undefined method `metadata_for_test_name', revisited

[The-Alchemist]

Looks like someone bumped into this error years ago (#9 ), but I'm not sure if it's for the same reason. Looks like it's not possible mix spec's and regular minitests? We have a mixture of both, so it would be great to run them all with the same execution.

Test that Fails

It's just a blank minitest:

# frozen_string_literal: true

require 'minitest/test'

class SomeTest < Minitest::Test

  def test_empty
  end

end

minitest spec/blank_minitest.test.rb --tag random_tag

Error

/minispec-metadata/lib/minispec-metadata/tags.rb:61:in `block in runnable_method_matches_any_tags?': undefined method `metadata_for_test_name' for SomeTest:Class (NoMethodError)
	from /Users/user/Development/minispec-metadata/lib/minispec-metadata/tags.rb:60:in `any?'
	from /Users/user/Development/minispec-metadata/lib/minispec-metadata/tags.rb:60:in `runnable_method_matches_any_tags?'
	from /Users/user/Development/minispec-metadata/lib/minispec-metadata/tags.rb:49:in `runnable_method_matches_any_inclusive_tag?'
	from /Users/user/Development/minispec-metadata/lib/minispec-metadata/tags.rb:38:in `block in runnable_methods'
	from /Users/user/Development/minispec-metadata/lib/minispec-metadata/tags.rb:37:in `select!'
	from /Users/user/Development/minispec-metadata/lib/minispec-metadata/tags.rb:37:in `runnable_methods'
	from /usr/local/lib/ruby/gems/2.6.0/gems/minitest-5.15.0/lib/minitest.rb:161:in `block in __run'
	from /usr/local/lib/ruby/gems/2.6.0/gems/minitest-5.15.0/lib/minitest.rb:161:in `reject'
	from /usr/local/lib/ruby/gems/2.6.0/gems/minitest-5.15.0/lib/minitest.rb:161:in `__run'
	from /usr/local/lib/ruby/gems/2.6.0/gems/minitest-5.15.0/lib/minitest.rb:146:in `run'
	from /usr/local/lib/ruby/gems/2.6.0/gems/minitest-5.15.0/lib/minitest.rb:73:in `block in autorun'

How to Reproduce

1. git clone git@github.com:The-Alchemist/minispec-metadata.git --branch 'bug/error_with_spec_and_regular_tests'
2. cd minispec-metadata && minitest spec/blank_minitest.test.rb --tag random_tag