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Gov.hs
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Gov.hs
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{-# LANGUAGE DataKinds #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE ImportQualifiedPost #-}
{-# LANGUAGE NamedFieldPuns #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE TypeApplications #-}
-- | Specs necessary to generate, environment, state, and signal
-- for the GOV rule
module Test.Cardano.Ledger.Constrained.Conway.Gov where
import Data.Foldable
import Data.Coerce
import Cardano.Ledger.BaseTypes
import Cardano.Ledger.Conway.Governance
import Cardano.Ledger.Conway.PParams
import Cardano.Ledger.Conway.Rules
import Data.Map qualified as Map
import Data.Set qualified as Set
import Lens.Micro
import Constrained
import Cardano.Ledger.Conway (ConwayEra)
import Cardano.Ledger.Conway.Core
import Cardano.Ledger.Crypto (StandardCrypto)
import Lens.Micro qualified as L
import Test.Cardano.Ledger.Constrained.Conway.Instances
import Test.Cardano.Ledger.Constrained.Conway.PParams
govEnvSpec ::
IsConwayUniv fn =>
Specification fn (GovEnv (ConwayEra StandardCrypto))
govEnvSpec = constrained $ \ge ->
match ge $ \_ _ pp _ _ ->
satisfies pp pparamsSpec
-- NOTE: it is probably OK not to check uniqueness of ids here, because a clash
-- is never going to be generated, and the real representation of `Proposals` doesn't
-- allow the id to appear twice.
govProposalsSpec ::
IsConwayUniv fn =>
GovEnv (ConwayEra StandardCrypto) ->
Specification fn (Proposals (ConwayEra StandardCrypto))
govProposalsSpec GovEnv {geEpoch, gePPolicy} =
constrained $ \props ->
match props $ \ppupTree hardForkTree committeeTree constitutionTree unorderedProposals ->
[ -- Protocol parameter updates
wellFormedChildren ppupTree
, allGASInTree ppupTree $ \gas ->
[ isCon @"ParameterChange" (pProcGovAction_ . gasProposalProcedure_ $ gas)
, onCon @"ParameterChange" (pProcGovAction_ . gasProposalProcedure_ $ gas) $
\_ ppup policy ->
[ wfPParamsUpdate ppup
, assert $ policy ==. lit gePPolicy
]
]
, forAll (snd_ ppupTree) (genHint treeGenHint)
, genHint listSizeHint (snd_ ppupTree)
, -- Hard forks
wellFormedChildren hardForkTree
, allGASInTree hardForkTree $ \gas ->
isCon @"HardForkInitiation" (pProcGovAction_ . gasProposalProcedure_ $ gas)
, allGASAndChildInTree hardForkTree $ \gas gas' ->
[ onHardFork gas $ \_ pv ->
onHardFork gas' $ \_ pv' ->
match pv $ \majV minV ->
match pv' $ \majV' minV' ->
[ assert $ majV <=. majV'
, ifElse
(majV ==. lit maxBound)
(majV' ==. majV)
(majV' <=. succV_ majV)
, ifElse
(majV ==. majV')
(minV' ==. minV + 1)
(minV' ==. 0)
, minV' `dependsOn` majV'
]
]
, forAll (snd_ hardForkTree) (genHint treeGenHint)
, genHint listSizeHint (snd_ hardForkTree)
, -- Committee
wellFormedChildren committeeTree
, -- TODO: it would be nice to have a trick like `isCon` that can
-- do disjunction without having to write down all the cases.
