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

 <?php
 /**
  * ezcGraphPieChartTest
  *
  * 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 ezcGraphPieChartTest extends ezcGraphTestCase
 {
     protected $basePath;

     protected $tempDir;

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

     protected function setUp()
     {
         static $i = 0;
         if ( version_compare( phpversion(), '5.1.3', '<' ) )
         {
             $this->markTestSkipped( "These tests required atleast PHP 5.1.3" );
         }
         $this->tempDir = $this->createTempDir( __CLASS__ . sprintf( '_%03d_', ++$i ) ) . '/';
         $this->basePath = dirname( __FILE__ ) . '/data/';
     }

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

     public function testPieChartOptionsPropertyLabel()
     {
         $options = new ezcGraphPieChartOptions();

         $this->assertSame(
             '%1$s: %2$d (%3$.1f%%)',
             $options->label,
             'Wrong default value for property label in class ezcGraphPieChartOptions'
         );

         $options->label = '%1$s';
         $this->assertSame(
             '%1$s',
             $options->label,
             'Setting property value did not work for property label in class ezcGraphPieChartOptions'
         );
     }

     public function testPieChartOptionsPropertyLabelCallback()
     {
         $options = new ezcGraphPieChartOptions();

         $this->assertSame(
             null,
             $options->labelCallback,
             'Wrong default value for property labelCallback in class ezcGraphPieChartOptions'
         );

         $options->labelCallback = 'printf';
         $this->assertSame(
             'printf',
             $options->labelCallback,
             'Setting property value did not work for property labelCallback in class ezcGraphPieChartOptions'
         );

         $options->labelCallback = array( $this, __METHOD__ );
         $this->assertSame(
             array( $this, __METHOD__ ),
             $options->labelCallback,
             'Setting property value did not work for property labelCallback in class ezcGraphPieChartOptions'
         );

         try
         {
             $options->labelCallback = 'undefined_function';
         }
         catch ( ezcBasevalueException $e )
         {
             return true;
         }

         $this->fail( 'ezcBasevalueException expected.' );
     }

     public function testPieChartOptionsPropertySum()
     {
         $options = new ezcGraphPieChartOptions();

         $this->assertSame(
             false,
             $options->sum,
             'Wrong default value for property sum in class ezcGraphPieChartOptions'
         );

         $options->sum = 100;
         $this->assertSame(
             100.,
             $options->sum,
             'Setting property value did not work for property sum in class ezcGraphPieChartOptions'
         );
     }

     public function testPieChartOptionsPropertyPercentThreshold()
     {
         $options = new ezcGraphPieChartOptions();

         $this->assertSame(
             0.,
             $options->percentThreshold,
             'Wrong default value for property percentThreshold in class ezcGraphPieChartOptions'
         );

         $options->percentThreshold = .5;
         $this->assertSame(
             .5,
             $options->percentThreshold,
             'Setting property value did not work for property percentThreshold in class ezcGraphPieChartOptions'
         );
     }

     public function testPieChartOptionsPropertyAbsoluteThreshold()
     {
         $options = new ezcGraphPieChartOptions();

         $this->assertSame(
             0.,
             $options->absoluteThreshold,
             'Wrong default value for property absoluteThreshold in class ezcGraphPieChartOptions'
         );

         $options->absoluteThreshold = 5;
         $this->assertSame(
             5.,
             $options->absoluteThreshold,
             'Setting property value did not work for property absoluteThreshold in class ezcGraphPieChartOptions'
         );
     }

     public function testPieChartOptionsPropertySummarizeCaption()
     {
         $options = new ezcGraphPieChartOptions();

         $this->assertSame(
             'Misc',
             $options->summarizeCaption,
             'Wrong default value for property summarizeCaption in class ezcGraphPieChartOptions'
         );

         $options->summarizeCaption = 'Others';
         $this->assertSame(
             'Others',
             $options->summarizeCaption,
             'Setting property value did not work for property summarizeCaption in class ezcGraphPieChartOptions'
         );
     }

     public function testElementGenerationLegend()
     {
         $chart = new ezcGraphPieChart();
         $chart->data['sampleData'] = new ezcGraphArrayDataSet( array( 'sample 1' => 234, 'sample 2' => 21, 'sample 3' => 324, 'sample 4' => 120, 'sample 5' => 1 ) );
         $chart->render( 500, 200 );

         $legend = $this->readAttribute( $chart->legend, 'labels' );

         $this->assertEquals(
             5,
             count( $legend ),
             'Count of legends items should be <5>'
         );

         $this->assertEquals(
             'sample 1',
             $legend[0]['label'],
             'Label of first legend item should be <sample 1>.'
         );

         $this->assertEquals(
             ezcGraphColor::fromHex( '#4E9A06' ),
             $legend[1]['color'],
             'Default color for single label is wrong.'
         );

