Synvert::Rewriter.new "convert_rspec_collection_matcher", "RSpec converts collection matcher" do
  gem_spec 'rspec', '2.99.0'

  {have: 'eq', have_exactly: 'eq', have_at_least: 'be >=', have_at_most: 'be <='}.each do |old_matcher, new_matcher|
    within_files 'spec/**/*_spec.rb' do
      # expect(collection).to have(3).items => expect(collection.size).to eq(3)
      # expect(collection).to have_exactly(3).items => expect(collection.size).to eq(3)
      # expect(collection).to have_at_least(3).items => expect(collection.size).to be >= 3
      # expect(collection).to have_at_most(3).items => expect(collection.size).to be <= 3
      #
      # expect(team).to have(3).players => expect(team.players.size).to eq 3
      with_node type: 'send', message: 'to', arguments: {first: {type: 'send', receiver: {type: 'send', message: old_matcher}}} do
        times = node.arguments.first.receiver.arguments.first.source(self)
        items_name = node.arguments.first.message
        if :items == items_name
          replace_with "expect({{receiver.arguments}}.size).to #{new_matcher} #{times}"
        else
          replace_with "expect({{receiver.arguments}}.#{items_name}.size).to #{new_matcher} #{times}"
        end
      end
    end
  end
end