# REPL with the testing enviroment of a package

**URL:** <https://discourse.julialang.org/t/repl-with-the-testing-enviroment-of-a-package/66200>\
**Category:** General Usage\
**Tags:** package\
**Created:** [August 11, 2021, 1:31pm UTC](https://discourse.julialang.org/t/repl-with-the-testing-enviroment-of-a-package/66200 "2021-08-11T13:31:22Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![SteffenPL](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/steffenpl/32/206270_2.png) [@SteffenPL](https://discourse.julialang.org/u/SteffenPL)\
**Post date:** [August 11, 2021, 1:31pm UTC](https://discourse.julialang.org/t/repl-with-the-testing-enviroment-of-a-package/66200/1 "2021-08-11T13:31:22Z")

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Is there a way to activate the environment which is used for tests in a REPL (i.e. loading the packages specified in the [[extra]](http://pkgdocs.julialang.org/dev/creating-packages/#Test-specific-dependencies-in-Julia-1.0-and-1.1) section of Project.toml)? (or, asked differently: When you work on PRs, in which environment is it best to work?)

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**Author:** ![mmiller](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/mmiller/32/20805_2.png) [@mmiller](https://discourse.julialang.org/u/mmiller)\
**Post date:** [August 11, 2021, 1:49pm UTC](https://discourse.julialang.org/t/repl-with-the-testing-enviroment-of-a-package/66200/2 "2021-08-11T13:49:27Z")

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Use [`TestEnv.jl`](https://github.com/JuliaTesting/TestEnv.jl/), you can do `TestEnv.activate()` or `TestEnv.activate("PackageName")`.

I normally work in the package environment and then use `TestEnv` when I have test specific dependencies.

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**Author:** ![SteffenPL](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/steffenpl/32/206270_2.png) [@SteffenPL](https://discourse.julialang.org/u/SteffenPL)\
**Post date:** [August 11, 2021, 1:51pm UTC](https://discourse.julialang.org/t/repl-with-the-testing-enviroment-of-a-package/66200/3 "2021-08-11T13:51:54Z")

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Perfect, thanks!