thatrubylove

require 'minitest/autorun'

describe UserPasswordHashCleaner do subject { UserPasswordHashCleaner } describe "call(params)" do it "will return the hash as is if it has a password && password_confirmation" do params = { user: { password: "ok", password_confirmation: "ok", admin: true } }

thatrubylove

module UserPasswordHashCleaner
  extend self

  def call(params)
    ...
    return params if hash_has_password_info?(params)
  end

protected

thatrubylove

require 'minitest/autorun'

describe UserPasswordHashCleaner do
  subject { UserPasswordHashCleaner }
  describe "call(params)" do
    it "will return a hash without the password key if it it's value is blank" do
      params = { user: { password: "", admin: true } }
      subject.call(params).must_equal({ user: { admin: true } })
    end

thatrubylove

module UserPasswordHashCleaner
  extend self

  def call(params)
    ...
    strip_password_keys_from_hash(params)
  end

protected

thatrubylove

module UserPasswordHashCleaner
  extend self

  def call(params)
    return {} if params.nil?
    return params if hash_has_password_info?(params)
    strip_password_keys_from_hash(params)
  end

protected

thatrubylove

ruby user_password_hash_cleaner.rb
....
Finished tests in 0.001046s, 3824.0918 tests/s, 3824.0918 assertions/s.

thatrubylove

numbers = [1,3,5,8,10,54,99]
cards   = [5,3,4,6,2]

# get only the values where the distance is greater than 10
numbers.each_cons(2).select {|a,b| b-a>10 } #=> [[10, 54], [54, 99]]

# determine if the hand is a straight
cards.sort.each_cons(5).all? do |series| 
             (series.first..series.last).to_a == series
           end #=> true

thatrubylove

[1,3]
[3,5]
[5,8]
...
[54,99]

thatrubylove

class Roll < Array

  def small_straight?
    sort.each_cons(4).any? {|vals| in_series?(vals)  }
  end

  def large_straight?
    sort.each_cons(5).all? {|vals| in_series?(vals)  }
  end

thatrubylove

# American good grades
grades = [:A, :A, :B, :B, :C]

# Tiger momma standards
grades.all? {|grade| [:A, :B].include? grade } #=> false

# Next semester...
grades = [:A, :A, :A, :B, :B]
grades.all? {|grade| [:A, :B].include? grade } #=> true