hjugement-protocol/tests/HUnit/Election.hs

   1 {-# LANGUAGE AllowAmbiguousTypes #-}
   2 {-# LANGUAGE DataKinds #-}
   3 {-# LANGUAGE OverloadedStrings #-}
   4 {-# LANGUAGE PatternSynonyms #-}
   5 module HUnit.Election where
   6
   7 import Test.Tasty.HUnit
   8 import qualified Data.List as List
   9 import qualified System.Random as Random
  10
  11 import Voting.Protocol
  12
  13 import Utils
  14
  15 hunit :: TestTree
  16 hunit = testGroup "Election"
  17  [ testGroup "groupGenInverses"
  18          [ testCase "WeakParams" $
  19                 List.take 10 (groupGenInverses @WeakParams) @?=
  20                         [groupGen^neg (fromNatural n) | n <- [0..9]]
  21          , testCase "BeleniosParams" $
  22                 List.take 10 (groupGenInverses @BeleniosParams) @?=
  23                         [groupGen^neg (fromNatural n) | n <- [0..9]]
  24          ]
  25  , testGroup "encryptBallot" $
  26          [ testsEncryptBallot @WeakParams
  27          , testsEncryptBallot @BeleniosParams
  28          ]
  29  ]
  30
  31 testsEncryptBallot :: forall q. Params q => TestTree
  32 testsEncryptBallot =
  33         testGroup (paramsName @q)
  34          [ testEncryptBallot @q 0
  35                  [Question "q1" ["a1","a2","a3"] zero one]
  36                  [[True, False, False]]
  37                  (Right True)
  38          , testEncryptBallot @q 0
  39                  [Question "q1" ["a1","a2","a3"] zero one]
  40                  [[False, False, False]]
  41                  (Right True)
  42          , testEncryptBallot @q 0
  43                  [Question "q1" ["a1","a2","a3"] zero one]
  44                  [[False, False, False]]
  45                  (Right True)
  46          , testEncryptBallot @q 0
  47                  [Question "q1" [] zero one]
  48                  []
  49                  (Left (ErrorBallot_WrongNumberOfAnswers 0 1))
  50          , testEncryptBallot @q 0
  51                  [Question "q1" ["a1","a2"] one one]
  52                  [[True]]
  53                  (Left (ErrorBallot_Answer (ErrorAnswer_WrongNumberOfOpinions 1 2)))
  54          , testEncryptBallot @q 0
  55                  [Question "q1" ["a1","a2","a3"] zero one]
  56                  [[True, True, False]]
  57                  (Left (ErrorBallot_Answer (ErrorAnswer_WrongSumOfOpinions 2 0 1)))
  58          , testEncryptBallot @q 0
  59                  [Question "q1" ["a1","a2","a3"] one one]
  60                  [[False, False, False]]
  61                  (Left (ErrorBallot_Answer (ErrorAnswer_WrongSumOfOpinions 0 1 1)))
  62          , testEncryptBallot @q 0
  63                  [Question "q1" ["a1","a2"] one one]
  64                  [[False, False, True]]
  65                  (Left (ErrorBallot_Answer (ErrorAnswer_WrongNumberOfOpinions 3 2)))
  66          , testEncryptBallot @q 0
  67                  [ Question "q1" ["a11","a12","a13"] zero (one+one)
  68                  , Question "q2" ["a21","a22","a23"] one one
  69                  ]
  70                  [ [True, False, True]
  71                  , [False, True, False] ]
  72                  (Right True)
  73          ]
  74
  75 testEncryptBallot ::
  76  forall q. SubGroup q =>
  77  Int -> [Question q] -> [[Bool]] ->
  78  Either ErrorBallot Bool ->
  79  TestTree
  80 testEncryptBallot seed quests opins exp =
  81         let got =
  82                 runExcept $
  83                 (`evalStateT` Random.mkStdGen seed) $ do
  84                         uuid <- randomUUID
  85                         cred <- randomCredential
  86                         let ballotSecKey = credentialSecretKey @q uuid cred
  87                         elecPubKey <- publicKey <$> randomSecretKey
  88                         let elec = Election
  89                                  { election_name        = "election"
  90                                  , election_description = "description"
  91                                  , election_PublicKey   = elecPubKey
  92                                  , election_questions   = quests
  93                                  , election_uuid        = uuid
  94                                  , election_hash        = Hash "" -- FIXME: when implemented
  95                                  }
  96                         verifyBallot elec
  97                          <$> encryptBallot elec (Just ballotSecKey) opins
  98         in
  99         testCase (show opins) $
 100                 got @?= exp