Regarding numbers 2 and 3, I believe you are describing "property-based testing"[0]. A Scala version of this is ScalaCheck and can be found here[1]. There app

Regarding numbers 2 and 3, I believe you are describing "property-based testing"[0]. A Scala version of this is ScalaCheck and can be found here[1]. There appears to be at least one Rust library which claims to provide same, but I am not a Rust developer so cannot recommend any for fitness of purpose. 0 - https://hypothesis.works/articles/what-is-property-based-testing/ https://hypothesis.works/articles/what-is-property-based-tes... 1 - https://github.com/typelevel/scalacheck/blob/main/doc/UserGuide.md https://github.com/typelevel/scalacheck/blob/main/doc/UserGu...