         $this->assertEquals(
             ezcGraphColor::fromHex( '#CC0000' ),
             $legend[2]['color'],
             'Special color for single label is wrong.'
         );
     }

     public function testInvalidDisplayType()
     {
         $chart = new ezcGraphPieChart();
         $chart->data['sampleData'] = new ezcGraphArrayDataSet( array( 'sample 1' => 234, 'sample 2' => 21, 'sample 3' => 324, 'sample 4' => 120, 'sample 5' => 1 ) );
         $chart->data['sampleData']->displayType = ezcGraph::LINE;

         try
         {
             $chart->render( 500, 200 );
         }
         catch ( ezcGraphInvalidDisplayTypeException $e )
         {
             return true;
         }

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

     public function testPieRenderPieSegments()
     {
         $chart = new ezcGraphPieChart();
         $chart->data['sample'] = new ezcGraphArrayDataSet( array(
             'Mozilla' => 4375,
             'IE' => 345,
             'Opera' => 1204,
             'wget' => 231,
             'Safari' => 987,
         ) );

         $chart->data['sample']->highlight['wget'] = true;

         $mockedRenderer = $this->getMock( 'ezcGraphRenderer2d', array(
             'drawPieSegment',
         ) );

         $mockedRenderer
             ->expects( $this->at( 0 ) )
             ->method( 'drawPieSegment' )
             ->with(
                 $this->equalTo( new ezcGraphBoundings( 80, 0, 400, 200 ) ),
                 $this->equalTo( new ezcGraphContext( 'sample', 'Mozilla' ) ),
                 $this->equalTo( ezcGraphColor::fromHex( '#3465A4' ) ),
                 $this->equalTo( 0., 1. ),
                 $this->equalTo( 220.5, .1 ),
                 $this->equalTo( 'Mozilla: 4375 (61.3%)' ),
                 $this->equalTo( false )
             );
         $mockedRenderer
             ->expects( $this->at( 1 ) )
             ->method( 'drawPieSegment' )
             ->with(
                 $this->equalTo( new ezcGraphBoundings( 80, 0, 400, 200 ) ),
                 $this->equalTo( new ezcGraphContext( 'sample', 'IE' ) ),
                 $this->equalTo( ezcGraphColor::fromHex( '#4E9A06' ) ),
                 $this->equalTo( 220.5, .1 ),
                 $this->equalTo( 238., 1. ),
                 $this->equalTo( 'IE: 345 (4.8%)' ),
                 $this->equalTo( false )
             );
         $mockedRenderer
             ->expects( $this->at( 2 ) )
             ->method( 'drawPieSegment' )
             ->with(
                 $this->equalTo( new ezcGraphBoundings( 80, 0, 400, 200 ) ),
                 $this->equalTo( new ezcGraphContext( 'sample', 'Opera' ) ),
                 $this->equalTo( ezcGraphColor::fromHex( '#CC0000' ) ),
                 $this->equalTo( 238., 1. ),
                 $this->equalTo( 298.6, 1. ),
                 $this->equalTo( 'Opera: 1204 (16.9%)' ),
                 $this->equalTo( false )
             );
         $mockedRenderer
             ->expects( $this->at( 3 ) )
             ->method( 'drawPieSegment' )
             ->with(
                 $this->equalTo( new ezcGraphBoundings( 80, 0, 400, 200 ) ),
                 $this->equalTo( new ezcGraphContext( 'sample', 'wget' ) ),
                 $this->equalTo( ezcGraphColor::fromHex( '#EDD400' ) ),
                 $this->equalTo( 298.6, 1. ),
                 $this->equalTo( 310., 1. ),
                 $this->equalTo( 'wget: 231 (3.2%)' ),
                 $this->equalTo( true )
             );
         $mockedRenderer
             ->expects( $this->at( 4 ) )
             ->method( 'drawPieSegment' )
             ->with(
                 $this->equalTo( new ezcGraphBoundings( 80, 0, 400, 200 ) ),
                 $this->equalTo( new ezcGraphContext( 'sample', 'Safari' ) ),
                 $this->equalTo( ezcGraphColor::fromHex( '#75505B' ) ),
                 $this->equalTo( 310., 1. ),
                 $this->equalTo( 360., 1. ),
                 $this->equalTo( 'Safari: 987 (13.8%)' ),
                 $this->equalTo( false )
             );

         $chart->renderer = $mockedRenderer;
         $chart->render( 400, 200 );
     }

     public function testPieRenderPieSegmentsWithLabelCallback()
     {
         $chart = new ezcGraphPieChart();
         $chart->data['sample'] = new ezcGraphArrayDataSet( array(
             'Mozilla' => 4375,
             'IE' => 345,
             'Opera' => 1204,
             'wget' => 231,
             'Safari' => 987,
         ) );

         $chart->data['sample']->highlight['wget'] = true;

         $chart->options->labelCallback =
             create_function(
                 '$label, $value, $percent',
                 "return 'Callback: ' . \$label;"
             );

         $mockedRenderer = $this->getMock( 'ezcGraphRenderer2d', array(
             'drawPieSegment',
         ) );

