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from operator import itemgetter
import socket
import prolog.engine
import prolog.util
from server.hints import Hint, HintPopup
id = 136
number = 20
visible = True
facts = None
solution = '''\
mirrorBT(nil, nil).
mirrorBT(b(L, X, R), b(NewR, X, NewL)) :-
mirrorBT(L, NewL),
mirrorBT(R, NewR).
'''
test_cases = [
('mirrorBT(nil, X)',
[{'X': 'nil'}]),
('\+ mirrorBT(42, 42)',
[{}]),
('mirrorBT(b(nil,q,nil), X), X == b(nil,q,nil)',
[{}]),
('mirrorBT(b(b(nil,a,nil),d,b(nil,c,nil)), X), X == b(b(nil,c,nil),d,b(nil,a,nil))',
[{}]),
('''mirrorBT(b(b(nil,2,nil),1,b(nil,3,b(nil,4,nil))),X),
X == b(b(b(nil,4,nil),3,nil),1,b(nil,2,nil))''',
[{}]),
('''mirrorBT(b(b(b(nil,4,nil),2,b(nil,6,nil)),1,b(nil,3,b(nil,5,nil))),X),
X == b(b(b(nil,5,nil),3,nil),1,b(b(nil,6,nil),2,b(nil,4,nil)))''',
[{}]),
]
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
def hint(code, aux_code):
# TODO
return []
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