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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
from server.hints import Hint
id = 20609
number = 10
visible = True
solution = '''\
def children(tree, name):
if name in tree:
return tree[name]
return []
def successors(tree, name):
names = []
for child in children(tree, name):
names.append(child)
names.extend(successors(tree, child))
return names
'''
hint_type = {
'final_hint': Hint('final_hint')
}
def test(python, code):
func_name = 'successors'
tokens = get_tokens(code)
if not has_token_sequence(tokens, ['def', func_name]):
return False, [{'id' : 'no_func_name', 'args' : {'func_name' : func_name}}]
tree = {
'alice': ['mary', 'tom', 'judy'],
'bob': ['mary', 'tom', 'judy'],
'ken': ['suzan'],
'renee': ['rob', 'bob'],
'rob': ['jim'],
'sid': ['rob', 'bob'],
'tom': ['ken']}
in_out = [
((tree, 'tom'), ['ken', 'suzan']),
((tree, 'sid'), ['rob', 'bob', 'jim', 'mary',
'tom', 'judy', 'ken', 'suzan']),
((tree, 'suzan'), []),
((tree, 'ken'), ['suzan']),
((tree, 'rob'), ['jim']),
]
test_in = [(func_name+'%s'%str(l[0]), None) for l in in_out]
test_out = [l[1] for l in in_out]
answers = python(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)):
corr = set(ans[0]) == set(to) and len(ans[0]) == len(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):
tokens = get_tokens(code)
# run one test first to see if there are any exceptions
answer = python(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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