public function testDocumentProperties()
{
$expected = 'aAbBcDeE';
$oPhpPresentation = new PhpPresentation();
$oPhpPresentation->getDocumentProperties()->setCreator($expected);
$oPhpPresentation->getDocumentProperties()->setTitle($expected);
$oPhpPresentation->getDocumentProperties()->setDescription($expected);
$oPhpPresentation->getDocumentProperties()->setSubject($expected);
$oPhpPresentation->getDocumentProperties()->setKeywords($expected);
$oPhpPresentation->getDocumentProperties()->setCategory($expected);
$oXMLDoc = TestHelperDOCX::getDocument($oPhpPresentation, 'PowerPoint2007');
$this->assertTrue($oXMLDoc->fileExists('docProps/core.xml'));
$this->assertTrue($oXMLDoc->elementExists('/cp:coreProperties/dc:creator', 'docProps/core.xml'));
$this->assertEquals($expected, $oXMLDoc->getElement('/cp:coreProperties/dc:creator', 'docProps/core.xml')->nodeValue);
$this->assertTrue($oXMLDoc->elementExists('/cp:coreProperties/dc:title', 'docProps/core.xml'));
$this->assertEquals($expected, $oXMLDoc->getElement('/cp:coreProperties/dc:title', 'docProps/core.xml')->nodeValue);
$this->assertTrue($oXMLDoc->elementExists('/cp:coreProperties/dc:description', 'docProps/core.xml'));
$this->assertEquals($expected, $oXMLDoc->getElement('/cp:coreProperties/dc:description', 'docProps/core.xml')->nodeValue);
$this->assertTrue($oXMLDoc->elementExists('/cp:coreProperties/dc:subject', 'docProps/core.xml'));
$this->assertEquals($expected, $oXMLDoc->getElement('/cp:coreProperties/dc:subject', 'docProps/core.xml')->nodeValue);
$this->assertTrue($oXMLDoc->elementExists('/cp:coreProperties/cp:keywords', 'docProps/core.xml'));
$this->assertEquals($expected, $oXMLDoc->getElement('/cp:coreProperties/cp:keywords', 'docProps/core.xml')->nodeValue);
$this->assertTrue($oXMLDoc->elementExists('/cp:coreProperties/cp:category', 'docProps/core.xml'));
$this->assertEquals($expected, $oXMLDoc->getElement('/cp:coreProperties/cp:category', 'docProps/core.xml')->nodeValue);
}