PhpOffice\PhpPresentation\Tests\Writer\PowerPoint2007Test::testFeatureThumbnail PHP Method

    public function testFeatureThumbnail()
    {
        $imagePath = PHPPRESENTATION_TESTS_BASE_DIR . DIRECTORY_SEPARATOR . 'resources' . DIRECTORY_SEPARATOR . 'images' . DIRECTORY_SEPARATOR . 'PhpPresentationLogo.png';
        $xPathManifest = '/Relationships/Relationship[@Target=\'docProps/thumbnail.jpeg\'][@Type=\'http://schemas.openxmlformats.org/package/2006/relationships/metadata/thumbnail\']';
        $oPhpPresentation = new PhpPresentation();
        $oXMLDoc = TestHelperDOCX::getDocument($oPhpPresentation, 'PowerPoint2007');
        $this->assertTrue($oXMLDoc->fileExists('_rels/.rels'));
        $this->assertFalse($oXMLDoc->elementExists($xPathManifest, '_rels/.rels'));
        $oPhpPresentation->getPresentationProperties()->setThumbnailPath($imagePath);
        $oXMLDoc = TestHelperDOCX::getDocument($oPhpPresentation, 'PowerPoint2007');
        $this->assertTrue($oXMLDoc->fileExists('_rels/.rels'));
        $this->assertTrue($oXMLDoc->elementExists($xPathManifest, '_rels/.rels'));
    }