Graph/tests/date_axis_test.php - zetacomponents - Git at Google

 <?php
 /**
  * ezcGraphDateAxisTest
  *
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
  * regarding copyright ownership.  The ASF licenses this file
  * to you under the Apache License, Version 2.0 (the
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
  *   http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  * KIND, either express or implied.  See the License for the
  * specific language governing permissions and limitations
  * under the License.
  *
  * @package Graph
  * @version //autogen//
  * @subpackage Tests
  * @copyright Copyright (C) 2005-2010 eZ Systems AS. All rights reserved.
  * @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0
  */

 require_once dirname( __FILE__ ) . '/test_case.php';

 /**
  * Tests for ezcGraph class.
  *
  * @package Graph
  * @subpackage Tests
  */
 class ezcGraphDateAxisTest extends ezcGraphTestCase
 {
     protected $basePath;

     protected $tempDir;

     protected $chart;

 	public static function suite()
 	{
 		return new PHPUnit_Framework_TestSuite( "ezcGraphDateAxisTest" );
 	}

     protected function setUp()
     {
         date_default_timezone_set( 'Europe/Berlin' );

         static $i = 0;
         $this->tempDir = $this->createTempDir( __CLASS__ . sprintf( '_%03d_', ++$i ) ) . '/';
         $this->basePath = dirname( __FILE__ ) . '/data/';

         $this->chart = new ezcGraphLineChart();
         $this->chart->xAxis = new ezcGraphChartElementDateAxis();
     }

     protected function tearDown()
     {
         if ( !$this->hasFailed() )
         {
             $this->removeTempDir();
         }

         unset( $this->chart );
     }

     public function testManualScaling()
     {
         $this->chart->xAxis->startDate = 0;
         $this->chart->xAxis->endDate = 100;
         $this->chart->xAxis->interval = 10;

         $this->chart->data['some data'] = new ezcGraphArrayDataSet( array( 10 => 12, 37 => 235, 43 => 17, 114 => 39 ) );

         try
         {
             $this->chart->render( 500, 200 );
         }
         catch ( ezcGraphFontRenderingException $e )
         {
             // Ignore
         }

         $this->assertEquals(
             0,
             $this->chart->xAxis->startDate,
             'Wrong starting date. '
         );

         $this->assertEquals(
             100,
             $this->chart->xAxis->endDate,
             'Wrong end date. '
         );

         $this->assertEquals(
             10,
             $this->chart->xAxis->interval,
             'Wrong interval. '
         );
     }

     public function testManualBoundingsForScaling()
     {
         $this->chart->xAxis->startDate = 0;
         $this->chart->xAxis->endDate = 100;

         $this->chart->data['some data'] = new ezcGraphArrayDataSet( array( 10 => 12, 37 => 235, 43 => 17, 114 => 39 ) );

         try
         {
             $this->chart->render( 500, 200 );
         }
         catch ( ezcGraphFontRenderingException $e )
         {
             // Ignore
         }

         $this->assertEquals(
             0,
             $this->chart->xAxis->startDate,
             'Wrong starting date. '
         );

         $this->assertEquals(
             100,
             $this->chart->xAxis->endDate,
             'Wrong end date. '
         );

         $this->assertEquals(
             10,
             $this->chart->xAxis->interval,
             'Wrong interval. '
         );
     }

     public function testManualIntervalForScaling()
     {
         $this->chart->xAxis->interval = 10;

         $this->chart->data['some data'] = new ezcGraphArrayDataSet( array( 10 => 12, 37 => 235, 43 => 17, 114 => 39 ) );

         try
         {
             $this->chart->render( 500, 200 );
         }
         catch ( ezcGraphFontRenderingException $e )
         {
             // Ignore
         }

         $this->assertEquals(
             10,
             $this->chart->xAxis->startDate,
             'Wrong starting date. '
         );

         $this->assertEquals(
             120,
             $this->chart->xAxis->endDate,
             'Wrong end date. '
         );

         $this->assertEquals(
             10,
             $this->chart->xAxis->interval,
             'Wrong interval. '
         );
     }

     public function testAutomagicScalingSingle1()
     {
         $this->chart->data['some data'] = new ezcGraphArrayDataSet( array( 10 => 12, 37 => 235, 43 => 17, 114 => 39 ) );
         try
         {
             $this->chart->render( 500, 200 );
         }
         catch ( ezcGraphFontRenderingException $e )
         {
             // Ignore
         }

         $this->assertEquals(
             0,
             $this->chart->xAxis->startDate,
             'Wrong starting date. '
         );

         $this->assertEquals(
             120,
             $this->chart->xAxis->endDate,
             'Wrong end date. '
         );

         $this->assertEquals(
             30,
             $this->chart->xAxis->interval,
             'Wrong interval. '
         );
     }

     public function testAutomagicScalingSingle2()
     {
         $this->chart->data['some data'] = new ezcGraphArrayDataSet( array( 30010 => 12, 30037 => 235, 30043 => 17, 30114 => 39 ) );
         try
         {
             $this->chart->render( 500, 200 );
         }
         catch ( ezcGraphFontRenderingException $e )
         {
             // Ignore
         }

