/tests/core/Period.test.php

<?php
if(!defined('PIWIK_CONFIG_TEST_INCLUDED'))
{
	require_once dirname(__FILE__)."/../../tests/config_test.php";
}

require_once 'Period.php';
require_once 'Period/Week.php';
require_once 'Period/Month.php';
require_once 'Period/Year.php';
require_once 'Date.php';
class Test_Piwik_Period extends UnitTestCase
{
	function __construct( $title = '')
	{
		parent::__construct( $title );
	}
	
	public function test_getId()
	{
		$period = new Piwik_Period_Day( Piwik_Date::today() );
		$this->assertTrue(  $period->getId() !== 0 );
		$period = new Piwik_Period_Week( Piwik_Date::today() );
		$this->assertTrue(  $period->getId() !== 0 );
		$period = new Piwik_Period_Month( Piwik_Date::today() );
		$this->assertTrue(  $period->getId() !== 0 );
		$period = new Piwik_Period_Year( Piwik_Date::today() );
		$this->assertTrue(  $period->getId() !== 0 );
	}
	
	public function test_getLabel()
	{
		$period = new Piwik_Period_Day( Piwik_Date::today() );
		$label = $period->getLabel();
		$this->assertTrue(  is_string($label) && !empty($label));
		$period = new Piwik_Period_Week( Piwik_Date::today() );
		$label = $period->getLabel();
		$this->assertTrue(  is_string($label) && !empty($label));
		$period = new Piwik_Period_Month( Piwik_Date::today() );
		$label = $period->getLabel();
		$this->assertTrue(  is_string($label) && !empty($label));
		$period = new Piwik_Period_Year( Piwik_Date::today() );
		$label = $period->getLabel();
		$this->assertTrue(  is_string($label) && !empty($label));
	}
	
	/**
	 * Testing Period_Day
	 */
	
	// today is NOT finished
	function test_day_isFinished_today()
	{
		$period = new Piwik_Period_Day( Piwik_Date::today());
		$this->assertEqual( $period->toString(), date("Y-m-d"));
		$this->assertEqual( $period->getSubperiods(), array());
		$this->assertEqual( $period->getNumberOfSubperiods(), 0);
	}
	// yesterday 23:59:59 is finished
	function test_day_isFinished_yesterday()
	{
		
		$period = new Piwik_Period_Day( Piwik_Date::yesterday());
		$this->assertEqual( $period->toString(), date("Y-m-d", time()-86400));
		$this->assertEqual( $period->getSubperiods(), array());
		$this->assertEqual( $period->getNumberOfSubperiods(), 0);
	}
	
	// tomorrow is not finished
	function test_day_isFinished_tomorrow()
	{	
		$period = new Piwik_Period_Day( Piwik_Date::factory(date("Y-m-d",time()+86400)));
		$this->assertEqual( $period->toString(), date("Y-m-d", time()+86400));
		$this->assertEqual( $period->getSubperiods(), array());
		$this->assertEqual( $period->getNumberOfSubperiods(), 0);
	}
	
	// test day doesnt exist 31st feb
	function test_day_isFinished_31stfeb()
	{	
		$period = new Piwik_Period_Day( Piwik_Date::factory("2007-02-31"));
		$this->assertEqual( $period->toString(), "2007-03-03");
		$this->assertEqual( $period->getSubperiods(), array());
		$this->assertEqual( $period->getNumberOfSubperiods(), 0);
	}
	
	// test date that doesn't exist, should return the corresponding correct date
	function test_day_getDateStart1()
	{
		// create the period
		$period = new Piwik_Period_Day( Piwik_Date::factory("2007-02-31"));
		
		// start date
		$startDate = $period->getDateStart();
		
		// expected string
		$this->assertEqual( $startDate->toString(), "2007-03-03");
		
		// check that for a day, getDateStart = getStartEnd
		$this->assertEqual($startDate, $period->getDateEnd() );		
	}
	
	// test normal date
	function test_day_getDateStart2()
	{
		// create the period
		$period = new Piwik_Period_Day( Piwik_Date::factory("2007-01-03"));
		
		// start date
		$startDate = $period->getDateStart();
		
		// expected string
		$this->assertEqual( $startDate->toString(), "2007-01-03");
		
