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from operator import itemgetter
import socket
import prolog.engine
import prolog.util
from server.hints import Hint, HintPopup
id = 161
number = 40
visible = True
facts = None
solution = '''\
turkey(Brand1, Brand2, Cost) :-
{Cost = Brand1*0.20 + Brand2*0.30,
A = Brand1*5 + Brand2*10,
B = Brand1*4 + Brand2*3,
C = Brand1*0.5,
A >= 90, B >= 48, C >= 1.5},
minimize(Cost).
'''
test_cases = [
('turkey(A, B, Cost), abs(A - 8.4) =< 1e-8, abs(B - 4.8) =< 1e-8, abs(Cost - 3.12) =< 1e-8',
[{}]),
('setof(A/B/Cost, turkey(A, B, Cost), L), L = [A/B/Cost], abs(A - 8.4) =< 1e-8, abs(B - 4.8) =< 1e-8, abs(Cost - 3.12) =< 1e-8',
[{}]),
]
def test(code, aux_code):
n_correct = 0
engine_id = None
try:
engine_id, output = prolog.engine.create(code=code+aux_code, timeout=1.0)
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):
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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