choosealicense.com/spec/license_category_spec.rb

require 'spec_helper'

describe 'license categories' do
  families.each do |family|
    context "the #{family} family" do
      family_licenses = licenses.select { |l| l['family'] == family }
      primary = family_licenses.select  { |l| l['variant'] == false }
      variants = family_licenses.select { |l| l['variant'] == true }

      it 'should only have one primary license' do
        expect(primary.count).to eql(1)
      end

      it 'all other licenses should be variants' do
        expected = family_licenses.count - 1
        expect(variants.count).to eql(expected)
      end
    end
  end
end