Add tests for TxOut serialization.

lib/wallet/cardano-wallet.cabal

@@ -857,6 +857,7 @@ test-suite unit
     Cardano.Wallet.DB.Sqlite.TypesSpec
     Cardano.Wallet.DB.StateMachine
     Cardano.Wallet.DB.Store.DeltaUTxO.ModelSpec
+    Cardano.Wallet.DB.Store.DeltaUTxO.TxOutBinarySpec
     Cardano.Wallet.DB.Store.Meta.ModelSpec
     Cardano.Wallet.DB.Store.Meta.StoreSpec
     Cardano.Wallet.DB.Store.Submissions.StoreSpec

lib/wallet/test/unit/Cardano/Wallet/DB/Store/DeltaUTxO/TxOutBinarySpec.hs

@@ -0,0 +1,23 @@
+{-# LANGUAGE ScopedTypeVariables #-}
+module Cardano.Wallet.DB.Store.DeltaUTxO.TxOutBinarySpec
+    ( spec
+    )
+where
+
+import Prelude
+
+import Cardano.Wallet.DB.Arbitrary
+    ()
+import Cardano.Wallet.DB.Store.DeltaUTxO.TxOutBinary
+    ( deserializeTxOut, serializeTxOut )
+import Test.Hspec
+    ( Spec, describe, it )
+import Test.QuickCheck
+    ( Testable (property), (===) )
+
+spec :: Spec
+spec = do
+    describe "TxOutBinary" $ do
+        it "can serialize and deserialize TxOut" $
+            property $ \txOut ->
+                deserializeTxOut (serializeTxOut txOut) === Right txOut