public function itFetchAllChildren()
 {
     $tracker = mock('Tracker');
     stub($tracker)->userIsAdmin($this->user)->returns(true);
     $artifacts = array(anArtifact()->withId(11)->userCanView($this->user)->withTracker($tracker)->build(), anArtifact()->withId(12)->userCanView($this->user)->withTracker($tracker)->build());
     $artiafct_as_dar1 = anArtifactDar()->withId(55)->build();
     $artiafct_as_dar2 = anArtifactDar()->withId(56)->build();
     stub($this->dao)->getChildrenForArtifacts(array(11, 12))->returnsDar($artiafct_as_dar1, $artiafct_as_dar2);
     $child_artifact1 = anArtifact()->withId(22)->userCanView($this->user)->withTracker($tracker)->build();
     $child_artifact2 = anArtifact()->withId(88)->userCanView($this->user)->withTracker($tracker)->build();
     stub($this->artifact_factory)->getInstanceFromRow($artiafct_as_dar1)->returns($child_artifact1);
     stub($this->artifact_factory)->getInstanceFromRow($artiafct_as_dar2)->returns($child_artifact2);
     $this->artifact_factory->getChildrenForArtifacts($this->user, $artifacts);
 }