A unified test suite for ainconv-js (npm), ainconv-py (PyPI) and ainconv-rs (Cargo).
test_cases.json: Common test cases for conversion in default settings.robustness.json: Test special cases for robustness of unambiguous conversions, i.e. it should be less strict for input, so that multiple input that may be well-formed or ill-formed can yield the same output, as long as the input is valid and unambiguous.