         $this->assertEquals(
             30000,
             $this->chart->xAxis->startDate,
             'Wrong starting date. '
         );

         $this->assertEquals(
             30120,
             $this->chart->xAxis->endDate,
             'Wrong end date. '
         );

         $this->assertEquals(
             30,
             $this->chart->xAxis->interval,
             'Wrong interval. '
         );
     }

     public function testAutomagicScalingSingle3()
     {
         $this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
             mktime( 10, 13, 57, 5, 7, 2006 ) => 324,
             mktime( 10, 46, 13, 5, 7, 2006 ) => 324,
             mktime( 11, 15, 45, 5, 7, 2006 ) => 324,
             mktime( 12, 32, 01, 5, 7, 2006 ) => 324,
         ) );
         try
         {
             $this->chart->render( 500, 200 );
         }
         catch ( ezcGraphFontRenderingException $e )
         {
             // Ignore
         }

         $this->assertEquals(
             'Sun, 07 May 2006 10:00:00 +0200',
             date( 'r', $this->chart->xAxis->startDate ),
             'Wrong starting date. '
         );

         $this->assertEquals(
             'Sun, 07 May 2006 13:00:00 +0200',
             date( 'r', $this->chart->xAxis->endDate ),
             'Wrong end date. '
         );

         $this->assertEquals(
             1800,
             $this->chart->xAxis->interval,
             'Wrong interval. '
         );
     }

     public function testAutomagicScalingSingle4()
     {
         $this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
             mktime( 10, 13, 57, 5, 7, 2006 ) => 324,
             mktime( 17, 46, 13, 5, 7, 2006 ) => 324,
             mktime( 11, 15, 45, 5, 8, 2006 ) => 324,
             mktime( 20, 32, 1, 5, 8, 2006 ) => 324,
             mktime( 8, 43, 19, 5, 9, 2006 ) => 324,
         ) );
         try
         {
             $this->chart->render( 500, 200 );
         }
         catch ( ezcGraphFontRenderingException $e )
         {
             // Ignore
         }

         $this->assertEquals(
             'Sun, 07 May 2006 06:00:00 +0200',
             date( 'r', $this->chart->xAxis->startDate ),
             'Wrong starting date. '
         );

         $this->assertEquals(
             'Tue, 09 May 2006 12:00:00 +0200',
             date( 'r', $this->chart->xAxis->endDate ),
             'Wrong end date. '
         );

         $this->assertEquals(
             21600,
             $this->chart->xAxis->interval,
             'Wrong interval. '
         );
     }

     public function testAutomagicScalingSingle5()
     {
         $this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
             mktime( 1, 0, 0, 1, 1, 2001 ) => 324,
             mktime( 1, 0, 0, 1, 1, 2002 ) => 324,
             mktime( 1, 0, 0, 1, 1, 2003 ) => 324,
             mktime( 1, 0, 0, 1, 1, 2004 ) => 324,
         ) );
         try
         {
             $this->chart->render( 500, 200 );
         }
         catch ( ezcGraphFontRenderingException $e )
         {
             // Ignore
         }

         $this->assertEquals(
             'Mon, 01 Jan 2001 01:00:00 +0100',
             date( 'r', $this->chart->xAxis->startDate ),
             'Wrong starting date. '
         );

         $this->assertEquals(
             'Thu, 01 Jan 2004 01:00:00 +0100',
             date( 'r', $this->chart->xAxis->endDate ),
             'Wrong end date. '
         );

         $this->assertEquals(
             31536000,
             $this->chart->xAxis->interval,
             'Wrong interval. '
         );
     }

     public function testPositionLeft()
     {
         $this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
             mktime( 10, 13, 57, 5, 7, 2006 ) => 324,
             mktime( 17, 46, 13, 5, 7, 2006 ) => 324,
             mktime( 11, 15, 45, 5, 8, 2006 ) => 324,
             mktime( 20, 32, 1, 5, 8, 2006 ) => 324,
             mktime( 8, 43, 19, 5, 9, 2006 ) => 324,
         ) );
         $this->chart->xAxis->position = ezcGraph::LEFT;
         try
         {
             $this->chart->render( 500, 200 );
         }
         catch ( ezcGraphFontRenderingException $e )
         {
             // Ignore
         }

         $this->assertEquals(
             0.,
             $this->chart->xAxis->getCoordinate( false ),
             'Wrong initial axis position. ',
             .05
         );

         $this->assertEquals(
             0.,
             $this->chart->xAxis->getCoordinate( mktime( 6, 0, 0, 5, 7, 2006 ) ),
             'Wrong minimal value. ',
             .05
         );

