Add test for capture

spec/rails/app/controllers/users_controller.rb

@@ -2,4 +2,7 @@ class UsersController < ApplicationController
   def index
     @user = { id: 1, name: 'k0kubun' }
   end
+
+  def capture
+  end
 end

spec/rails/app/views/users/capture.html.haml

@@ -0,0 +1,5 @@
+- html = capture do
+  %span
+    %p Capture
+
+.capture= html

spec/rails/config/routes.rb

@@ -1,5 +1,9 @@
 Rails.application.routes.draw do
   root to: 'application#index'
 
-  resources :users, only: :index
+  resources :users, only: :index do
+    collection do
+      get :capture
+    end
+  end
 end

spec/rails/spec/controllers/users_controller_spec.rb

@@ -34,4 +34,16 @@ describe UsersController, type: :request do
       expect(response.body).to include('<a href="/">root</a>')
     end
   end
+
+  describe '#capture' do
+    it 'allows capture method to work' do
+      get capture_users_path
+      expect(response.body).to include(<<-HTML.strip_heredoc)
+        <div class="capture"><span>
+        <p>Capture</p>
+        </span>
+        </div>
+      HTML
+    end
+  end
 end