2 files changed, 50 insertions, 0 deletions
diff --git a/prolog/problems/sorting/quick_sort_2/common.py b/prolog/problems/sorting/quick_sort_2/common.py
index 4afc8fa..d46c185 100644
--- a/prolog/problems/sorting/quick_sort_2/common.py
+++ b/prolog/problems/sorting/quick_sort_2/common.py
@@ -1,5 +1,9 @@
 # coding=utf-8
 
+from operator import itemgetter
+import prolog.engine
+import server.problems
+
 id = 125
 number = 32
 visible = True
@@ -23,3 +27,36 @@ quick_sort([Pivot|T], Sorted) :-
   quick_sort(Greater, SortedGreater),
   conc125(SortedSmaller, [Pivot|SortedGreater], Sorted).
 '''
+
+test_cases = [
+    ('quick_sort([], X)',
+        [{'X': '[]'}]),
+    ('quick_sort([5, 3, 5, 5, 1, 2, 0], X)',
+        [{'X': '[0, 1, 2, 3, 5, 5, 5]'}]),
+    ('quick_sort([2, 1, 3, 5, 6, 0, 22, 3], X)',
+        [{'X': '[0, 1, 2, 3, 3, 5, 6, 22]'}]),
+    ('quick_sort([5, 4, 3, 2, 1], X)',
+        [{'X': '[1, 2, 3, 4, 5]'}]),
+]
+
+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
+    finally:
+        if engine_id:
+            prolog.engine.destroy(engine_id)
+
+    passed = n_correct == len(test_cases)
+    hints = [{'id': 'test_results', 'args': {'passed': n_correct, 'total': len(test_cases)}}]
+    return passed, hints
+
+def hint(program, solved_problems):
+    # TODO
+    return []
diff --git a/prolog/problems/sorting/quick_sort_2/sl.py b/prolog/problems/sorting/quick_sort_2/sl.py
new file mode 100644
index 0000000..9611b46
--- /dev/null
+++ b/prolog/problems/sorting/quick_sort_2/sl.py
@@ -0,0 +1,13 @@
+# coding=utf-8
+
+name = 'quick_sort/2'
+slug = 'Uredi seznam z algoritmom quicksort'
+
+description = '''\
+<p><code>quick_sort(L, SL)</code>: seznam <code>SL</code> vsebuje elemente iz <code>L</code> urejene v naraščajočem vrstnem redu. Uporabi predikat <code>pivoting/4</code> za implementacijo algoritma quicksort.</p>
+<pre>
+  ?- quick_sort([2,3,1,5,4], L).
+    L = [1,2,3,4,5].
+</pre>'''
+
+hint = {}