mirror of
https://github.com/FiloSpaTeam/plutus-pioneer-program.git
synced 2024-11-25 00:02:18 +01:00
222 lines
8.3 KiB
Haskell
222 lines
8.3 KiB
Haskell
{-# LANGUAGE DataKinds #-}
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{-# LANGUAGE DeriveAnyClass #-}
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{-# LANGUAGE DeriveGeneric #-}
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{-# LANGUAGE FlexibleContexts #-}
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{-# LANGUAGE FlexibleInstances #-}
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{-# LANGUAGE GADTs #-}
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{-# LANGUAGE MultiParamTypeClasses #-}
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{-# LANGUAGE NumericUnderscores #-}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE ScopedTypeVariables #-}
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{-# LANGUAGE StandaloneDeriving #-}
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{-# LANGUAGE TemplateHaskell #-}
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{-# LANGUAGE TypeApplications #-}
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{-# LANGUAGE TypeFamilies #-}
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{-# LANGUAGE TypeOperators #-}
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module Spec.Model
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( tests
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, test
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, TSModel (..)
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) where
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import Control.Lens hiding (elements)
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import Control.Monad (void, when)
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import Data.Map (Map)
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import qualified Data.Map as Map
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import Data.Maybe (isJust, isNothing)
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import Data.Monoid (Last (..))
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import Data.String (IsString (..))
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import Data.Text (Text)
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import Plutus.Contract.Test
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import Plutus.Contract.Test.ContractModel
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import Plutus.Trace.Emulator
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import Ledger hiding (singleton)
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import Ledger.Ada as Ada
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import Ledger.Value
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import Test.QuickCheck
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import Test.Tasty
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import Test.Tasty.QuickCheck
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import Week08.TokenSale (TokenSale (..), TSStartSchema', TSUseSchema, startEndpoint', useEndpoints, nftName)
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data TSState = TSState
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{ _tssPrice :: !Integer
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, _tssLovelace :: !Integer
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, _tssToken :: !Integer
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} deriving Show
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makeLenses ''TSState
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newtype TSModel = TSModel {_tsModel :: Map Wallet TSState}
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deriving Show
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makeLenses ''TSModel
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tests :: TestTree
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tests = testProperty "token sale model" prop_TS
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instance ContractModel TSModel where
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data Action TSModel =
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Start Wallet
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| SetPrice Wallet Wallet Integer
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| AddTokens Wallet Wallet Integer
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| Withdraw Wallet Wallet Integer Integer
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| BuyTokens Wallet Wallet Integer
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deriving (Show, Eq)
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data ContractInstanceKey TSModel w s e where
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StartKey :: Wallet -> ContractInstanceKey TSModel (Last TokenSale) TSStartSchema' Text
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UseKey :: Wallet -> Wallet -> ContractInstanceKey TSModel () TSUseSchema Text
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instanceTag key _ = fromString $ "instance tag for: " ++ show key
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arbitraryAction _ = oneof $
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(Start <$> genWallet) :
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[ SetPrice <$> genWallet <*> genWallet <*> genNonNeg ] ++
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[ AddTokens <$> genWallet <*> genWallet <*> genNonNeg ] ++
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[ BuyTokens <$> genWallet <*> genWallet <*> genNonNeg ] ++
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[ Withdraw <$> genWallet <*> genWallet <*> genNonNeg <*> genNonNeg ]
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initialState = TSModel Map.empty
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nextState (Start w) = do
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withdraw w $ nfts Map.! w
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(tsModel . at w) $= Just (TSState 0 0 0)
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wait 1
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nextState (SetPrice v w p) = do
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when (v == w) $
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(tsModel . ix v . tssPrice) $= p
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wait 1
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nextState (AddTokens v w n) = do
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started <- hasStarted v -- has the token sale started?
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when (n > 0 && started) $ do
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bc <- askModelState $ view $ balanceChange w
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let token = tokens Map.! v
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when (tokenAmt + assetClassValueOf bc token >= n) $ do -- does the wallet have the tokens to give?
