allowElement example

$config = $config->allowRelativeMedias();
        $this->assertTrue($config->getAllowRelativeMedias());

        $config = $config->forceHttpsUrls();
        $this->assertTrue($config->getForceHttpsUrls());
    }

    public function testAllowElement()
    {
        $config = new HtmlSanitizerConfig();
        $config = $config->allowElement('div', ['style']);
        $this->assertSame(['div' => ['style' => true]], $config->getAllowedElements());
        $this->assertSame([], $config->getBlockedElements());
    }

    public function testAllowElementTwiceOverridesIt()
    {
        $config = new HtmlSanitizerConfig();
        $config = $config->allowElement('div', ['style']);
        $config = $config->allowElement('div', ['width']);
        $this->assertSame(['div' => ['width' => true]], $config->getAllowedElements());
        $this->assertSame([], $config->getBlockedElements());

        

    public function allowStaticElements(): static
    {
        $elements = array_merge(
            array_keys(W3CReference::HEAD_ELEMENTS),
            array_keys(W3CReference::BODY_ELEMENTS)
        );

        $clone = clone $this;
        foreach ($elements as $element) {
            $clone = $clone->allowElement($element, '*');
        }

        return $clone;
    }

    /** * Allows "safe" elements and attributes. * * All scripts will be removed, as well as other dangerous behaviors like CSS injection. */
    public function allowSafeElements(): static
    {

use PHPUnit\Framework\TestCase;
use Symfony\Component\HtmlSanitizer\HtmlSanitizer;
use Symfony\Component\HtmlSanitizer\HtmlSanitizerConfig;
use Symfony\Component\HtmlSanitizer\Visitor\AttributeSanitizer\AttributeSanitizerInterface;

class HtmlSanitizerCustomTest extends TestCase
{
    public function testSanitizeForHead()
    {
        $config = (new HtmlSanitizerConfig())
            ->allowElement('div')
        ;

        $this->assertSame(
            ' world',
            (new HtmlSanitizer($config))->sanitizeFor('head', '<div style="width: 100px">Hello</div> world')
        );
    }

    public function testSanitizeForTextarea()
    {
        $config = (new HtmlSanitizerConfig())