Élisson Michael elissonmichael

AGILE ESTIMATING AND PLANNING

Mike Cohn

CHAPTER 1. The Purpose of Planning

Plans help to guide investment decisions (this project is worth to begin?), know who needs to be available to work on a project during a given period and know if a project is on track.

Chapter 1 - Object Oriented Design

The purpose of design is to allow you to do design later, and it's primary goal is to reduce the cost of change.

SOLID Design:

Single Responsibility Principle: a class should have only a single responsibility
Open-Closed Principle: Software entities should be open for extension, but closed for modification (inherit instead of modifying existing classes).
Liskov Substitution: Objects in a program should be replaceable with instances of their subtypes without altering the correctness of that program.
Interface Segregation: Many client-specific interfaces are better than one general-purpose interface.

MiniTest::Spec

use must for positive expectations and wont for negative expectations.

must_be | list.size.must_be :zero?
must_be_close_to | subject.size.must_be_close_to 1,1
must_be_empty | list.must_be_empty
must_be_instance_of | list.must_be_instance_of Array
must_be_kind_of | list.must_be_kind_of Enumerable

	class Carrinho
	attr_reader :pedidos
	def initialize(args)
	@pedido_class = args[:pedido_class]
	@pedidos = []
	end

	def adicionar(produto)
	@pedidos << @pedido_class.new(produto)
	end

	# -- encoding : utf-8 --
	#
	# Rodrigo Soares Manhães, professor homenageado pelos formandos da turma de 2007
	# do curso de Ciência da Computação da UENF.
	#
	# 20/09/2012
	#
	##

	class Aluno < ActiveRecord::Base

	pt-BR:
	will_paginate:
	previous_label: "← Anterior"
	next_label: "Próximo →"
	page_gap: "…"
	page_entries_info:
	single_page_html:
	zero: "Nenhum registro encontrado"
	one: "Apenas 1 registro encontrado"
	other: "Mostrando todos os %{count} registros encontrados"

	describe 'Expectation Matchers' do

	describe 'equivalence matchers' do

	it 'will match loose equality with #eq' do
	a = "2 cats"
	b = "2 cats"
	expect(a).to eq(b)
	expect(a).to be == b # synonym for #eq

	# Sample reference code for doubles/mocks, stubs, and spies in RSpec
	# Taken from Kevin Skoglund's RSpec tutorial on Lynda.com

	describe 'Doubles' do

	it "allows stubbing methods" do
	dbl = double("Chant")
	allow(dbl).to receive(:hey!)
	expect(dbl).to respond_to(:hey!)
	end