diff --git a/bin/test.py b/bin/test.py
index 2b09a10..5725805 100755
--- a/bin/test.py
+++ b/bin/test.py
@@ -8,24 +8,30 @@ from baker.tools import exact_func_3D
 try:
   total_points = int(sys.argv[1])
 except:
-  total_points = 100
+  total_points = 20
 
+
+print total_points
 g = simple_random_grid(total_points)
 
 open('/tmp/for_qhull.txt', 'w').write(g.for_qhull())
 
-X = [0.5, 0.3, 0.4]
+X = [0.3, 0.3, 0.4]
 
-R, S =  g.get_simplex_and_nearest_points(X, extra_points = 3, simplex_size=4)
+R, S =  g.get_simplex_and_nearest_points(X, extra_points = 6, simplex_size=4)
 
-
-print "R", R
-print "S", S
+print "R\n", R
+print "S\n", S
 
 exact = exact_func_3D(X)
 print "exact solution: %0.6f" % exact
 
-print "phi values: ", get_phis_3D(X, R.points)
+phis = get_phis_3D(X, R.points)
+print "phi values (should all be positive): ", phis
+if [i for i in phis if i < 0.0]:
+  print "problems"
+  sys.exit(1)
+
 r = run_baker_3D(X, R, S)
 
 print 'qlin' , r['qlin']
@@ -34,5 +40,7 @@ print 'final', r['final']
 
 if abs(r['final'] - exact) <= abs(r['qlin'] - exact):
   print "win"
+  sys.exit(0)
 else:
   print "failure"
+  sys.exit(2)
diff --git a/lib/baker/baker.py b/lib/baker/baker.py
index 023e757..5c3c026 100644
--- a/lib/baker/baker.py
+++ b/lib/baker/baker.py
@@ -111,8 +111,10 @@ def run_baker(X, R, S):
     S = extra points
   """
 
-  # calculate values only for the triangle
+  # calculate values only for the simplex triangle
   phi, qlin = qlinear(X, R)
+  if [i for i in phi if i <= 0.0]:
+    print "failure"
 
   if len(S.points) == 0:
     answer = {