class KernelTestBaseDatabaseDriverModuleTest

class KernelTestBaseDatabaseDriverModuleTest extends KernelTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected function getDatabaseConnectionInfo() {
        // If the test is run with argument SIMPLETEST_DB then use it.
        $db_url = getenv('SIMPLETEST_DB');
        if (empty($db_url)) {
            throw new \Exception('There is no database connection so no tests can be run. You must provide a SIMPLETEST_DB environment variable to run PHPUnit based functional tests outside of run-tests.sh. See https://www.drupal.org/node/2116263#skipped-tests for more information.');
        }
        else {
            $database = Database::convertDbUrlToConnectionInfo($db_url, $this->root);
            if (in_array($database['driver'], [
                'mysql',
                'pgsql',
            ])) {
                // Change the used database driver to the one provided by the module
                // "driver_test".
                $driver = 'Drivertest' . ucfirst($database['driver']);
                $database['driver'] = $driver;
                $database['namespace'] = 'Drupal\\driver_test\\Driver\\Database\\' . $driver;
                $database['autoload'] = "core/modules/system/tests/modules/driver_test/src/Driver/Database/{$driver}/";
            }
            Database::addConnectionInfo('default', 'default', $database);
        }
        // Clone the current connection and replace the current prefix.
        $connection_info = Database::getConnectionInfo('default');
        if (!empty($connection_info)) {
            Database::renameConnection('default', 'simpletest_original_default');
            foreach ($connection_info as $target => $value) {
                // Replace the full table prefix definition to ensure that no table
                // prefixes of the test runner leak into the test.
                $connection_info[$target]['prefix'] = [
                    'default' => $this->databasePrefix,
                ];
            }
        }
        return $connection_info;
    }
    
    /**
     * @covers ::bootEnvironment
     */
    public function testDatabaseDriverModuleEnabled() : void {
        $driver = Database::getConnection()->driver();
        if (!in_array($driver, [
            'DrivertestMysql',
            'DrivertestPgsql',
        ])) {
            $this->markTestSkipped("This test does not support the {$driver} database driver.");
        }
        // Test that the module that is providing the database driver is enabled.
        $this->assertSame(1, \Drupal::service('extension.list.module')->get('driver_test')->status);
    }

}