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-rw-r--r--prolog/problems/trees/deletebt_3/common.py52
1 files changed, 49 insertions, 3 deletions
diff --git a/prolog/problems/trees/deletebt_3/common.py b/prolog/problems/trees/deletebt_3/common.py
index 52f9e3f..748fcbf 100644
--- a/prolog/problems/trees/deletebt_3/common.py
+++ b/prolog/problems/trees/deletebt_3/common.py
@@ -1,8 +1,13 @@
-# coding=utf-8
+from operator import itemgetter
+import socket
+
+import prolog.engine
+import prolog.util
+from server.hints import Hint, HintPopup
id = 137
-number = 47
-visible = False
+number = 60
+visible = True
facts = None
solution = '''\
@@ -16,3 +21,44 @@ deleteBT(X, b(L, E, R), b(L1, E, R)) :-
deleteBT(X, b(L, E, R), b(L, E, R1)) :-
deleteBT(X, R, R1).
'''
+
+test_cases = [
+ ('deleteBT(q, b(nil,q,nil), X), X == nil',
+ [{}]),
+ ('''setof(T, deleteBT(2, b(b(b(nil,4,nil),2,b(nil,6,nil)),1,b(nil,3,b(nil,5,nil))), T), X),
+ X == [b(b(nil,4,b(nil,6,nil)),1,b(nil,3,b(nil,5,nil))),b(b(b(nil,4,nil),6,nil),1,b(nil,3,b(nil,5,nil)))]''',
+ [{}]),
+ ('''setof(T, deleteBT(8, b(b(b(b(nil,8,nil),7,nil),3,b(nil,2,nil)),8,b(b(nil,4,nil),8,b(nil,1,nil))), T), X),
+ X == [b(b(b(nil,7,nil),3,b(nil,2,nil)),8,b(b(nil,4,nil),8,b(nil,1,nil))),
+ b(b(b(nil,8,nil),7,b(nil,2,nil)),3,b(b(nil,4,nil),8,b(nil,1,nil))),
+ b(b(b(b(nil,8,nil),7,nil),2,nil),3,b(b(nil,4,nil),8,b(nil,1,nil))),
+ b(b(b(b(nil,8,nil),7,nil),3,b(nil,2,nil)),8,b(nil,4,b(nil,1,nil))),
+ b(b(b(b(nil,8,nil),7,nil),3,b(nil,2,nil)),8,b(b(nil,4,nil),1,nil))]''',
+ [{}]),
+ ('''setof(T, deleteBT(2, b(b(b(b(nil,8,nil),7,nil),3,b(nil,2,nil)),8,b(b(nil,4,nil),8,b(nil,1,nil))), T), X),
+ X == [b(b(b(b(nil,8,nil),7,nil),3,nil),8,b(b(nil,4,nil),8,b(nil,1,nil)))]''',
+ [{}]),
+]
+
+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 []