Issue #3358819 by drunken monkey: Fixed tests against Drupal 10.1.

Search API 1.x, dev (xxxx-xx-xx):

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- #3358819 by drunken monkey: Fixed tests against Drupal 10.1.

- #3356817 by Eduardo Morales Alberti, drunken monkey: Adapted phrasing of

  warning in SearchApiFulltext to that of Core.

- #3358661 by drunken monkey, tobiasb: Fixed coding standards.

      // Test that the value is properly wrapped in a

      // \Drupal\search_api\Plugin\search_api\data_type\value\TextValueInterface

      // object, which contains a string (not, for example, some markup object).

      $this->assertInstanceOf('Drupal\search_api\Plugin\search_api\data_type\value\TextValueInterface', $values[0], "$type item $entity_id rendered value is properly wrapped in a text value object.");

      $this->assertInstanceOf(TextValueInterface::class, $values[0], "$type item $entity_id rendered value is properly wrapped in a text value object.");

      $field_value = $values[0]->getText();

      $this->assertIsString($field_value, "$type item $entity_id rendered value is a string.");

      $this->assertEquals(1, count($values), "$type item $entity_id rendered value is a single value.");

    // when the processor was broken, because the schema metadata was also

    // adding it to the output.

    $nid = $node->id();

    $this->assertStringContainsString('<article role="article">', $field_value, 'Node item ' . $nid . ' not rendered in theme Stable.');

    // The role="article" ARIA attribute was removed in Drupal 10.1. To be able

    // to run this test both against earlier and later versions of Drupal Core,

    // we need to use a regular expression.

    // @todo Change to check only for "<article>" once we depend on Drupal 10.1.

    $this->assertMatchesRegularExpression('#<article(?: role="article")?>#', $field_value, 'Node item ' . $nid . ' not rendered in theme Stable.');

    if ($node->bundle() === 'page') {

      $this->assertStringNotContainsString('>Read more<', $field_value, 'Node item ' . $nid . " rendered in view-mode \"full\".");

      $this->assertStringContainsString('>' . $node->get('body')->getValue()[0]['value'] . '<', $field_value, 'Node item ' . $nid . ' does not have rendered body inside HTML-Tags.');