Shared example in Rails with RSpec and Capybara

test.rb

# Shared stuff for logging in
RSpec.shared_context 'logged in user' do
  before do
    visit '/login'
    fill_in 'username', with: 'test_user'
    fill_in 'password', with: 'test_password'
    click_button 'Login'
  end
end

# Actual tests
RSpec.describe 'My Feature' do
  include_context 'logged in user'

  it 'checks out feature A' do
    visit '/feature_A'
    expect(page).to have_content('Welcome to Feature A')
  end

  it 'checks out feature B' do
    visit '/feature_B'
    expect(page).to have_content('Welcome to Feature B')
  end
end