RSpec.describe Redcarpet::TrustedRenderer do let(:view_context) { ActionController::Base.new.view_context } subject(:renderer) { Redcarpet::Markdown.new(described_class.new(view_context), autolink: true) } context 'when rendering links' do it 'renders internal links without target and rel attributes' do markdown = "[Click here](/internal)" expect(renderer.render(markdown)).to include('<a href="/internal">Click here</a>') end it 'renders external links with target="_blank" and rel="noopener noreferrer"' do markdown = "[Visit](http://example.com)" expect(renderer.render(markdown)).to include('<a href="http://example.com" title="Visit — Nouvel onglet" target="_blank" rel="noopener noreferrer">Visit</a>') end end context 'when rendering images' do it 'renders an image tag with lazy loading' do markdown = "" expect(renderer.render(markdown)).to include('<img alt="A cute cat" loading="lazy" src="http://example.com/cat.jpg" />') end end context 'when autolinking' do it 'autolinks URLs' do markdown = "Visit http://example.com" expect(renderer.render(markdown)).to include('Visit <a href="http://example.com" title="http://example.com — Nouvel onglet" target="_blank" rel="noopener noreferrer">http://example.com</a>') end it 'autolinks email addresses with mailto' do markdown = "Email user@example.com" expect(renderer.render(markdown)).to include('<a href="mailto:user@example.com">user@example.com</a>') end end context 'with block_quote DSFR alert' do it 'renders [!INFO] blocks as DSFR info alerts' do markdown = "> [!INFO]\n> This is an information alert with *emphasis*." expected_html = <<~HTML <div class='fr-alert fr-alert--info fr-my-3w'> <h2 class="fr-alert__title">Information : </h2> <p>This is an information alert with <em>emphasis</em>.</p> </div> HTML expect(renderer.render(markdown).delete("\n")).to include(expected_html.delete("\n")) end it 'renders [!WARNING] blocks as DSFR warning alerts' do markdown = "> [!WARNING]\n> This is a warning alert." expected_html = <<~HTML <div class='fr-alert fr-alert--warning fr-my-3w'> <h2 class="fr-alert__title">Attention : </h2> <p>This is a warning alert.</p> </div> HTML expect(renderer.render(markdown).delete("\n")).to include(expected_html.delete("\n")) end end end