require 'test_helper'

class CreditCardFormattingTest < Test::Unit::TestCase
  include ActiveMerchant::Billing::CreditCardFormatting
  
  def test_should_format_number_by_rule
    assert_equal 2005, format(2005, :steven_colbert)
    
    assert_equal '0005', format(05, :four_digits)
    assert_equal '2005', format(2005, :four_digits)
    
    assert_equal '05', format(2005, :two_digits)
    assert_equal '05', format(05, :two_digits)
    assert_equal '08', format(8, :two_digits)
    
    assert format(nil, :two_digits).blank?
    assert format('', :two_digits).blank?
  end
end