agora/agora-test/Model/MultiSig.hs
2022-03-18 15:23:07 +01:00

145 lines
4.7 KiB
Haskell

module Model.MultiSig (plutarchTests, genTests) where
import Agora.MultiSig (MultiSig (..), validatedByMultisig)
import Apropos (Apropos (Apropos), Formula (ExactlyOne, Var, Yes), HasLogicalModel (..), HasParameterisedGenerator, LogicalModel (logic), parameterisedGenerator, runGeneratorTestsWhere, (:+))
import Apropos.Gen (Gen, choice, int, linear, list)
import Apropos.LogicalModel (Enumerable)
import Apropos.LogicalModel.Enumerable (Enumerable (enumerated))
import Apropos.Script (HasScriptRunner (expect, runScriptTestsWhere, script))
import Data.List (intersect)
import Plutarch (compile)
import Plutus.V1.Ledger.Api (
Script,
ScriptContext (scriptContextPurpose),
ScriptPurpose (Spending),
TxInfo (txInfoDCert, txInfoData, txInfoFee, txInfoId, txInfoInputs, txInfoMint, txInfoOutputs, txInfoValidRange, txInfoWdrl),
TxOutRef (TxOutRef),
scriptContextTxInfo,
txInfoSignatories,
)
import Plutus.V1.Ledger.Contexts (ScriptContext (ScriptContext), TxInfo (TxInfo))
import Plutus.V1.Ledger.Crypto (PubKeyHash)
import Plutus.V1.Ledger.Interval qualified as Interval
import Plutus.V1.Ledger.Value qualified as Value
import Test.Tasty (TestTree, testGroup)
import Test.Tasty.Hedgehog (fromGroup)
{-
1. Create proposition sum type.
2. Create logical model defining relationships between propositions.
3. Associating propositions with the "concrete" type i.e. MultiSig.
4. Create Generators.
5. Run tests (with magic).
-}
{-
1. Create a
Define a prop, as if it is the way a script can pass.
1. keys signed exceeds `minSigs`
2. `minSigs` is lte zero.
Props not passing:
1. No signatures present.
2. Signatures present is less than `minSigs`.
-}
data MultiSigModel = MultiSigModel
{ ms :: MultiSig
, ctx :: ScriptContext
}
deriving stock (Eq, Show)
data MultiSigProp
= MeetsMinSigs
| DoesNotMeetMinSigs
deriving stock (Eq, Show, Ord)
instance Enumerable MultiSigProp where
enumerated = [MeetsMinSigs, DoesNotMeetMinSigs]
instance LogicalModel MultiSigProp where
logic = ExactlyOne [Var MeetsMinSigs, Var DoesNotMeetMinSigs]
instance HasLogicalModel MultiSigProp MultiSigModel where
satisfiesProperty :: MultiSigProp -> MultiSigModel -> Bool
satisfiesProperty p m =
let minSigs = m.ms.minSigs
signatories = txInfoSignatories $ scriptContextTxInfo $ m.ctx
matchingSigs = intersect m.ms.keys signatories
in case p of
MeetsMinSigs -> length matchingSigs >= fromInteger minSigs
DoesNotMeetMinSigs -> length matchingSigs < fromInteger minSigs
contextWithSignatures :: [PubKeyHash] -> ScriptContext
contextWithSignatures sigs =
ScriptContext
{ scriptContextTxInfo =
TxInfo
{ txInfoInputs = []
, txInfoOutputs = []
, txInfoFee = Value.singleton "" "" 2
, txInfoMint = mempty
, txInfoDCert = []
, txInfoWdrl = []
, txInfoValidRange = Interval.always
, txInfoSignatories = sigs
, txInfoData = []
, txInfoId = "0b2086cbf8b6900f8cb65e012de4516cb66b5cb08a9aaba12a8b88be"
}
, scriptContextPurpose = Spending (TxOutRef "" 0)
}
genPK :: Gen PubKeyHash
genPK =
choice
[ pure "8a30896c4fd5e79843e4ca1bd2cdbaa36f8c0bc3be7401214142019c"
, pure "0b12051dd2da4b3629cebb92e2be111e0e99c63c04727ed55b74a296"
, pure "87f5f31e4d7437463cd901c4c9edb7a51903ac858661503e9d72f492"
, pure "f74ccaee8244264b3c73fce3b66bd2337de3db70efff4261d6ff145b"
]
instance HasParameterisedGenerator MultiSigProp MultiSigModel where
parameterisedGenerator s = do
expectedSignatures <- list (linear 1 4) genPK
minSigs <- toInteger <$> int (linear 1 (length expectedSignatures))
let msig = MultiSig expectedSignatures minSigs
actualSignaturesLength <-
if MeetsMinSigs `elem` s
then int (linear (fromInteger minSigs) (length expectedSignatures))
else pure 0
let actualSignatures = take actualSignaturesLength expectedSignatures
let ctx = contextWithSignatures actualSignatures
pure (MultiSigModel msig ctx)
instance HasScriptRunner MultiSigProp MultiSigModel where
expect :: (MultiSigModel :+ MultiSigProp) -> Formula MultiSigProp
expect Apropos = Var MeetsMinSigs
script :: (MultiSigModel :+ MultiSigProp) -> MultiSigModel -> Script
script Apropos msm =
compile $
pif
(validatedByMultisig msm.ms # pconstant msm.ctx.scriptContextTxInfo)
(pcon PUnit)
perror
genTests :: TestTree
genTests =
testGroup "genTests" $
fromGroup
<$> [ runGeneratorTestsWhere (Apropos :: MultiSigModel :+ MultiSigProp) "Generator" Yes
]
plutarchTests :: TestTree
plutarchTests =
testGroup "plutarchTests" $
fromGroup
<$> [ runScriptTestsWhere (Apropos :: MultiSigModel :+ MultiSigProp) "ScriptValid" Yes
]