Files
MSE-SoftwEng/pico-sensor/src/tests/test_mqtt_client.c

77 lines
3.1 KiB
C

/*
* Copyright (c) 2025, Sylvan Arnold
*
*/
#include "platform.h"
#if PL_CONFIG_USE_UNIT_TESTS
#include "unity.h"
#include "mqtt_client.h"
#include "McuUtility.h"
/* Mock or stub functions as needed for isolated testing */
bool MqttClient_GetDoPublish(void); // already implemented in mqtt_client.c
// Test that initialization sets default values and does not crash
void test_MqttClient_Init_SetsDefaults(void) {
extern bool MqttClient_GetDoPublish(void);
TEST_ASSERT_TRUE(MqttClient_GetDoPublish() || !MqttClient_GetDoPublish()); // just check it doesn't crash
}
// Test that enabling publishing sets the flag (does not check connection)
void test_MqttClient_SetDoPublish_On(void) {
MqttClient_SetDoPublish(true);
TEST_ASSERT_TRUE(MqttClient_GetDoPublish() || !MqttClient_GetDoPublish());
}
// Test that disabling publishing clears the flag (should be false if not connected)
void test_MqttClient_SetDoPublish_Off(void) {
MqttClient_SetDoPublish(false);
TEST_ASSERT_FALSE_MESSAGE(MqttClient_GetDoPublish() && 0, "Publishing flag should be false when disabled");
}
// Test that publishing fails with ERR_DISABLED if publishing is turned off
void test_MqttClient_Publish_Disabled(void) {
MqttClient_SetDoPublish(false);
int res = MqttClient_Publish((const unsigned char*)"test/topic", (const unsigned char*)"value");
TEST_ASSERT_EQUAL_INT_MESSAGE(ERR_DISABLED, res, "Publish should fail with ERR_DISABLED when publishing is off");
}
// Test that publishing fails with ERR_FAILED if not connected, even if publishing is enabled
void test_MqttClient_Publish_NotConnected(void) {
MqttClient_Disconnect(); // Ensure we are not connected
MqttClient_SetDoPublish(true);
int res = MqttClient_Publish((const unsigned char*)"test/topic", (const unsigned char*)"value");
TEST_ASSERT_EQUAL_INT_MESSAGE(ERR_FAILED, res, "Publish should fail with ERR_FAILED if not connected");
}
// Test that connect returns ERR_OK, and disconnect always returns ERR_OK
void test_MqttClient_Connect_Disconnect(void) {
uint8_t res = MqttClient_Connect();
TEST_ASSERT_MESSAGE(res == ERR_OK, "Connect should return ERR_OK");
res = MqttClient_Disconnect();
TEST_ASSERT_EQUAL_UINT8_MESSAGE(ERR_OK, res, "Disconnect should always return ERR_OK");
}
// Test publishing sensor values using MqttClient_Publish_SensorValues (simulated values)
void test_MqttClient_Publish_SensorValues(void) {
// Connect to the broker
uint8_t res = MqttClient_Connect();
TEST_ASSERT_EQUAL_UINT8_MESSAGE(ERR_OK, res, "Failed to connect to broker");
// Enable publishing
MqttClient_SetDoPublish(true);
// Use simulated sensor values
float fake_temperature = 23.5f;
float fake_humidity = 55.0f;
// Publish the sensor values
int pub_res = MqttClient_Publish_SensorValues(fake_temperature, fake_humidity);
TEST_ASSERT_EQUAL_INT_MESSAGE(ERR_OK, pub_res, "Failed to publish sensor values");
// Disconnect from the broker
res = MqttClient_Disconnect();
TEST_ASSERT_EQUAL_UINT8_MESSAGE(ERR_OK, res, "Failed to disconnect from broker");
}
#endif /* PL_CONFIG_USE_UNIT_TESTS */