'A basic tree with two direct children and no sub-trees on
either.'

@pytest.mark.move
def test_children_simple(self):

    d1 = document(title='Parent', save=True)
    d2 = document(title='Child', save=True)
    d2.parent_topic = d1
    d2.save()
    d3 = document(title='Another    child', save=True)
    d3.parent_topic = d1
    d3.save()
    eq_([d2, d3], d1.get_descendants())
