def test_statics2():
type_object = Type("object", None)
predicate_a = Predicate("a", [])
predicate_b = Predicate("b", [])
the_action = get_action("the-action", [], [predicate_a], [predicate_b], [])
statics = grounding._get_statics([predicate_a, predicate_b], [the_action])
assert predicate_a.name in statics and predicate_b.name not in statics
def test_statics1():
"""
A static predicate is a predicate, which doesn't occur in an effect of an
action.
"""
type_object = Type("object", None)
type_car = Type("car", type_vehicle)
type_city = Type("city", type_object)
type_country = Type("country", type_object)
types = {
"object": type_object,
"car": type_car,
"city": type_city,
"country": type_country,
}
predicate_orig = Predicate("at", [("car", types["car"]),
("dest", types["city"])])
predicate_dest = Predicate("at", [("car", types["car"]),
("orig", types["city"])])
predicate_in = Predicate("in", [("city", types["city"]),
("country", types["country"])])
action_drive_car = get_action(
"DRIVE-CAR",
[
("car", [types["car"]]),
("loc-orig", [types["city"]]),
("loc-dest", [types["city"]]),
],
[predicate_orig],
[predicate_dest],
[predicate_orig],
)
assert "in" in grounding._get_statics([predicate_in], [action_drive_car])
assert "dest" not in grounding._get_statics([predicate_dest],
[action_drive_car])
assert "orig" not in grounding._get_statics([predicate_orig],
[action_drive_car])
def test_create_operator():
statics = grounding._get_statics(
standard_domain.predicates.values(), [action_drive_car]
)
initial_state = [
Predicate("at", [("ford", types["car"]), ("freiburg", types["city"])])
]
operator = grounding._create_operator(
action_drive_car,
{"car": "ford", "dest": "berlin", "orig": "freiburg"},
[],
initial_state,
)
assert operator.name == "(DRIVE-CAR ford freiburg berlin)"
assert operator.preconditions == {"(at ford berlin)"}
assert operator.add_effects == {"(at ford freiburg)"}
assert operator.del_effects == {"(at ford berlin)"}
def test_predicate():
test = Predicate("test", list(("a", list())))
assert str(test) == repr(test)
def test_regression():
parser = Parser("")
def parse_problem(domain, problem):
parser.domInput = domain
parser.probInput = problem
domain = parser.parse_domain(False)
return parser.parse_problem(domain, False)
prob_05 = """
;; See domain file for description of this test.
(define (problem regression-test-05)
(:domain regression-test)
(:objects y - object)
(:init)
(:goal (the-predicate x y)))
"""
dom_05 = """
;; Expected behaviour: plan of length one found
;; Observed behaviour (r265): plan of length zero found
(define (domain regression-test)
(:requirements :typing) ;; work around problem in regression test #4.
(:predicates (the-predicate ?v1 ?v2 - object))
(:constants x - object)
(:action theaction
:parameters (?x - object)
:precondition (and)
:effect (the-predicate x ?x)
)
)
"""
prob_06 = """
;; See domain file for description of this test.
(define (problem regression-test-06)
(:domain regression-test)
(:objects y - object)
(:init)
(:goal (the-predicate y y)))
"""
dom_06 = """
;; Expected behaviour: planner proves that no plan exists
;; Observed behaviour (r265): plan of length one found
(define (domain regression-test)
(:requirements :typing) ;; work around problem in regression test #4.
(:predicates (the-predicate ?v1 ?v2 - object))
(:constants x - object)
(:action theaction
:parameters (?x - object)
:precondition (and)
:effect (the-predicate x ?x)
)
)
"""
# problem / domain 07 contains a different action compared
# to the actions of domain 5 & 6
prob_07 = prob_06
dom_07 = """
(define (domain regression-test)
(:requirements :typing) ;; work around problem in regression test #4.
(:predicates (the-predicate ?v1 ?v2 - object))
(:constants y - object)
(:action theaction
:parameters (?x - object)
:precondition (and)
:effect (the-predicate y ?x)
)
)
"""
# action of problem / domain 8 differs only in the variable name compared
# to the actions of problem 5 and 6: After grounding there should be no
# difference between the grounded actions
prob_08 = prob_05
dom_08 = """
(define (domain regression-test)
(:requirements :typing) ;; work around problem in regression test #4.
