Tests added for CLP(R) set of exercises.

1 files changed, 40 insertions, 1 deletions

diff --git a/prolog/problems/clp_r/center_3/common.py b/prolog/problems/clp_r/center_3/common.py
index 856194d..4061d01 100644
--- a/prolog/problems/clp_r/center_3/common.py
+++ b/prolog/problems/clp_r/center_3/common.py
@@ -1,8 +1,15 @@
 # coding=utf-8
 
+from operator import itemgetter
+import socket
+
+import prolog.engine
+import prolog.util
+from server.hints import Hint, HintPopup
+
 id = 158
 number = 68
-visible = False
+visible = True
 facts = None
 
 solution = '''\
@@ -19,3 +26,35 @@ center(L, R, Xc/Yc) :-
     memb158(Xc/Yc, L),
     check158(L, R, Xc/Yc).
 '''
+
+test_cases = [
+    ('setof(P, center([7.3/7.3, 3.3/0.0, 0.6/1.2, 4.1/6.9], 9.0, P), L), L = [X1/Y1, X2/Y2], \
+      abs(X1 - 3.3) =< 1e-8, abs(Y1 - 0.0) =< 1e-8, abs(X2 - 4.1) =< 1e-8, abs(Y2 - 6.9) =< 1e-8',
+        [{}]),
+    ('setof(P, center([4.7/3.2, 1.0/ -4.4, 0.2/4.1, 0.0/6.5, 2.1/4.1, 2.2/1.5, 5.5/ -2.7], 7.0, P), L), L = [X1/Y1], \
+      abs(X1 - 2.2) =< 1e-8, abs(Y1 - 1.5) =< 1e-8',
+        [{}]),
+    ('setof(P, center([1.0/0.0, 2.0/0.0, 3.0/0.0, 4.0/0.0, 3.5/0.0], 2.3, P), L), L = [X1/Y1, X2/Y2], \
+      abs(X1 - 2.0) =< 1e-8, abs(Y1 - 0.0) =< 1e-8, abs(X2 - 3.0) =< 1e-8, abs(Y2 - 0.0) =< 1e-8',
+        [{}]),
+]
+
+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
+