JSON encoding/decoding

test/Spec.hs

@@ -26,6 +26,7 @@ import Control.Monad (when)
 import System.Exit (exitFailure)
 import Test.HUnit (errors, failures, runTestTT, Test(TestList))
 
+import qualified Spec.JSON as JSON
 import qualified Spec.NewPWData as NewPWData
 import qualified Spec.NewPWDatabase as NewPWDatabase
 import qualified Spec.NewPWPolicy as NewPWPolicy
@@ -57,6 +58,7 @@ tests = TestList
   , PWSetService.tests
   , PWGetService.tests
   , PWSearch.tests
+  , JSON.tests
   ]
 
 --jl

test/Spec/JSON.hs

@@ -0,0 +1,55 @@
+{-
+
+passman
+Copyright (C) 2018 Jonathan Lamothe
+<jlamothe1980@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as
+published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this program.  If not, see
+<https://www.gnu.org/licenses/>.
+
+-}
+
+module Spec.JSON (tests) where
+
+import Data.Aeson (eitherDecode, encode, decode)
+import qualified Data.ByteString.Lazy as B
+import qualified Data.Map as M
+import System.Random (mkStdGen)
+import Test.HUnit (Test (..), (~?=))
+
+import Password
+
+tests = TestLabel "JSON" $ TestList [success, failure]
+
+success = TestLabel "succeasful encoding/decoding" $
+  eitherDecode (encode db) ~?= Right db
+
+failure = TestLabel "decoding failure" $
+  (decode B.empty :: Maybe PWDatabase) ~?= Nothing
+
+db = M.fromList
+  [ ( "foo", foo )
+  , ( "bar", bar )
+  , ( "baz", baz )
+  ]
+
+(foo, g') = newPWData g
+
+(bar, g'') = newPWData g'
+
+(baz, _) = newPWData g''
+
+g = mkStdGen 1
+
+--jl