users_controller_spec.rb

require 'spec_helper'

describe TraditionsController do
  it 'returns traditions at index path' do
    get '/traditions'
    expect(response).to have_http_status(:success)
  end

  it 'destroys a tradition' do
    tradition = create(:tradition)
    old_id = tradition.id
    delete "/traditions/#{old_id}"
    expect { Tradition.find(old_id) }.to raise_error(ActiveRecord::RecordNotFound)
  end
end

users_controller_test.rb

require 'test_helper'

class TraditionsControllerTest < ActionDispatch::IntegrationTest
  def test_index
    get '/traditions'
    assert_response :success
  end

  def test_destroy
    tradition = create(:tradition)
    old_id = tradition.id
    delete "/traditions/#{old_id}"
    assert_raises(ActiveRecord::RecordNotFound) { Tradition.find(old_id) }
  end
end