		// check that for a day, getDateStart = getStartEnd
		$this->assertEqual($startDate, $period->getDateEnd() );		
	}
	
	// test last day of year
	function test_day_getDateStart3()
	{
		// create the period
		$period = new Piwik_Period_Day( Piwik_Date::factory("2007-12-31"));
		
		// start date
		$startDate = $period->getDateStart();
		
		// expected string
		$this->assertEqual( $startDate->toString(), "2007-12-31");
		
		// check that for a day, getDateStart = getStartEnd
		$this->assertEqual($startDate, $period->getDateEnd() );		
	}
	

	// test date that doesn't exist, should return the corresponding correct date
	function test_day_getDateEnd1()
	{		
		// create the period
		$period = new Piwik_Period_Day( Piwik_Date::factory("2007-02-31"));
		
		// end date
		$endDate = $period->getDateEnd();
		
		// expected string
		$this->assertEqual( $endDate->toString(), "2007-03-03");
		
	}
	
	// test normal date
	function test_day_getDateEnd2()
	{
		// create the period
		$period = new Piwik_Period_Day( Piwik_Date::factory("2007-04-15"));
		
		// end date
		$endDate = $period->getDateEnd();
		
		// expected string
		$this->assertEqual( $endDate->toString(), "2007-04-15");
	}
	
	// test last day of year
	function test_day_getDateEnd3()
	{
		// create the period
		$period = new Piwik_Period_Day( Piwik_Date::factory("2007-12-31"));
		
		// end date
		$endDate = $period->getDateEnd();
		
		// expected string
		$this->assertEqual( $endDate->toString(), "2007-12-31");
	}
	
	// test date that doesn't exist, should return the corresponding correct date
	
	/**
	 * Testing Period_Month
	 *
	 */
	 // testing december
	 function test_month_Dec()
	 {
	 	$month = new Piwik_Period_Month( Piwik_Date::factory("2006-12-31"));
	 	$correct=array(
			"2006-12-01",
			"2006-12-02",
			"2006-12-03",
			"2006-12-04",
			"2006-12-05",
			"2006-12-06",
			"2006-12-07",
			"2006-12-08",
			"2006-12-09",
			"2006-12-10",
			"2006-12-11",
			"2006-12-12",
			"2006-12-13",
			"2006-12-14",
			"2006-12-15",
			"2006-12-16",
			"2006-12-17",
			"2006-12-18",
			"2006-12-19",
			"2006-12-20",
			"2006-12-21",
			"2006-12-22",
			"2006-12-23",
			"2006-12-24",
			"2006-12-25",
			"2006-12-26",
			"2006-12-27",
			"2006-12-28",
			"2006-12-29",
			"2006-12-30",
			"2006-12-31",);
		$this->assertEqual( $month->toString(), $correct);
	 	$this->assertEqual( $month->getNumberOfSubperiods(), 31);
	 }
	 // testing month feb leap year
	 function test_month_FebLeap()
	 {
	 	$month = new Piwik_Period_Month( Piwik_Date::factory("2024-02-11"));
	 	$correct=array(
			"2024-02-01",
			"2024-02-02",
			"2024-02-03",
			"2024-02-04",
			"2024-02-05",
			"2024-02-06",
			"2024-02-07",
			"2024-02-08",
			"2024-02-09",
			"2024-02-10",
			"2024-02-11",
			"2024-02-12",
			"2024-02-13",
			"2024-02-14",
			"2024-02-15",
			"2024-02-16",
			"2024-02-17",
			"2024-02-18",
			"2024-02-19",
			"2024-02-20",
			"2024-02-21",
			"2024-02-22",
			"2024-02-23",
			"2024-02-24",
			"2024-02-25",
			"2024-02-26",
			"2024-02-27",
			"2024-02-28",
			"2024-02-29",);
		$this->assertEqual( $month->toString(), $correct);
	 	$this->assertEqual( $month->getNumberOfSubperiods(), 29);
	 }
	 // testing month feb non-leap year
	 function test_month_FebNonLeap()
	 {
	 	$month = new Piwik_Period_Month( Piwik_Date::factory("2023-02-11"));
	 	$correct=array(
			"2023-02-01",
			"2023-02-02",
			"2023-02-03",
			"2023-02-04",
			"2023-02-05",
			"2023-02-06",
			"2023-02-07",
			"2023-02-08",
			"2023-02-09",
			"2023-02-10",
			"2023-02-11",
			"2023-02-12",
			"2023-02-13",
			"2023-02-14",
			"2023-02-15",
			"2023-02-16",
			"2023-02-17",
			"2023-02-18",
			"2023-02-19",
			"2023-02-20",
			"2023-02-21",
			"2023-02-22",
			"2023-02-23",
			"2023-02-24",
			"2023-02-25",
			"2023-02-26",
			"2023-02-27",
			"2023-02-28",);
		$this->assertEqual( $month->toString(), $correct);
	 	$this->assertEqual( $month->getNumberOfSubperiods(), 28);
	 }
	 // testing jan
	  function test_month_Jan()
	 {
	 	$month = new Piwik_Period_Month( Piwik_Date::factory("2007-01-01"));
	 	$correct=array(
			"2007-01-01",
			"2007-01-02",
			"2007-01-03",
			"2007-01-04",
			"2007-01-05",
			"2007-01-06",
			"2007-01-07",
			"2007-01-08",
			"2007-01-09",
			"2007-01-10",
			"2007-01-11",
			"2007-01-12",
			"2007-01-13",
			"2007-01-14",
			"2007-01-15",
			"2007-01-16",
			"2007-01-17",
			"2007-01-18",
			"2007-01-19",
			"2007-01-20",
			"2007-01-21",
			"2007-01-22",
			"2007-01-23",
			"2007-01-24",
			"2007-01-25",
			"2007-01-26",
			"2007-01-27",
			"2007-01-28",
			"2007-01-29",
			"2007-01-30",
			"2007-01-31",);
		$this->assertEqual( $month->toString(), $correct);
	 	$this->assertEqual( $month->getNumberOfSubperiods(), 31);
	 }
	 // testing month containing a time change (DST)
	 
