr < std::remove_pointer_t<esp_mqtt_client_handle_t>,
decltype([](esp_mqtt_client_handle_t client)
{
esp_mqtt_client_destroy(client);
}) >;
SCENARIO("MQTT Client Operation")
{
// Set expectations for the mocked calls.
int mtx = 0;
int transport_list = 0;
int transport = 0;
int event_group = 0;
esp_timer_get_time_IgnoreAndReturn(0);
xQueueTakeMutexRecursive_IgnoreAndReturn(true);
xQueueGiveMutexRecursive_IgnoreAndReturn(true);
xQueueCreateMutex_ExpectAnyArgsAndReturn(
reinterpret_cast<QueueHandle_t>(&mtx));
xEventGroupCreate_IgnoreAndReturn(
reinterpret_cast<EventGroupHandle_t>(&event_group));
esp_transport_list_init_IgnoreAndReturn(
reinterpret_cast<esp_transport_list_handle_t>(&transport_list));
esp_transport_tcp_init_IgnoreAndReturn(
reinterpret_cast<esp_transport_handle_t>(&transport));
esp_transport_ssl_init_IgnoreAndReturn(
reinterpret_cast<esp_transport_handle_t>(&transport));
esp_transport_ws_init_IgnoreAndReturn(
reinterpret_cast<esp_transport_handle_t>(&transport));
esp_transport_ws_set_subprotocol_IgnoreAndReturn(ESP_OK);
esp_transport_list_add_IgnoreAndReturn(ESP_OK);
esp_transport_set_default_port_IgnoreAndReturn(ESP_OK);
esp_event_loop_create_IgnoreAndReturn(ESP_OK);
esp_transport_list_destroy_IgnoreAndReturn(ESP_OK);
esp_transport_destroy_IgnoreAndReturn(ESP_OK);
vEventGroupDelete_Ignore();
vQueueDelete_Ignore();
GIVEN("An a minimal config") {
static constexpr std::array<char, 36> char_set = {
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1',
'2', '3', '4', '5', '6', '7', '8', '9',
};
esp_mqtt_client_config_t config{};
config.broker.address.uri = "mqtt://1.1.1.1";
xTaskCreatePinnedToCore_ExpectAnyArgsAndReturn(pdTRUE);
SECTION("Client with minimal config") {
auto client = unique_mqtt_client{esp_mqtt_client_init(&config)};
REQUIRE(client != nullptr);
SECTION("User will set a new uri") {
using namespace test::esp_log::matchers;
esp_log_level_set("mqtt_client", ESP_LOG_DEBUG);
test::esp_log::Capture log;
SECTION("User set a correct URI") {
REQUIRE(esp_mqtt_client_set_uri(
client.get(), "mqtt://example.com/valid") == ESP_OK);
REQUIRE_THAT(log, HasMessageIn("mqtt_client",
"config_uri=mqtt://example.com/valid"));
}
SECTION("Incorrect URI from user leaves config unchanged") {
REQUIRE(esp_mqtt_client_set_uri(
client.get(),
"invalid string that is not a url") == ESP_FAIL);
REQUIRE_THAT(log, HasErrorIn("mqtt_client",
"Error parse uri"));
REQUIRE(esp_mqtt_client_set_uri(client.get(),
"mqtt://1.1.1.1") == ESP_OK);
REQUIRE_THAT(log, HasMessageIn("mqtt_client",
"config_uri=mqtt://1.1.1.1"));
}
SECTION("set_uri stores complete URI with all components") {
const char *full_uri =
"mqtts://user:pass@broker.local:8883/topic?opt=1";
REQUIRE(esp_mqtt_client_set_uri(client.get(),
full_uri) == ESP_OK);
REQUIRE_THAT(log, HasMessageIn("mqtt_client",
std::string{"config_uri="} + full_uri));
}
SECTION("set_uri value survives round-trip through set_config "
"without uri") {
static constexpr std::array schemes = {"mqtt", "mqtts",
"ws", "wss"
};
rc::check("set_uri then set_config(no uri) preserves URI",
[&] {
auto char_gen = rc::gen::elementOf(char_set);
auto scheme = *rc::gen::elementOf(schemes);
auto host = *rc::gen::container<std::string>(
*rc::gen::inRange<int>(1, 20), char_gen).as("host");
auto path = *rc::gen::container<std::string>(
