public function HtmlTest::testSerialize in Drupal 9

Same name and namespace in other branches

1. 8 core/tests/Drupal/Tests/Component/Utility/HtmlTest.php \Drupal\Tests\Component\Utility\HtmlTest::testSerialize()

Tests Html::serialize().

Resolves an issue by where an empty DOMDocument object sent to serialization would cause errors in getElementsByTagName() in the serialization function.

@covers ::serialize

File

core/tests/Drupal/Tests/Component/Utility/HtmlTest.php, line 331

Class

HtmlTest

Tests \Drupal\Component\Utility\Html.

Namespace

Drupal\Tests\Component\Utility

Code

public function testSerialize() {
  $document = new \DOMDocument();
  $result = Html::serialize($document);
  $this
    ->assertSame('', $result);
}