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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 = 25014
number = 2
visible = True
solution = '''\
seznam = eval(input("Vpišite seznam števil: "))
vsota = 0
for elt in seznam:
vsota += elt
print(vsota)
if len(seznam) != 0:
print(vsota/len(seznam))
else:
print(0)
'''
hint_type = {
'no_input_call' : Hint('no_input_call'),
'no_eval_call' : Hint('no_eval_call'),
'printing': Hint('printing'),
'final_hint': Hint('final_hint')
}
def test(python, code, aux_code=''):
tokens = get_tokens(code)
test_in = [
(None, '[]\n'),
(None, '[-1, -2, -3]\n'),
(None, '[2, 4, 6, 8, 10]\n'),
(None, '[23, 42, 87, 34, 1, -3, 2]\n')
]
test_out = [
'0\n0',
'-6\n-2.0',
'30\n6.0',
'186\n26.571428571428573'
]
# List of outputs: (expression result, stdout, stderr, exception).
answers = python(code=aux_code+code, inputs=test_in, timeout=1.0)
outputs = [ans[1] for ans in answers]
n_correct = 0
tin = None
for i, (output, correct) in enumerate(zip(outputs, test_out)):
if output.rstrip().endswith(correct):
n_correct += 1
else:
tin = test_in[i][1]
tout = correct
passed = n_correct == len(test_in)
hints = [{'id': 'test_results', 'args': {'passed': n_correct, 'total': len(test_in)}}]
if tin != None:
hints.append({'id': 'problematic_test_case', 'args': {'testin': str(tin), 'testout': str(tout)}})
else:
hints.append({'id' : 'final_hint'})
return passed, hints
def hint(python, code, aux_code=''):
# run one test first to see if there are any exceptions
answer = python(code=aux_code+code, inputs=[(None, '[-1, -2, -3]\n')], timeout=1.0)
exc = get_exception_desc(answer[0][3])
if exc: return exc
tokens = get_tokens(code)
if not has_token_sequence(tokens, ['input']):
return [{'id': 'no_input_call'}]
if not has_token_sequence(tokens, ['eval']):
return [{'id': 'no_eval_call'}]
# student is not using print function
if not has_token_sequence(tokens, ['print']):
return [{'id' : 'printing'}]
return None
|
