Accept declarative test syntax for minitest

[ianks]

I have checked that this feature is not already implemented

• This feature does not exist

Use case

We have an app (storefront renderer) which uses minitest outside of Rails with custom test do ... end syntax, and would like to have the Run test code lens.

Description

Add code lens for individual test case without rails.

Implementation

No response

[vinistock]

Thank you for the feature suggestion!

Do the tests inherit from ActiveSupport::TestCase? If that's the case, then #1334 is the solution and we can close this one.

[ianks]

Unfortunately it does not, although maybe it could but it would be some work. Here's what the class looks like:

module StorefrontRenderer
  class TestCase < Minitest::Test
    # ...
  end
end

[vinistock]

Minitest doesn't support the declarative syntax out of the box, so it would be a bit odd to pretend that it does and show the code lens anyway.

I believe there is a specific solution for your use case and a more general solution for any other type of custom syntax:

1. SFR should just use ActiveSupport::TestCase or at least ActiveSupport::Testing::Declarative and then Use ancestors to determine test framework in code lens #1334 will fix this and allow the correct behaviour
2. For any other arbitrary custom syntax people decide to create, we should allow applications to define their own private addons, which is a way to extend the Ruby LSP's functionality. For example, RSpec support is implemented that way. Currently, we only allow for gems to export addons, but the change to allow for application addons should be straight forward

I'll close this issue so that we can centralize any discussions on #1334.