DbLogTest.php in Drupal 9

Namespace

Drupal\Tests\dblog\Kernel

File

core/modules/dblog/tests/src/Kernel/DbLogTest.php

<?php

namespace Drupal\Tests\dblog\Kernel;

use Drupal\Component\Render\FormattableMarkup;
use Drupal\Core\Database\Database;
use Drupal\KernelTests\KernelTestBase;
use Drupal\Tests\dblog\Functional\FakeLogEntries;

/**
 * Generate events and verify dblog entries.
 *
 * @group dblog
 */
class DbLogTest extends KernelTestBase {
  use FakeLogEntries;

  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'dblog',
    'system',
  ];

  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this
      ->installSchema('dblog', [
      'watchdog',
    ]);
    $this
      ->installSchema('system', [
      'sequences',
    ]);
    $this
      ->installConfig([
      'system',
    ]);
  }

  /**
   * Tests that cron correctly applies the database log row limit.
   */
  public function testDbLogCron() {
    $row_limit = 100;

    // Generate additional log entries.
    $this
      ->generateLogEntries($row_limit + 10);

    // Verify that the database log row count exceeds the row limit.
    $count = Database::getConnection()
      ->select('watchdog')
      ->countQuery()
      ->execute()
      ->fetchField();
    $this
      ->assertGreaterThan($row_limit, $count, new FormattableMarkup('Dblog row count of @count exceeds row limit of @limit', [
      '@count' => $count,
      '@limit' => $row_limit,
    ]));

    // Get the number of enabled modules. Cron adds a log entry for each module.
    $list = $this->container
      ->get('module_handler')
      ->getImplementations('cron');
    $module_count = count($list);
    $cron_detailed_count = $this
      ->runCron();
    $this
      ->assertEquals($module_count + 2, $cron_detailed_count, new FormattableMarkup('Cron added @count of @expected new log entries', [
      '@count' => $cron_detailed_count,
      '@expected' => $module_count + 2,
    ]));

    // Test disabling of detailed cron logging.
    $this
      ->config('system.cron')
      ->set('logging', 0)
      ->save();
    $cron_count = $this
      ->runCron();
    $this
      ->assertEquals(1, $cron_count, new FormattableMarkup('Cron added @count of @expected new log entries', [
      '@count' => $cron_count,
      '@expected' => 1,
    ]));
  }

  /**
   * Runs cron and returns number of new log entries.
   *
   * @return int
   *   Number of new watchdog entries.
   */
  private function runCron() {
    $connection = Database::getConnection();

    // Get last ID to compare against; log entries get deleted, so we can't
    // reliably add the number of newly created log entries to the current count
    // to measure number of log entries created by cron.
    $query = $connection
      ->select('watchdog');
    $query
      ->addExpression('MAX([wid])');
    $last_id = $query
      ->execute()
      ->fetchField();

    // Run a cron job.
    $this->container
      ->get('cron')
      ->run();

    // Get last ID after cron was run.
    $query = $connection
      ->select('watchdog');
    $query
      ->addExpression('MAX([wid])');
    $current_id = $query
      ->execute()
      ->fetchField();
    return $current_id - $last_id;
  }

}

Classes

Name	Description
DbLogTest	Generate events and verify dblog entries.