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withdraw w $ assetClassValue token n
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(tsModel . ix v . tssToken) $~ (+ n)
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wait 1
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nextState (BuyTokens v w n) = do
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when (n > 0) $ do
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m <- getTSState v
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case m of
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Just t
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| t ^. tssToken >= n -> do
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let p = t ^. tssPrice
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l = p * n
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withdraw w $ lovelaceValueOf l
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deposit w $ assetClassValue (tokens Map.! v) n
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(tsModel . ix v . tssLovelace) $~ (+ l)
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(tsModel . ix v . tssToken) $~ (+ (- n))
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_ -> return ()
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wait 1
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nextState (Withdraw v w n l) = do
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when (v == w) $ do
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m <- getTSState v
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case m of
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Just t
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| t ^. tssToken >= n && t ^. tssLovelace >= l -> do
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deposit w $ lovelaceValueOf l <> assetClassValue (tokens Map.! w) n
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(tsModel . ix v . tssLovelace) $~ (+ (- l))
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(tsModel . ix v . tssToken) $~ (+ (- n))
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_ -> return ()
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wait 1
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perform h _ cmd = case cmd of
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(Start w) -> callEndpoint @"start" (h $ StartKey w) (nftCurrencies Map.! w, tokenCurrencies Map.! w, tokenNames Map.! w) >> delay 1
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(SetPrice v w p) -> callEndpoint @"set price" (h $ UseKey v w) p >> delay 1
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(AddTokens v w n) -> callEndpoint @"add tokens" (h $ UseKey v w) n >> delay 1
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(BuyTokens v w n) -> callEndpoint @"buy tokens" (h $ UseKey v w) n >> delay 1
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(Withdraw v w n l) -> callEndpoint @"withdraw" (h $ UseKey v w) (n, l) >> delay 1
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precondition s (Start w) = isNothing $ getTSState' s w
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precondition s (SetPrice v _ _) = isJust $ getTSState' s v
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precondition s (AddTokens v _ _) = isJust $ getTSState' s v
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precondition s (BuyTokens v _ _) = isJust $ getTSState' s v
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precondition s (Withdraw v _ _ _) = isJust $ getTSState' s v
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deriving instance Eq (ContractInstanceKey TSModel w s e)
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deriving instance Show (ContractInstanceKey TSModel w s e)
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getTSState' :: ModelState TSModel -> Wallet -> Maybe TSState
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getTSState' s v = s ^. contractState . tsModel . at v
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getTSState :: Wallet -> Spec TSModel (Maybe TSState)
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getTSState v = do
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s <- getModelState
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return $ getTSState' s v
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hasStarted :: Wallet -> Spec TSModel Bool
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hasStarted v = isJust <$> getTSState v
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w1, w2 :: Wallet
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w1 = Wallet 1
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w2 = Wallet 2
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wallets :: [Wallet]
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wallets = [w1, w2]
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tokenCurrencies, nftCurrencies :: Map Wallet CurrencySymbol
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tokenCurrencies = Map.fromList $ zip wallets ["aa", "bb"]
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nftCurrencies = Map.fromList $ zip wallets ["01", "02"]
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tokenNames :: Map Wallet TokenName
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tokenNames = Map.fromList $ zip wallets ["A", "B"]
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tokens :: Map Wallet AssetClass
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tokens = Map.fromList [(w, AssetClass (tokenCurrencies Map.! w, tokenNames Map.! w)) | w <- wallets]
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nftAssets :: Map Wallet AssetClass
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nftAssets = Map.fromList [(w, AssetClass (nftCurrencies Map.! w, nftName)) | w <- wallets]
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nfts :: Map Wallet Value
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nfts = Map.fromList [(w, assetClassValue (nftAssets Map.! w) 1) | w <- wallets]
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tss :: Map Wallet TokenSale
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tss = Map.fromList
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[ (w, TokenSale { tsSeller = pubKeyHash $ walletPubKey w
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, tsToken = tokens Map.! w
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, tsNFT = nftAssets Map.! w
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})
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| w <- wallets
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]
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delay :: Int -> EmulatorTrace ()
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delay = void . waitNSlots . fromIntegral
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instanceSpec :: [ContractInstanceSpec TSModel]
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instanceSpec =
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[ContractInstanceSpec (StartKey w) w startEndpoint' | w <- wallets] ++
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[ContractInstanceSpec (UseKey v w) w $ useEndpoints $ tss Map.! v | v <- wallets, w <- wallets]
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genWallet :: Gen Wallet
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genWallet = elements wallets
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genNonNeg :: Gen Integer
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genNonNeg = getNonNegative <$> arbitrary
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tokenAmt :: Integer
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tokenAmt = 1_000
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prop_TS :: Actions TSModel -> Property
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prop_TS = withMaxSuccess 100 . propRunActionsWithOptions
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(defaultCheckOptions & emulatorConfig .~ EmulatorConfig (Left d))
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instanceSpec
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(const $ pure True)
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where
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d :: InitialDistribution
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d = Map.fromList $ [ ( w
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, lovelaceValueOf 1000_000_000 <>
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(nfts Map.! w) <>
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mconcat [assetClassValue t tokenAmt | t <- Map.elems tokens])
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| w <- wallets
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]
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test :: IO ()
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test = quickCheck prop_TS
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