Files
esp-idf/tools/test_apps
Ivan Grokhotkov (bot) 20b9e06e92 ci: add API compatibility check job for merge requests
Add a check_api_compatibility CI job that uses esp-api-check to detect
breaking API changes in merge requests. The job compares API
declarations between the MR base and head commits using libclang, and
posts a discussion thread on the MR if WARNING or BREAKING changes are
found.

- Add CI job in host-test.yml with clang toolchain and allow_failure
- Add test_api_check project for CMake configuration with all
  components enabled
- Define __DOXYGEN__ and IDF_DOC_BUILD so the checker can see
  declarations behind these guards

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-06 17:12:40 +01:00
..

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