favorites_controller_spec.rb

## RSpec favorites_controller.rb

require 'spec_helper'

describe FavoritesController do
  before :each do
    @bookmark = create(:bookmark)
    @favorite = create(:favorite)
  end


  describe "POST #create" do 

    it "saves a new favorite to the database" do 
      expect{ post :create, {bookmark_id: @bookmark.id} , favorite: attributes_for(:favorite) }.to change(Favorite,:count).by(1) 
    end
  end 
end

## After running rspec in terminal

Failures:

  1) FavoritesController POST #create saves a new favorite to the database
     Failure/Error: expect{ post :create, {bookmark_id: @bookmark.id} , favorite: attributes_for(:favorite) }.to change(Favorite,:count).by(1)
     NoMethodError:
       undefined method `favorites' for nil:NilClass
     # ./app/controllers/favorites_controller.rb:5:in `create'
     # ./spec/controllers/favorites_controller_spec.rb:15:in `block (4 levels) in <top (required)>'
     # ./spec/controllers/favorites_controller_spec.rb:15:in `block (3 levels) in <top (required)>'

Finished in 4.03 seconds
14 examples, 1 failure, 1 pending

Failed examples:

rspec ./spec/controllers/favorites_controller_spec.rb:14 # FavoritesController POST #create saves a new favorite to the database

## favorites_controller.rb (the actual controller)

class FavoritesController < ApplicationController

  def create
    @bookmark = Bookmark.find(params[:bookmark_id])
    favorite = current_user.favorites.create(bookmark: @bookmark)
    if favorite.valid?
      flash[:notice] = "Favorited post"
      redirect_to :back
    else
      flash[:error] = "Unable to add favorite."
      redirect_to :back
    end
  end

  def destroy
    favorite = current_user.favorites.find(params[:id])
    if favorite.destroy
      flash[:notice] = "Removed favorite."
      redirect_to :back
    else
      flash[:error] = "Unable to remove favorite. Please try again."
      redirect_to :back
    end
  end
end