private function duplicateTaxonomyFromPoolToTest($poolTaxonomyId)
{
$testTaxonomy = new ilObjTaxonomy();
$testTaxonomy->create();
$poolTaxonomy = new ilObjTaxonomy($poolTaxonomyId);
$poolTaxonomy->doCloneObject($testTaxonomy, null, null);
$poolTaxonomy->getTree()->readRootId();
$testTaxonomy->getTree()->readRootId();
$testTaxonomy->update();
ilObjTaxonomy::saveUsage($testTaxonomy->getId(), $this->testOBJ->getId());
$this->duplicatedTaxonomiesKeysMap->addDuplicatedTaxonomy($poolTaxonomy, $testTaxonomy);
}