notebook/spec/support/content_controller_example.rb

require 'rails_helper'
require 'support/devise'
include Rails.application.routes.url_helpers

shared_examples_for 'a controller for a content item' do
  before(:all) do
    @model_class = described_class.controller_name.classify.constantize
    @model_name = described_class.controller_name.classify.constantize.model_name.param_key
  end

  before(:each) do
    @request.env['devise.mapping'] = Devise.mappings[:user]
    @user = create(:user)

    sign_in @user
  end

  let(:model) { create(@model_name.to_sym, user: @user) }

  describe 'GET #index' do
    before { get :index }
    it { is_expected.to respond_with(200) }
    it { is_expected.to render_template('content/index') }

    describe 'assigns(:content)' do
      subject { assigns(:content) }
      it { is_expected.to_not be_nil }
    end
  end

  describe 'GET #new' do
    before { get :new }
    it { is_expected.to respond_with(200) }
    it { is_expected.to render_template(locals: "#{@model_name.pluralize}/new", layout: :application) }
  end

  describe 'POST #create' do
    # todo change this to use custom attributes now
    # before do
    #   post :create, params: { @model_name => {
    #     name: model.name,
    #     user: @user
    #   } }
    # end
    # it { is_expected.to redirect_to(polymorphic_path(assigns(:content))) }
  end

  describe 'GET #edit' do
    before { get :edit, params: { id: model.id } }
    it { is_expected.to respond_with(200) }
    it { is_expected.to render_template(locals: "#{@model_name.pluralize}/edit", layout: :application) }
  end

  describe 'PUT #update' do
    # todo change this to use custom attributes now
    # before do
    #   put :update, params: { id: model.id, @model_name => {
    #     name: model.name,
    #     user: @user
    #   } }
    # end
    # it { is_expected.to redirect_to(polymorphic_path(model)) }
  end

  describe 'DELETE #destroy' do
    before { delete :destroy, params: { id: model.id } }
    it { is_expected.to redirect_to(polymorphic_path(@model_class)) }

    describe 'the destroyed model' do
      subject { @model_class.find_by_id(model.id) }
      it { is_expected.to be_nil }
    end
  end
end