spec.rb

# Use TDD principles to build out name functionality for a Person.
# Here are the requirements:
# - Add a method to return the full name as a string. A full name includes
#   first, middle, and last name. If the middle name is missing, there shouldn't
#   have extra spaces.
# - Add a method to return a full name with a middle initial. If the middle name
#   is missing, there shouldn't be extra spaces or a period.
# - Add a method to return all initials. If the middle name is missing, the
#   initials should only have two characters.
#
# We've already sketched out the spec descriptions for the #full_name. Try
# building the specs for that method, watch them fail, then write the code to
# make them pass. Then move on to the other two methods, but this time you'll
# create the descriptions to match the requirements above.

class Person
  def initialize(first_name:, middle_name: nil, last_name:)
    @first_name = first_name
    @middle_name = middle_name
    @last_name = last_name
  end

  # implement your behavior here
  
  def full_name
	[@first_name,@middle_name,@last_name].join(' ').squeeze(' ')
  end
  
  
  def full_name_with_middle_initial
  	[@first_name,@middle_name ? @middle_name.chr.concat('.'): '',@last_name].join(' ').squeeze(' ')
  end
  
  def initials
  	[@first_name.chr.concat('.'),@middle_name ? @middle_name.chr.concat('.') : '',@last_name.chr.concat('.')].join(' ').squeeze(' ')
  end
end

RSpec.describe Person do
  describe "#full_name" do
    it "concatenates first name, middle name, and last name with spaces" do
    	p = Person.new(first_name: 'Mitchell', middle_name: 'Seth', last_name:'Gould')
    	
    	expect(p.full_name).to eq('Mitchell Seth Gould')
    
    end
    it "does not add extra spaces if middle name is missing" do
    	p = Person.new(first_name: 'Mitchell', last_name:'Gould')
    	expect(p.full_name).to eq('Mitchell Gould')
    end
  end

  describe "#full_name_with_middle_initial" do
  	it "concatenates first name, middle initial, and last name with spaces" do
  		p = Person.new(first_name: 'Mitchell', middle_name: 'Seth', last_name:'Gould')
  		expect(p.full_name_with_middle_initial).to eq('Mitchell S. Gould')
  	end
  	it "concatenates first name, and last name with no extra spaces if no middle name" do
  		p = Person.new(first_name: 'Mitchell', last_name:'Gould')
  		expect(p.full_name_with_middle_initial).to eq('Mitchell Gould')
  	end
  	
  end
  
  describe "#initials"

  	it "creates initals from first name, middle name, and last name and concatenates them with spaces" do
  		p = Person.new(first_name: 'Mitchell', middle_name: 'Seth', last_name:'Gould')
  		expect(p.full_name_with_middle_initial).to eq('Mitchell S. Gould')
	end
	
  	it "creates initals from first namevand last name and concatenates them without extra spaces" do
  		p = Person.new(first_name: 'Mitchell', last_name:'Gould')
  		expect(p.initials).to eq('M. G.')
	end
  end