Skip to content

Instantly share code, notes, and snippets.

@helphop helphop/spec.rb
Created Aug 25, 2016

Embed
What would you like to do?
# 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
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.