How do I activate the test environment of a package?

[jlperla]

@ufechner7

Try GitHub - JuliaTesting/TestEnv.jl: Activate your test enviroment, so you can use your test dependencies in the REPL

Yup, this is the winner for sure, and doesn’t require any non-dev tool packages in your global environment. How to use VSCode and REPL to write and test a package? - #4 by jlperla writes up what I found to be the easiest workflow. If a package doesn’t have a test/Project.toml but has it embedded in the main Project file, I think TestEnv is still supposed to work.