def content_children_test(self):
p=Content(name="parent")
p.put()
c1=Content(name="children1",parent=p)
c2=Content(name="children2",parent=p)
c1.put()
c2.put()
children=[c.key() for c in p.children]
self.assertEquals(len(children),2)
self.assertTrue(c1.key() in children and c2.key() in children)
c1.delete()
c2.delete()
p.delete()
