ruby: Add support for running tests

[vitallium]

Hello, this pull request adds two things related to each other. I hope it's fine to submit both in the same pull request but I am totally fine with submitting them in separate pull requests, just let me know. This is an initial version for both features. Thanks!

Symbols outline support for testing frameworks: minitest and RSPec

Symbols outline support in Minitest (the testing framework that comes with Ruby on Rails out of the box) and RSpec (another testing framework that is popular in Ruby and Ruby on Rails world). Here are some screenshots:

Minitest

Given this Ruby code:

require "test_helper"

class CategoryTest < ActiveSupport::TestCase
  context "validations" do
    subject { build(:category) }

    should validate_presence_of(:title)
    should validate_length_of(:title).is_at_most(255)
    should validate_uniqueness_of(:title)
  end
end

class TestNamesWithMiniTest < ActiveSupport::TestCase
  def test_foo_1; assert true; end
  def test_foo_2; assert true; end
  def test_bar_1; assert true; end
  def test_bar_2; assert true; end
end

We have this symbols outline:

RSpec

I used mastodon application for testing because it's written in Ruby. Given the following file https://github.com/mastodon/mastodon/blob/main/spec/models/account_spec.rb We have the following symbols outline:

Running Ruby tests

Minitest

Given the same file as above, we have the following workflow:

CleanShot.2024-05-20.at.13.01.54.mp4

RSpec

Given the following file https://github.com/mastodon/mastodon/blob/main/spec/models/account_spec.rb We have the following workflow:

CleanShot.2024-05-20.at.13.03.43.mp4

---

Release Notes:

• N/A

[SomeoneToIgnore]

Thank you.

[MoskitoHero]

Very nice, this feature is great, however, it does not seem to pick up my bundle context. Is there a way to tweak it?

[joeldrapper]

@MoskitoHero I opened a new issue for this and problems with test detection here. #12579