         $mockedRenderer
             ->expects( $this->at( 0 ) )
             ->method( 'drawPieSegment' )
             ->with(
                 $this->equalTo( new ezcGraphBoundings( 80, 0, 400, 200 ) ),
                 $this->equalTo( new ezcGraphContext( 'sample', 'Mozilla' ) ),
                 $this->equalTo( ezcGraphColor::fromHex( '#3465A4' ) ),
                 $this->equalTo( 0., 1. ),
                 $this->equalTo( 220.5, .1 ),
                 $this->equalTo( 'Callback: Mozilla' ),
                 $this->equalTo( false )
             );
         $mockedRenderer
             ->expects( $this->at( 1 ) )
             ->method( 'drawPieSegment' )
             ->with(
                 $this->equalTo( new ezcGraphBoundings( 80, 0, 400, 200 ) ),
                 $this->equalTo( new ezcGraphContext( 'sample', 'IE' ) ),
                 $this->equalTo( ezcGraphColor::fromHex( '#4E9A06' ) ),
                 $this->equalTo( 220.5, .1 ),
                 $this->equalTo( 238., 1. ),
                 $this->equalTo( 'Callback: IE' ),
                 $this->equalTo( false )
             );
         $mockedRenderer
             ->expects( $this->at( 2 ) )
             ->method( 'drawPieSegment' )
             ->with(
                 $this->equalTo( new ezcGraphBoundings( 80, 0, 400, 200 ) ),
                 $this->equalTo( new ezcGraphContext( 'sample', 'Opera' ) ),
                 $this->equalTo( ezcGraphColor::fromHex( '#CC0000' ) ),
                 $this->equalTo( 238., 1. ),
                 $this->equalTo( 298.6, 1. ),
                 $this->equalTo( 'Callback: Opera' ),
                 $this->equalTo( false )
             );
         $mockedRenderer
             ->expects( $this->at( 3 ) )
             ->method( 'drawPieSegment' )
             ->with(
                 $this->equalTo( new ezcGraphBoundings( 80, 0, 400, 200 ) ),
                 $this->equalTo( new ezcGraphContext( 'sample', 'wget' ) ),
                 $this->equalTo( ezcGraphColor::fromHex( '#EDD400' ) ),
                 $this->equalTo( 298.6, 1. ),
                 $this->equalTo( 310., 1. ),
                 $this->equalTo( 'Callback: wget' ),
                 $this->equalTo( true )
             );
         $mockedRenderer
             ->expects( $this->at( 4 ) )
             ->method( 'drawPieSegment' )
             ->with(
                 $this->equalTo( new ezcGraphBoundings( 80, 0, 400, 200 ) ),
                 $this->equalTo( new ezcGraphContext( 'sample', 'Safari' ) ),
                 $this->equalTo( ezcGraphColor::fromHex( '#75505B' ) ),
                 $this->equalTo( 310., 1. ),
                 $this->equalTo( 360., 1. ),
                 $this->equalTo( 'Callback: Safari' ),
                 $this->equalTo( false )
             );

         $chart->renderer = $mockedRenderer;
         $chart->render( 400, 200 );
     }

     public function testInvalidValues()
     {
         try
         {
             $chart = new ezcGraphPieChart();
             $chart->data['Skien'] = new ezcGraphArrayDataSet( array( 3, -1, 2 ) );
             $chart->render( 500, 200 );
         }
         catch ( ezcGraphInvalidDataException $e )
         {
             return true;
         }

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

     public function testInvalidValueSum()
     {
         try
         {
             $chart = new ezcGraphPieChart();
             $chart->data['Skien'] = new ezcGraphArrayDataSet( array( 0, 0 ) );
             $chart->render( 500, 200 );
         }
         catch ( ezcGraphInvalidDataException $e )
         {
             return true;
         }

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

     public function testEmptyDataSet()
     {
         try
         {
             $chart = new ezcGraphPieChart();
             $chart->data['Skien'] = new ezcGraphArrayDataSet( array() );
             $chart->render( 500, 200 );
         }
         catch ( ezcGraphInvalidDataException $e )
         {
             return true;
         }

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

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

         $chart = new ezcGraphPieChart();
         $chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10, 'Dutch' => 3, 'German' => 2, 'French' => 2, 'Hindi' => 1, 'Taiwanese' => 1, 'Brazilian' => 1, 'Venezuelan' => 1, 'Japanese' => 1, 'Czech' => 1, 'Hungarian' => 1, 'Romanian' => 1 ) );
         $chart->data['Skien']->highlight['Norwegian'] = true;

         $chart->renderer->options->pieVerticalSize = .2;
         $chart->renderer->options->pieHorizontalSize = .2;

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

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

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

         $chart = new ezcGraphPieChart();
         $chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10, 'Dutch' => 3, 'German' => 2, 'French' => 2, 'Hindi' => 1, 'Taiwanese' => 1, 'Brazilian' => 1, 'Venezuelan' => 1, 'Japanese' => 1, 'Czech' => 1, 'Hungarian' => 1, 'Romanian' => 1 ) );

         ob_start();
         // Suppress header already sent warning
         @$chart->renderToOutput( 500, 200 );
         file_put_contents( $filename, ob_get_clean() );

