live code de ce soir

acronymizer.rb

def acronymizer(string)
  words = string.split(" ")
  words.map{ |word| word[0].upcase}.join
end

# p acronymizer("What the fuck") #=> "WTF"
# p acronymizer("save our soul") #=> "SOS"
# p acronymizer("read the f**** manual") #=> "RTFM"

encrypt.rb

def encrypt(string)
  alphabet = ("A".."Z").to_a
  letters = string.split("")
  new_letters = letters.map do |letter|
    letter_index = alphabet.index(letter)
    alphabet[letter_index-3]


  end
  return new_letters.join
end

spec_acronymize_spec.rb

require_relative "../acronymizer"


describe "#acronymize" do
  it "returns an empty string when passed an empty string" do
    actual = acronymizer("")
    expected = ""
    expect(actual).to eq(expected) # passes if `actual == expected`
  end

  it "returns WTF" do
    actual = acronymizer("What the fuck")
    expected = "WTF"
    expect(actual).to eq(expected) # passes if `actual == expected`
  end

  it "returns SOS" do
    actual = acronymizer("save our soul")
    expected = "SOS"
    expect(actual).to eq(expected) # passes if `actual == expected`
  end

  it "returns RTFM" do
    actual = acronymizer("read the f**** manual")
    expected = "RTFM"
    expect(actual).to eq(expected) # passes if `actual == expected`
  end

end

spec_encrypt_spec.rb

require_relative "../encrypt"


describe "#encrypt" do
  it "simple encryption should work" do
    actual = encrypt("DEF")
    expected = "ABC"
    expect(actual).to eq(expected) # passes if `actual == expected`
  end
  it "encryption of A should work" do
    actual = encrypt("A")
    expected = "X"
    expect(actual).to eq(expected) # passes if `actual == expected`
  end
end