Files
esp-idf/tools/test_apps
Guillaume Souchere d670774f5c feat(esp_common): implement composable error code registration via link-time arrays
Refactor the esp_err_to_name() system to decouple esp_common from
higher-level components. Instead of a monolithic generated table,
each component registers its error codes into a dedicated linker
section (.esp_err_msg_table) via idf_define_esp_err_codes() in its
CMakeLists.txt.

New files:
- tools/err_codes_extract.py: extract ESP_ERR_* defines from headers to CSV
- tools/err_codes_to_c.py: generate C source placing entries into linker section
- tools/err_codes_to_rst.py: generate RST documentation from error codes
- tools/cmake/err_codes.cmake: CMake module providing idf_define_esp_err_codes()
- components/esp_common/include/esp_err_codes.h: esp_err_msg_t typedef
- components/esp_common/src/esp_err_to_name_new.c: new lookup using link-time array
- tools/test_apps/build_system/err_codes_check/: CI test app

Changes:
- Remove all optional component dependencies from esp_common/CMakeLists.txt
- Add .esp_err_msg_table section to all 5 linker scripts
- Register error codes in 18 components via idf_define_esp_err_codes()
- Add new scripts to .gitlab/ci/rules.yml build_check patterns
- use new scripts to generate doc and add CI validation
- Update esp_err.rst to add description of composable code registration
2026-05-28 09:53:32 +02:00
..

Test Apps

This directory contains a set of ESP-IDF projects to be used as tests only, which aim to exercise various configuration of components to check completely arbitrary functionality should it be building only, executing under various conditions or combination with other components, including custom test frameworks.

The test apps are not intended to demonstrate the ESP-IDF functionality in any way.

Test Apps projects

Test applications are treated the same way as ESP-IDF examples, so each project directory shall contain

  • Build recipe in cmake and the main component with app sources
  • Configuration files, sdkconfig.ci and similar (see below)
  • Python test scripts, pytest_....py (optional)

Test Apps layout

The test apps should be grouped into subdirectories by category. Categories are:

  • protocols contains test of protocol interactions.
  • network contains system network tests
  • system contains tests on the internal chip features, debugging and development tools.
  • security contains tests on the chip security features.

CI Behavior

Configuration Files

For each project in test_apps (and also examples):

  • If a file sdkconfig.ci exists then it's built as the default CI config.
  • If any additional files sdkconfig.ci.<CONFIG> exist then these are built as alternative configs, with the specified <CONFIG> name.

The CI system expects to see at least a "default" config, so add sdkconfig.ci before adding any sdkconfig.ci.CONFIG files.

  • By default, every CI configurations is built for every target SoC (an m * n configuration matrix). However if any sdkconfig.ci.* file contains a line of the form CONFIG_IDF_TARGET="targetname" then that CI config is only built for that one target. This only works in sdkconfig.ci.CONFIG, not in the default sdkconfig.ci.
  • Each configuration is also built with the contents of any sdkconfig.defaults file or a file named sdkconfig.defaults.<TARGET> appended. (Same as a normal ESP-IDF project build.)

Test Apps local execution

Some of the examples have pytest_....py scripts that are using the pytest as the test framework. For detailed information, please refer to the "Run the Tests Locally" Section under ESP-IDF tests in Pytest documentation