/**
  * Extracts a parent join identifier
  *
  * @param string $joinId
  *
  * @return string
  * @throws \LogicException if incorrect join identifier specified
  */
 public function getParentJoinIdentifier($joinId)
 {
     return $this->joinIdHelper->getParentJoinIdentifier($joinId);
 }
 /**
  * @dataProvider getParentJoinIdentifierProvider
  */
 public function testGetParentJoinIdentifier($joinId, $expected)
 {
     $this->assertEquals($expected, $this->helper->getParentJoinIdentifier($joinId));
 }