Devise create user and login on test setup - ruby-on-rails

Question

app/controllers/categories_controller.rb:
class CategoriesController < ApplicationController
before_action :set_category, only: [:show, :edit, :update, :destroy]
before_action :authenticate_user!, except: [:index, :show]
# GET /categories
# GET /categories.json
def index
#categories = Category.all
end
# GET /categories/1
# GET /categories/1.json
def show
if session[:cart] then
#cart = session[:cart]
else
#cart = {}
end
end
# GET /categories/new
def new
if current_user.admin?
#category = Category.new
end
end
# GET /categories/1/edit
def edit
if current_user.admin?
end
end
# POST /categories
# POST /categories.json
def create
if current_user.admin?
#category = Category.new(category_params)
respond_to do |format|
if #category.save
format.html { redirect_to #category, notice: 'Category was successfully created.' }
format.json { render :show, status: :created, location: #category }
else
format.html { render :new }
format.json { render json: #category.errors, status: :unprocessable_entity }
end
end
end
end
# PATCH/PUT /categories/1
# PATCH/PUT /categories/1.json
def update
if current_user.admin?
respond_to do |format|
if #category.update(category_params)
format.html { redirect_to #category, notice: 'Category was successfully updated.' }
format.json { render :show, status: :ok, location: #category }
else
format.html { render :edit }
format.json { render json: #category.errors, status: :unprocessable_entity }
end
end
end
end
# DELETE /categories/1
# DELETE /categories/1.json
def destroy
if current_user.admin?
#category.destroy
respond_to do |format|
format.html { redirect_to categories_url, notice: 'Category was successfully destroyed.' }
format.json { head :no_content }
end
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_category
#category = Category.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def category_params
params.require(:category).permit(:name, :desc)
end
end
In the controller above I'm preventing standard users to create, update or destroy categories by checking if current_user.admin?. But it's causing some problems in the tests.
test/controllers/categories_controller.rb:
require 'test_helper'
class CategoriesControllerTest < ActionController::TestCase
setup do
#category = categories(:one)
end
test "should get index" do
get :index
assert_response :success
assert_not_nil assigns(:categories)
end
test "should get new" do
get :new
assert_response :success
end
test "should create category" do
assert_difference('Category.count') do
post :create, category: { desc: #category.desc, name: #category.name }
end
assert_redirected_to category_path(assigns(:category))
end
test "should show category" do
get :show, id: #category
assert_response :success
end
test "should get edit" do
get :edit, id: #category
assert_response :success
end
test "should update category" do
patch :update, id: #category, category: { desc: #category.desc, name: #category.name }
assert_redirected_to category_path(assigns(:category))
end
test "should destroy category" do
assert_difference('Category.count', -1) do
delete :destroy, id: #category
end
assert_redirected_to categories_path
end
end
Because of the restriction, tests related with create, update or destroy are failing. I think I need to create an admin user and login on test setup. But I don't know how to do this.
I'm using Devise gem for users part of the app.
I'm running my tests with rake test:functionals. How can I simulate user create and login in my tests?
If you want to look to the whole project: https://github.com/mertyildiran/SCOR

Answer 1

You can use fixtures to create an admin user in the test database (you probably already have a test/fixtures/users.yml file), and Devise's Test helpers to sign in:
sign_in :user, users(:admin)
If your users are confirmable, remember to set a confirmed_at date.
Check out the Devise wiki article on testing Rails controllers.