ExpectDeprecationTest.php

<?php

declare (strict_types=1);
namespace Drupal\Tests;

use PHPUnit\Framework\TestCase;
use Symfony\Bridge\PhpUnit\ExpectDeprecationTrait;

/**
 * Ensures Drupal has test coverage of Symfony's deprecation testing.
 *
 * @group Test
 * @group legacy
 */
class ExpectDeprecationTest extends TestCase {
    use ExpectDeprecationTrait;
    
    /**
     * Tests expectDeprecation.
     */
    public function testExpectDeprecation() : void {
        $this->expectDeprecation('Test deprecation');
        // phpcs:ignore Drupal.Semantics.FunctionTriggerError
        @trigger_error('Test deprecation', E_USER_DEPRECATED);
    }
    
    /**
     * Tests expectDeprecation in isolated test.
     *
     * @runInSeparateProcess
     * @preserveGlobalState disabled
     */
    public function testExpectDeprecationInIsolation() : void {
        $this->expectDeprecation('Test isolated deprecation');
        // phpcs:ignore Drupal.Semantics.FunctionTriggerError
        @trigger_error('Test isolated deprecation', E_USER_DEPRECATED);
    }

}