         $this->assertEquals(
             .575,
             $this->chart->xAxis->getCoordinate( mktime( 13, 1, 34, 5, 8, 2006 ) ),
             'Wrong mid value. ',
             .05
         );

         $this->assertEquals(
             1.,
             $this->chart->xAxis->getCoordinate( mktime( 12, 0, 0, 5, 9, 2006 ) ),
             'Wrong maximum value. ',
             .05
         );
     }

     public function testPositionRight()
     {
         $this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
             mktime( 10, 13, 57, 5, 7, 2006 ) => 324,
             mktime( 17, 46, 13, 5, 7, 2006 ) => 324,
             mktime( 11, 15, 45, 5, 8, 2006 ) => 324,
             mktime( 20, 32, 1, 5, 8, 2006 ) => 324,
             mktime( 8, 43, 19, 5, 9, 2006 ) => 324,
         ) );
         $this->chart->xAxis->position = ezcGraph::RIGHT;
         try
         {
             $this->chart->render( 500, 200 );
         }
         catch ( ezcGraphFontRenderingException $e )
         {
             // Ignore
         }

         $this->assertEquals(
             1.,
             $this->chart->xAxis->getCoordinate( false ),
             'Wrong initial axis position. ',
             .05
         );

         $this->assertEquals(
             1.,
             $this->chart->xAxis->getCoordinate( mktime( 6, 0, 0, 5, 7, 2006 ) ),
             'Wrong minimal value. ',
             .05
         );

         $this->assertEquals(
             .425,
             $this->chart->xAxis->getCoordinate( mktime( 13, 1, 34, 5, 8, 2006 ) ),
             'Wrong mid value. ',
             .05
         );

         $this->assertEquals(
             0.,
             $this->chart->xAxis->getCoordinate( mktime( 12, 0, 0, 5, 9, 2006 ) ),
             'Wrong maximum value. ',
             .05
         );
     }

     public function testStrToTimeLabelConvertion()
     {
         $this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
             '1.1.2001' => 324,
             '1.1.2002' => 324,
             '1.1.2003' => 324,
             '1.1.2004' => 324,
         ) );

         try
         {
             $this->chart->render( 500, 200 );
         }
         catch ( ezcGraphFontRenderingException $e )
         {
             // Ignore
         }

         $this->assertEquals(
             'Mon, 01 Jan 2001 01:00:00 +0100',
             date( 'r', $this->chart->xAxis->startDate ),
             'Wrong starting date. '
         );

         $this->assertEquals(
             'Thu, 01 Jan 2004 01:00:00 +0100',
             date( 'r', $this->chart->xAxis->endDate ),
             'Wrong end date. '
         );

         $this->assertEquals(
             31536000,
             $this->chart->xAxis->interval,
             'Wrong interval. '
         );
     }

     public function testRenderedLabels()
     {
         $this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
             '1.1.2001' => 324,
             '1.1.2002' => 324,
             '1.1.2003' => 324,
             '1.1.2004' => 324,
         ) );

         try
         {
             $this->chart->render( 500, 200 );
         }
         catch ( ezcGraphFontRenderingException $e )
         {
             // Ignore
         }

         $steps = $this->chart->xAxis->getSteps();

         $expectedLabels = array(
             '2001', '2002', '2003', '2004'
         );

         foreach ( $steps as $nr => $step )
         {
             $this->assertSame(
                 $step->label,
                 $expectedLabels[$nr],
                 'Label not as expected'
             );
         }
     }

     public function testRenderedLabelsWithLabelFormattingCallback()
     {
         $this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
             '1.1.2001' => 324,
             '1.1.2002' => 324,
             '1.1.2003' => 324,
             '1.1.2004' => 324,
         ) );
         $this->chart->xAxis->labelCallback = create_function(
             '$label',
             'return "*$label*";'
         );

         try
         {
             $this->chart->render( 500, 200 );
         }
         catch ( ezcGraphFontRenderingException $e )
         {
             // Ignore
         }

         $steps = $this->chart->xAxis->getSteps();

         $expectedLabels = array(
             '*2001*', '*2002*', '*2003*', '*2004*'
         );

         foreach ( $steps as $nr => $step )
         {
             $this->assertSame(
                 $step->label,
                 $expectedLabels[$nr],
                 'Label not as expected'
             );
         }
     }

     public function testStrToTimeLabelConvertionRendering()
     {
         $filename = $this->tempDir . __FUNCTION__ . '.svg';

         $chart = new ezcGraphLineChart();
         $chart->data['some data'] = new ezcGraphArrayDataSet( array(
             '1.1.2001' => 12,
             '1.1.2002' => 324,
             '1.1.2003' => 238,
             '1.1.2004' => 123,
         ) );
         $chart->data['some data']->symbol = ezcGraph::DIAMOND;

         $chart->render( 500, 200, $filename );

         $this->compare(
             $filename,
             $this->basePath . 'compare/' . __CLASS__ . '_' . __FUNCTION__ . '.svg'
         );
     }

     public function testFloatDataSetKeys()
     {
         $filename = $this->tempDir . __FUNCTION__ . '.svg';

