public function testGetByNestingLevel()
{
// existed nested node
$result = TreeUtils::getByNestingLevel(self::getTestGroup(), 2);
$this->assertEquals(2, $result->getLevel());
$this->assertEquals('node2', $result->getName());
// not found node
$result = TreeUtils::getByNestingLevel(self::getTestGroup(), 5);
$this->assertNull($result);
}
/**
* {@inheritdoc}
*/
public function chooseActiveGroups($activeGroup, $activeSubGroup)
{
$tree = $this->getTree();
if ($activeGroup === null) {
$activeGroup = TreeUtils::getFirstNodeName($tree);
}
// we can find active subgroup only in case if group is specified
if ($activeSubGroup === null && $activeGroup) {
$subtree = TreeUtils::findNodeByName($tree, $activeGroup);
if ($subtree instanceof GroupNodeDefinition) {
$subGroups = TreeUtils::getByNestingLevel($subtree, 2);
if ($subGroups instanceof GroupNodeDefinition) {
$activeSubGroup = TreeUtils::getFirstNodeName($subGroups);
}
}
}
return array($activeGroup, $activeSubGroup);
}
