def test_collision_handler_pusher_pickle():
from panda3d.core import CollisionHandlerPusher
collider1 = NodePath(CollisionNode("collider1"))
collider2 = NodePath(CollisionNode("collider2"))
target1 = NodePath("target1")
target2 = NodePath("target2")
handler = CollisionHandlerPusher()
handler.add_again_pattern("again pattern")
handler.add_collider(collider1, target1)
handler.add_collider(collider2, target2)
handler.horizontal = True
handler = loads(dumps(handler, -1))
assert tuple(handler.in_patterns) == ()
assert tuple(handler.again_patterns) == ("again pattern", )
assert tuple(handler.out_patterns) == ()
assert not handler.has_center()
assert handler.horizontal