Ilkham Gaysin IlkhamGaysin

How to install PhantomJS on Ubuntu

Version: 1.9.8

Platform: x86_64

First, install or update to the latest system software.

sudo apt-get update
sudo apt-get install build-essential chrpath libssl-dev libxft-dev

Rules for good testing

Look at the following image...

...it shows an object being tested.

You can't see inside the object. All you can do is send it messages. This is an important point to make because we should be "testing the interface, and NOT the implementation" - doing so will allow us to change the implementation without causing our tests to break.

This list is based on aliases_spec.rb.

You can see also Module: RSpec::Matchers API.

matcher	aliased to	description
a_truthy_value	be_truthy	a truthy value
a_falsey_value	be_falsey	a falsey value
be_falsy	be_falsey	be falsy
a_falsy_value	be_falsey	a falsy value

Remove MySQL completely

Open the Terminal
Use mysqldump to backup your databases
Check for MySQL processes with: ps -ax | grep mysql
Stop and kill any MySQL processes
Analyze MySQL on HomeBrew:
```
brew remove mysql
```

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

Clarify and agree on the scope of the system

User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?

	#!/usr/bin/env ruby
	# An HTTP/HTTPS/FTP file downloader library/CLI based upon MiniPortile's
	# HTTP implementation.
	#
	# Author: Jon Maken
	# License: 3-clause BSD
	# Revision: 2012-03-25 23:01:19 -0600

	require 'net/http'
	require 'net/https' if RUBY_VERSION < '1.9'

	module AlertConfirmer
	class << self
	def reject_confirm_from &block
	handle_js_modal 'confirm', false, &block
	end

	def accept_confirm_from &block
	handle_js_modal 'confirm', true, &block
	end

	# A minimalistic CoffeeScript event emitter.
	# Jannis R <[email protected]>
	# https://gist.github.com/derhuerst/5433f5ee3342a1de6d81



	class EventEmitter

	constructor: ->
	@_events = {}

	require 'rails_helper'

	RSpec.describe TodosController, :type => :controller do

	describe "GET #index" do
	#describe "POST #create" do
	#describe "GET #show" do
	#describe "PATCH #update" do (or PUT #update)
	#describe "DELETE #destroy" do
	#describe "GET #new" do

	-# For each locale except the current one
	- (I18n.available_locales - [I18n.locale]).each do \|locale\|
	-# Add a link to the current URL but in `locale` language
	%link{rel: 'alternate', hreflang: locale, href: url_for(locale: locale)}