MigrateSqlSourceTestBase.php in Drupal 8

Namespace

Drupal\Tests\migrate\Kernel

File

core/modules/migrate/tests/src/Kernel/MigrateSqlSourceTestBase.php

<?php

namespace Drupal\Tests\migrate\Kernel;

use Drupal\Core\Database\Driver\sqlite\Connection;

/**
 * Base class for tests of Migrate source plugins that use a database.
 */
abstract class MigrateSqlSourceTestBase extends MigrateSourceTestBase {

  /**
   * Builds an in-memory SQLite database from a set of source data.
   *
   * @param array $source_data
   *   The source data, keyed by table name. Each table is an array containing
   *   the rows in that table.
   *
   * @return \Drupal\Core\Database\Driver\sqlite\Connection
   *   The SQLite database connection.
   */
  protected function getDatabase(array $source_data) {

    // Create an in-memory SQLite database. Plugins can interact with it like
    // any other database, and it will cease to exist when the connection is
    // closed.
    $connection_options = [
      'database' => ':memory:',
    ];
    $pdo = Connection::open($connection_options);
    $connection = new Connection($pdo, $connection_options);

    // Create the tables and fill them with data.
    foreach ($source_data as $table => $rows) {

      // Use the biggest row to build the table schema.
      $counts = array_map('count', $rows);
      asort($counts);
      end($counts);
      $pilot = $rows[key($counts)];
      $connection
        ->schema()
        ->createTable($table, [
        // SQLite uses loose affinity typing, so it's OK for every field to
        // be a text field.
        'fields' => array_map(function () {
          return [
            'type' => 'text',
          ];
        }, $pilot),
      ]);
      $fields = array_keys($pilot);
      $insert = $connection
        ->insert($table)
        ->fields($fields);
      array_walk($rows, [
        $insert,
        'values',
      ]);
      $insert
        ->execute();
    }
    return $connection;
  }

  /**
   * Tests the source plugin against a particular data set.
   *
   * @param array $source_data
   *   The source data that the plugin will read. See getDatabase() for the
   *   expected format.
   * @param array $expected_data
   *   The result rows the plugin is expected to return.
   * @param int $expected_count
   *   (optional) How many rows the source plugin is expected to return.
   * @param array $configuration
   *   (optional) Configuration for the source plugin.
   * @param mixed $high_water
   *   (optional) The value of the high water field.
   *
   * @dataProvider providerSource
   *
   * @requires extension pdo_sqlite
   */
  public function testSource(array $source_data, array $expected_data, $expected_count = NULL, array $configuration = [], $high_water = NULL) {
    $plugin = $this
      ->getPlugin($configuration);

    // Since we don't yet inject the database connection, we need to use a
    // reflection hack to set it in the plugin instance.
    $reflector = new \ReflectionObject($plugin);
    $property = $reflector
      ->getProperty('database');
    $property
      ->setAccessible(TRUE);
    $property
      ->setValue($plugin, $this
      ->getDatabase($source_data));
    parent::testSource($source_data, $expected_data, $expected_count, $configuration, $high_water);
  }

}

Classes

Name	Description
MigrateSqlSourceTestBase	Base class for tests of Migrate source plugins that use a database.