Use CSS Selectors in RSpec Request Specs

request_helpers.rb

def css(selector)
  html.css(selector).text
end

def html
  Nokogiri::HTML(response.body)
end

some_spec.rb

# How to use the above helpers.

RSpec.describe 'Test some page', type: :request do
  it 'has a <p> with "Title"' do
    get '/my-page'
    
    expect( css 'p' ).to include 'Title'
  end
end

How about:

  include Capybara::RSpecMatchers

and then

expect(response.body).to have_text('...')

How would you check if there's a <p> with the text Title?

I believe this will work:

expect(response.body).to have_css('p', text: 'Title')

https://rubydoc.info/github/jnicklas/capybara/Capybara/Node/Matchers#has_css%3F-instance_method

To be honest, I didn't know about the feature of using capybara selectors with requests tests. Just found this way after I found your solution. Just wanted to share with you :)

ps.

But in same time I knew about feature:

visit ...
expect(page).to ....

But with rack instead of headless browsers. But I like my proposed solution more without all the rspec tags like tag: :js, you know...