public function testAttributesSurviveDisconnection()
 {
     $expected = \PDO::CASE_UPPER;
     $conn = new \PDOK\Connector('sqlite::memory:');
     $conn->setAttribute(\PDO::ATTR_CASE, $expected);
     $this->assertEquals($expected, $conn->getAttribute(\PDO::ATTR_CASE));
     $conn->connect();
     $this->assertEquals($expected, $conn->getAttribute(\PDO::ATTR_CASE));
     $conn->disconnect();
     $this->assertEquals($expected, $conn->getAttribute(\PDO::ATTR_CASE));
     $conn->connect();
     $this->assertEquals($expected, $conn->getAttribute(\PDO::ATTR_CASE));
 }