*rc::gen::inRange<int>(0, 10), char_gen).as("path");
auto port = *rc::gen::maybe(
rc::gen::inRange<uint16_t>(1, 65535)).as("port");
std::string uri = build_uri(scheme, host,
port ? &*port : nullptr, path);
log.clear();
RC_ASSERT(esp_mqtt_client_set_uri(client.get(),
uri.c_str()) == ESP_OK);
RC_ASSERT(log.contains("mqtt_client",
std::string{"config_uri="} + uri));
// set_config without a uri must not revert the stored URI
esp_mqtt_client_config_t no_uri_cfg{};
no_uri_cfg.credentials.client_id = "round-trip-id";
RC_ASSERT(esp_mqtt_set_config(client.get(),
&no_uri_cfg) == ESP_OK);
log.clear();
RC_ASSERT(esp_mqtt_client_set_uri(client.get(),
uri.c_str()) == ESP_OK);
RC_ASSERT(log.contains("mqtt_client",
std::string{"config_uri="} + uri));
});
}
SECTION("set_config with new uri replaces the previous set_uri "
"value") {
static constexpr std::array schemes = {"mqtt", "mqtts",
"ws", "wss"
};
rc::check("set_config with URI overrides previous set_uri",
[&] {
auto char_gen = rc::gen::elementOf(char_set);
auto scheme1 = *rc::gen::elementOf(schemes);
auto host1 = *rc::gen::container<std::string>(
*rc::gen::inRange<int>(1, 16), char_gen).as("host1");
auto scheme2 = *rc::gen::elementOf(schemes);
auto host2 = *rc::gen::container<std::string>(
*rc::gen::inRange<int>(1, 16), char_gen).as("host2");
std::string first = build_uri(scheme1, host1, nullptr);
std::string second = build_uri(scheme2, host2, nullptr);
RC_PRE(first != second);
RC_ASSERT(esp_mqtt_client_set_uri(client.get(),
first.c_str()) == ESP_OK);
log.clear();
esp_mqtt_client_config_t new_cfg{};
new_cfg.broker.address.uri = second.c_str();
RC_ASSERT(esp_mqtt_set_config(client.get(),
&new_cfg) == ESP_OK);
RC_ASSERT(log.contains("mqtt_client",
std::string{"config_uri="} + second));
RC_ASSERT(!log.contains("mqtt_client",
std::string{"config_uri="} + first));
});
}
SECTION("set_config called repeatedly is safe") {
REQUIRE(esp_mqtt_set_config(client.get(), &config) == ESP_OK);
REQUIRE(esp_mqtt_set_config(client.get(), &config) == ESP_OK);
REQUIRE_THAT(log, HasMessageIn("mqtt_client",
"config_uri=mqtt://1.1.1.1"));
}
SECTION("URI with percent-encoded user_info is accepted") {
REQUIRE(esp_mqtt_client_set_uri(
client.get(),
"mqtt://user:p%40ss@broker.local") == ESP_OK);
}
SECTION("URI with invalid percent-encoded password returns "
"ESP_FAIL and leaves config unchanged") {
REQUIRE(esp_mqtt_client_set_uri(client.get(),
"mqtt://changed.host") == ESP_OK);
log.clear();
REQUIRE(esp_mqtt_client_set_uri(
client.get(),
"mqtt://user:p%ZZ@broker.local") == ESP_FAIL);
// The failed call must not have modified config
REQUIRE_FALSE(log.contains("mqtt_client",
"config_uri=mqtt://user"));
// Client remains usable (lock not leaked)
REQUIRE(esp_mqtt_client_set_uri(
client.get(),
"mqtt://recovery.broker") == ESP_OK);
REQUIRE_THAT(log, HasMessageIn("mqtt_client",
"config_uri=mqtt://recovery.broker"));
}
SECTION("URI with invalid percent-encoded username returns "
"ESP_FAIL and leaves config unchanged") {
REQUIRE(esp_mqtt_client_set_uri(client.get(),
"mqtt://changed.host") == ESP_OK);
log.clear();
REQUIRE(esp_mqtt_client_set_uri(
client.get(),
"mqtt://us%XYer:pass@broker.local") == ESP_FAIL);
REQUIRE_FALSE(log.contains("mqtt_client",
"config_uri=mqtt://us"));
REQUIRE(esp_mqtt_client_set_uri(
client.get(),
"mqtt://recovery2.broker") == ESP_OK);