	  function test_month_DSTChangeMarch()
	 {
	 	$month = new Piwik_Period_Month( Piwik_Date::factory("2007-02-31"));
	 	$correct=array(
			"2007-03-01",
			"2007-03-02",
			"2007-03-03",
			"2007-03-04",
			"2007-03-05",
			"2007-03-06",
			"2007-03-07",
			"2007-03-08",
			"2007-03-09",
			"2007-03-10",
			"2007-03-11",
			"2007-03-12",
			"2007-03-13",
			"2007-03-14",
			"2007-03-15",
			"2007-03-16",
			"2007-03-17",
			"2007-03-18",
			"2007-03-19",
			"2007-03-20",
			"2007-03-21",
			"2007-03-22",
			"2007-03-23",
			"2007-03-24",
			"2007-03-25",
			"2007-03-26",
			"2007-03-27",
			"2007-03-28",
			"2007-03-29",
			"2007-03-30",
			"2007-03-31",);
		$this->assertEqual( $month->toString(), $correct);
	 	$this->assertEqual( $month->getNumberOfSubperiods(), 31);
	 }
	  function test_month_DSTChangeOct()
	 {
	 	$month = new Piwik_Period_Month( Piwik_Date::factory("2017-10-31"));
	 	$correct=array(
			"2017-10-01",
			"2017-10-02",
			"2017-10-03",
			"2017-10-04",
			"2017-10-05",
			"2017-10-06",
			"2017-10-07",
			"2017-10-08",
			"2017-10-09",
			"2017-10-10",
			"2017-10-11",
			"2017-10-12",
			"2017-10-13",
			"2017-10-14",
			"2017-10-15",
			"2017-10-16",
			"2017-10-17",
			"2017-10-18",
			"2017-10-19",
			"2017-10-20",
			"2017-10-21",
			"2017-10-22",
			"2017-10-23",
			"2017-10-24",
			"2017-10-25",
			"2017-10-26",
			"2017-10-27",
			"2017-10-28",
			"2017-10-29",
			"2017-10-30",
			"2017-10-31",);
		$this->assertEqual( $month->toString(), $correct);
	 	$this->assertEqual( $month->getNumberOfSubperiods(), 31);
	 }
	/**
	 * Testing Period_Week
	 *
	 */
	/* //http://framework.zend.com/issues/browse/ZF-1832
	 function test_week_zendsetweekday()
	 {
	 	$date = Piwik_Date::factory('2006-01-01','YYYY-MM-dd', 'en');
	 	$date->setWeekday(1);	 	
	 	$this->assertEqual('2005-12-26', $date->toString("Y-m-d"));
	 }*/
	// test week between 2 years
	function test_week_Between2years()
	 {
	 	$week = new Piwik_Period_Week( Piwik_Date::factory("2006-01-01"));
	 	$correct=array(
			"2005-12-26",
			"2005-12-27",
			"2005-12-28",
			"2005-12-29",
			"2005-12-30",
			"2005-12-31",
			"2006-01-01",);
		$this->assertEqual( $week->toString(), $correct);
	 	$this->assertEqual( $week->getNumberOfSubperiods(), 7);
	 }
	// test week between 2 months Week Mai 29 To Mai 31 2006
	function test_week_Between2month()
	 {
	 	$week = new Piwik_Period_Week( Piwik_Date::factory("2006-05-29"));
	 	$correct=array(
			"2006-05-29",
			"2006-05-30",
			"2006-05-31",
			"2006-06-01",
			"2006-06-02",
			"2006-06-03",
			"2006-06-04",);
		$this->assertEqual( $week->toString(), $correct);
	 	$this->assertEqual( $week->getNumberOfSubperiods(), 7);
	 }
	// test week between feb and march for leap year
	function test_week_febLeapyear()
	 {
	 	$correct=array(
			'2023-02-27',
			'2023-02-28',
			'2023-03-01',
			'2023-03-02',
			'2023-03-03',
			'2023-03-04',
			'2023-03-05',);
			
