A importância dos Testes no mundo do Ruby - Parte 2

Esta Live aconteceu no dia 17/05/2017 às 20h30 e foi a Parte 2 de uma conversa muito bacana sobre a Importância dos Testes no mundo do Ruby on Rails.
Veja a Parte 1 clicando aqui.

Então vamos lá, o que foi falado na Live:

Testes na Prática

1 – Criando o Projeto:

rails new testing

1	rails new testing

2 – Coloque no seu Gemfile:

* No vídeo eu coloco por engano a gem factory_girl, mas o correto é factory_girl_rails **

gem 'materialize-sass'
gem 'material_icons'

group :test do
gem "factory_girl_rails", "~> 4.0"
gem "ffaker"
end

group :development, :test do
gem 'rspec-rails', '~> 3.5'
gem 'byebug', platform: :mri
end

gem 'materialize-sass'

gem 'material_icons'

group :test do

gem "factory_girl_rails", "~> 4.0"

gem "ffaker"

end

group :development, :test do

gem 'rspec-rails', '~> 3.5'

gem 'byebug', platform: :mri

end

3 – Instale rodando:

bundle install

1	bundle install

4 – Altere o app/assets/stylesheets/application.css para app/assets/stylesheets/application.scss e coloque nele:

@import "materialize";
@import "material_icons";
@import "task"

@import "materialize";

@import "material_icons";

@import "task"

5 – Coloque no app/assets/javascripts/application.js:

//= require jquery
//= require jquery_ujs
//= require turbolinks
//= require materialize-sprockets
//= require_tree .

//= require jquery

//= require jquery_ujs

//= require turbolinks

//= require materialize-sprockets

//= require_tree .

6 – Instale o Rspec:

rails generate rspec:install

1	rails generate rspec:install

7 – Crie uma pasta chamada support dentro da pasta spec

8 – Agora crie um arquivo chamado factory_girl.rb e coloque nele:

RSpec.configure do |config|
config.include FactoryGirl::Syntax::Methods
end

RSpec.configure do |config|

config.include FactoryGirl::Syntax::Methods

end

9 – Coloque no spec/rails_helper.rb:

Dir[Rails.root.join('spec/support/**/*.rb')].each { |f| require f }

1	Dir[Rails.root.join('spec/support/*/.rb')].each { \|f\| require f }

10 – Crie uma pasta chamada factories dentro da pasta spec

11 – Gere o nosso controller principal:

rails g controller Task index create done --skip-template-engine

1	rails g controller Task index create done --skip-template-engine

12 – Coloque no Routes:

Rails.application.routes.draw do
root to: 'task#index'
get 'task/index'
put 'task/done/:id' => 'task#done', :as => 'done_task'
post 'task/create' => 'task#create'
end

Rails.application.routes.draw do

root to: 'task#index'

get 'task/index'

put 'task/done/:id' => 'task#done', :as => 'done_task'

post 'task/create' => 'task#create'

end

13 – Gere o nosso Model Task rodando:

rails g model tasks description:text status:integer

1	rails g model tasks description:text status:integer

14 – Coloque no model Task:

class Task < ApplicationRecord
enum status: [ :done, :todo ]
validates_presence_of :description, :status

def done
self.update(status: :done)
end
end

class Task < ApplicationRecord

enum status: [ :done, :todo ]

validates_presence_of :description, :status

def done

self.update(status: :done)

end

15 – Crie o banco de dados e as migrations rodando:

rake db:create && rake db:migrate

1	rake db:create && rake db:migrate

16 – Coloque esse conteúdo no Controller Task:

class TaskController < ApplicationController
before_action :set_task, only: [:done]

def index
@tasks = Task.where(status: :todo)
@tasks_done = Task.where(status: :done)
end

def create
@task = Task.new(description: params[:description], status: :todo)

if @task.save
redirect_to({ action: 'index' }, notice: "Task was successfully created.")
else
redirect_to({ action: 'index' }, notice: "Task was not created.")
end
end

def done
if @task.done
redirect_to({ action: 'index' }, notice: "Task is done.")
else
redirect_to({ action: 'index' }, notice: "Problem in put task done.")
end
end

private
def set_task
@task = Task.find(params[:id])
end
end

class TaskController < ApplicationController

before_action :set_task, only: [:done]

def index

@tasks = Task.where(status: :todo)

@tasks_done = Task.where(status: :done)

end

def create

@task = Task.new(description: params[:description], status: :todo)

if @task.save

redirect_to({ action: 'index' }, notice: "Task was successfully created.")

else

redirect_to({ action: 'index' }, notice: "Task was not created.")

end

def done

if @task.done

redirect_to({ action: 'index' }, notice: "Task is done.")

else

redirect_to({ action: 'index' }, notice: "Problem in put task done.")

end

private

def set_task

@task = Task.find(params[:id])

end

17 – Crie uma pasta chamada task em views e dentro um arquivo chamado index.html.erb e coloque nele:

<div class="container">
  <h4 class="header">New Task</h4>
  <div class="row">
   <form class="col s12">
     <div class="row">
       <div class="input-field col s12">
         <input id="description" type="text" class="validate">
         <label for="description">Task Description</label>
       </div>
     </div>
     <div class="row">
       <div class="col s3 right">
         <button class="btn waves-effect waves-light right" type="submit" name="action">Create
           <i class="material-icons right">send</i>
         </button>
       </div>
     </div>
   </form>
 </div>

  <% if @tasks.present? %>
    <h4 class="header">What I have to do?</h4>
    <ul class="collection">
      <% @tasks.each do |task| %>
        <li class="collection-item dismissable"><div><%= task.description %><a href="/todo/<%= task.id %>" class="secondary-content"><i class="material-icons">check</i></a></div></li>
        <%= link_to 'Activate', done_task(task.id), method: :put %>
      <% end %>
    </ul>
  <% end %>

  <h4 class="header">What I do</h4>
  <ul class="collection">
    <% @tasks_done.each do |task| %>
      <li class="collection-item dismissable"><div><%= task.description %><a href="/todo/<%= task.id %>" class="secondary-content"><i class="material-icons">check</i></a></div></li>
      <%= link_to 'Activate', done_task(task.id), method: :put %>
    <% end %>
  </ul>
</div>

<label for="description">Task Description</label>

</div>

<button class="btn waves-effect waves-light right" type="submit" name="action">Create

</button>

</div>

</form>

</div>

<% if @tasks.present? %>

<% @tasks.each do |task| %>

<li class="collection-item dismissable"><div><%= task.description %><a href="/todo/<%= task.id %>" class="secondary-content"><i class="material-icons">check</i></a></div></li>

<%= link_to 'Activate', done_task(task.id), method: :put %>

<% end %>

</ul>

<% end %>

<% @tasks_done.each do |task| %>

<li class="collection-item dismissable"><div><%= task.description %><a href="/todo/<%= task.id %>" class="secondary-content"><i class="material-icons">check</i></a></div></li>

<%= link_to 'Activate', done_task(task.id), method: :put %>

<% end %>

</ul>

</div>

18 – Coloque no arquivo app/assets/stylesheets/task.scss:

.header{
  color: #ee6e73;
  font-weight: 300;
}

.header{

color: #ee6e73;

font-weight: 300;

}

19 – Vamos criar o teste do nosso Model Task, no arquivo spec/models/task_spec.rb coloque:

require 'rails_helper'

RSpec.describe Task, type: :model do
before do
@task = create(:task, status: :todo)
end

it "The status is done" do
@task.done
expect(@task.status).to eq("done")
end
end

require 'rails_helper'

RSpec.describe Task, type: :model do

before do

@task = create(:task, status: :todo)

end

it "The status is done" do

@task.done

expect(@task.status).to eq("done")

end

20 – Crie um arquivo chamado task.rb na pasta factories e coloque nele:

require 'ffaker'

FactoryGirl.define do
factory :task do |f|
f.description { FFaker::Lorem.word }
f.status { :todo }
end
end

require 'ffaker'

FactoryGirl.define do

factory :task do |f|

f.description { FFaker::Lorem.word }

f.status { :todo }

end

21 – Rode o teste:

rspec spec/models/task_spec.rb

1	rspec spec/models/task_spec.rb

22 – Vamos criar os testes do nosso Controller Task, no arquivo spec/controllers/task_controller_spec.rb coloque:

require 'rails_helper'

RSpec.describe TaskController, type: :controller do
describe "PUT #done" do
before do
end

context "with valid task" do
before do
@task = create(:task, status: :todo)
end

it "The status will be changed" do
put :done, params: {id: @task.id}
@task.reload
expect(@task.status).to eql("done")
end
end
end
end

require 'rails_helper'

RSpec.describe TaskController, type: :controller do

describe "PUT #done" do

before do

end

context "with valid task" do

before do

@task = create(:task, status: :todo)

end

it "The status will be changed" do

put :done, params: {id: @task.id}

@task.reload

expect(@task.status).to eql("done")

end

23 – Rode o teste:

rspec spec/controllers/task_controller_spec.rb

1	rspec spec/controllers/task_controller_spec.rb

24 – Pronto \o/

Se você ainda não se inscreveu no nosso canal do Youtube se inscreva e ajude o OneBitCode ir mais longe 🙂

Muito Obrigado por acompanhar este Blog!
Sua presença aqui é uma honra para mim,

Abraços,
Leonardo Scorza

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janeiro 17, 2020

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A importância dos Testes no mundo do Ruby – Parte 2

Testes na Prática

***** No vídeo eu coloco por engano a gem factory_girl, mas o correto é factory_girl_rails ******

* No vídeo eu coloco por engano a gem factory_girl, mas o correto é factory_girl_rails **