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

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

         $chart = new ezcGraphPieChart();
         $chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10, 'Dutch' => 3, 'German' => 2, 'French' => 2, 'Hindi' => 1, 'Taiwanese' => 0, 'Brazilian' => 1, 'Venezuelan' => 0, 'Japanese' => 1, 'Czech' => 0, 'Hungarian' => 1, 'Romanian' => 1 ) );
         $chart->data['Skien']->highlight['Norwegian'] = true;

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

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

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

         $chart = new ezcGraphPieChart();
         $chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10, 'Dutch' => 3, 'German' => 2, 'French' => 2, 'Hindi' => 1, 'Taiwanese' => 1, 'Brazilian' => 1, 'Venezuelan' => 1, 'Japanese' => 1, 'Czech' => 1, 'Hungarian' => 1, 'Romanian' => 1 ) );

         $chart->data['Skien']->highlight['Norwegian'] = true;

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

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

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

         $chart = new ezcGraphPieChart();
         $chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10, 'Dutch' => 3, 'German' => 2, 'French' => 2, 'Hindi' => 1, 'Taiwanese' => 1, 'Brazilian' => 1, 'Venezuelan' => 1, 'Japanese' => 1, 'Czech' => 1, 'Hungarian' => 1, 'Romanian' => 1 ) );

         $chart->data['Skien']->highlight['Norwegian'] = true;

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

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

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

         $chart = new ezcGraphPieChart();
         $chart->options->sum = 30;
         $chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10, 'Dutch' => 3, 'German' => 2, 'French' => 2, 'Hindi' => 1, 'Taiwanese' => 1, 'Brazilian' => 1, 'Venezuelan' => 1, 'Japanese' => 1, 'Czech' => 1, 'Hungarian' => 1, 'Romanian' => 1 ) );

         $chart->render( 500, 300, $filename );

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

         try
         {
             $chart->options->sum = false;
         }
         catch ( ezcBaseValueException $e )
         {
             return true;
         }

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

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

         $chart = new ezcGraphPieChart();
         $chart->options->absoluteThreshold = 1;
         $chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10, 'Dutch' => 3, 'German' => 2, 'French' => 2, 'Hindi' => 1, 'Taiwanese' => 1, 'Brazilian' => 1, 'Venezuelan' => 1, 'Japanese' => 1, 'Czech' => 1, 'Hungarian' => 1, 'Romanian' => 1 ) );

         $chart->render( 500, 300, $filename );

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

         try
         {
             $chart->options->absoluteThreshold = false;
         }
         catch ( ezcBaseValueException $e )
         {
             return true;
         }

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

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

         $chart = new ezcGraphPieChart();
         $chart->options->percentThreshold = .05;
         $chart->options->summarizeCaption = 'Others';
         $chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10, 'Dutch' => 3, 'German' => 2, 'French' => 2, 'Hindi' => 1, 'Taiwanese' => 1, 'Brazilian' => 1, 'Venezuelan' => 1, 'Japanese' => 1, 'Czech' => 1, 'Hungarian' => 1, 'Romanian' => 1 ) );

         $chart->render( 500, 300, $filename );

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

         try
         {
             $chart->options->percentThreshold = false;
         }
         catch ( ezcBaseValueException $e )
         {
             return true;
         }

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

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

         $chart = new ezcGraphPieChart();
         $chart->options->absoluteThreshold = 1;
         $chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10, 'Dutch' => 3, 'German' => 2, 'French' => 2, 'Hindi' => 1 ) );

         $chart->render( 500, 300, $filename );

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

         try
         {
             $chart->options->absoluteThreshold = false;
         }
         catch ( ezcBaseValueException $e )
         {
             return true;
         }

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

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

         $chart = new ezcGraphPieChart();
         $chart->options->percentThreshold = .06;
         $chart->options->summarizeCaption = 'Others';
         $chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10, 'Dutch' => 3, 'German' => 2, 'French' => 2, 'Hindi' => 1 ) );

         $chart->render( 500, 300, $filename );

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

         try
         {
             $chart->options->percentThreshold = false;
         }
         catch ( ezcBaseValueException $e )
         {
             return true;
         }

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

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

         $chart = new ezcGraphPieChart();
         $chart->options->sum = 30;
         $chart->options->percentThreshold = .05;
         $chart->options->summarizeCaption = 'Others';
         $chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10, 'Dutch' => 3, 'German' => 2, 'French' => 2, 'Hindi' => 1, 'Taiwanese' => 1, 'Brazilian' => 1, 'Venezuelan' => 1, 'Japanese' => 1, 'Czech' => 1, 'Hungarian' => 1, 'Romanian' => 1 ) );

         $chart->render( 500, 300, $filename );

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

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

         $chart = new ezcGraphPieChart();
         $chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10 ) );

         $chart->render( 500, 300, $filename );

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

     public function testRender3dPieChartWithOneDataPoint()
     {
         $filename = $this->tempDir . __FUNCTION__ . '.svg';

         $chart = new ezcGraphPieChart();
         $chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10 ) );

         $chart->renderer = new ezcGraphRenderer3d();
         $chart->renderer->options->dataBorder = false;
         $chart->render( 500, 300, $filename );

