public function testFlipData()
{
$dao = new CRM_Core_BAO_PrevNextCache();
$dao->entity_id1 = 1;
$dao->entity_id2 = 2;
$dao->data = serialize(array('srcID' => 1, 'srcName' => 'Ms. Meliissa Mouse II', 'dstID' => 2, 'dstName' => 'Mr. Maurice Mouse II', 'weight' => 20, 'canMerge' => TRUE));
$dao->save();
$dao = new CRM_Core_BAO_PrevNextCache();
$dao->id = 1;
CRM_Core_BAO_PrevNextCache::flipPair(array(1), 0);
$dao->find(TRUE);
$this->assertEquals(1, $dao->entity_id1);
$this->assertEquals(2, $dao->entity_id2);
$this->assertEquals(serialize(array('srcName' => 'Mr. Maurice Mouse II', 'dstID' => 1, 'dstName' => 'Ms. Meliissa Mouse II', 'weight' => 20, 'canMerge' => TRUE, 'srcID' => 2)), $dao->data);
$this->quickCleanup(array('civicrm_prevnext_cache'));
}
