# Test Case
# require 'phone_letters_to_numbers.rb'
require File.basename(__FILE__).gsub(/\Atest_|\.rb\E/,'')
require 'test/unit'
class PhoneNumTest < Test::Unit::TestCase
  def test_convert
    assert_equal '1-877-222-4357', '1-877-ABC-HELP'.convert_to_phone_number
  end
  def test_texting
    assert_equal '*44 33 555 555 666 # 44 444', 'Hello hi'.how_to_text
    assert_equal 'Hello hi', '*44 33 555 555 666 # 44 444'.decode_text
  end
end