/**
  * A method to test the getPreviousWeekZoneForcastImpressions() method.
  *
  * Test 1: Test with bad input, and ensure false is returned.
  * Test 2: Test with no date in the service locator, and ensure that
  *         false is returned.
  * Test 3: Test with no data, and ensure that an array with the default
  *         forecast for each zone is returned.
  * Test 4: Test with data, and ensure that an array with the correct
  *         forecasts is returned.
  */
 function testGetPreviousWeekZoneForcastImpressions()
 {
     $aConf = $GLOBALS['_MAX']['CONF'];
     $oDbh =& OA_DB::singleton();
     $oDal = new OA_Dal_Maintenance_Priority();
     // Test 1
     $aResult = $oDal->getPreviousWeekZoneForcastImpressions('foo');
     $this->assertFalse($aResult);
     // Test 2
     $oServiceLocator =& OA_ServiceLocator::instance();
     $oServiceLocator->remove('now');
     $aResult = $oDal->getPreviousWeekZoneForcastImpressions(1);
     $this->assertFalse($aResult);
     // Test 3
     $oDate = new Date();
     $oServiceLocator->register('now', $oDate);
     $aResult = $oDal->getPreviousWeekZoneForcastImpressions(1);
     $this->assertTrue(is_array($aResult));
     $this->assertEqual(count($aResult), OX_OperationInterval::operationIntervalsPerWeek());
     for ($operationIntervalID = 0; $operationIntervalID < OX_OperationInterval::operationIntervalsPerWeek(); $operationIntervalID++) {
         $expected = array('zone_id' => 1, 'forecast_impressions' => $oDal->getZoneForecastDefaultZoneImpressions(), 'operation_interval_id' => $operationIntervalID);
         $this->assertEqual($aResult[$operationIntervalID], $expected);
     }
     // Test 4
     // Insert impressions for the previous operation interval
     $aDates = OX_OperationInterval::convertDateToOperationIntervalStartAndEndDates($oDate);
     $aDates = OX_OperationInterval::convertDateToPreviousOperationIntervalStartAndEndDates($aDates['start']);
     $firstIntervalID = OX_OperationInterval::convertDateToOperationIntervalID($aDates['start']);
     $startDate = $aDates['start']->format('%Y-%m-%d %H:%M:%S');
     $endDate = $aDates['start']->format('%Y-%m-%d %H:%M:%S');
     $doDIA = OA_Dal::factoryDO('data_intermediate_ad');
     $aDIAs = DataGenerator::generate($doDIA, 4);
     $doDIA = OA_Dal::staticGetDO('data_intermediate_ad', $aDIAs[0]);
     $startDate = $aDates['start']->format('%Y-%m-%d %H:%M:%S');
     $endDate = $aDates['start']->format('%Y-%m-%d %H:%M:%S');
     $doDIA->date_time = $startDate;
     $doDIA->interval_start = $startDate;
     $doDIA->interval_end = $endDate;
     $doDIA->operation_interval = $aConf['maintenance']['operationInterval'];
     $doDIA->operation_interval_id = $firstIntervalID;
     $doDIA->zone_id = 1;
     $doDIA->ad_id = 1;
     $doDIA->impressions = 4000;
     $doDIA->update();
     // Insert forcast for the (N - 2) OI
     // for two different ads in this OI
     $aDates = OX_OperationInterval::convertDateToPreviousOperationIntervalStartAndEndDates($aDates['start']);
     $secondIntervalID = OX_OperationInterval::convertDateToOperationIntervalID($aDates['start']);
     $startDate = $aDates['start']->format('%Y-%m-%d %H:%M:%S');
     $endDate = $aDates['start']->format('%Y-%m-%d %H:%M:%S');
     $doDIA = OA_Dal::staticGetDO('data_intermediate_ad', $aDIAs[1]);
     $doDIA->date_time = $startDate;
     $doDIA->interval_start = $startDate;
     $doDIA->interval_end = $endDate;
     $doDIA->operation_interval = $aConf['maintenance']['operationInterval'];
     $doDIA->operation_interval_id = $secondIntervalID;
     $doDIA->zone_id = 1;
     $doDIA->ad_id = 1;
     $doDIA->impressions = 4990;
     $doDIA->update();
     $doDIA = OA_Dal::staticGetDO('data_intermediate_ad', $aDIAs[2]);
     $doDIA->date_time = $startDate;
     $doDIA->interval_start = $startDate;
     $doDIA->interval_end = $endDate;
     $doDIA->operation_interval = $aConf['maintenance']['operationInterval'];
     $doDIA->operation_interval_id = $secondIntervalID;
     $doDIA->zone_id = 1;
     $doDIA->ad_id = 2;
     $doDIA->impressions = 10;
     $doDIA->update();
     // Insert forcast for the second previous operation interval, but
     // one week ago (so it should not be in the result set)
     $oNewDate = new Date();
     $oNewDate->copy($aDates['start']);
     $oNewDate->subtractSeconds(SECONDS_PER_WEEK);
     $aDates = OX_OperationInterval::convertDateToPreviousOperationIntervalStartAndEndDates($oNewDate);
     $intervalID = OX_OperationInterval::convertDateToOperationIntervalID($aDates['start']);
     $startDate = $aDates['start']->format('%Y-%m-%d %H:%M:%S');
     $endDate = $aDates['start']->format('%Y-%m-%d %H:%M:%S');
     $doDIA = OA_Dal::staticGetDO('data_intermediate_ad', $aDIAs[3]);
     $doDIA->date_time = $startDate;
     $doDIA->interval_start = $startDate;
     $doDIA->interval_end = $endDate;
     $doDIA->operation_interval = $aConf['maintenance']['operationInterval'];
     $doDIA->operation_interval_id = $intervalID;
     $doDIA->zone_id = 1;
     $doDIA->ad_id = 1;
     $doDIA->impressions = 1000;
     $doDIA->update();
     // What's the current OI?
     $currentIntervalID = OX_OperationInterval::convertDateToOperationIntervalID($oServiceLocator->get('now'));
     $aResult = $oDal->getPreviousWeekZoneForcastImpressions(1);
     $this->assertTrue(is_array($aResult));
     $this->assertEqual(count($aResult), OX_OperationInterval::operationIntervalsPerWeek());
     for ($operationIntervalID = 0; $operationIntervalID < OX_OperationInterval::operationIntervalsPerWeek(); $operationIntervalID++) {
         $this->assertTrue(is_array($aResult[$operationIntervalID]));
         $this->assertEqual(count($aResult[$operationIntervalID]), 3);
         $this->assertEqual($aResult[$operationIntervalID]['zone_id'], 1);
         if ($operationIntervalID == $firstIntervalID || $operationIntervalID == $currentIntervalID) {
             // Current and previous OI forecasts should be the same
             $this->assertEqual($aResult[$operationIntervalID]['forecast_impressions'], 4000);
         } elseif ($operationIntervalID == $secondIntervalID) {
             $this->assertEqual($aResult[$operationIntervalID]['forecast_impressions'], 5000);
         } else {
             $this->assertEqual($aResult[$operationIntervalID]['forecast_impressions'], 4500);
             // average between both known forecast
         }
         $this->assertEqual($aResult[$operationIntervalID]['operation_interval_id'], $operationIntervalID);
     }
     DataGenerator::cleanUp();
 }