	 	$week = new Piwik_Period_Week( Piwik_Date::factory('2023-02-27'));
	 	$this->assertEqual( $week->toString(), $correct);
	 	$this->assertEqual( $week->getNumberOfSubperiods(), 7);
	 	$week = new Piwik_Period_Week( Piwik_Date::factory('2023-03-01'));
	 	$this->assertEqual( $week->toString(), $correct);
	 	$this->assertEqual( $week->getNumberOfSubperiods(), 7);
	 }
	// test week between feb and march for no leap year
	function test_week_febnonLeapyear()
	 {
	 	$correct=array(
			'2024-02-26',
			'2024-02-27',
			'2024-02-28',
			'2024-02-29',
			'2024-03-01',
			'2024-03-02',
			'2024-03-03',);
			
	 	$week = new Piwik_Period_Week( Piwik_Date::factory('2024-02-27'));
	 	$this->assertEqual( $week->toString(), $correct);
	 	$this->assertEqual( $week->getNumberOfSubperiods(), 7);
	 	$week = new Piwik_Period_Week( Piwik_Date::factory('2024-03-01'));
	 	$this->assertEqual( $week->toString(), $correct);
	 	$this->assertEqual( $week->getNumberOfSubperiods(), 7);
	 }
	// test week normal middle of the month
	function test_week_middleofmonth()
	 {
	 	$correct=array(
			'2024-10-07',
			'2024-10-08',
			'2024-10-09',
			'2024-10-10',
			'2024-10-11',
			'2024-10-12',
			'2024-10-13',);
			
	 	$week = new Piwik_Period_Week( Piwik_Date::factory('2024-10-09'));
	 	$this->assertEqual( $week->toString(), $correct);
	 	$this->assertEqual( $week->getNumberOfSubperiods(), 7);
	 }
	 
	 /**
	  * Testing Period_Year
	  */
	 
	 
	// test normal case
	function test_year_normalcase()
	 {
	 	$correct=array(
			'2024-01-01',
			'2024-02-01',
			'2024-03-01',
			'2024-04-01',
			'2024-05-01',
			'2024-06-01',
			'2024-07-01',
			'2024-08-01',
			'2024-09-01',
			'2024-10-01',
			'2024-11-01',
			'2024-12-01',);
		
	 	$year = new Piwik_Period_Year( Piwik_Date::factory('2024-10-09'));
	 	$this->assertEqual( $year->getNumberOfSubperiods(), 12);
	 	$this->assertEqual( $year->toString(), $correct);
	 }
	 
	// test past
	function test_year_pastAndWrongdate()
	 {
	 	$correct=array(
			'2000-01-01',
			'2000-02-01',
			'2000-03-01',
			'2000-04-01',
			'2000-05-01',
			'2000-06-01',
			'2000-07-01',
			'2000-08-01',
			'2000-09-01',
			'2000-10-01',
			'2000-11-01',
			'2000-12-01',
		);
			
