MoneyParserTest

require 'test/unit'
require 'money_parser'

class MoneyParserTest < Test::Unit::TestCase
  
  
  def assert_string_parses ( string, expected )
    money_result = MoneyParser.parse(string)
    assert_equal expected, money_result,
      "Expected '#{string}' to return #{expected}!"
  end
  
  def provide_string_and_expected
    {
      "one dollar"    => 1,
      "two dollars"   => 2,
      "three dollars" => 3,
      "four dollars"  => 4,
      "five dollars"  => 5,
      "six dollars"   => 6,
      "seven dollars" => 7,
      "eight dollars" => 8,
      "nine dollars"  => 9,
      "ten dollars" => 10,
      "eleven dollars" => 11,
      "twelve dollars" => 12,
      "thirteen dollars" => 13,
      "fourteen dollars" => 14,
      "fifteen dollars" => 15,
      "sixteen dollars" => 16,
      "seventeen dollars" => 17,
      "eighteen dollars" => 18,
      "nineteen dollars" => 19,
      "twenty dollars" => 20,
      "twenty-one dollars" => 21,
      "twenty one dollars" => 21,
      "twenty-five dollars" => 25,
      "twenty six dollars" => 26, 
      "twenty-six dollars" => 26,
      "thirty seven dollars" => 37,
      "ninety one dollars" => 91,
      ##"one hundred dollars" => 100,
      ##"seventy eleven dollars" => nil,
        'one hundred and eleven dollars' => 111,
    }
  end #provide_string_and_expected
  
  def test_all
    provide_string_and_expected.each do
        |string, expected|
        assert_string_parses string, expected
    end
  end
  
end #MoneyParserTest