allGASInTree committeeTree $ \gas ->
caseOn
(pProcGovAction_ . gasProposalProcedure_ $ gas)
(branch $ \_ _ _ -> False)
(branch $ \_ _ -> False)
(branch $ \_ _ -> False)
(branch $ \_ -> True)
-- UpdateCommittee
( branch $ \_ _ added _ ->
forAll (rng_ added) $ \epoch ->
lit geEpoch <. epoch
)
(branch $ \_ _ -> False)
(branch $ \_ -> False)
, forAll (snd_ committeeTree) (genHint treeGenHint)
, genHint listSizeHint (snd_ committeeTree)
, -- Constitution
wellFormedChildren constitutionTree
, allGASInTree constitutionTree $ \gas ->
isCon @"NewConstitution" (pProcGovAction_ . gasProposalProcedure_ $ gas)
, forAll (snd_ constitutionTree) (genHint treeGenHint)
, genHint listSizeHint (snd_ constitutionTree)
, -- Withdrawals and info
forAll unorderedProposals $ \gas ->
caseOn
(pProcGovAction_ . gasProposalProcedure_ $ gas)
(branch $ \_ _ _ -> False)
(branch $ \_ _ -> False)
-- Treasury Withdrawal
( branch $ \withdrawMap policy ->
[ forAll (dom_ withdrawMap) $ \rewAcnt ->
match rewAcnt $ \net _ -> net ==. lit Testnet
, assert $ policy ==. lit gePPolicy
]
)
(branch $ \_ -> False)
(branch $ \_ _ _ _ -> False)
(branch $ \_ _ -> False)
-- Info
(branch $ \_ -> True)
, genHint listSizeHint unorderedProposals
]
where
treeGenHint = (Just 2, 10)
listSizeHint = 5
allGASInTree ::
(IsConwayUniv fn, IsPred p fn) =>
Term fn ProposalTree ->
(Term fn (GovActionState (ConwayEra StandardCrypto)) -> p) ->
Pred fn
allGASInTree t k =
forAll (snd_ t) $ \t' ->
forAll' t' $ \gas _ ->
k gas
allGASAndChildInTree ::
(IsConwayUniv fn, IsPred p fn) =>
Term fn ProposalTree ->
( Term fn (GovActionState (ConwayEra StandardCrypto)) ->
Term fn (GovActionState (ConwayEra StandardCrypto)) ->
p
) ->
Pred fn
allGASAndChildInTree t k =
forAll (snd_ t) $ \t' ->
forAll' t' $ \gas cs ->
forAll cs $ \t'' ->
k gas (rootLabel_ t'')
wellFormedChildren ::
IsConwayUniv fn =>
Term fn ProposalTree ->
Pred fn
wellFormedChildren rootAndTrees =
match rootAndTrees $ \root' trees ->
[ forAll trees $ \t ->
[ -- Every node just below the root has the root as its parent
withPrevActId (rootLabel_ t) (assert . (==. root'))
, -- Every node's children have the id of the node as its parent
forAll' t $ \gas children ->
[ forAll children $ \t' ->
[ withPrevActId (rootLabel_ t') (assert . (==. cSJust_ (gasId_ gas)))
-- TODO: figure out why this causes a crash!
-- , t' `dependsOn` gas
]
, children `dependsOn` gas
]
]
]
withPrevActId ::
IsConwayUniv fn =>
Term fn (GovActionState (ConwayEra StandardCrypto)) ->
(Term fn (StrictMaybe (GovActionId StandardCrypto)) -> Pred fn) ->
Pred fn
withPrevActId gas k =
caseOn
(pProcGovAction_ . gasProposalProcedure_ $ gas)
( branch $ \mPrevActionId _ _ ->
caseOn
mPrevActionId
(branch $ \_ -> k cSNothing_)
(branch $ \i -> k (cSJust_ $ toGeneric_ i))
)
( branch $ \mPrevActionId _ ->
caseOn
mPrevActionId
(branch $ \_ -> k cSNothing_)
(branch $ \i -> k (cSJust_ $ toGeneric_ i))
)
(branch $ \_ _ -> True)
-- NoConfidence
-- !(StrictMaybe (PrevGovActionId 'CommitteePurpose (EraCrypto era)))
( branch $ \mPrevActionId ->
caseOn
mPrevActionId
(branch $ \_ -> k cSNothing_)
(branch $ \i -> k (cSJust_ $ toGeneric_ i))
)
-- UpdateCommittee
-- !(StrictMaybe (PrevGovActionId 'CommitteePurpose (EraCrypto era)))
