Import explicitly in Assertions.hs.

[spline3.git] / src / Assertions.hs

diff --git a/src/Assertions.hs b/src/Assertions.hs
index 8efd12340b04408c6e5916271d01c25977e368a3..b2ec7c15ef70fee0ad4b9c189ce9249b4c33b7f8 100644 (file)
--- a/src/Assertions.hs
+++ b/src/Assertions.hs
@@ -1,26 +1,35 @@
+-- | The Assertions module contains assertions for use in HUnit
+--   tests. They primarily fill the need for an equality test that
+--   works with floating point numbers.
 module Assertions
 where
 
 import Control.Monad (unless)
-import Test.HUnit
+import Test.HUnit (Assertion,
+                   assertBool,
+                   assertFailure)
 
-import Comparisons
-import Point
+import Comparisons ((~=))
+import Point (Point, is_close)
 
 -- | An HUnit assertion that wraps the almost_equals function. Stolen
---   from the definition of assertEqual in Test/HUnit/Base.hs.
+--   from the definition of 'assertEqual' in Test\/HUnit\/Base.hs.
 assertAlmostEqual :: String -> Double -> Double -> Assertion
 assertAlmostEqual preface expected actual =
   unless (actual ~= expected) (assertFailure msg)
- where msg = (if null preface then "" else preface ++ "\n") ++
-             "expected: " ++ show expected ++ "\n but got: " ++ show actual
+    where msg = (if null preface then "" else preface ++ "\n") ++
+                "expected: " ++ show expected ++ "\n but got: " ++ show actual
 
 
 -- | An HUnit assertion that wraps the is_close function. Stolen
---   from the definition of assertEqual in Test/HUnit/Base.hs.
+--   from the definition of 'assertEqual' in Test\/HUnit\/Base.hs.
 assertClose :: String -> Point -> Point -> Assertion
 assertClose preface expected actual =
   unless (actual `is_close` expected) (assertFailure msg)
- where msg = (if null preface then "" else preface ++ "\n") ++
-             "expected: " ++ show expected ++ "\n but got: " ++ show actual
+    where msg = (if null preface then "" else preface ++ "\n") ++
+                "expected: " ++ show expected ++ "\n but got: " ++ show actual
 
+
+-- | It's asinine that this doesn't exist already.
+assertTrue :: String -> Bool -> Assertion
+assertTrue = assertBool