Extract creation of stake address from plutus script

hydra-cardano-api/src/Hydra/Cardano/Api/AddressInEra.hs

@@ -58,6 +58,18 @@ mkScriptAddress networkId script =
  where
   version = plutusScriptVersion @lang
 
+-- | Construct a stake address from a Plutus script.
+mkStakeScriptAddress ::
+  forall lang.
+  IsPlutusScriptLanguage lang =>
+  NetworkId ->
+  PlutusScript lang ->
+  StakeAddress
+mkStakeScriptAddress networkId script =
+  makeStakeAddress networkId $ StakeCredentialByScript $ hashScript $ PlutusScript version script
+ where
+  version = plutusScriptVersion @lang
+
 -- * Type Conversions
 
 -- | From a ledger 'Addr' to an api 'AddressInEra'

hydra-node/test/Hydra/Chain/Direct/TxSpec.hs

@@ -31,7 +31,6 @@ import Control.Lens ((^.))
 import Data.Map qualified as Map
 import Data.Maybe.Strict (StrictMaybe (..))
 import Data.Set qualified as Set
-import Hydra.Cardano.Api.Prelude (StakeCredential (StakeCredentialByScript))
 import Hydra.Cardano.Api.Pretty (renderTxWithUTxO)
 import Hydra.Chain.Direct.State (ChainContext (..), HasKnownUTxO (getKnownUTxO), genChainStateWithTx)
 import Hydra.Chain.Direct.State qualified as Transition
@@ -301,9 +300,7 @@ genBlueprintTxWithUTxO =
           let scriptWitness = mkScriptWitness alwaysSucceedingScript NoScriptDatumForStake redeemer
               alwaysSucceedingScript = PlutusScriptSerialised $ Plutus.alwaysSucceedingNAryFunction 2
               redeemer = toScriptData (123 :: Integer)
-              -- XXX: Depends on hydra-cardano-api prelude (maybe extract a helper to hydra-cardano-api?)
-              stakeCredential = StakeCredentialByScript $ hashScript $ PlutusScript alwaysSucceedingScript
-              stakeAddress = makeStakeAddress testNetworkId stakeCredential
+              stakeAddress = mkStakeScriptAddress testNetworkId alwaysSucceedingScript
           pure
             ( utxo
             , txbody