         $this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
             '231.1' => 12,
             '651.2' => 324,
             '3241.3' => 238,
             '3292.4' => 123,
         ) );
         $this->chart->data['some data']->symbol = ezcGraph::DIAMOND;

         $this->chart->render( 500, 200, $filename );

         $this->compare(
             $filename,
             $this->basePath . 'compare/' . __CLASS__ . '_' . __FUNCTION__ . '.svg'
         );
     }

     public function testMonthInterval1()
     {
         $filename = $this->tempDir . __FUNCTION__ . '.svg';

         $this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
             strtotime( '2006-10-16' ) => 7.78507871321,
             strtotime( '2006-10-30' ) => 7.52224503765,
             strtotime( '2006-11-20' ) => 7.29226557153,
             strtotime( '2006-11-28' ) => 7.06228610541,
             strtotime( '2006-12-05' ) => 6.66803559206,
             strtotime( '2006-12-11' ) => 6.37234770705,
             strtotime( '2006-12-28' ) => 6.04517453799,
         ) );
         $this->chart->data['some data']->symbol = ezcGraph::DIAMOND;
         $this->chart->xAxis->startDate = strtotime( '2006-10-01' );

         $this->chart->render( 500, 200, $filename );

         $this->compare(
             $filename,
             $this->basePath . 'compare/' . __CLASS__ . '_' . __FUNCTION__ . '.svg'
         );
     }

     public function testMonthInterval2()
     {
         $filename = $this->tempDir . __FUNCTION__ . '.svg';

         $this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
             strtotime( '2006-10-16' ) => 7.78507871321,
             strtotime( '2006-10-30' ) => 7.52224503765,
             strtotime( '2006-11-20' ) => 7.29226557153,
             strtotime( '2006-11-28' ) => 7.06228610541,
             strtotime( '2006-12-05' ) => 6.66803559206,
             strtotime( '2006-12-11' ) => 6.37234770705,
             strtotime( '2006-12-28' ) => 6.04517453799,
         ) );
         $this->chart->xAxis->startDate = strtotime( '2006-10-04' );
         $this->chart->data['some data']->symbol = ezcGraph::DIAMOND;

         $this->chart->render( 500, 200, $filename );

         $this->compare(
             $filename,
             $this->basePath . 'compare/' . __CLASS__ . '_' . __FUNCTION__ . '.svg'
         );
     }

     public function testMonthInterval3()
     {
         $filename = $this->tempDir . __FUNCTION__ . '.svg';

         $this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
             strtotime( '2006-10-16' ) => 7.78507871321,
             strtotime( '2006-10-30' ) => 7.52224503765,
             strtotime( '2006-11-20' ) => 7.29226557153,
             strtotime( '2006-11-28' ) => 7.06228610541,
             strtotime( '2006-12-05' ) => 6.66803559206,
             strtotime( '2006-12-11' ) => 6.37234770705,
             strtotime( '2006-12-28' ) => 6.04517453799,
         ) );
         $this->chart->xAxis->endDate = strtotime( '2006-12-30' );
         $this->chart->data['some data']->symbol = ezcGraph::DIAMOND;

         $this->chart->render( 500, 200, $filename );

         $this->compare(
             $filename,
             $this->basePath . 'compare/' . __CLASS__ . '_' . __FUNCTION__ . '.svg'
         );
     }

     public function testMonthInterval4()
     {
         $filename = $this->tempDir . __FUNCTION__ . '.svg';

         $this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
             strtotime( '2006-10-16' ) => 7.78507871321,
             strtotime( '2006-10-30' ) => 7.52224503765,
             strtotime( '2006-11-20' ) => 7.29226557153,
             strtotime( '2006-11-28' ) => 7.06228610541,
             strtotime( '2006-12-05' ) => 6.66803559206,
             strtotime( '2006-12-11' ) => 6.37234770705,
             strtotime( '2006-12-28' ) => 6.04517453799,
         ) );
         $this->chart->xAxis->startDate = strtotime( '2006-10-03' );
         $this->chart->xAxis->endDate = strtotime( '2007-01-01' );
         $this->chart->data['some data']->symbol = ezcGraph::DIAMOND;

         $this->chart->render( 500, 200, $filename );

         $this->compare(
             $filename,
             $this->basePath . 'compare/' . __CLASS__ . '_' . __FUNCTION__ . '.svg'
         );
     }

     public function testDateParsingException()
     {
         try
         {
             $this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
                 'invalid time' => 7.78507871321,
             ) );

             $this->chart->render( 500, 200 );
         }
         catch ( ezcGraphErrorParsingDateException $e )
         {
             return;
         }

