PhpOffice\PhpPresentation\Tests\Writer\PowerPoint2007\SlideTest::testRichTextRunLanguage PHP Method

    public function testRichTextRunLanguage()
    {
        $oPhpPresentation = new PhpPresentation();
        $oSlide = $oPhpPresentation->getActiveSlide();
        $oRichText = $oSlide->createRichTextShape();
        $oRun = $oRichText->createTextRun('MyText');
        $pres = TestHelperDOCX::getDocument($oPhpPresentation, 'PowerPoint2007');
        $expectedElement = '/p:sld/p:cSld/p:spTree/p:sp/p:txBody/a:p/a:r/a:rPr';
        $this->assertTrue($pres->elementExists($expectedElement, 'ppt/slides/slide1.xml'));
        $this->assertTrue($pres->attributeElementExists($expectedElement, 'lang', 'ppt/slides/slide1.xml'));
        $this->assertEquals('en-US', $pres->getElementAttribute($expectedElement, 'lang', 'ppt/slides/slide1.xml'));
        $oRun->setLanguage('de_DE');
        $pres = TestHelperDOCX::getDocument($oPhpPresentation, 'PowerPoint2007');
        $expectedElement = '/p:sld/p:cSld/p:spTree/p:sp/p:txBody/a:p/a:r/a:rPr';
        $this->assertTrue($pres->elementExists($expectedElement, 'ppt/slides/slide1.xml'));
        $this->assertTrue($pres->attributeElementExists($expectedElement, 'lang', 'ppt/slides/slide1.xml'));
        $this->assertEquals('de_DE', $pres->getElementAttribute($expectedElement, 'lang', 'ppt/slides/slide1.xml'));
    }