	 	$week = new Piwik_Period_Year( Piwik_Date::factory('2000-02-15'));
	 	$this->assertEqual( $week->getNumberOfSubperiods(), 12);
	 	$this->assertEqual( $week->toString(), $correct);
	 }
	 

	// test range 1
	function test_range_today()
	{
	 	$range = new Piwik_Period_Range( 'day', 'last1' );
	 	$today = Piwik_Date::today();
	 	
	 	$correct=array(
			$today->toString(),
		);
		$correct = array_reverse($correct);
	 		
	 	$this->assertEqual( $range->getNumberOfSubperiods(), 1);
	 	$this->assertEqual( $range->toString(), $correct);
	}
	
	function test_range_today_UtcPlus12()
	{
		// rather ugly test, UTC+23 doesn't exist, but it's a way to test that last1 in UTC+23 will be "our" UTC tomorrow
	 	$range = new Piwik_Period_Range( 'day', 'last1', 'UTC+23' );
	 	$today = Piwik_Date::now()->addHour(23);
	 	
	 	$correct=array(
			$today->toString(),
		);
		$correct = array_reverse($correct);
	 		
	 	$this->assertEqual( $range->getNumberOfSubperiods(), 1);
	 	$this->assertEqual( $range->toString(), $correct);
	}
	
	// test range 2
	function test_range_2days()
	{
		
	 	$range = new Piwik_Period_Range( 'day', 'last2' );
	 	$today = Piwik_Date::today();
	 	
	 	$correct=array(
			$today->toString(),
			$today->subDay(1)->toString()
		);
		$correct = array_reverse($correct);
	 		
	 	$this->assertEqual( $range->getNumberOfSubperiods(), 2);
	 	$this->assertEqual( $range->toString(), $correct);
	 }
	// test range 3
	function test_range_5days()
	{
		
	 	$range = new Piwik_Period_Range( 'day', 'last50' );
	 	$today = Piwik_Date::today();
	 	
	 	$correct = array();
	 	for($i=0;$i<50;$i++)
	 	{
	 		$correct[]=$today->subDay($i)->toString();
	 	}
		$correct = array_reverse($correct);
	 		
	 	$this->assertEqual( $range->getNumberOfSubperiods(), 50);
	 	$this->assertEqual( $range->toString(), $correct);
	 }
	// test range 4
	function test_range_previous3days()
	{
		
	 	$range = new Piwik_Period_Range( 'day', 'previous3' );
	 	$yesterday = Piwik_Date::yesterday();
	 	
	 	$correct = array();
	 	for($i=0;$i<3;$i++)
	 	{
	 		$correct[]=$yesterday->subDay($i)->toString();
	 	}
		$correct = array_reverse($correct);
	 	
	 	$this->assertEqual( $range->getNumberOfSubperiods(), 3);
	 	$this->assertEqual( $range->toString(), $correct);
	 }
	 
	// test range date1,date2
	function test_range_comma1()
	{
		
	 	$range = new Piwik_Period_Range( 'day', '2008-01-01,2008-01-03' );
	 	
	 	$correct = array(
	 				'2008-01-01',
	 				'2008-01-02',
	 				'2008-01-03',
 				);
	 	
	 	$this->assertEqual( $range->getNumberOfSubperiods(), count($correct));
	 	$this->assertEqual( $range->toString(), $correct);
	 }

	// test range date1,date2
	function test_range_comma2()
	{
		
	 	$range = new Piwik_Period_Range( 'day', '2007-12-22,2008-01-03' );
	 	
	 	$correct = array(
	 				'2007-12-22',
	 				'2007-12-23',
	 				'2007-12-24',
	 				'2007-12-25',
	 				'2007-12-26',
	 				'2007-12-27',
	 				'2007-12-28',
	 				'2007-12-29',
	 				'2007-12-30',
	 				'2007-12-31',
	 				'2008-01-01',
	 				'2008-01-02',
	 				'2008-01-03',
 				);
	 	
	 	$this->assertEqual( $range->getNumberOfSubperiods(), count($correct));
	 	$this->assertEqual( $range->toString(), $correct);
	 }
	// test range date1,date2
	function test_range_weekcomma1()
	{
		
