Add unit test

[nogema]

Hello,

I am trying to add unit tests to my project. I followed the file tree of the unit test example (https://github.com/espressif/esp-idf/tr ... /unit_test) and change the CMakeLists.txt files as a result. However when I compile my code I get a fatal error about a file of the ESP-IDF framework :

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fatal error: driver/gpio.h: No such file or directory
   14 | #include "driver/gpio.h"

Here my file tree :

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+ components 
     + folder_1
        + include
           - file_1.h
           - file_2.h
           - file_3.h
        + test
           - CMakeLists.txt
           - test_file.c
        - file_1.c
        - file_2.c
        - file_3.c
        - CMakeLists.txt
     - folder_2
     - folder_3
+ main
     + include
        - main.h
     - CMakeLists.txt
     - main.c

Moreover, the ESP-IDF example only shows how to do unit test for user made functions and not user made functions + ESP-IDF items (like the gpio.h).

Does anyone have an idea what I did wrong or I missed ?

Thank you for your help

[ESP_Sprite]

Probaby you need a REQUIRES drivers in the cmakelists.txt somewhere, to indicate the test component needs the driver component (which contains the GPIO driver)

[nogema]

Thank you for your tip. Now I can compile my project but I still get errors when I try to compile the test project such as :

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fatal error: esp_bt.h: No such file or directory
   25 | #include "esp_bt.h"

Here my CMakeList.txt file in the same folder as the file that triggers the above error :

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idf_component_register(SRCS "bluetooth_task.c" "gatts_table_creat_demo.c"
                    INCLUDE_DIRS "include"
                    REQUIRES "nvs_flash" "bt" "app_update" "log")

[nogema]

I also tried to use the Eclipse IDE because until now I was using the VS Code IDE.
In Eclipse, I succeeded to compile the project but I cannot compile the test sub project. Eclipse only defines a "Local" target and even when I try to add a "New Launch Target...", it is not saved.

[nogema]

I have finally solved my problem. The problem was the sdkconfig file of the sub folder test was different from the sdkconfig file of the project.

To summerise, explicitly declare the library components used in CMakelist.txt with the word REQUIRES and use the same sdkconfig file in the main project and the test project.