PopTest\Dom\DomTest::testSetAndGetDoctype PHP Метод

    public function testSetAndGetDoctype()
    {
        $d = new Dom(Dom::XHTML11);
        $d->setDoctype(Dom::ATOM);
        $this->assertContains('<?xml version="1.0"', $d->getDoctype());
        $d->setDoctype(Dom::RSS);
        $this->assertContains('<?xml version="1.0"', $d->getDoctype());
        $d->setDoctype(Dom::XML);
        $this->assertContains('<?xml version="1.0"', $d->getDoctype());
    }