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Testing

A significant number of tests have been created in pytest.

  • The tests are located in the tests folder.
  • The tests/data folder contains folders with subs that are used to verify the correct working of the minification modules
  • debugging the tests only works if --no-cov is specified for pytest

testing & debugging createstubs.py

  • the tests\mocks folder contains mock-modules that allow the micropython code to be run in CPython. This is used by the unit tests that verify createstubs.py and it minified version.

  • in order to load / debug the test the python path needs to include the cpython_core modules (Q&D)

  • mocking cpython_core/os is missing the implementation attribute so that has been added (Q&D)

platform detection

In order to allow both simple usability om MicroPython and testability on full Python, createstubs does a runtime test to determine the actual platform it is running on while importing the module

This is similar to using the if __name__ == "__main__": preamble

if isMicroPython():
    main()

This allows pytest test running on full Python to import createstubs.py and run tests against individual methods, while allowing the script to run directly on import on a MicroPython board.

Some test are platform dependent and have been marked to only run on linux or windows

Code Coverage

Code coverage is measured and reported in the coverage/index.html report. This report is not checked in to the repo, and therefore is only