         $this->fail( 'Expected ezcGraphErrorParsingDateException.' );
     }
 }

 ?>
	<?php
	/**
	* ezcGraphDateAxisTest
	*
	* Licensed to the Apache Software Foundation (ASF) under one
	* or more contributor license agreements. See the NOTICE file
	* distributed with this work for additional information
	* regarding copyright ownership. The ASF licenses this file
	* to you under the Apache License, Version 2.0 (the
	* "License"); you may not use this file except in compliance
	* with the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing,
	* software distributed under the License is distributed on an
	* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
	* KIND, either express or implied. See the License for the
	* specific language governing permissions and limitations
	* under the License.
	*
	* @package Graph
	* @version //autogen//
	* @subpackage Tests
	* @copyright Copyright (C) 2005-2010 eZ Systems AS. All rights reserved.
	* @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0
	*/

	require_once dirname( __FILE__ ) . '/test_case.php';

	/**
	* Tests for ezcGraph class.
	*
	* @package Graph
	* @subpackage Tests
	*/
	class ezcGraphDateAxisTest extends ezcGraphTestCase
	{
	protected $basePath;

	protected $tempDir;

	protected $chart;

	public static function suite()
	{
	return new PHPUnit_Framework_TestSuite( "ezcGraphDateAxisTest" );
	}

	protected function setUp()
	{
	date_default_timezone_set( 'Europe/Berlin' );

	static $i = 0;
	$this->tempDir = $this->createTempDir( __CLASS__ . sprintf( '_%03d_', ++$i ) ) . '/';
	$this->basePath = dirname( __FILE__ ) . '/data/';

	$this->chart = new ezcGraphLineChart();
	$this->chart->xAxis = new ezcGraphChartElementDateAxis();
	}

	protected function tearDown()
	{
	if ( !$this->hasFailed() )
	{
	$this->removeTempDir();
	}

	unset( $this->chart );
	}

	public function testManualScaling()
	{
	$this->chart->xAxis->startDate = 0;
	$this->chart->xAxis->endDate = 100;
	$this->chart->xAxis->interval = 10;

	$this->chart->data['some data'] = new ezcGraphArrayDataSet( array( 10 => 12, 37 => 235, 43 => 17, 114 => 39 ) );

	try
	{
	$this->chart->render( 500, 200 );
	}
	catch ( ezcGraphFontRenderingException $e )
	{
	// Ignore
	}

	$this->assertEquals(
	0,
	$this->chart->xAxis->startDate,
	'Wrong starting date. '
	);

	$this->assertEquals(
	100,
	$this->chart->xAxis->endDate,
	'Wrong end date. '
	);

	$this->assertEquals(
	10,
	$this->chart->xAxis->interval,
	'Wrong interval. '
	);
	}

	public function testManualBoundingsForScaling()
	{
	$this->chart->xAxis->startDate = 0;
	$this->chart->xAxis->endDate = 100;

	$this->chart->data['some data'] = new ezcGraphArrayDataSet( array( 10 => 12, 37 => 235, 43 => 17, 114 => 39 ) );

	try
	{
	$this->chart->render( 500, 200 );
	}
	catch ( ezcGraphFontRenderingException $e )
	{
	// Ignore
	}

	$this->assertEquals(
	0,
	$this->chart->xAxis->startDate,
	'Wrong starting date. '
	);

	$this->assertEquals(
	100,
	$this->chart->xAxis->endDate,
	'Wrong end date. '
	);

	$this->assertEquals(
	10,
	$this->chart->xAxis->interval,
	'Wrong interval. '
	);
	}

	public function testManualIntervalForScaling()
	{
	$this->chart->xAxis->interval = 10;

	$this->chart->data['some data'] = new ezcGraphArrayDataSet( array( 10 => 12, 37 => 235, 43 => 17, 114 => 39 ) );

	try
	{
	$this->chart->render( 500, 200 );
	}
	catch ( ezcGraphFontRenderingException $e )
	{
	// Ignore
	}

	$this->assertEquals(
	10,
	$this->chart->xAxis->startDate,
	'Wrong starting date. '
	);

	$this->assertEquals(
	120,
	$this->chart->xAxis->endDate,
	'Wrong end date. '
	);

	$this->assertEquals(
	10,
	$this->chart->xAxis->interval,
	'Wrong interval. '
	);
	}

	public function testAutomagicScalingSingle1()
	{
	$this->chart->data['some data'] = new ezcGraphArrayDataSet( array( 10 => 12, 37 => 235, 43 => 17, 114 => 39 ) );
	try
	{
	$this->chart->render( 500, 200 );
	}
	catch ( ezcGraphFontRenderingException $e )
	{
	// Ignore
	}

	$this->assertEquals(
	0,
	$this->chart->xAxis->startDate,
	'Wrong starting date. '
	);

	$this->assertEquals(
	120,
	$this->chart->xAxis->endDate,
	'Wrong end date. '
	);

