X-Git-Url: https://gitweb.michael.orlitzky.com/?a=blobdiff_plain;f=src%2FFunctionValues.hs;fp=src%2FFunctionValues.hs;h=00bb0a828d3072f3d4d4b2cdc51c8c4e2ccd2549;hb=1f20ae355d28b53fc2e1e31c4bd131e9ede00a87;hp=895f9253a42506398c5594a3bd8b864baa32099a;hpb=dd58892d526586bc436b88d18a54b954be032761;p=spline3.git

diff --git a/src/FunctionValues.hs b/src/FunctionValues.hs
index 895f925..00bb0a8 100644
--- a/src/FunctionValues.hs
+++ b/src/FunctionValues.hs
@@ -1,12 +1,25 @@
 -- | The FunctionValues module contains the 'FunctionValues' type and
 --   the functions used to manipulate it.
-module FunctionValues
+module FunctionValues (
+  FunctionValues,
+  empty_values,
+  eval,
+  make_values,
+  rotate,
+  function_values_tests,
+  value_at
+  )
 where
 
 import Prelude hiding (LT)
+import Test.HUnit
+import Test.Framework (Test, testGroup)
+import Test.Framework.Providers.HUnit (testCase)
 import Test.QuickCheck (Arbitrary(..), choose)
 
-import Cardinal
+import Assertions (assertTrue)
+import Cardinal ( Cardinal(..) )
+import Examples (trilinear)
 import Values (Values3D, dims, idx)
 
 -- | The FunctionValues type represents the value of our function f at
@@ -258,3 +271,46 @@ rotate rotation fv =
                      back_right_down = eval fv (rotation BRD),
                      back_right_top = eval fv (rotation BRT),
                      interior = interior fv }
+
+
+
+-- | Ensure that the trilinear values wind up where we think they
+--   should.
+test_directions :: Assertion
+test_directions =
+    assertTrue "all direction functions work" (and equalities)
+        where
+          fvs = make_values trilinear 1 1 1
+          equalities = [ interior fvs == 4,
+                         front fvs == 1,
+                         back  fvs == 7,
+                         left  fvs == 2,
+                         right fvs == 6,
+                         down  fvs == 3,
+                         top   fvs == 5,
+                         front_left fvs == 1,
+                         front_right fvs == 1,
+                         front_down fvs == 1,
+                         front_top fvs == 1,
+                         back_left fvs == 3,
+                         back_right fvs == 11,
+                         back_down fvs == 5,
+                         back_top fvs == 9,
+                         left_down fvs == 2,
+                         left_top fvs == 2,
+                         right_down fvs == 4,
+                         right_top fvs == 8,
+                         front_left_down fvs == 1,
+                         front_left_top fvs == 1,
+                         front_right_down fvs == 1,
+                         front_right_top fvs == 1,
+                         back_left_down fvs == 3,
+                         back_left_top fvs == 3,
+                         back_right_down fvs == 7,
+                         back_right_top fvs == 15]
+
+
+function_values_tests :: Test.Framework.Test
+function_values_tests =
+    testGroup "FunctionValues Tests"
+                  [ testCase "test directions" test_directions ]