Unit test for ESP32

#1

Hi I am working on C project for ESP32 using the platformio enviroment. I am using the unity test framework provided from the platformio env. I would like to unit test the following function

float reading_board_temp(void)
{
uint32_t adc_reading = 0;
float board_temp = 0;

for (int i = 0; i < NO_OF_SAMPLES; i++) 
{
    
    adc_reading += adc1_get_raw((adc1_channel_t)adc_1_ch_board_temp);
    vTaskDelay(TEN_TICKS_DELAY);

}
adc_reading /= NO_OF_SAMPLES;
uint32_t voltage = esp_adc_cal_raw_to_voltage(adc_reading, adc_chars_board_temp);
board_temp = (voltage - MCP9700AT_OFFSET)/TEMP_DIVIDER; 
return board_temp;

}
This is the test file I have created always in platformio

#include <Arduino.h>
#include <unity.h>
#include <gpioa_module.h>

void test_board_temp() 
{
     float expected_temp  = 35; 
     float risult_reading = 0;

     risult_reading =  reading_board_temp ();  

     TEST_ASSERT_EQUAL(expected_temp, risult_reading);
}

void setUp(void)
{

}
void tearDown(void)
{

}
void setup() 
{
    // NOTE!!! Wait for >2 secs
    // if board doesn't support software reset via Serial.DTR/RTS
    delay(2000);

    UNITY_BEGIN();
    RUN_TEST(test_board_temp);
    RUN_TEST(test_example2);
    UNITY_END();
}

void loop() 
{

}



When I try to test in the esp32 it seems to freeze.

How can I test the function removing or faking the hw dependancies ?

Thanks a lot for your kind reply.
#2

Okay, so what’s the concrete question?

#3

The concrete question is that when I try to run the system freeze… I would like to avoid the hw dep as

adc1_get_raw

esp_adc_cal_raw_to_voltage

How can I do that?

Thanks

#4

Pretty sure you can use CMock (Example).

#5

Ok … but it is easy to use cmock inside a platformio project with already many libs ?
Thanks max