hierarchy
GET /hierarchy
✓ should render an empty item hierarchy tree
double callback!
✓ should render an item hierarchy tree with one item with no children
double callback!
✓ should render an item hierarchy with one rooted item containing a single child
double callback!
✓ should render an item heirarchy with one rooted item containing multiple children
double callback!
✓ should render an item hierarchy with one rooted item containing a nested child
double callback!
✓ should render an item hierarchy with multiple rooted items with no children
double callback!
✓ should render an item hierarchy with multiple rooted items with no children
double callback!
✓ should render an item hierarchy with multiple rooted items with children
double callback!
✓ should render an item hierarchy with multiple rooted items with nested items
double callback!
i.e.