	 	$range = new Piwik_Period_Range( 'week', '2007-12-22,2008-01-03' );
	 	
	 	$correct = array(
	 		array(
	 				
	 				'2007-12-17',
	 				'2007-12-18',
	 				'2007-12-19',
	 				'2007-12-20',
	 				'2007-12-21',
	 				'2007-12-22',
	 				'2007-12-23',
	 		),
	 		array(
	 				'2007-12-24',
	 				'2007-12-25',
	 				'2007-12-26',
	 				'2007-12-27',
	 				'2007-12-28',
	 				'2007-12-29',
	 				'2007-12-30',
	 		),
	 		array(
	 				'2007-12-31',
	 				'2008-01-01',
	 				'2008-01-02',
	 				'2008-01-03',
	 				'2008-01-04',
	 				'2008-01-05',
	 				'2008-01-06',
	 		)
 		);
	 	
	 	$this->assertEqual( $range->getNumberOfSubperiods(), count($correct));
	 	$this->assertEqual( $range->toString(), $correct);
	 }
	// test range date1,date2
	function test_range_yearcomma1()
	{
		
	 	$range = new Piwik_Period_Range( 'year', '2006-12-22,2007-01-03' );
	 	
	 	$correct = array(
			  array (
			    0 => '2006-01-01',
			    1 => '2006-02-01',
			    2 => '2006-03-01',
			    3 => '2006-04-01',
			    4 => '2006-05-01',
			    5 => '2006-06-01',
			    6 => '2006-07-01',
			    7 => '2006-08-01',
			    8 => '2006-09-01',
			    9 => '2006-10-01',
			    10 => '2006-11-01',
			    11 => '2006-12-01',
			  ),
			  1 => 
			  array (
			    0 => '2007-01-01',
			    1 => '2007-02-01',
			    2 => '2007-03-01',
			    3 => '2007-04-01',
			    4 => '2007-05-01',
			    5 => '2007-06-01',
			    6 => '2007-07-01',
			    7 => '2007-08-01',
			    8 => '2007-09-01',
			    9 => '2007-10-01',
			    10 => '2007-11-01',
			    11 => '2007-12-01',
			  ),
 		);
	 	$this->assertEqual( $range->getNumberOfSubperiods(), count($correct));
	 	$this->assertEqual( $range->toString(), $correct);
	 }
	// test range date1,date2
	function test_range_monthcomma1()
	{
		
	 	$range = new Piwik_Period_Range( 'month', '2006-12-22,2007-01-03' );
	 	
	 	$correct = array(
	 		array(
	 				'2006-12-01',
	 				'2006-12-02',
	 				'2006-12-03',
	 				'2006-12-04',
	 				'2006-12-05',
	 				'2006-12-06',
	 				'2006-12-07',
	 				'2006-12-08',
	 				'2006-12-09',
	 				'2006-12-10',
	 				'2006-12-11',
	 				'2006-12-12',
	 				'2006-12-13',
	 				'2006-12-14',
	 				'2006-12-15',
	 				'2006-12-16',
	 				'2006-12-17',
	 				'2006-12-18',
	 				'2006-12-19',
	 				'2006-12-20',
	 				'2006-12-21',
	 				'2006-12-22',
	 				'2006-12-23',
	 				'2006-12-24',
	 				'2006-12-25',
	 				'2006-12-26',
	 				'2006-12-27',
	 				'2006-12-28',
	 				'2006-12-29',
	 				'2006-12-30',
	 				'2006-12-31',
	 		),
	 		array(
	 				
	 				'2007-01-01',
	 				'2007-01-02',
	 				'2007-01-03',
	 				'2007-01-04',
	 				'2007-01-05',
	 				'2007-01-06',
	 				'2007-01-07',
	 				'2007-01-08',
	 				'2007-01-09',
	 				'2007-01-10',
	 				'2007-01-11',
	 				'2007-01-12',
	 				'2007-01-13',
	 				'2007-01-14',
	 				'2007-01-15',
	 				'2007-01-16',
	 				'2007-01-17',
	 				'2007-01-18',
	 				'2007-01-19',
	 				'2007-01-20',
	 				'2007-01-21',
	 				'2007-01-22',
	 				'2007-01-23',
	 				'2007-01-24',
	 				'2007-01-25',
	 				'2007-01-26',
	 				'2007-01-27',
	 				'2007-01-28',
	 				'2007-01-29',
	 				'2007-01-30',
	 				'2007-01-31',
	 		),
 		);
	 	
