public function testTypeBarGroupingPercentStacked()
{
$oBar = new Bar();
$oBar->addSeries(new Series('Series', array('Jan' => 1, 'Feb' => 5, 'Mar' => 2)));
$oBar->setBarGrouping(Bar::GROUPING_PERCENTSTACKED);
$phpPresentation = new PhpPresentation();
$oSlide = $phpPresentation->getActiveSlide();
$oChart = $oSlide->createChartShape();
$oChart->getPlotArea()->setType($oBar);
$pres = TestHelperDOCX::getDocument($phpPresentation, 'ODPresentation');
$element = '/office:document-content/office:automatic-styles/style:style[@style:name=\'stylePlotArea\']/style:chart-properties';
$this->assertTrue($pres->elementExists($element, 'Object 1/content.xml'));
$this->assertEquals('true', $pres->getElementAttribute($element, 'chart:stacked', 'Object 1/content.xml'));
$this->assertEquals('100', $pres->getElementAttribute($element, 'chart:overlap', 'Object 1/content.xml'));
$this->assertEquals('true', $pres->getElementAttribute($element, 'chart:percentage', 'Object 1/content.xml'));
$this->assertEquals('percentage', $pres->getElementAttribute($element, 'chart:data-label-number', 'Object 1/content.xml'));
}