title: using rspec controllers to test JSON API
body: <p>I am writing some tests for a JSON API. Would using controller specs with render_views be an acceptable way of doing this? For example, something like:</p>
  
  <pre><code>describe 'task028: Adding an Item via MenuHeader', task028: true do
      it 'should create a new menu item' do
        m=FactoryGirl.create(:menu)
        mh=FactoryGirl.create(:header, parent: nil, menu_id: m.id)
        Item.count.should eq(0)
        post :create,  {item: { header: "my menu item header", detail: "my menu item detail", menu_header_id: mh.id, position: 1, is_enabled: true }}
        MenuItem.count.should eq(1)
        JSON.parse(response.body)['status'].should eq('success')
        JSON.parse(response.body)['preceding_item_id'].should eq(nil)
        response.code.should eq('200')
      end
  </code></pre>
  
  <p>Is this style ok? Or are there other / better ways to test a JSON api? Should these be feature specs?</p>