-- !(Set (Credential 'ColdCommitteeRole (EraCrypto era)))
-- !(Map (Credential 'ColdCommitteeRole (EraCrypto era)) EpochNo)
-- !UnitInterval
( branch $ \mPrevActionId _ _ _ ->
caseOn
mPrevActionId
(branch $ \_ -> k cSNothing_)
(branch $ \i -> k (cSJust_ $ toGeneric_ i))
)
-- NewConstitution
-- !(StrictMaybe (PrevGovActionId 'ConstitutionPurpose (EraCrypto era)))
-- !(Constitution era)
( branch $ \mPrevActionId _ ->
caseOn
mPrevActionId
(branch $ \_ -> k cSNothing_)
(branch $ \i -> k (cSJust_ $ toGeneric_ i))
)
-- InfoAction
(branch $ \_ -> True)
onHardFork ::
(IsConwayUniv fn, IsPred p fn) =>
Term fn (GovActionState (ConwayEra StandardCrypto)) ->
( Term fn (StrictMaybe (GovPurposeId 'HardForkPurpose (ConwayEra StandardCrypto))) ->
Term fn ProtVer ->
p
) ->
Pred fn
onHardFork gas k = onCon @"HardForkInitiation" (pProcGovAction_ . gasProposalProcedure_ $ gas) k
govProceduresSpec ::
IsConwayUniv fn =>
GovEnv (ConwayEra StandardCrypto) ->
Proposals (ConwayEra StandardCrypto) ->
Specification fn (GovProcedures (ConwayEra StandardCrypto))
govProceduresSpec ge@GovEnv {..} ps =
let actions f =
[ gid
| (gid, act) <- Map.toList $ proposalsActionsMap ps
, geEpoch <= act ^. gasExpiresAfterL
, f (gasAction act)
]
committeeVotableActionIds =
actions (isCommitteeVotingAllowed geCommitteeState)
drepVotableActionIds =
actions isDRepVotingAllowed
stakepoolVotableActionIds =
actions isStakePoolVotingAllowed
in constrained $ \govProcs ->
match govProcs $ \votingProcs proposalProcs ->
[ match votingProcs $ \votingProcsMap ->
forAll votingProcsMap $ \kvp ->
match kvp $ \voter mapActVote ->
(caseOn voter)
( branch $ \_c ->
subset_ (dom_ mapActVote) (lit $ Set.fromList committeeVotableActionIds)
)
( branch $ \_c ->
subset_ (dom_ mapActVote) (lit $ Set.fromList drepVotableActionIds)
)
( branch $ \_c ->
subset_ (dom_ mapActVote) (lit $ Set.fromList stakepoolVotableActionIds)
)
, forAll proposalProcs $ \proc ->
match proc $ \deposit returnAddr govAction _ ->
[ assert $ deposit ==. lit (gePParams ^. ppGovActionDepositL)
, match returnAddr $ \net _cred ->
net ==. lit Testnet
, wfGovAction ge ps govAction
]
]
wfGovAction ::
IsConwayUniv fn =>
GovEnv (ConwayEra StandardCrypto) ->
Proposals (ConwayEra StandardCrypto) ->
Term fn (GovAction (ConwayEra StandardCrypto)) ->
Pred fn
wfGovAction GovEnv {gePPolicy, geEpoch, gePParams} ps govAction =
caseOn
govAction
-- ParameterChange
( branch $ \mPrevActionId ppUpdate policy ->
[ assert $ mPrevActionId `elem_` lit ppupIds
, wfPParamsUpdate ppUpdate
, assert $ policy ==. lit gePPolicy
]
)
-- HardForkInitiation
( branch $ \mPrevActionId protVer ->
[ assert $ mPrevActionId `elem_` lit hardForkIds
, match protVer $ \majorVersion minorVersion ->
reify' mPrevActionId hfIdMajorVer $ \currentMajorVersion mSuccMajorVersion ->
reify mPrevActionId hfIdMinorVer $ \currentMinorVersion ->
caseOn
mSuccMajorVersion
( branch $ \_ ->
[ majorVersion ==. currentMajorVersion
, minorVersion ==. currentMinorVersion + 1
]
)
( branch $ \majorVersion' ->
[ assert $ majorVersion `member_` (singleton_ currentMajorVersion <> singleton_ majorVersion')
, ifElse
(currentMajorVersion <. majorVersion)
(minorVersion ==. 0)
(minorVersion ==. currentMinorVersion + 1)
]
)
]
)
-- TreasuryWithdrawals
( branch $ \withdrawMap policy ->
