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import re
from python.util import has_token_sequence, string_almost_equal, \
string_contains_number, get_tokens, get_numbers, get_exception_desc, \
all_tokens, has_comprehension, has_loop, almost_equal, get_ast
from server.hints import Hint
id = 20804
number = 4
visible = True
facts = 'family_tree'
solution = '''\
def depthto(fr, to):
if fr == to:
return 0
for c in children[fr]:
d = depthto(c, to)
if d is not None:
return d + 1
'''
hint_type = {
'final_hint': Hint('final_hint')
}
def test(python, code, aux_code=''):
func_name = 'depthto'
tokens = get_tokens(code)
if not has_token_sequence(tokens, ['def', func_name]):
return False, [{'id' : 'no_func_name', 'args' : {'func_name' : func_name}}]
in_out = [
(('Hans', 'Hans'), 0),
(('Daniel', 'Hans'), 1),
(('Adam', 'Hans'), 2),
(('Adam', 'Franc'), 4),
(('Adam', 'Petra'), 5),
(('Elizabeta', 'Aleksander'), 3),
(('Adam', 'Tadeja'), 3),
(('Daniel', 'Ludvik'), 2)
]
test_in = [('{0}{1}'.format(func_name, str(l[0])), None)
for l in in_out]
test_out = [l[1] for l in in_out]
answers = python(code=aux_code+code, inputs=test_in, timeout=1.0)
n_correct = 0
tin, tout = None, None
for i, (ans, to) in enumerate(zip(answers, test_out)):
res = ans[0]
corr = res == to
n_correct += corr
if not corr:
tin = test_in[i][0]
tout = to
passed = n_correct == len(test_in)
hints = [{'id': 'test_results', 'args': {'passed': n_correct, 'total': len(test_in)}}]
if tin:
hints.append({'id': 'problematic_test_case', 'args': {'testin': str(tin), 'testout': str(tout)}})
if passed:
hints.append({'id': 'final_hint'})
return passed, hints
def hint(python, code, aux_code=''):
tokens = get_tokens(code)
# run one test first to see if there are any exceptions
answer = python(code=aux_code+code, inputs=[(None, None)], timeout=1.0)
exc = get_exception_desc(answer[0][3])
if exc: return exc
return None
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