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=Navigating=
    visit('/projects')
    visit(post_comments_path(post))

=Clicking links and buttons=
    click_link('id-of-link')
    click_link('Link Text')
    click_button('Save')
    click('Link Text') # Click either a link or a button
    click('Button Value')

viniciussbs

module ExternalUrlHelper
  def google_url
    "www.google.com"
  end
end

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class Interpreter
  def do_a() print "there, "; end
  def do_d() print "Hello ";  end
  def do_e() print "!\n";     end
  def do_v() print "Dave";    end
  Dispatcher = {
    "a" => instance_method(:do_a),
    "d" => instance_method(:do_d),
    "e" => instance_method(:do_e),
    "v" => instance_method(:do_v)

viniciussbs

class Person
  attr_reader :attributes # "getter"
	
  def initialize
    @attributes = {}
  end

  def name
    @attributes[:name]
  end

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desc 'rolls back migrations in current branch not present in other'
task :rollback_branch_migrations, [:other_branch] do |t, args|
  load "#{Dir.pwd}/Rakefile"

  branch_migrations = BranchMigrations.new(args.other_branch)

  puts ['Rollback the following migrations', branch_migrations, 'y,n? ']
  next if %w[no n NO N].include?(STDIN.gets.chomp)

  migrate_task = Rake::Task['db:migrate:down']

viniciussbs

Easy Twitter API OAuth 2 Access

1. Go to your applications. Create a new one, and find the values in the Consumer Key and Consumer Secret fields.

2. Use OAuth client information to produce an OAuth 2 access token:

   curl -i --user <consumer_key>:<consumer_secret> -X POST https://api.twitter.com/oauth2/token -d "grant_type=client_credentials"
   
   {"access_token":"<oauth2_token>","token_type":"bearer"}% 
   

viniciussbs

|------------------------------------------------------------+----------------------------------------+------------------------------------------------------+
| Time.now.at_beginning_of_day                               | Time.now                               | Time.now.at_end_of_day                               |
| 2014-10-29 00:00:00 -0200                                  | 2014-10-29 14:25:24 -0200              | 2014-10-29 23:59:59 -0200                            |
|------------------------------------------------------------+----------------------------------------+------------------------------------------------------+
| Time.now.at_beginning_of_day.in_time_zone("Brasilia")      | Time.now.in_time_zone("Brasilia")      | Time.now.at_end_of_day.in_time_zone("Brasilia")      |
| Wed, 29 Oct 2014 00:00:00 BRST -02:00                      | Wed, 29 Oct 2014 14:42:46 BRST -02:00  | Wed, 29 Oct 2014 23:59:59 BRST -02:00                |
|------------------------------------------------------------+--------

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# I'm in Brasilia time zone: BRT -03:00 (or BRTS -02:00 during Daylighy Saving Time).
Time.zone.name
#=> "Brasilia"

# Get time with time zone:
yesterday = Time.zone.now.yesterday
#=> Tue, 28 Oct 2014 17:04:11 BRST -02:00

# Full-day period with time zone:
yesterday.all_day

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# post_loc.txt contains the json you want to post
# -p means to POST it
# -H adds an Auth header (could be Basic or Token)
# -T sets the Content-Type
# -c is concurrent clients
# -n is the number of requests to run in the test

ab -p post_loc.txt -T application/json -H 'Authorization: Token abcd1234' -c 10 -n 2000 http://example.com/api/v1/locations/

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x = 42
# 42

x = x + 1
# 43

^x = x + 1
# ** (MatchError) no match of right hand side value: 44