tomstuart

module ScoreHelpers
  def the_letter(letter, options)
    score = options[:is_worth]
    # TODO Remember the letter's score for the current example group.
  end
end

module ScoreMatchers
  extend RSpec::Matchers::DSL

tomstuart

module ScoreHelpers
  def self.extended(base)
    base.class_eval do
      let(:scores) { {} }
    end
  end

  def the_letter(letter, options)
    score = options[:is_worth]

tomstuart

require 'active_support/time'
require 'active_support/testing/time_helpers'
require 'rspec/expectations'
include ActiveSupport::Testing::TimeHelpers
include RSpec::Matchers

class Person < Struct.new(:birthday)
  def age
    Date.today.year - birthday.year
  end

tomstuart

$ mkdir ~/.boot2docker
$ curl http://static.dockerfiles.io/boot2docker-v1.0.0-virtualbox-guest-additions-v4.3.12.iso > ~/.boot2docker/boot2docker.iso
$ boot2docker init
$ VBoxManage sharedfolder add boot2docker-vm -name home -hostpath /Users
$ boot2docker up
$ sudo sh -c "echo `boot2docker ip 2>/dev/null` boot2docker >> /etc/hosts"
$ echo export DOCKER_HOST=tcp://$(boot2docker ip 2>/dev/null):2375 >> .bash_profile

tomstuart

require 'rspec/core'

examples = RSpec.describe 'a "Hello world" object' do
  before(:each) do
    @hello_world = HelloWorld.new
  end

  it 'says "Hello world"' do
    raise unless @hello_world.message == 'Hello world'
  end

tomstuart

$ cat Gemfile
source 'https://rubygems.org/'

$ time ruby -e 'puts "Hello world"'
Hello world

real	0m0.197s
user	0m0.117s
sys	0m0.073s

tomstuart

[
  {
    "textToMatch": "HISCOX",
    "description": "Liability & indemnity insurance",
    "vat": "0",
    "category": "Insurance",
    "shouldHaveAttachment": false,
    "ecStatus": "Non-EC"
  },
  {

tomstuart

class BWT
  def encode(string)
    chars = string.chars + ['$']
    chars.each_index.map(&chars.method(:rotate)).sort.map(&:last).join
  end

  def decode(string)
    chars = string.chars
    chars.inject([]) { |table| chars.zip(table).sort }.
      map(&:join).detect { |s| s.end_with?('$') }.chop

tomstuart

before function call:                     at start of function call:

ARG: args for caller                           args for caller
     saved state for caller                    saved state for caller
LCL: locals for caller                         locals for caller
     stack for caller                          stack for caller
     args for callee             -->      ARG: args for callee
 SP:                                           saved state for callee
                                          LCL: locals for callee
                                           SP:

tomstuart

#http://www.nhs.uk/NHSEngland/Healthcosts/Pages/Prescriptioncosts.aspx
 
Given a user who is 60 or older
When they collect a prescription
Then it should be free
 
Given a user who is younger than 16
When they collect a prescription
Then it should be free