delba

root to: 'dashboard#index'
get 'signin' => 'sessions#new'

root 'dashboard#index'
get 'signin', to: 'sessions#new'

delba

module ApplicationHelper
  def admins_only
    yield if current_user.try(:admin?)
  end
end

delba

assert_selector 'article', count: Article.count
assert_selector 'article', exact: Article.count

assert find_button('Save article', disabled: true).disabled?

assert has_link?('New article', href: new_article_path)
# assert that a link with text 'New article' and href new_article_path exists
# not necessarily good to track bugs

assert_equal new_article_path, find('a', text: 'New article')[:href]

delba

require 'test_helper'

class ArticleTest < ActiveSupport::TestCase
  delegate :validators_on, to: Article

  test "validates presence of title" do
    refute_emtpy validators_on(:title).grep PresenceValidator
  end

private

delba

# DEFAULTS (notice and alert)

flash.notice = 'notice'
flash[:notice] = 'notice'
redirect_to root_url, notice: 'notice'
notice # in view

# CUSTOM TYPES

add_flash_types :warning

delba

require 'capybara/rails'
require 'capybara/poltergeist'

class ActionDispatch::IntegrationTest
  include Capybara::DSL

  Capybara.javascript_driver = :poltergeist

  setup do
    Capybara.current_driver = Capybara.javascript_driver

delba

$ rails g model user email

=begin
create_table :users do |t|
  t.string :email

  t.timestamp
end
=end

delba

class Person; def hello; 'hello'; end; end;

Person.new.tap do |p|
  puts p.hello
end.tap do |p|
  puts p.hello
end

Person.new.tap { |p|
  puts p.hello

delba

require 'markdown'

class Article < ActiveRecord::Base
  before_save do
    self.html = Markdown.new(content).to_html
  end
end

delba

$(document).on('blur', '#input', function(e) {
  var $this = $(this);
  setTimeout(function() {
    $this.focus();
  });
});