pokemon.trade/spec/systems/pokemon_spec.rb

require 'rails_helper'

RSpec.describe 'Pokemon', type: :system do
  let!(:pokemon) { create_list(:pokemon, 10) }

  context 'viewing' do
    context 'on the index page' do
      before { visit('/pokemon') }

      it 'shows me pokemon' do
        pokemon.each do |pkmn|
          expect(page).to have_text pkmn.nickname
        end
      end
    end

    context 'individual pokemon' do
      let!(:random_pokemon) { pokemon.sample }
      before { visit("/pokemon/#{random_pokemon.id}") }

      it 'shows me the pokemon' do
        expect(page).to have_text random_pokemon.id
        expect(page).to have_text random_pokemon.nickname
      end
    end
  end
end