(:predicates (the-predicate ?v1 ?v2 - object))
(:constants x - object)
(:action theaction
:parameters (?z - object)
:precondition (and)
:effect (the-predicate x ?z)
)
)
"""
parsed_problem5 = parse_problem(dom_05, prob_05)
parsed_problem6 = parse_problem(dom_06, prob_06)
parsed_problem7 = parse_problem(dom_07, prob_07)
parsed_problem8 = parse_problem(dom_08, prob_08)
# coded input:
type_object = Type("object", None)
types = {"object": type_object}
predicates = {
"the_predicate": Predicate(
"the-predicate", [("v1", type_object), ("v2", type_object)]
)
}
constants = {"x": type_object}
actions = {
"theaction": get_action(
"theaction",
[("?x", [type_object])],
[],
[Predicate("the-predicate", [("x", type_object), ("?x", type_object)])],
[],
)
}
domain = Domain("regression-test", types, predicates, actions, constants)
problem5 = Problem(
"regression-test-05",
domain,
{"y": type_object},
[],
[Predicate("the-predicate", [("x", type_object), ("y", type_object)])],
)
problem6 = Problem(
"regression-test-06",
domain,
{"y": type_object},
[],
[Predicate("the-predicate", [("y", type_object), ("y", type_object)])],
)
parsed_task5 = grounding.ground(parsed_problem5)
coded_task5 = grounding.ground(problem5)
parsed_task6 = grounding.ground(parsed_problem6)
coded_task6 = grounding.ground(problem6)
parsed_task7 = grounding.ground(parsed_problem7)
parsed_task8 = grounding.ground(parsed_problem8)
expected = [
(parsed_task5.operators, coded_task5.operators, True),
(parsed_task6.operators, coded_task6.operators, True),
(parsed_task5.operators, coded_task6.operators, False),
(parsed_task5.operators, parsed_task7.operators, False),
(parsed_task5.operators, parsed_task8.operators, True),
]
for operator1, operator2, expected_result in expected:
assert compare_operators(operator1, operator2) == expected_result
def test_operators():
# action with signature with 2 types
action_drive_vehicle = get_action(
"DRIVE-VEHICLE",
[
("vehicle", [types["car"], types["truck"]]),
("orig", [types["city"]]),
("dest", [types["city"]]),
],
[predicate_veh_orig],
[predicate_veh_dest],
[predicate_veh_orig],
)
# action with predicate in add & delete list
action_add_delete = get_action(
"STAY",
[("car", [types["car"]]), ("in", [types["city"]])],
[predicate_in],
[predicate_in],
[predicate_in],
)
# action with constant input
action_constant = get_action(
"CONSTANT-ACTION",
[("my_car", [types["my_car"]]), ("city", [types["city"]])],
[],
[
Predicate(
"in", [("basel", [types["city"]]), ("switzerland", [types["country"]])]
)
],
[],
)
# action with only delete effects
action_only_delete = get_action(
"LEAVE",
[("car", [types["car"]]), ("in", [types["city"]])],
[predicate_in],
[],
[predicate_in],
)
# action with delete effect which does not occur in precondition
action_delete = get_action(
"DELETE",
[("car", [types["car"]]), ("orig", [types["city"]]), ("dest", [types["city"]])],
[],
[predicate_car_orig],
[predicate_car_dest],
)
type_map = grounding._create_type_map(objects)
grounded_initial_state = grounding._get_partial_state(initial_state)
grounded_drive_car = list(
grounding._ground_action(action_drive_car, type_map, [], grounded_initial_state)
)
grounded_drive_vehicle = list(
grounding._ground_action(
action_drive_vehicle, type_map, [], grounded_initial_state
)
)
grounded_add_delete = list(
grounding._ground_action(
action_add_delete, type_map, [], grounded_initial_state
)
)
grounded_only_delete = list(
grounding._ground_action(
action_only_delete, type_map, [], grounded_initial_state
)
)
grounded_delete = list(
grounding._ground_action(action_delete, type_map, [], grounded_initial_state)
)
domain = Domain(
"test_domain",
types,
{
"in": Predicate(
"in", [("city", types["city"]), ("country", types["country"])]
)
},
{"action-constant": action_constant},
{"my_car": types["car"]},
)
problem = Problem("test_problem", domain, objects, initial_state, goal_state)
task = grounding.ground(problem)
expected = [
("(DRIVE-CAR red_car freiburg basel)", grounded_drive_car),
("(DRIVE-VEHICLE blue_truck freiburg basel)", grounded_drive_vehicle),
("(STAY red_car freiburg)", grounded_add_delete),
("(LEAVE red_car freiburg)", grounded_only_delete),
("(DELETE red_car freiburg basel)", grounded_delete),
]
for operator, grounded_operators in expected:
assert any(op.name == operator for op in grounded_operators)
type_my_car = Type("my_car", type_vehicle)
type_color = Type("color", type_object)
types = {
"object": type_object,
"vehicle": type_vehicle,
"car": type_car,
"truck": type_truck,
"city": type_city,
"country": type_country,
"my_car": type_my_car,
"color": type_color,
}
# predicates:
predicate_car_orig = Predicate("at", [("car", types["car"]), ("orig", types["city"])])
predicate_car_dest = Predicate("at", [("car", types["car"]), ("dest", types["city"])])
predicate_veh_orig = Predicate(
"at", [("vehicle", types["vehicle"]), ("orig", types["city"])]
)
predicate_veh_dest = Predicate(
"at", [("vehicle", types["vehicle"]), ("dest", types["city"])]
)
predicate_in = Predicate("in", [("car", types["car"]), ("in", types["city"])])
# predicate which does not occur in any operator:
predicate_car_color = Predicate(
"car_color", [("car", types["car"]), ("color", types["color"])]
)
predicates = {
"at": predicate_car_dest,