# frozen_string_literal: true

require 'rails_helper'

module Tables
  RSpec.describe WheelSwap do
    context 'when the solution has three tables' do
      let(:initial_solution) do
        Distribution.new(min_per_table: 3, max_per_table: 3).tap do |distribution|
          distribution.tables << Set[:a, :b, :c].to_table
          distribution.tables << Set[:d, :e, :f].to_table
          distribution.tables << Set[:g, :h, :i].to_table
        end
      end

      it 'swaps a random guest from each table with a guest from another table', :aggregate_failures do
        result = described_class.new(initial_solution).call

        expect(result.tables.size).to eq(3)
        expect(result.tables.map(&:size)).to all(eq(3))

        expect(result.tables.map(&:to_a).flatten).to match_array((:a..:i).to_a)
      end
    end
  end
end