public function ElementTest::testInvalidChildren in Drupal 9

Same name and namespace in other branches

1. 8 core/tests/Drupal/Tests/Core/Render/ElementTest.php \Drupal\Tests\Core\Render\ElementTest::testInvalidChildren()

Tests the children() method with an invalid key.

File

core/tests/Drupal/Tests/Core/Render/ElementTest.php, line 105

Class

ElementTest

@coversDefaultClass \Drupal\Core\Render\Element @group Render

Namespace

Drupal\Tests\Core\Render

Code

public function testInvalidChildren() {
  $element = [
    'foo' => 'bar',
  ];
  $this
    ->expectError();
  $this
    ->expectErrorMessage('"foo" is an invalid render array key');
  Element::children($element);
}