def test_successful(self):
:returns: A queryset containing the root nodes in the tree.
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/trial/test/test_tests.py/TestSuccess.test_successful--crossover with--dataset/ETHPy150Open tabo/django-treebeard/treebeard/models.py/Node.get_root_nodes