Add request specs for caching behavior (#24592)

spec/rails_helper.rb

@@ -35,6 +35,26 @@ Devise::Test::ControllerHelpers.module_eval do
   end
 end
 
+module SignedRequestHelpers
+  def get(path, headers: nil, sign_with: nil, **args)
+    return super path, headers: headers, **args if sign_with.nil?
+
+    headers ||= {}
+    headers['Date'] = Time.now.utc.httpdate
+    headers['Host'] = ENV.fetch('LOCAL_DOMAIN')
+    signed_headers = headers.merge('(request-target)' => "get #{path}").slice('(request-target)', 'Host', 'Date')
+
+    key_id = ActivityPub::TagManager.instance.key_uri_for(sign_with)
+    keypair = sign_with.keypair
+    signed_string = signed_headers.map { |key, value| "#{key.downcase}: #{value}" }.join("\n")
+    signature = Base64.strict_encode64(keypair.sign(OpenSSL::Digest.new('SHA256'), signed_string))
+
+    headers['Signature'] = "keyId=\"#{key_id}\",algorithm=\"rsa-sha256\",headers=\"#{signed_headers.keys.join(' ').downcase}\",signature=\"#{signature}\""
+
+    super path, headers: headers, **args
+  end
+end
+
 RSpec.configure do |config|
   config.fixture_path = "#{Rails.root}/spec/fixtures"
   config.use_transactional_fixtures = true
@@ -46,10 +66,12 @@ RSpec.configure do |config|
   config.include Devise::Test::ControllerHelpers, type: :helper
   config.include Devise::Test::ControllerHelpers, type: :view
   config.include Devise::Test::IntegrationHelpers, type: :feature
+  config.include Devise::Test::IntegrationHelpers, type: :request
   config.include Paperclip::Shoulda::Matchers
   config.include ActiveSupport::Testing::TimeHelpers
   config.include Chewy::Rspec::Helpers
   config.include Redisable
+  config.include SignedRequestHelpers, type: :request
 
   config.before :each, type: :feature do
     https = ENV['LOCAL_HTTPS'] == 'true'