1. fix tests 1. evaluate test libs like [kaocha](https://github.com/lambdaisland/kaocha) 1. provide ez autotest workflow 1. add documentation how to use/run tests 1. add ci (eg. circleci) and badges 1. maybe add an integration testsuite (i could send [coalmine](https://github.com/mfikes/coal-mine)-code to eval-"service")
