An Rspec it block that pulls out all the descriptions of the test, with a regex to match "#method_name" describe blocks. Useful for testing that all public methods of a class have been tested in a spec.

rspec_descriptions.rb

it "pulls out the specs descriptions" do
  parent_groups = self.class.instance_eval { @parent_groups }
  descriptions = parent_groups.each(&:children).map do |child_group|
    child_group.instance_eval { @descendant_filtered_examples }.map do |example|
      example.full_description
    end
  end.flatten
  matched_descriptions = descriptions.map { |description| description.match(/#([[:word:]]*\??)/) }.compact.map { |match| match[1] }.uniq
  expect(matched_descriptions.first).to eq("test_method")
end

describe "#test_method" do
  it { expect(true).to be_truthy }
end