[ forAll (dom_ withdrawMap) $ \rewAcnt ->
match rewAcnt $ \net _ -> net ==. lit Testnet
, assert $ policy ==. lit gePPolicy
]
)
-- NoConfidence
( branch $ \mPrevActionId -> mPrevActionId `elem_` lit committeeIds
)
-- UpdateCommittee
( branch $ \mPrevActionId _removed added _quorum ->
[ assert $ mPrevActionId `elem_` lit committeeIds
, forAll (rng_ added) $ \epoch ->
lit geEpoch <. epoch
]
)
-- NewConstitution
(branch $ \mPrevActionId _c -> mPrevActionId `elem_` lit constitutionIds)
-- InfoAction
(branch $ \_ -> True)
where
prevGovActionIds = ps ^. pRootsL . L.to toPrevGovActionIds
constitutionIds =
(prevGovActionIds ^. grConstitutionL)
: [ SJust $ coerce $ gasId gas
| gas <- actions
, NewConstitution {} <- [pProcGovAction $ gasProposalProcedure gas]
]
committeeIds =
(prevGovActionIds ^. grCommitteeL)
: [ SJust $ coerce $ gasId gas
| gas <- actions
, isCommitteeAction (pProcGovAction $ gasProposalProcedure gas)
]
ppupIds =
(prevGovActionIds ^. grPParamUpdateL)
: [ SJust $ coerce $ gasId gas
| gas <- actions
, ParameterChange {} <- [pProcGovAction $ gasProposalProcedure gas]
]
hardForkIds =
(prevGovActionIds ^. grHardForkL)
: [ SJust $ coerce $ gasId gas
| gas <- actions
, HardForkInitiation {} <- [pProcGovAction $ gasProposalProcedure gas]
]
isCommitteeAction UpdateCommittee {} = True
isCommitteeAction NoConfidence {} = True
isCommitteeAction _ = False
findProtVer SNothing = gePParams ^. ppProtocolVersionL
findProtVer (SJust hid) =
case proposalsLookupId hid ps of
Just gas
| HardForkInitiation _ protVer <- pProcGovAction $ gasProposalProcedure gas -> protVer
_ -> gePParams ^. ppProtocolVersionL
hfIdMajorVer mId =
let ProtVer currentMajorVersion _ = findProtVer (coerce mId)
in (currentMajorVersion, succVersion @Maybe currentMajorVersion)
hfIdMinorVer mId =
let ProtVer _ currentMinorVersion = findProtVer (coerce mId)
in currentMinorVersion
actions = toList $ proposalsActions ps
wfPParamsUpdate ::
IsConwayUniv fn =>
Term fn (PParamsUpdate (ConwayEra StandardCrypto)) ->
Pred fn
wfPParamsUpdate ppu =
toPred
[ assert $ ppu /=. lit emptyPParamsUpdate
, match ppu $
\_cppMinFeeA
_cppMinFeeB
cppMaxBBSize
cppMaxTxSize
cppMaxBHSize
_cppKeyDeposit
cppPoolDeposit
_cppEMax
_cppNOpt
_cppA0
_cppRho
_cppTau
_cppProtocolVersion
_cppMinPoolCost
_cppCoinsPerUTxOByte
cppCostModels
_cppPrices
_cppMaxTxExUnits
_cppMaxBlockExUnits
cppMaxValSize
cppCollateralPercentage
_cppMaxCollateralInputs
_cppPoolVotingThresholds
_cppDRepVotingThresholds
_cppCommitteeMinSize
cppCommitteeMaxTermLength
cppGovActionLifetime
cppGovActionDeposit
cppDRepDeposit
_cppDRepActivity
_cppMinFeeRefScriptCoinsPerByte ->
[ cppMaxBBSize /=. lit (THKD $ SJust 0)
, cppMaxTxSize /=. lit (THKD $ SJust 0)
, cppMaxBHSize /=. lit (THKD $ SJust 0)
, cppMaxValSize /=. lit (THKD $ SJust 0)
, cppCollateralPercentage /=. lit (THKD $ SJust 0)
, cppCommitteeMaxTermLength /=. lit (THKD $ SJust $ EpochInterval 0)
, cppGovActionLifetime /=. lit (THKD $ SJust $ EpochInterval 0)
, cppPoolDeposit /=. lit (THKD $ SJust mempty)
, cppGovActionDeposit /=. lit (THKD $ SJust mempty)
, cppDRepDeposit /=. lit (THKD $ SJust mempty)
, cppCostModels ==. lit (THKD SNothing) -- NOTE: this is because the cost
-- model generator is way too slow
]
]