	$this->assertEquals(
	30,
	$this->chart->xAxis->interval,
	'Wrong interval. '
	);
	}

	public function testAutomagicScalingSingle2()
	{
	$this->chart->data['some data'] = new ezcGraphArrayDataSet( array( 30010 => 12, 30037 => 235, 30043 => 17, 30114 => 39 ) );
	try
	{
	$this->chart->render( 500, 200 );
	}
	catch ( ezcGraphFontRenderingException $e )
	{
	// Ignore
	}

	$this->assertEquals(
	30000,
	$this->chart->xAxis->startDate,
	'Wrong starting date. '
	);

	$this->assertEquals(
	30120,
	$this->chart->xAxis->endDate,
	'Wrong end date. '
	);

	$this->assertEquals(
	30,
	$this->chart->xAxis->interval,
	'Wrong interval. '
	);
	}

	public function testAutomagicScalingSingle3()
	{
	$this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
	mktime( 10, 13, 57, 5, 7, 2006 ) => 324,
	mktime( 10, 46, 13, 5, 7, 2006 ) => 324,
	mktime( 11, 15, 45, 5, 7, 2006 ) => 324,
	mktime( 12, 32, 01, 5, 7, 2006 ) => 324,
	) );
	try
	{
	$this->chart->render( 500, 200 );
	}
	catch ( ezcGraphFontRenderingException $e )
	{
	// Ignore
	}

	$this->assertEquals(
	'Sun, 07 May 2006 10:00:00 +0200',
	date( 'r', $this->chart->xAxis->startDate ),
	'Wrong starting date. '
	);

	$this->assertEquals(
	'Sun, 07 May 2006 13:00:00 +0200',
	date( 'r', $this->chart->xAxis->endDate ),
	'Wrong end date. '
	);

	$this->assertEquals(
	1800,
	$this->chart->xAxis->interval,
	'Wrong interval. '
	);
	}

	public function testAutomagicScalingSingle4()
	{
	$this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
	mktime( 10, 13, 57, 5, 7, 2006 ) => 324,
	mktime( 17, 46, 13, 5, 7, 2006 ) => 324,
	mktime( 11, 15, 45, 5, 8, 2006 ) => 324,
	mktime( 20, 32, 1, 5, 8, 2006 ) => 324,
	mktime( 8, 43, 19, 5, 9, 2006 ) => 324,
	) );
	try
	{
	$this->chart->render( 500, 200 );
	}
	catch ( ezcGraphFontRenderingException $e )
	{
	// Ignore
	}

	$this->assertEquals(
	'Sun, 07 May 2006 06:00:00 +0200',
	date( 'r', $this->chart->xAxis->startDate ),
	'Wrong starting date. '
	);

	$this->assertEquals(
	'Tue, 09 May 2006 12:00:00 +0200',
	date( 'r', $this->chart->xAxis->endDate ),
	'Wrong end date. '
	);

	$this->assertEquals(
	21600,
	$this->chart->xAxis->interval,
	'Wrong interval. '
	);
	}

	public function testAutomagicScalingSingle5()
	{
	$this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
	mktime( 1, 0, 0, 1, 1, 2001 ) => 324,
	mktime( 1, 0, 0, 1, 1, 2002 ) => 324,
	mktime( 1, 0, 0, 1, 1, 2003 ) => 324,
	mktime( 1, 0, 0, 1, 1, 2004 ) => 324,
	) );
	try
	{
	$this->chart->render( 500, 200 );
	}
	catch ( ezcGraphFontRenderingException $e )
	{
	// Ignore
	}

	$this->assertEquals(
	'Mon, 01 Jan 2001 01:00:00 +0100',
	date( 'r', $this->chart->xAxis->startDate ),
	'Wrong starting date. '
	);

	$this->assertEquals(
	'Thu, 01 Jan 2004 01:00:00 +0100',
	date( 'r', $this->chart->xAxis->endDate ),
	'Wrong end date. '
	);

	$this->assertEquals(
	31536000,
	$this->chart->xAxis->interval,
	'Wrong interval. '
	);
	}

	public function testPositionLeft()
	{
	$this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
	mktime( 10, 13, 57, 5, 7, 2006 ) => 324,
	mktime( 17, 46, 13, 5, 7, 2006 ) => 324,
	mktime( 11, 15, 45, 5, 8, 2006 ) => 324,
	mktime( 20, 32, 1, 5, 8, 2006 ) => 324,
	mktime( 8, 43, 19, 5, 9, 2006 ) => 324,
	) );
	$this->chart->xAxis->position = ezcGraph::LEFT;
	try
	{
	$this->chart->render( 500, 200 );
	}
	catch ( ezcGraphFontRenderingException $e )
	{
	// Ignore
	}

	$this->assertEquals(
	0.,
	$this->chart->xAxis->getCoordinate( false ),
	'Wrong initial axis position. ',
	.05
	);

	$this->assertEquals(
	0.,
	$this->chart->xAxis->getCoordinate( mktime( 6, 0, 0, 5, 7, 2006 ) ),
	'Wrong minimal value. ',
	.05
	);