         $this->compare(
             $filename,
             $this->basePath . 'compare/' . __CLASS__ . '_' . __FUNCTION__ . '.svg'
         );
     }
 }
 ?>
	<?php
	/**
	* ezcGraphPieChartTest
	*
	* 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 ezcGraphPieChartTest extends ezcGraphTestCase
	{
	protected $basePath;

	protected $tempDir;

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

	protected function setUp()
	{
	static $i = 0;
	if ( version_compare( phpversion(), '5.1.3', '<' ) )
	{
	$this->markTestSkipped( "These tests required atleast PHP 5.1.3" );
	}
	$this->tempDir = $this->createTempDir( __CLASS__ . sprintf( '_%03d_', ++$i ) ) . '/';
	$this->basePath = dirname( __FILE__ ) . '/data/';
	}

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

	public function testPieChartOptionsPropertyLabel()
	{
	$options = new ezcGraphPieChartOptions();

	$this->assertSame(
	'%1$s: %2$d (%3$.1f%%)',
	$options->label,
	'Wrong default value for property label in class ezcGraphPieChartOptions'
	);

	$options->label = '%1$s';
	$this->assertSame(
	'%1$s',
	$options->label,
	'Setting property value did not work for property label in class ezcGraphPieChartOptions'
	);
	}

	public function testPieChartOptionsPropertyLabelCallback()
	{
	$options = new ezcGraphPieChartOptions();

	$this->assertSame(
	null,
	$options->labelCallback,
	'Wrong default value for property labelCallback in class ezcGraphPieChartOptions'
	);

	$options->labelCallback = 'printf';
	$this->assertSame(
	'printf',
	$options->labelCallback,
	'Setting property value did not work for property labelCallback in class ezcGraphPieChartOptions'
	);

	$options->labelCallback = array( $this, __METHOD__ );
	$this->assertSame(
	array( $this, __METHOD__ ),
	$options->labelCallback,
	'Setting property value did not work for property labelCallback in class ezcGraphPieChartOptions'
	);

	try
	{
	$options->labelCallback = 'undefined_function';
	}
	catch ( ezcBasevalueException $e )
	{
	return true;
	}

	$this->fail( 'ezcBasevalueException expected.' );
	}

	public function testPieChartOptionsPropertySum()
	{
	$options = new ezcGraphPieChartOptions();

	$this->assertSame(
	false,
	$options->sum,
	'Wrong default value for property sum in class ezcGraphPieChartOptions'
	);

	$options->sum = 100;
	$this->assertSame(
	100.,
	$options->sum,
	'Setting property value did not work for property sum in class ezcGraphPieChartOptions'
	);
	}

	public function testPieChartOptionsPropertyPercentThreshold()
	{
	$options = new ezcGraphPieChartOptions();

	$this->assertSame(
	0.,
	$options->percentThreshold,
	'Wrong default value for property percentThreshold in class ezcGraphPieChartOptions'
	);

	$options->percentThreshold = .5;
	$this->assertSame(
	.5,
	$options->percentThreshold,
	'Setting property value did not work for property percentThreshold in class ezcGraphPieChartOptions'
	);
	}

	public function testPieChartOptionsPropertyAbsoluteThreshold()
	{
	$options = new ezcGraphPieChartOptions();

	$this->assertSame(
	0.,
	$options->absoluteThreshold,
	'Wrong default value for property absoluteThreshold in class ezcGraphPieChartOptions'
	);

	$options->absoluteThreshold = 5;
	$this->assertSame(
	5.,
	$options->absoluteThreshold,
	'Setting property value did not work for property absoluteThreshold in class ezcGraphPieChartOptions'
	);
	}

	public function testPieChartOptionsPropertySummarizeCaption()
	{
	$options = new ezcGraphPieChartOptions();

	$this->assertSame(
	'Misc',
	$options->summarizeCaption,
	'Wrong default value for property summarizeCaption in class ezcGraphPieChartOptions'
	);

	$options->summarizeCaption = 'Others';
	$this->assertSame(
	'Others',
	$options->summarizeCaption,
	'Setting property value did not work for property summarizeCaption in class ezcGraphPieChartOptions'
	);
	}

	public function testElementGenerationLegend()
	{
	$chart = new ezcGraphPieChart();
	$chart->data['sampleData'] = new ezcGraphArrayDataSet( array( 'sample 1' => 234, 'sample 2' => 21, 'sample 3' => 324, 'sample 4' => 120, 'sample 5' => 1 ) );
	$chart->render( 500, 200 );

	$legend = $this->readAttribute( $chart->legend, 'labels' );

	$this->assertEquals(
	5,
	count( $legend ),
	'Count of legends items should be <5>'
	);

	$this->assertEquals(
	'sample 1',
	$legend[0]['label'],
	'Label of first legend item should be <sample 1>.'
	);

	$this->assertEquals(
	ezcGraphColor::fromHex( '#4E9A06' ),
	$legend[1]['color'],
	'Default color for single label is wrong.'
	);

