[JackuB]

If you fancy more BDD-style testing with a Gherkin-like syntax, there is also Shellspec https://shellspec.info / https://github.com/shellspec/shellspec

[ryanianian]

Shellspec is delightful to use. Every time I go to test with it I end up finding bugs. But also every time I go to test with it I end up convincing myself to not use bash. I imagine the same would be true of bash_unit.