docs: Explore test-targets-for-shards SDD

[piotradamczyk5]

Fixes #1532

Test Plan

How do we know the code works?

This is SDD

Checklist

• Researched
• SDD
• Follow up tasks created

[github-actions]

CLA Assistant Lite bot All contributors have signed the CLA ✍️ ✅

[mergify]

Title does not follow the guidelines of Conventional Commits.
Please adjust title before merge and use one of following prefix:

• build - Changes that affect the build system or external dependencies (dependencies update)
• ci - Changes to our CI configuration files and scripts (basically directory .github/workflows)
• docs - Documentation only changes
• feat - A new feature
• fix - A bug fix
• chore - Changes which does not touch the code (ex. manual update of release notes). It will not generate release notes changes
• refactor - A code change that contains refactor
• style - Changes that do not affect the meaning of the code (white-space, formatting, missing semi-colons, etc)
• test - Adding missing tests or correcting existing tests and also changes for our test app
• perf - A code change that improves performance (I do not think we will use it)

[github-actions]

Timestamp: 2021-02-26 17:54:20
Buildscan url for ubuntu-workflow run 603525923
https://gradle.com/s/bc6epciypvapi

[piotradamczyk5]

@Sloox @pawelpasterz @adamfilipow92 @bootstraponline @jan-gogo @axelzuziak-gogo
Do you think that we need this feature?

[pawelpasterz]

Definitely, test-targets-for-shard should remain as it is now 👌

I think the only way to implement it is with the additional configuration on the flank level (as you proposed). plan-sharding, smart-test-targets-for-shards both have fine names for me.

Fladle gives flexibility when it comes to multiple configurations. Yet, that feature would allow us to run it within a single test run. So it comes to the question about business value 🤷‍♂️

And another config options to the already big one 😅

[piotradamczyk5]

Slack discussion about this feature

[piotradamczyk5]

We will not implement this feature for now, but let's merge this SDD to make it available for future