	$this->assertEquals(
	ezcGraphColor::fromHex( '#CC0000' ),
	$legend[2]['color'],
	'Special color for single label is wrong.'
	);
	}

	public function testInvalidDisplayType()
	{
	$chart = new ezcGraphPieChart();
	$chart->data['sampleData'] = new ezcGraphArrayDataSet( array( 'sample 1' => 234, 'sample 2' => 21, 'sample 3' => 324, 'sample 4' => 120, 'sample 5' => 1 ) );
	$chart->data['sampleData']->displayType = ezcGraph::LINE;

	try
	{
	$chart->render( 500, 200 );
	}
	catch ( ezcGraphInvalidDisplayTypeException $e )
	{
	return true;
	}

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

	public function testPieRenderPieSegments()
	{
	$chart = new ezcGraphPieChart();
	$chart->data['sample'] = new ezcGraphArrayDataSet( array(
	'Mozilla' => 4375,
	'IE' => 345,
	'Opera' => 1204,
	'wget' => 231,
	'Safari' => 987,
	) );

	$chart->data['sample']->highlight['wget'] = true;

	$mockedRenderer = $this->getMock( 'ezcGraphRenderer2d', array(
	'drawPieSegment',
	) );

	$mockedRenderer
	->expects( $this->at( 0 ) )
	->method( 'drawPieSegment' )
	->with(
	$this->equalTo( new ezcGraphBoundings( 80, 0, 400, 200 ) ),
	$this->equalTo( new ezcGraphContext( 'sample', 'Mozilla' ) ),
	$this->equalTo( ezcGraphColor::fromHex( '#3465A4' ) ),
	$this->equalTo( 0., 1. ),
	$this->equalTo( 220.5, .1 ),
	$this->equalTo( 'Mozilla: 4375 (61.3%)' ),
	$this->equalTo( false )
	);
	$mockedRenderer
	->expects( $this->at( 1 ) )
	->method( 'drawPieSegment' )
	->with(
	$this->equalTo( new ezcGraphBoundings( 80, 0, 400, 200 ) ),
	$this->equalTo( new ezcGraphContext( 'sample', 'IE' ) ),
	$this->equalTo( ezcGraphColor::fromHex( '#4E9A06' ) ),
	$this->equalTo( 220.5, .1 ),
	$this->equalTo( 238., 1. ),
	$this->equalTo( 'IE: 345 (4.8%)' ),
	$this->equalTo( false )
	);
	$mockedRenderer
	->expects( $this->at( 2 ) )
	->method( 'drawPieSegment' )
	->with(
	$this->equalTo( new ezcGraphBoundings( 80, 0, 400, 200 ) ),
	$this->equalTo( new ezcGraphContext( 'sample', 'Opera' ) ),
	$this->equalTo( ezcGraphColor::fromHex( '#CC0000' ) ),
	$this->equalTo( 238., 1. ),
	$this->equalTo( 298.6, 1. ),
	$this->equalTo( 'Opera: 1204 (16.9%)' ),
	$this->equalTo( false )
	);
	$mockedRenderer
	->expects( $this->at( 3 ) )
	->method( 'drawPieSegment' )
	->with(
	$this->equalTo( new ezcGraphBoundings( 80, 0, 400, 200 ) ),
	$this->equalTo( new ezcGraphContext( 'sample', 'wget' ) ),
	$this->equalTo( ezcGraphColor::fromHex( '#EDD400' ) ),
	$this->equalTo( 298.6, 1. ),
	$this->equalTo( 310., 1. ),
	$this->equalTo( 'wget: 231 (3.2%)' ),
	$this->equalTo( true )
	);
	$mockedRenderer
	->expects( $this->at( 4 ) )
	->method( 'drawPieSegment' )
	->with(
	$this->equalTo( new ezcGraphBoundings( 80, 0, 400, 200 ) ),
	$this->equalTo( new ezcGraphContext( 'sample', 'Safari' ) ),
	$this->equalTo( ezcGraphColor::fromHex( '#75505B' ) ),
	$this->equalTo( 310., 1. ),
	$this->equalTo( 360., 1. ),
	$this->equalTo( 'Safari: 987 (13.8%)' ),
	$this->equalTo( false )
	);

	$chart->renderer = $mockedRenderer;
	$chart->render( 400, 200 );
	}

	public function testPieRenderPieSegmentsWithLabelCallback()
	{
	$chart = new ezcGraphPieChart();
	$chart->data['sample'] = new ezcGraphArrayDataSet( array(
	'Mozilla' => 4375,
	'IE' => 345,
	'Opera' => 1204,
	'wget' => 231,
	'Safari' => 987,
	) );

	$chart->data['sample']->highlight['wget'] = true;

	$chart->options->labelCallback =
	create_function(
	'$label, $value, $percent',
	"return 'Callback: ' . \$label;"
	);

	$mockedRenderer = $this->getMock( 'ezcGraphRenderer2d', array(
	'drawPieSegment',
	) );