REQUIRE_THAT(log, HasMessageIn("mqtt_client",
"config_uri=mqtt://recovery2.broker"));
}
}
SECTION("Any well-formed URI is accepted") {
esp_log_level_set("mqtt_client", ESP_LOG_DEBUG);
static constexpr std::array schemes = {"mqtt", "mqtts",
"ws", "wss"
};
test::esp_log::Capture log;
rc::check("esp_mqtt_client_set_uri accepts well-formed URIs", [&] {
auto char_gen = rc::gen::elementOf(char_set);
auto scheme = *rc::gen::elementOf(schemes);
auto host = *rc::gen::container<std::string>(
*rc::gen::inRange<int>(1, 33), char_gen)
.as("host");
auto path = *rc::gen::container<std::string>(
*rc::gen::inRange<int>(0, 17), char_gen)
.as("path");
auto query = *rc::gen::container<std::string>(
*rc::gen::inRange<int>(0, 17), char_gen)
.as("query");
auto port =
*rc::gen::maybe(rc::gen::inRange<uint16_t>(1, 65535)).as("port");
std::string uri =
build_uri(scheme, host, port ? &*port : nullptr, path, query);
log.clear();
RC_ASSERT(esp_mqtt_client_set_uri(client.get(), uri.c_str()) ==
ESP_OK);
RC_ASSERT(
log.contains("mqtt_client", std::string{"config_uri="} + uri));
});
}
SECTION("User set interface to use") {
struct ifreq if_name = {};
strncpy(if_name.ifr_name, "custom", IFNAMSIZ - 1);
if_name.ifr_name[IFNAMSIZ - 1] = '\0';
config.network.if_name = &if_name;
SECTION("Client is not started") {
REQUIRE(esp_mqtt_set_config(client.get(), &config) == ESP_OK);
}
}
SECTION("After Start Client Is Cleanly destroyed") {
esp_log_level_set("mqtt_client", ESP_LOG_DEBUG);
test::esp_log::Capture log;
REQUIRE(esp_mqtt_client_start(client.get()) == ESP_OK);
using namespace test::esp_log::matchers;
REQUIRE_THAT(log, HasMessageIn("mqtt_client", "Core selection"));
// Only need to start the client, destroy is called automatically at the
// end of scope
}
}
SECTION("Client with all allocating configuration set") {
xQueueCreateMutex_IgnoreAndReturn(
reinterpret_cast<QueueHandle_t>(&mtx));
rc::check("esp_mqtt_client_init succeeds with arbitrary config fields",
[&] {
auto char_gen = rc::gen::elementOf(char_set);
auto host = *rc::gen::container<std::string>(
*rc::gen::inRange<int>(1, 20), char_gen).as("host");
auto path = *rc::gen::container<std::string>(
*rc::gen::inRange<int>(1, 10), char_gen).as("path");
auto username = *rc::gen::container<std::string>(
*rc::gen::inRange<int>(1, 10), char_gen).as("username");
auto client_id = *rc::gen::container<std::string>(
*rc::gen::inRange<int>(1, 10), char_gen).as("client_id");
auto password = *rc::gen::container<std::string>(
*rc::gen::inRange<int>(1, 10), char_gen).as("password");
auto lw_topic = *rc::gen::container<std::string>(
*rc::gen::inRange<int>(1, 10), char_gen).as("lw_topic");
auto lw_msg = *rc::gen::container<std::string>(
*rc::gen::inRange<int>(1, 10), char_gen).as("lw_msg");
esp_mqtt_client_config_t alloc_cfg{};
alloc_cfg.broker = {
.address = {.hostname = host.data(), .path = path.data()}
};
alloc_cfg.credentials = {
.username = username.data(),
.client_id = client_id.data(),
.authentication = {.password = password.data()}
};
alloc_cfg.session = {
.last_will{.topic = lw_topic.data(), .msg = lw_msg.data()}
};
auto client = unique_mqtt_client{esp_mqtt_client_init(&alloc_cfg)};
const bool client_is_valid = client != nullptr;
RC_ASSERT(client_is_valid);
});
}
}
}
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