require File.dirname(__FILE__) + "/../test_helper"

class FreqTest < Test::Unit::TestCase
  context "a frequency" do
    context "when parsed as a string" do
      should "construct the correct frequency" do
        expectations.each do |s, expect|
          assert_equal expect, Freq.parse(s).to_seconds
        end
      end
    end
    context "next" do
      should "return the correct Time value" do
        expectations.each do |s, expect|
          t = Time.now
          assert_equal t + expect, Freq.parse(s).next(t)
        end
      end
    end
  end
  
  def expectations
    {
      'every second' => Freq::SECOND,
      'once a second' => Freq::SECOND,
      'every minute' => Freq::MINUTE,
      'once a minute' => Freq::MINUTE,
      'every hour' => Freq::HOUR,
      'once an hour' => Freq::HOUR,
      'every day' => Freq::DAY,
      'once a day' => Freq::DAY,
      'every week' => Freq::WEEK,
      'once a week' => Freq::WEEK,
      'every month' => Freq::MONTH,
      'once a month' => Freq::MONTH,
      'every year' => Freq::YEAR,
      'once a year' => Freq::YEAR,
      
      'every other second' => Freq::SECOND * 2,
      'every other minute' => Freq::MINUTE * 2,
      'every other hour' => Freq::HOUR * 2,
      'every other day' => Freq::DAY * 2,
      'every other week' => Freq::WEEK * 2,
      
      'every 2 seconds' => Freq::SECOND * 2,
      'every 10 seconds' => Freq::SECOND * 10,
      'every 2 minutes' => Freq::MINUTE * 2,
      'every 10 minutes' => Freq::MINUTE * 10,
      'every 2 hours' => Freq::HOUR * 2,
      'every 10 hours' => Freq::HOUR * 10,
      'every 2 days' => Freq::DAY * 2,
      'every 10 days' => Freq::DAY * 10,
      'every 2 weeks' => Freq::WEEK * 2,
      'every 10 weeks' => Freq::WEEK * 10,
      
      'once every 2 seconds' => Freq::SECOND * 2,
      'twice every 2 seconds' => Freq::SECOND * 1,
      
      '1 time every 2 seconds' => Freq::SECOND * 2,
      '1 time every second' => Freq::SECOND * 1,
      '10 times every minute' => Freq::SECOND * 6,
      '5 times every other day' => Freq::DAY / 5 * 2,
      
      'twice a minute' => Freq::MINUTE / 2,
      '4 times a minute' => Freq::MINUTE / 4,
      'four times a minute' => Freq::MINUTE / 4,
      'ten times per minute' => Freq::MINUTE / 10,
      'twice an hour' => Freq::HOUR / 2,
      '4 times an hour' => Freq::HOUR / 4,
      'four times an hour' => Freq::HOUR / 4,
      'ten times per hour' => Freq::HOUR / 10,
      'twice a day' => Freq::DAY / 2,
      '4 times a day' => Freq::DAY / 4,
      'four times a day' => Freq::DAY / 4,
      'ten times per day' => Freq::DAY / 10,
      'twice a week' => Freq::WEEK / 2,
      '4 times a week' => Freq::WEEK / 4,
      'four times a week' => Freq::WEEK / 4,
      'ten times per week' => Freq::WEEK / 10,
    }
  end
end