require "spec_helper"
class FizzBuzz
  def print(item, printer)
    printer << "Fizz" if fizzy?(item)
    printer << "Buzz" if buzzy?(item)
    #printer << item unless fizzy?(item) || buzzy?(item)
    printer << item if printer.string == ""
  end

  def fizzy?(item)
    (item % 3) == 0
  end

  def buzzy?(item)
    (item % 5) == 0
  end
end

describe FizzBuzz do
  subject { FizzBuzz.new }
  let(:printer) { StringIO.new }

  it "should return Fizz for multiples of 3" do
    subject.print(3, printer)
    expect(printer.string).to eq("Fizz")
  end

  it "should return Buzz for multiples of 5" do
    subject.print(5, printer)
    expect(printer.string).to eq("Buzz")
  end

  it "should return FizzBuzz for multiples of 3 and 5" do
    subject.print(15, printer)
    expect(printer.string).to eq("FizzBuzz")
  end

  it "should return the number for everything else" do
    subject.print(16, printer)
    expect(printer.string).to eq("16")
  end
end