gistify295708.rb

def test_show_success
  event = events(:good_event1) # Loading the event from a fixture file
  Event.expects(:find).with('4').returns(event).once

  get :show, id: 4

  assert_response :success
  body = JSON.parse(response.body)
  assert_equal 'Title', body.title
  assert_equal 'Markup', body.markup
end