diff options
Diffstat (limited to 'prolog/problems/lists_advanced/len_2/common.py')
-rw-r--r-- | prolog/problems/lists_advanced/len_2/common.py | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/prolog/problems/lists_advanced/len_2/common.py b/prolog/problems/lists_advanced/len_2/common.py new file mode 100644 index 0000000..93a1faa --- /dev/null +++ b/prolog/problems/lists_advanced/len_2/common.py @@ -0,0 +1,49 @@ +# coding=utf-8 + +from operator import itemgetter +import prolog.engine +import server.problems + +id = 119 +number = 26 +visible = False +facts = None + +solution = '''\ +len([], 0). +len([_|T], Len) :- + len(T, LenT), + Len is LenT + 1. +''' + +test_cases = [ + ('len([8, 3, 5, 1], X)', + [{'X': '4'}]), + ('len([2, -3, 5, 0, 3], X)', + [{'X': '5'}]), + ('len([], X)', + [{'X': '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 + +def hint(code, aux_code): + # TODO + return [] |