public function testCompany()
{
$expected = 'aAbBcDeE';
$oPhpPresentation = new PhpPresentation();
$oPhpPresentation->getDocumentProperties()->setCompany($expected);
$oXMLDoc = TestHelperDOCX::getDocument($oPhpPresentation, 'PowerPoint2007');
$this->assertTrue($oXMLDoc->fileExists('docProps/app.xml'));
$this->assertTrue($oXMLDoc->elementExists('/Properties/Company', 'docProps/app.xml'));
$this->assertEquals($expected, $oXMLDoc->getElement('/Properties/Company', 'docProps/app.xml')->nodeValue);
}