where
import Data.Maybe (fromJust)
-import Test.HUnit
-import Test.QuickCheck
+
+import Test.HUnit (assertEqual)
+import Test.Framework (Test, testGroup)
+import Test.Framework.Providers.HUnit (testCase)
+
+import Test.QuickCheck (Arbitrary(..), Gen)
import Bit as B
import Maskable
apply_mask oct _ _ = oct
+instance Ord Octet where
+ (Octet x1 x2 x3 x4 x5 x6 x7 x8) <= (Octet y1 y2 y3 y4 y5 y6 y7 y8)
+ | x1 > y1 = False
+ | x2 > y2 = False
+ | x3 > y3 = False
+ | x4 > y4 = False
+ | x5 > y5 = False
+ | x6 > y6 = False
+ | x7 > y7 = False
+ | x8 > y8 = False
+ | otherwise = True
+
+
+instance Bounded Octet where
+ -- | The octet with the least possible value.
+ minBound =
+ Octet B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero
+
+ -- | The octet with the greatest possible value.
+ maxBound =
+ Octet B.One B.One B.One B.One B.One B.One B.One B.One
+
+
+instance Enum Octet where
+ -- We're supposed to throw a runtime error if you call (succ
+ -- maxBound), so the fromJust here doesn't introduce any additional
+ -- badness.
+ toEnum = fromJust . octet_from_int
+ fromEnum = octet_to_int
+
-- | Convert each bit to its integer value, and multiply by the
-- appropriate power of two. Sum them up, and we should get an integer
-- between 0 and 255.
x:_ -> octet_from_int (fst x)
--- | The octet with the least possible value.
-min_octet :: Octet
-min_octet =
- Octet B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero
-
-
--- | The octet with the greatest possible value.
-max_octet :: Octet
-max_octet =
- Octet B.One B.One B.One B.One B.One B.One B.One B.One
-
-
-- HUnit Tests
test_octet_from_int1 :: Test
test_octet_from_int1 =
- TestCase $ assertEqual "octet_from_int 128 should parse as 10000000" oct1 oct2
+ testCase desc $ assertEqual desc oct1 oct2
where
+ desc = "octet_from_int 128 should parse as 10000000"
oct1 = Octet B.One B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero
oct2 = fromJust $ octet_from_int 128
test_octet_mask1 :: Test
test_octet_mask1 =
- TestCase $
- assertEqual
- "The network bits of 255/4 should equal 240"
- oct2
- (apply_mask oct1 Four B.Zero)
+ testCase desc $
+ assertEqual desc oct2 (apply_mask oct1 Four B.Zero)
where
+ desc = "The network bits of 255/4 should equal 240"
oct1 = fromJust $ octet_from_int 255
oct2 = fromJust $ octet_from_int 240
test_octet_mask2 :: Test
test_octet_mask2 =
- TestCase $
- assertEqual
- "The network bits of 255/1 should equal 128"
- oct2
- (apply_mask oct1 Maskbits.One B.Zero)
+ testCase desc $
+ assertEqual desc oct2 (apply_mask oct1 Maskbits.One B.Zero)
where
+ desc = "The network bits of 255/1 should equal 128"
oct1 = fromJust $ octet_from_int 255
oct2 = fromJust $ octet_from_int 128
-octet_tests :: [Test]
+octet_tests :: Test
octet_tests =
- [ test_octet_from_int1,
+ testGroup "Octet Tests" [
+ test_octet_from_int1,
test_octet_mask1,
test_octet_mask2 ]