	$mockedRenderer
	->expects( $this->at( 0 ) )
	->method( 'drawPieSegment' )
	->with(
	$this->equalTo( new ezcGraphBoundings( 80, 0, 400, 200 ) ),
	$this->equalTo( new ezcGraphContext( 'sample', 'Mozilla' ) ),
	$this->equalTo( ezcGraphColor::fromHex( '#3465A4' ) ),
	$this->equalTo( 0., 1. ),
	$this->equalTo( 220.5, .1 ),
	$this->equalTo( 'Callback: Mozilla' ),
	$this->equalTo( false )
	);
	$mockedRenderer
	->expects( $this->at( 1 ) )
	->method( 'drawPieSegment' )
	->with(
	$this->equalTo( new ezcGraphBoundings( 80, 0, 400, 200 ) ),
	$this->equalTo( new ezcGraphContext( 'sample', 'IE' ) ),
	$this->equalTo( ezcGraphColor::fromHex( '#4E9A06' ) ),
	$this->equalTo( 220.5, .1 ),
	$this->equalTo( 238., 1. ),
	$this->equalTo( 'Callback: IE' ),
	$this->equalTo( false )
	);
	$mockedRenderer
	->expects( $this->at( 2 ) )
	->method( 'drawPieSegment' )
	->with(
	$this->equalTo( new ezcGraphBoundings( 80, 0, 400, 200 ) ),
	$this->equalTo( new ezcGraphContext( 'sample', 'Opera' ) ),
	$this->equalTo( ezcGraphColor::fromHex( '#CC0000' ) ),
	$this->equalTo( 238., 1. ),
	$this->equalTo( 298.6, 1. ),
	$this->equalTo( 'Callback: Opera' ),
	$this->equalTo( false )
	);
	$mockedRenderer
	->expects( $this->at( 3 ) )
	->method( 'drawPieSegment' )
	->with(
	$this->equalTo( new ezcGraphBoundings( 80, 0, 400, 200 ) ),
	$this->equalTo( new ezcGraphContext( 'sample', 'wget' ) ),
	$this->equalTo( ezcGraphColor::fromHex( '#EDD400' ) ),
	$this->equalTo( 298.6, 1. ),
	$this->equalTo( 310., 1. ),
	$this->equalTo( 'Callback: wget' ),
	$this->equalTo( true )
	);
	$mockedRenderer
	->expects( $this->at( 4 ) )
	->method( 'drawPieSegment' )
	->with(
	$this->equalTo( new ezcGraphBoundings( 80, 0, 400, 200 ) ),
	$this->equalTo( new ezcGraphContext( 'sample', 'Safari' ) ),
	$this->equalTo( ezcGraphColor::fromHex( '#75505B' ) ),
	$this->equalTo( 310., 1. ),
	$this->equalTo( 360., 1. ),
	$this->equalTo( 'Callback: Safari' ),
	$this->equalTo( false )
	);

	$chart->renderer = $mockedRenderer;
	$chart->render( 400, 200 );
	}

	public function testInvalidValues()
	{
	try
	{
	$chart = new ezcGraphPieChart();
	$chart->data['Skien'] = new ezcGraphArrayDataSet( array( 3, -1, 2 ) );
	$chart->render( 500, 200 );
	}
	catch ( ezcGraphInvalidDataException $e )
	{
	return true;
	}

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

	public function testInvalidValueSum()
	{
	try
	{
	$chart = new ezcGraphPieChart();
	$chart->data['Skien'] = new ezcGraphArrayDataSet( array( 0, 0 ) );
	$chart->render( 500, 200 );
	}
	catch ( ezcGraphInvalidDataException $e )
	{
	return true;
	}

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

	public function testEmptyDataSet()
	{
	try
	{
	$chart = new ezcGraphPieChart();
	$chart->data['Skien'] = new ezcGraphArrayDataSet( array() );
	$chart->render( 500, 200 );
	}
	catch ( ezcGraphInvalidDataException $e )
	{
	return true;
	}

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

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

	$chart = new ezcGraphPieChart();
	$chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10, 'Dutch' => 3, 'German' => 2, 'French' => 2, 'Hindi' => 1, 'Taiwanese' => 1, 'Brazilian' => 1, 'Venezuelan' => 1, 'Japanese' => 1, 'Czech' => 1, 'Hungarian' => 1, 'Romanian' => 1 ) );
	$chart->data['Skien']->highlight['Norwegian'] = true;

	$chart->renderer->options->pieVerticalSize = .2;
	$chart->renderer->options->pieHorizontalSize = .2;

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

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

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

	$chart = new ezcGraphPieChart();
	$chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10, 'Dutch' => 3, 'German' => 2, 'French' => 2, 'Hindi' => 1, 'Taiwanese' => 1, 'Brazilian' => 1, 'Venezuelan' => 1, 'Japanese' => 1, 'Czech' => 1, 'Hungarian' => 1, 'Romanian' => 1 ) );

	ob_start();
	// Suppress header already sent warning
	@$chart->renderToOutput( 500, 200 );
	file_put_contents( $filename, ob_get_clean() );

