I’ve seen Tcl used to write testing systems a long time ago, but never really worked with it. Tangentially, I found that the primary author of SQLite and Fossi

I’ve seen Tcl used to write testing systems a long time ago, but never really worked with it. Tangentially, I found that the primary author of SQLite and Fossil SCM, D Richard Hipp, was also a core team member of Tcl. The server side of Fossil uses a minimal dialect of Tcl and the build/test system is built with Tcl. [1] [1]: https://fossil-scm.org/home/doc/trunk/www/fossil-v-git.wiki https://fossil-scm.org/home/doc/trunk/www/fossil-v-git.wiki