	$this->assertEquals(
	.575,
	$this->chart->xAxis->getCoordinate( mktime( 13, 1, 34, 5, 8, 2006 ) ),
	'Wrong mid value. ',
	.05
	);

	$this->assertEquals(
	1.,
	$this->chart->xAxis->getCoordinate( mktime( 12, 0, 0, 5, 9, 2006 ) ),
	'Wrong maximum value. ',
	.05
	);
	}

	public function testPositionRight()
	{
	$this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
	mktime( 10, 13, 57, 5, 7, 2006 ) => 324,
	mktime( 17, 46, 13, 5, 7, 2006 ) => 324,
	mktime( 11, 15, 45, 5, 8, 2006 ) => 324,
	mktime( 20, 32, 1, 5, 8, 2006 ) => 324,
	mktime( 8, 43, 19, 5, 9, 2006 ) => 324,
	) );
	$this->chart->xAxis->position = ezcGraph::RIGHT;
	try
	{
	$this->chart->render( 500, 200 );
	}
	catch ( ezcGraphFontRenderingException $e )
	{
	// Ignore
	}

	$this->assertEquals(
	1.,
	$this->chart->xAxis->getCoordinate( false ),
	'Wrong initial axis position. ',
	.05
	);

	$this->assertEquals(
	1.,
	$this->chart->xAxis->getCoordinate( mktime( 6, 0, 0, 5, 7, 2006 ) ),
	'Wrong minimal value. ',
	.05
	);

	$this->assertEquals(
	.425,
	$this->chart->xAxis->getCoordinate( mktime( 13, 1, 34, 5, 8, 2006 ) ),
	'Wrong mid value. ',
	.05
	);

	$this->assertEquals(
	0.,
	$this->chart->xAxis->getCoordinate( mktime( 12, 0, 0, 5, 9, 2006 ) ),
	'Wrong maximum value. ',
	.05
	);
	}

	public function testStrToTimeLabelConvertion()
	{
	$this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
	'1.1.2001' => 324,
	'1.1.2002' => 324,
	'1.1.2003' => 324,
	'1.1.2004' => 324,
	) );

	try
	{
	$this->chart->render( 500, 200 );
	}
	catch ( ezcGraphFontRenderingException $e )
	{
	// Ignore
	}

	$this->assertEquals(
	'Mon, 01 Jan 2001 01:00:00 +0100',
	date( 'r', $this->chart->xAxis->startDate ),
	'Wrong starting date. '
	);

	$this->assertEquals(
	'Thu, 01 Jan 2004 01:00:00 +0100',
	date( 'r', $this->chart->xAxis->endDate ),
	'Wrong end date. '
	);

	$this->assertEquals(
	31536000,
	$this->chart->xAxis->interval,
	'Wrong interval. '
	);
	}

	public function testRenderedLabels()
	{
	$this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
	'1.1.2001' => 324,
	'1.1.2002' => 324,
	'1.1.2003' => 324,
	'1.1.2004' => 324,
	) );

	try
	{
	$this->chart->render( 500, 200 );
	}
	catch ( ezcGraphFontRenderingException $e )
	{
	// Ignore
	}

	$steps = $this->chart->xAxis->getSteps();

	$expectedLabels = array(
	'2001', '2002', '2003', '2004'
	);

	foreach ( $steps as $nr => $step )
	{
	$this->assertSame(
	$step->label,
	$expectedLabels[$nr],
	'Label not as expected'
	);
	}
	}

	public function testRenderedLabelsWithLabelFormattingCallback()
	{
	$this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
	'1.1.2001' => 324,
	'1.1.2002' => 324,
	'1.1.2003' => 324,
	'1.1.2004' => 324,
	) );
	$this->chart->xAxis->labelCallback = create_function(
	'$label',
	'return "$label";'
	);

	try
	{
	$this->chart->render( 500, 200 );
	}
	catch ( ezcGraphFontRenderingException $e )
	{
	// Ignore
	}

	$steps = $this->chart->xAxis->getSteps();

	$expectedLabels = array(
	'2001', '2002', '2003', '2004'
	);

	foreach ( $steps as $nr => $step )
	{
	$this->assertSame(
	$step->label,
	$expectedLabels[$nr],
	'Label not as expected'
	);
	}
	}

	public function testStrToTimeLabelConvertionRendering()
	{
	$filename = $this->tempDir . __FUNCTION__ . '.svg';

	$chart = new ezcGraphLineChart();
	$chart->data['some data'] = new ezcGraphArrayDataSet( array(
	'1.1.2001' => 12,
	'1.1.2002' => 324,
	'1.1.2003' => 238,
	'1.1.2004' => 123,
	) );
	$chart->data['some data']->symbol = ezcGraph::DIAMOND;

	$chart->render( 500, 200, $filename );

