Add code lens support for rails active support test cases using minitest/spec

[beauraF]

Hello 👋

This is introducing code lens support for minitest/spec

[beauraF]

I have signed the CLA!

[vinistock]

Thank you for the contribution! The code looks good to me, but I do have a few questions as I never used minitest/spec in combination with ActiveSupport::TestCase.

1. Are the tests still expected to inherit from ActiveSupport::TestCase?
2. If I'm not mistaken, Rails' recommendation is to use test classes to group related examples, but minitest/spec brings in the describe method as well. Does describe work in this case? Do we need to handle it?

[beauraF]

Thanks @vinistock ! Sorry, I should have add more details ; it was planned, but haven't took the time to come back to it.

Are the tests still expected to inherit from ActiveSupport::TestCase

All our tests still inherit from ActiveSupport::TestCase. We are using https://github.com/metaskills/minitest-spec-rails to ease the things and benefits from all the features of minitest/spec. But you can have a basic support by adding

• require "minitest/spec" to test/test_helper.rb
• extend extend Minitest::Spec::DSL into ActiveSupport::TestCase

Does describe work in this case? Do we need to handle it?

My proposal doesn't support describe but is able to launch a it inside a describe.
Supporting launching a group of tests from a describe would be a nice addition. But it's maybe a bit more work, and I wanted to start simply, without getting too much in the way of the initial philosophy of supporting vanilla ActiveSupport::TestCase.
Now if that's something you would be ok with, I can work on that in a follow up PR. :)

[vinistock]

Let's start with this. Since Rails encourages usage of classes to define groups, I think it's fine we leave describe out for now. We can always revisit later if needed.

Thanks for the contribution!