class FizzBuzz

# File lib/fizzbuzz_mf.rb, line 15
def self.error_handler(args)
  begin
    raise "Invalid Number of Arguments" unless args.length == 2
    lower = args[0]
    upper = args[1]
    raise "Input is not an integer" unless lower.is_a?(Integer) && upper.is_a?(Integer)
    raise "Input is a negative value" unless lower > -1 && upper > -1
    raise "lower limit is higher than upper limit" unless lower < upper
  end
  return true
end

# File lib/fizzbuzz_mf.rb, line 2
def self.fizzbuzz(*args)
  if error_handler(args)
    (args[0]..args[1]).each do |num|
      fizzbuzz = ""
      fizzbuzz += "Fizz" if num % 3 == 0
      fizzbuzz += "Buzz" if num % 5 == 0
      puts (fizzbuzz == "" ? num : fizzbuzz)
    end
  else
    puts "Error ! Change Input Values"
  end
end