public function AttributeTest::testMergeArgumentException in Drupal 9

Same name and namespace in other branches

1. 8 core/tests/Drupal/Tests/Core/Template/AttributeTest.php \Drupal\Tests\Core\Template\AttributeTest::testMergeArgumentException()

@covers ::merge

File

core/tests/Drupal/Tests/Core/Template/AttributeTest.php, line 510

Class

AttributeTest

@coversDefaultClass \Drupal\Core\Template\Attribute @group Template

Namespace

Drupal\Tests\Core\Template

Code

public function testMergeArgumentException() {
  $attributes = new Attribute([
    'class' => [
      'example-class',
    ],
  ]);
  $this
    ->expectException(\TypeError::class);
  $attributes
    ->merge('not an array');
}