I must say I still feel a bit strange writing tests for scripts that should install or configure a program for me. But it is also quite cool if you have some scripts written for CentOS and then just add one line to your config file and add Debian for example and see if it also does what you want there, too.

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Test Kitchen - Your infrastructure deserves tests too.

Test Kitchen is a test harness tool to execute your configured code on one or more platforms in isolation.