`projects` autocompletion for test using `[workspace]`

[t-bltg]

If I add a Project.toml containing :

name = "PlotsWorkspace"

[workspace]
projects = ["RecipesBase", "PlotThemes", "RecipesPipeline", "PlotsBase", "Plots", "GraphRecipes", "StatsPlots"]

to https://github.com/JuliaPlots/Plots.jl,

(PlotsWorkspace) pkg> test RecipesBase  # works, but I'd like Pkg to autocomplete the possible `projects` after hitting `tab`
(PlotsWorkspace) pkg> test <TAB> # <= RecipesBase or PlotThemes or RecipesPipeline ...

Also, this doesn't work, why not ?

(PlotsWorkspace) pkg> test
ERROR: The Project.toml of the package being tested must have a name and a UUID entry

We could image that the previous command could trigger the tests for all projects.

[AradhyaTiwari10]

Hi! I’d like to work on this issue.

It looks like pkg> test currently doesn’t use the [workspace].projects list for tab completion, even though those entries are valid targets for testing. I’m planning to:

• trace how completion for test is implemented in the Pkg REPL mode
• extend the completion candidates to include workspace projects
• add tests to cover the new behavior

I’ll start by reproducing the issue locally and exploring the REPL completion logic in REPLExt. Please let me know if this approach sounds good or if there are any design considerations I should keep in mind before opening a PR.
Happy to iterate based on feedback....