	 	$this->assertEqual( $range->getNumberOfSubperiods(), count($correct));
	 	$this->assertEqual( $range->toString(), $correct);
	 }

	// test range WEEK
	function test_range_week()
	{
		
	 	$range = new Piwik_Period_Range( 'week', 'last50' );
	 	$today = Piwik_Date::today();
	 	
	 	$correct = array();
	 	for($i=0;$i<50;$i++)
	 	{
	 		$date = $today->subDay($i*7);
	 		$week = new Piwik_Period_Week($date);
	 		
	 		$correct[]= $week->toString();
	 	}
	 	$correct = array_reverse($correct);
	 	
	 	
	 	$this->assertEqual( $range->getNumberOfSubperiods(), 50);
	 	$this->assertEqual( $range->toString(), $correct);
	 }
	 
	// test range WEEK last1
	function test_range_week_last1()
	{
	 	$range = new Piwik_Period_Range( 'week', 'last1' );
	 	$currentWeek = new Piwik_Period_Week(Piwik_Date::today());
	 	$this->assertEqual( $range->getNumberOfSubperiods(), 1);
	 	$this->assertEqual( $range->toString(), array($currentWeek->toString()));
	 }
	 
	// test range MONTH
	function test_range_month()
	{
		
	 	$range = new Piwik_Period_Range( 'month', 'last20' );
	 	$today = Piwik_Date::today();
	 	
	 	$correct = array();
	 	for($i=0;$i<20;$i++)
	 	{
	 		$date = $today->subMonth($i);
	 		$week = new Piwik_Period_Month($date);
	 		
	 		$correct[]= $week->toString();
	 	}
	 	$correct = array_reverse($correct);
		
	 	$this->assertEqual( $range->getNumberOfSubperiods(), 20);
	 	$this->assertEqual( $range->toString(), $correct);
	 }
	 
	// test range MONTH last1
	function test_range_month_last1()
	{
	 	$range = new Piwik_Period_Range( 'month', 'last1' );
 		$month = new Piwik_Period_Month(Piwik_Date::today());
	 	$this->assertEqual( $range->getNumberOfSubperiods(), 1);
	 	$this->assertEqual( $range->toString(), array($month->toString()));
	 }
	 
	// test range PREVIOUS MONTH
	function test_range_previousmonth()
	{
		
	 	$range = new Piwik_Period_Range( 'month', 'previous10' );
	 	$end = Piwik_Date::today();
	 	$end = $end->subMonth(1);
	 	
	 	$correct = array();
	 	for($i=0;$i<10;$i++)
	 	{
	 		$date = $end->subMonth($i);
	 		$week = new Piwik_Period_Month($date);
	 		
	 		$correct[]= $week->toString();
	 	}
		$correct = array_reverse($correct);
	 	
	 	
	 	$this->assertEqual( $range->getNumberOfSubperiods(), 10);
	 	$this->assertEqual( $range->toString(), $correct);
	 }

	// test range YEAR
	function test_range_year()
	{
		
	 	$range = new Piwik_Period_Range( 'year', 'last10' );
	 	$today = Piwik_Date::today();
	 	
	 	$correct = array();
	 	for($i=0;$i<10;$i++)
	 	{
	 		$date = $today->subMonth(12*$i);
	 		$week = new Piwik_Period_Year($date);
	 		
	 		$correct[]= $week->toString();
	 	}
	 	$correct = array_reverse($correct);
	 	
	 	$this->assertEqual( $range->getNumberOfSubperiods(), 10);
	 	$this->assertEqual( $range->toString(), $correct);
	 }
	 
	// test range YEAR last1
	function test_range_year_last1()
	{
		
	 	$range = new Piwik_Period_Range( 'year', 'last1' );
	 	$currentYear = new Piwik_Period_Year(Piwik_Date::today());
	 	$this->assertEqual( $range->getNumberOfSubperiods(), 1);
	 	$this->assertEqual( $range->toString(), array($currentYear->toString()));
	 }
}