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

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

	$chart = new ezcGraphPieChart();
	$chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10, 'Dutch' => 3, 'German' => 2, 'French' => 2, 'Hindi' => 1, 'Taiwanese' => 0, 'Brazilian' => 1, 'Venezuelan' => 0, 'Japanese' => 1, 'Czech' => 0, 'Hungarian' => 1, 'Romanian' => 1 ) );
	$chart->data['Skien']->highlight['Norwegian'] = true;

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

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

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

	$chart = new ezcGraphPieChart();
	$chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10, 'Dutch' => 3, 'German' => 2, 'French' => 2, 'Hindi' => 1, 'Taiwanese' => 1, 'Brazilian' => 1, 'Venezuelan' => 1, 'Japanese' => 1, 'Czech' => 1, 'Hungarian' => 1, 'Romanian' => 1 ) );

	$chart->data['Skien']->highlight['Norwegian'] = true;

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

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

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

	$chart = new ezcGraphPieChart();
	$chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10, 'Dutch' => 3, 'German' => 2, 'French' => 2, 'Hindi' => 1, 'Taiwanese' => 1, 'Brazilian' => 1, 'Venezuelan' => 1, 'Japanese' => 1, 'Czech' => 1, 'Hungarian' => 1, 'Romanian' => 1 ) );

	$chart->data['Skien']->highlight['Norwegian'] = true;

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

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

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

	$chart = new ezcGraphPieChart();
	$chart->options->sum = 30;
	$chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10, 'Dutch' => 3, 'German' => 2, 'French' => 2, 'Hindi' => 1, 'Taiwanese' => 1, 'Brazilian' => 1, 'Venezuelan' => 1, 'Japanese' => 1, 'Czech' => 1, 'Hungarian' => 1, 'Romanian' => 1 ) );

	$chart->render( 500, 300, $filename );

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

	try
	{
	$chart->options->sum = false;
	}
	catch ( ezcBaseValueException $e )
	{
	return true;
	}

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

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

	$chart = new ezcGraphPieChart();
	$chart->options->absoluteThreshold = 1;
	$chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10, 'Dutch' => 3, 'German' => 2, 'French' => 2, 'Hindi' => 1, 'Taiwanese' => 1, 'Brazilian' => 1, 'Venezuelan' => 1, 'Japanese' => 1, 'Czech' => 1, 'Hungarian' => 1, 'Romanian' => 1 ) );

	$chart->render( 500, 300, $filename );

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

	try
	{
	$chart->options->absoluteThreshold = false;
	}
	catch ( ezcBaseValueException $e )
	{
	return true;
	}

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

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

	$chart = new ezcGraphPieChart();
	$chart->options->percentThreshold = .05;
	$chart->options->summarizeCaption = 'Others';
	$chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10, 'Dutch' => 3, 'German' => 2, 'French' => 2, 'Hindi' => 1, 'Taiwanese' => 1, 'Brazilian' => 1, 'Venezuelan' => 1, 'Japanese' => 1, 'Czech' => 1, 'Hungarian' => 1, 'Romanian' => 1 ) );

	$chart->render( 500, 300, $filename );

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

	try
	{
	$chart->options->percentThreshold = false;
	}
	catch ( ezcBaseValueException $e )
	{
	return true;
	}

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

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

	$chart = new ezcGraphPieChart();
	$chart->options->absoluteThreshold = 1;
	$chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10, 'Dutch' => 3, 'German' => 2, 'French' => 2, 'Hindi' => 1 ) );

	$chart->render( 500, 300, $filename );

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

	try
	{
	$chart->options->absoluteThreshold = false;
	}
	catch ( ezcBaseValueException $e )
	{
	return true;
	}

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

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

	$chart = new ezcGraphPieChart();
	$chart->options->percentThreshold = .06;
	$chart->options->summarizeCaption = 'Others';
	$chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10, 'Dutch' => 3, 'German' => 2, 'French' => 2, 'Hindi' => 1 ) );

	$chart->render( 500, 300, $filename );

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

	try
	{
	$chart->options->percentThreshold = false;
	}
	catch ( ezcBaseValueException $e )
	{
	return true;
	}

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

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

	$chart = new ezcGraphPieChart();
	$chart->options->sum = 30;
	$chart->options->percentThreshold = .05;
	$chart->options->summarizeCaption = 'Others';
	$chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10, 'Dutch' => 3, 'German' => 2, 'French' => 2, 'Hindi' => 1, 'Taiwanese' => 1, 'Brazilian' => 1, 'Venezuelan' => 1, 'Japanese' => 1, 'Czech' => 1, 'Hungarian' => 1, 'Romanian' => 1 ) );

	$chart->render( 500, 300, $filename );

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

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

	$chart = new ezcGraphPieChart();
	$chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10 ) );

	$chart->render( 500, 300, $filename );

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

	public function testRender3dPieChartWithOneDataPoint()
	{
	$filename = $this->tempDir . __FUNCTION__ . '.svg';

	$chart = new ezcGraphPieChart();
	$chart->data['Skien'] = new ezcGraphArrayDataSet( array( 'Norwegian' => 10 ) );

	$chart->renderer = new ezcGraphRenderer3d();
	$chart->renderer->options->dataBorder = false;
	$chart->render( 500, 300, $filename );

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