require 'rails_helper'

RSpec.describe Game, type: :model do
  before(:each) { @game = Game.new(title: 'Test Game') }

  subject { @game }

  it { should respond_to(:title) }

  it '#title returns a string' do
    expect(@game.title).to match 'Test Game'
  end

  describe 'validations' do
    describe 'player_count' do
      context 'when there are between 2 and 4 players' do
        it 'is startable' do
          @game.players.new
          @game.players.new
          expect(@game.players.size).to eq(2)
          expect(@game.startable?).to eq(true)
        end
      end

      context 'when there are less than 2 players' do
        it 'is not startable with too few players' do
          @game.validate_startable
          expect(@game.players.size).to eq(0)
          expect(@game.startable?).to eq(false)
          expect(@game.errors[:players])
            .to include 'Must be at least 2 players.'
        end
      end
      context 'when there are more than 4 players' do
        it 'fails validation with too many players' do
          6.times do
            @game.players.new
          end
          @game.validate_startable
          expect(@game.startable?).to eq(false)
          expect(@game.errors[:players])
            .to include 'Must be less than 5 players.'
        end
      end
    end
  end

  #it 'Can not be started if game is invalid' do
    #expect(@game.start).to raise_error
  #end
end