creddit/spec/features/posts/edit_post_spec.rb

require 'rails_helper'

describe 'Edit Post', type: :feature do
  let!(:subcreddit) { create(:subcreddit) }

  context 'when signed in' do
    let!(:user) { create(:user) }
    let(:new_post) { build_stubbed(:post) }

    before(:each) { signin(user: user) }

    context 'when owner' do
      let!(:post) { create(:post, subcreddit: subcreddit, user: user) }

      context 'with valid data' do
        before(:each) do
          visit edit_subcreddit_post_path(subcreddit, post)

          fill_in :post_title, with: new_post.title
          fill_in :post_link, with: new_post.link
          fill_in :post_content, with: new_post.content

          click_button 'Update Post'
        end

        it 'should notify that the post was edited' do
          expect(page).to have_content('updated')
        end

        it 'should show the updated post' do
          expect(page).to have_content(new_post.title)
          expect(page).to have_content(new_post.content)
        end
      end
    end

    context 'when not owner' do
      let!(:post) { create(:post, subcreddit: subcreddit) }

      it 'should notify user that they cannot edit' do
        visit edit_subcreddit_post_path(subcreddit, post)

        expect(page).to have_content 'not authorized'
      end
    end
  end

  context 'when not signed in' do
    let!(:user) { GuestUser.new }
    let!(:post) { create(:post, subcreddit: subcreddit) }

    it 'should notify user they cannot edit' do
      visit edit_subcreddit_post_path(subcreddit, post)

      expect(page).to have_content 'not authorized'
    end
  end
end