feat(cli/unstable): add promptSelect()

[timreichen]

Ref: #4678

Changes
Adds promptSelect() cli function.

[codecov]

Codecov Report

Attention: Patch coverage is 92.15686% with 4 lines in your changes missing coverage. Please review.

Project coverage is 96.56%. Comparing base (93e0cd6) to head (ef0a93d).
Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
cli/unstable_prompt_select.ts	92.15%	4 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6190   +/-   ##
=======================================
  Coverage   96.56%   96.56%           
=======================================
  Files         532      533    +1     
  Lines       40819    40870   +51     
  Branches     6111     6122   +11     
=======================================
+ Hits        39416    39467   +51     
- Misses       1360     1361    +1     
+ Partials       43       42    -1     

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[kt3k]

• Can you rename the file to unstable_prompt_select.ts as we want to accept every new feature as unstable feature? ref: https://github.com/denoland/std/blob/main/.github/CONTRIBUTING.md#new-features-in-stable-packages-version--100
• Can you try to write test cases by spying/stubing methods of Deno.stdin and Deno.stdout? Mocking utilities are available from @std/testing/mock

[timreichen]

• Can you rename the file to unstable_prompt_select.ts as we want to accept every new feature as unstable feature? ref: https://github.com/denoland/std/blob/main/.github/CONTRIBUTING.md#new-features-in-stable-packages-version--100
• Can you try to write test cases by spying/stubing methods of Deno.stdin and Deno.stdout? Mocking utilities are available from @std/testing/mock

I've added some tests but need help resolving the current errors. The tests ran successfully locally. I don't know, why they occur and how to fix them.

[kt3k]

The tests ran successfully locally. I don't know, why they occur and how to fix them.

I think you also need to stub Deno.stdin.setRaw (with empty function) to avoid error. (The error in CI seems happening because the stdin is not terminal in CI)

[kt3k]

Why create original spy util here? What was wrong with spy in @std/testing/mock?

[timreichen]

spy didn't work for that purpose, but @std/testing/mock's stub() did it 👍

[Kacaii]

Im really excited for this one! Its exactly what I've been looking for! <3

[kt3k]

The tests seem nicely written. LGTM