def test_set_prior_waiting_on_itself(self):
node = DirectoryNode("path_part", None)
node.lock()
node.waiting_nodes.append("another task")
node.add_waiting_node(node)
assert node in node.waiting_nodes
assert node is node.waiting_nodes[1]
assert node is node.waiting_for_node
node.set_prior()
assert node in node.waiting_nodes
assert node is node.waiting_nodes[0]
assert node is node.waiting_for_node
def test_set_prior_waiting_on_another_node(self):
node1 = DirectoryNode("path_part1", None)
node2 = DirectoryNode("path_part2", node1)
node2.lock(node1)
node1.waiting_nodes.append("another task")
node2.add_waiting_node(node2)
assert node2 in node1.waiting_nodes
assert node2 is node1.waiting_nodes[1]
assert node1 is node2.waiting_for_node
node2.set_prior()
assert node2 in node1.waiting_nodes
assert node2 is node1.waiting_nodes[0]
assert node1 is node2.waiting_for_node
def test_set_prior_no_waiting(self):
node = DirectoryNode("path_part", None)
node.set_prior()