	$this->compare(
	$filename,
	$this->basePath . 'compare/' . __CLASS__ . '_' . __FUNCTION__ . '.svg'
	);
	}

	public function testFloatDataSetKeys()
	{
	$filename = $this->tempDir . __FUNCTION__ . '.svg';

	$this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
	'231.1' => 12,
	'651.2' => 324,
	'3241.3' => 238,
	'3292.4' => 123,
	) );
	$this->chart->data['some data']->symbol = ezcGraph::DIAMOND;

	$this->chart->render( 500, 200, $filename );

	$this->compare(
	$filename,
	$this->basePath . 'compare/' . __CLASS__ . '_' . __FUNCTION__ . '.svg'
	);
	}

	public function testMonthInterval1()
	{
	$filename = $this->tempDir . __FUNCTION__ . '.svg';

	$this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
	strtotime( '2006-10-16' ) => 7.78507871321,
	strtotime( '2006-10-30' ) => 7.52224503765,
	strtotime( '2006-11-20' ) => 7.29226557153,
	strtotime( '2006-11-28' ) => 7.06228610541,
	strtotime( '2006-12-05' ) => 6.66803559206,
	strtotime( '2006-12-11' ) => 6.37234770705,
	strtotime( '2006-12-28' ) => 6.04517453799,
	) );
	$this->chart->data['some data']->symbol = ezcGraph::DIAMOND;
	$this->chart->xAxis->startDate = strtotime( '2006-10-01' );

	$this->chart->render( 500, 200, $filename );

	$this->compare(
	$filename,
	$this->basePath . 'compare/' . __CLASS__ . '_' . __FUNCTION__ . '.svg'
	);
	}

	public function testMonthInterval2()
	{
	$filename = $this->tempDir . __FUNCTION__ . '.svg';

	$this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
	strtotime( '2006-10-16' ) => 7.78507871321,
	strtotime( '2006-10-30' ) => 7.52224503765,
	strtotime( '2006-11-20' ) => 7.29226557153,
	strtotime( '2006-11-28' ) => 7.06228610541,
	strtotime( '2006-12-05' ) => 6.66803559206,
	strtotime( '2006-12-11' ) => 6.37234770705,
	strtotime( '2006-12-28' ) => 6.04517453799,
	) );
	$this->chart->xAxis->startDate = strtotime( '2006-10-04' );
	$this->chart->data['some data']->symbol = ezcGraph::DIAMOND;

	$this->chart->render( 500, 200, $filename );

	$this->compare(
	$filename,
	$this->basePath . 'compare/' . __CLASS__ . '_' . __FUNCTION__ . '.svg'
	);
	}

	public function testMonthInterval3()
	{
	$filename = $this->tempDir . __FUNCTION__ . '.svg';

	$this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
	strtotime( '2006-10-16' ) => 7.78507871321,
	strtotime( '2006-10-30' ) => 7.52224503765,
	strtotime( '2006-11-20' ) => 7.29226557153,
	strtotime( '2006-11-28' ) => 7.06228610541,
	strtotime( '2006-12-05' ) => 6.66803559206,
	strtotime( '2006-12-11' ) => 6.37234770705,
	strtotime( '2006-12-28' ) => 6.04517453799,
	) );
	$this->chart->xAxis->endDate = strtotime( '2006-12-30' );
	$this->chart->data['some data']->symbol = ezcGraph::DIAMOND;

	$this->chart->render( 500, 200, $filename );

	$this->compare(
	$filename,
	$this->basePath . 'compare/' . __CLASS__ . '_' . __FUNCTION__ . '.svg'
	);
	}

	public function testMonthInterval4()
	{
	$filename = $this->tempDir . __FUNCTION__ . '.svg';

	$this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
	strtotime( '2006-10-16' ) => 7.78507871321,
	strtotime( '2006-10-30' ) => 7.52224503765,
	strtotime( '2006-11-20' ) => 7.29226557153,
	strtotime( '2006-11-28' ) => 7.06228610541,
	strtotime( '2006-12-05' ) => 6.66803559206,
	strtotime( '2006-12-11' ) => 6.37234770705,
	strtotime( '2006-12-28' ) => 6.04517453799,
	) );
	$this->chart->xAxis->startDate = strtotime( '2006-10-03' );
	$this->chart->xAxis->endDate = strtotime( '2007-01-01' );
	$this->chart->data['some data']->symbol = ezcGraph::DIAMOND;

	$this->chart->render( 500, 200, $filename );

	$this->compare(
	$filename,
	$this->basePath . 'compare/' . __CLASS__ . '_' . __FUNCTION__ . '.svg'
	);
	}

	public function testDateParsingException()
	{
	try
	{
	$this->chart->data['some data'] = new ezcGraphArrayDataSet( array(
	'invalid time' => 7.78507871321,
	) );

	$this->chart->render( 500, 200 );
	}
	catch ( ezcGraphErrorParsingDateException $e )
	{
	return;
	}

	$this->fail( 'Expected ezcGraphErrorParsingDateException.' );
	}
	}

	?>