def test_add_unexpected_child(self):
tracker = self.tracker()
parent = Node("parent", None, tracker.root)
parent2 = Node("parent2", None, tracker.root)
child = Node("child", None, parent)
with pytest.raises(exceptions.LoadError):
parent2.addchild(child)
def test_detach_noop(self):
tracker = self.tracker()
node = Node("node", None, None)
node = node.detach()
assert not node.parent
assert not node.root
parent2 = Node("parent2", None, tracker.root)
parent2.addchild(node)
assert list(parent2.children) == [node]
assert node.root is tracker.root
assert node.parent is parent2
def test_copy_newplace(self):
tracker = self.tracker()
parent1 = Node("parent1", None, tracker.root)
parent2 = Node("parent2", None, tracker.root)
node = Node("node", None, parent1)
newnode = node.copy(parent2)
parent2.addchild(newnode)
assert newnode.node_type == node.node_type
assert newnode.text == node.text
assert newnode.parent is parent2
assert newnode.root is tracker.root
def test_allowed_parents(self):
tracker = self.tracker()
class ChildNode(Node):
children_of = ("allowed-parent",)
allowed_parent = Node("allowed-parent", None, tracker.root)
child1 = ChildNode("child1", None, allowed_parent)
child1._validate()
allowed_parent.addchild(child1)
disallowed_parent = Node("some-other-node", None, tracker.root)
child2 = ChildNode("child2", None, disallowed_parent)
with pytest.raises(exceptions.LoadError):
child2._validate()
def test_remove_child(self):
tracker = self.tracker()
parent1 = Node("parent1", None, tracker.root)
parent2 = Node("parent2", None, tracker.root)
child = Node("child", None, parent1)
parent1.addchild(child)
assert list(parent1.children) == [child]
assert child.parent is parent1
child = child.detach()
assert child.parent is None
assert list(parent1.children) == []
child.parent = parent2
parent2.addchild(child)
assert list(parent2.children) == [child]
assert child.parent is parent2
def test_copy_new_tracker(self):
tracker1 = self.tracker()
tracker2 = self.tracker()
node1 = Node("node", "text", tracker1.root)
tracker1.root.addchild(node1)
node1_child = Node("nodechild", None, node1)
node1.addchild(node1_child)
node2 = node1.copy(tracker2.root)
tracker2.root.addchild(node2)
assert node2.root is tracker2.root
assert node2.parent is tracker2.root
node2_child = node2.children.next_neighbor
assert node2_child.root is tracker2.root
assert node2_child.parent is node2
assert node1.node_type == node2.node_type
assert node1.text == node2.text
assert node1_child.node_type == node2_child.node_type
assert node1_child.text == node2_child.text
