Tests for Data.Time.Asctime

[time-http.git] / Test / Time / HTTP.hs

diff --git a/Test/Time/HTTP.hs b/Test/Time/HTTP.hs
index 97c5da85f429b954ed5ae4b74c831dac48212779..bb60928a75da1497e8c74fee3dc4c08bb231bd38 100644 (file)
--- a/Test/Time/HTTP.hs
+++ b/Test/Time/HTTP.hs
@@ -1,8 +1,15 @@
 {-# LANGUAGE
-    UnicodeSyntax
+    OverloadedStrings
+  , UnicodeSyntax
+  , ViewPatterns
   #-}
 module Main (main) where
+import Control.Applicative
+import Control.Applicative.Unicode
+import Data.Time
+import qualified Data.Time.Asctime as Asctime
 import System.Exit
+import Prelude.Unicode
 import Test.QuickCheck
 
 main ∷ IO ()
@@ -17,6 +24,24 @@ runTest prop
            Failure {}           → exitFailure
            NoExpectedFailure {} → exitFailure
 
+instance Arbitrary Day where
+    arbitrary = ModifiedJulianDay <$> arbitrary
+
+instance Arbitrary TimeOfDay where
+    arbitrary
+        = do h ← choose (0, 23)
+             m ← choose (0, 59)
+             s ← choose (0, 60)
+             return $ TimeOfDay h m (fromIntegral (s ∷ Int))
+
+instance Arbitrary LocalTime where
+    arbitrary = LocalTime <$> arbitrary ⊛ arbitrary
+
 tests ∷ [Property]
-tests = [
+tests = [ -- Asctime
+          property ( Asctime.fromAscii "Sun Nov  6 08:49:37 1994"
+                     ≡ Right (LocalTime (ModifiedJulianDay 49662) (TimeOfDay 8 49 37)) )
+        , property ( Asctime.toAscii (LocalTime (ModifiedJulianDay 49662) (TimeOfDay 8 49 37))
+                     ≡ "Sun Nov  6 08:49:37 1994" )
+        , property $ \lt → Right lt ≡ Asctime.fromAscii (Asctime.toAscii lt)
         ]