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from operator import itemgetter
import socket
import prolog.engine
import prolog.util
from server.hints import Hint, HintPopup
id = 173
number = 40
visible = True
facts = 'denotational_semantics_aux__predicates'
solution = '''\
prog_8puzzle(R0 --> R) -->
[begin],
{ findblank(R0,C0) },
instructs173(((R0,C0) --> (R,_C))),
[end].
instructs173((R0,C0) --> (R,C)) -->
instr173((R0,C0) --> (R,C)).
instructs173((R0,C0) --> (R,C)) -->
instr173((R0,C0) --> (R1,C1)), instructs173((R1,C1) --> (R,C)).
instr173((R0,C0) --> (R,C)) -->
[left], {Pos is (C0-1) mod 3,
(Pos>0, C is C0-1, swap(R0,C0,C,R)
;
Pos=0, C=C0, R=R0)}.
instr173((R0,C0) --> (R,C)) -->
[right], {Pos is (C0-1) mod 3,
(Pos<2, C is C0+1, swap(R0,C0,C,R)
;
Pos=2, C=C0, R=R0)}.
instr173((R0,C0) --> (R,C)) -->
[up], { (C0>3, C is C0-3, swap(R0,C0,C,R)
;
C0=<3, C=C0, R=R0)}.
instr173((R0,C0) --> (R,C)) -->
[down], { (C0=<6, C is C0+3, swap(R0,C0,C,R)
;
C0>6, C=C0, R=R0)}.
'''
test_cases = [
('findall(W, (W = [_], prog_8puzzle(_, W, [])), Words), Words == []',
[{}]),
('prog_8puzzle([1,2,3,4,5,6,7,8,0]-->Out, [begin,down,right,left,end], []), Out == [1,2,3,4,5,6,7,0,8]',
[{}]),
('prog_8puzzle([1,2,3,4,5,6,7,8,0]-->Out, [begin,up,up,left,left,end], []), Out == [0,1,2,4,5,3,7,8,6]',
[{}]),
('prog_8puzzle([1,2,3,4,5,6,7,8,0]-->Out, [begin,left,up,right,up,left,down,down,right,end], []), \
Out == [1,6,2,4,5,3,7,8,0]',
[{}]),
]
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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