gistfile1.rb

#########################################################################################
# Manage websites

class Dashboard::WebsitesController < ApplicationController
  before_action :find_website, only: %w(show edit update destroy)

  def index
    @websites = current_user.websites
  end

  def show
  end

  def new
    @website = current_user.websites.new
  end

  def edit
  end

  def create
    @website = current_user.websites.new(website_params)
    @website.save
    respond_with @website, location: dashboard_websites_path
  end

  def update
    @website.update_attributes(website_params)
    respond_with @website, location: dashboard_websites_path
  end

  def destroy
    @website.destroy
    redirect_to dashboard_websites_path
  end

protected

  def find_website
    @website = current_user.websites.find(params[:id])
  end

  def website_params
    params.require(:website).permit(:hostname)
  end

end

#########################################################################################
# And controller specs

describe Dashboard::WebsitesController do
  let(:website)   { mock_model(Website) }
  let(:stub_find) { controller.stub_chain(:current_user, :websites, :find).and_return(website) }
  let(:stub_new)  { controller.stub_chain(:current_user, :websites, :new).and_return(website) }

  describe "#index" do
    before do
      controller.stub_chain(:current_user, :websites).and_return([website])
      get :index
    end

    it { should respond_with(:success) }
    it { should render_template(:index) }
    specify { assigns(:websites).should eq([website]) }
  end

  describe "#show" do
    before do
      stub_find
      get :show, :id => website
    end

    it { should respond_with(:success) }
    it { should render_template(:show) }
    specify { assigns(:website).should eq(website) }
  end

  describe "#edit" do
    before do
      stub_find
      get :edit, :id => website
    end

    it { should respond_with(:success) }
    it { should render_template(:edit) }
    specify { assigns(:website).should eq(website) }
  end

  describe "#new" do
    before do
      stub_new
      get :new
    end

    it { should respond_with(:success) }
    it { should render_template(:new) }
    specify { assigns(:website).should eq(website) }
  end

  describe "#destroy" do
    before do
      stub_find
      delete :destroy, :id => website
    end

    specify { assigns(:website).should eq(website) }
    it { should redirect_to(action: 'index') }
  end

  describe '#create' do
    let(:http_params) { ActionController::Parameters.new(website: { hostname: 'http://example.com' }) }
    before { stub_new }

    context 'when saves successfully' do
      before do
        website.stub(:save).and_return(true)
        post :create, http_params
      end

      it { should redirect_to(action: 'index') }
    end

    context 'when fails to save' do
      before do
        website.stub(:save).and_return(false)
        website.stub(:errors).and_return(:some => "error here")
        post :create, http_params
      end

      specify { assigns[:website].should be_eql(website) }
      it { should render_template('new') }
    end
  end

  describe '#update' do
    let(:http_params) { ActionController::Parameters.new(:id => website, website: { hostname: 'http://example.com' }) }
    before { stub_find }

    context 'when updates successfully' do
      before do
        website.stub(:update_attributes).and_return(true)
        patch :update, http_params
      end

      it { should redirect_to(action: 'index') }
    end

    context 'when fails to update' do
      before do
        website.stub(:update_attributes).and_return(false)
        website.stub(:errors).and_return(:some => "error here")
        patch :update, http_params
      end

      specify { assigns[:website].should eq(website) }
      it { should render_template('edit') }
    end
  end
end