Test the encoding and decoding

test/Test/Data/Buuka.hs

@@ -0,0 +1,49 @@
+module Test.Data.Buuka where
+
+import Hedgehog
+import qualified Hedgehog.Gen as Gen
+import qualified Hedgehog.Range as Range
+import Test.Tasty
+import Test.Tasty.Hedgehog
+
+import qualified Data.Aeson as A
+
+import Data.List
+       (intercalate)
+import qualified Data.Foldable as F
+
+import Data.Buuka
+
+genUrl :: Gen URL
+genUrl = URL . concat <$> sequence go
+  where
+    go = [ Gen.element protocols, Gen.element domains, Gen.element tlds, pure "/", genPath ]
+    protocols = ["http://", "https://"]
+    domains = ["example", "foo", "bar"]
+    tlds = ["com", "fi", "org", "net", "info"]
+    genPath = intercalate "/" <$> Gen.list (Range.linear 0 10) (Gen.element paths)
+    paths = ["foo", "bar", "asd", "xyzzy"]
+
+genBuukaEntry :: Gen BuukaEntry
+genBuukaEntry = BuukaEntry <$> genUrl <*> genTitle
+  where
+    genTitle = Gen.maybe (Gen.string (Range.linear 0 10) Gen.unicode)
+
+genBuuka :: Gen Buuka
+genBuuka = F.foldl' (flip insert) mempty <$> Gen.list (Range.linear 0 10) genBuukaEntry
+
+prop_buukaentry_encode_decode :: Property
+prop_buukaentry_encode_decode = property $ do
+  x <- forAll genBuukaEntry
+  tripping x A.encode A.eitherDecode
+
+prop_buuka_encode_decode :: Property
+prop_buuka_encode_decode = property $ do
+  x <- forAll genBuuka
+  tripping x A.encode A.eitherDecode
+
+tests :: TestTree
+tests = testGroup "Data.Buuka"
+  [ testProperty "Entries can be encoded and decoded" prop_buukaentry_encode_decode
+  , testProperty "Entire set can be encoded and decoded" prop_buuka_encode_decode
+  ]