class QueryTest

class QueryTest extends UnitTestCase {
  
  /**
   * The query object.
   *
   * @var \Drupal\Core\Entity\Query\Sql\Query
   */
  protected $query;
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() {
    parent::setUp();
    $entity_type = new EntityType([
      'id' => 'example_entity_query',
    ]);
    $conjunction = 'AND';
    $connection = $this->getMockBuilder('Drupal\\Core\\Database\\Connection')
      ->disableOriginalConstructor()
      ->getMock();
    $namespaces = [
      'Drupal\\Core\\Entity\\Query\\Sql',
    ];
    $this->query = new Query($entity_type, $conjunction, $connection, $namespaces);
  }
  
  /**
   * Tests entity query for entity type without base table.
   *
   * @covers ::prepare
   */
  public function testNoBaseTable() {
    $this->expectException(QueryException::class);
    $this->expectExceptionMessage('No base table for example_entity_query, invalid query.');
    $this->query
      ->execute();
  }
  
  /**
   * Tests revision entity query for entity type without revision table.
   *
   * @covers ::prepare
   */
  public function testNoRevisionTable() {
    $this->expectException(QueryException::class);
    $this->expectExceptionMessage('No revision table for example_entity_query, invalid query.');
    $this->query
      ->allRevisions()
      ->execute();
  }

}