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from operator import itemgetter
import socket
import prolog.engine
from server.hints import Hint
import server.problems
id = 12536
number = 20
visible = True
facts = 'mondial'
solution = '''\
grant(Loc):-
(city(Loc, _, _, _, Lat, _, _)
;
island(Loc, _, _, _, _, Lat, _)),
number(Lat),
Lat > -38,
Lat < -36.
'''
test_cases = [
("grant(Loc)",
[{'Loc': "'Melbourne'"}, {'Loc': "'Auckland'"}, {'Loc': "'Hamilton'"}, {'Loc': "'Santa Rosa'"},
{'Loc': "'Concepción'"}, {'Loc': "'Talcahuano'"}, {'Loc': "'Tristan Da Cunha'"}]),
("\+ grant('Ljubljana')",
[{}]),
("grant('Tristan Da Cunha')",
[{}]),
]
def test(code, aux_code):
n_correct = 0
engine_id = None
try:
engine_id, output = prolog.engine.create(code=code+aux_code, timeout=5.0)
if engine_id is not None and 'error' not in map(itemgetter(0), output):
# Engine successfully created, and no syntax error in program.
for query, answers in test_cases:
if prolog.engine.check_answers(engine_id, query=query, answers=answers, timeout=1.0, inference_limit = None):
n_correct += 1
except socket.timeout:
pass
finally:
if engine_id:
prolog.engine.destroy(engine_id)
hints = [{'id': 'test_results', 'args': {'passed': n_correct, 'total': len(test_cases)}}]
return n_correct, len(test_cases), hints
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