fix: String representation of escrow address (backport #238)

proto/sdk/auction/v1/query.proto

@@ -22,6 +22,9 @@ message QueryParamsRequest {}
 
 // QueryParamsResponse is the response type for the Query/Params RPC method.
 message QueryParamsResponse {
-  // params defines the parameters of the module.
+  // Params defines the parameters of the module.
   Params params = 1 [ (gogoproto.nullable) = false ];
+  // EscrowAddressString is the string representation of the escrow address stored
+  // in params.
+  string escrow_address_string = 2;
 }

x/auction/keeper/grpc_query.go

@@ -29,5 +29,6 @@ func (q QueryServer) Params(c context.Context, _ *types.QueryParamsRequest) (*ty
 		return nil, err
 	}
 
-	return &types.QueryParamsResponse{Params: params}, nil
+	escrowAddress := sdk.AccAddress(params.EscrowAccountAddress)
+	return &types.QueryParamsResponse{Params: params, EscrowAddressString: escrowAddress.String()}, nil
 }

x/auction/keeper/grpc_query_test.go

@@ -0,0 +1,21 @@
+package keeper_test
+
+import (
+	sdk "github.com/cosmos/cosmos-sdk/types"
+
+	"github.com/skip-mev/block-sdk/x/auction/types"
+)
+
+func (s *KeeperTestSuite) TestQueryParams() {
+	s.Run("can query module params", func() {
+		params, err := s.auctionkeeper.GetParams(s.ctx)
+		s.Require().NoError(err)
+
+		escrowAddress := sdk.AccAddress(params.EscrowAccountAddress)
+
+		res, err := s.queryServer.Params(s.ctx, &types.QueryParamsRequest{})
+		s.Require().NoError(err)
+		s.Require().Equal(params, res.Params)
+		s.Require().Equal(escrowAddress.String(), res.EscrowAddressString)
+	})
+}

x/auction/keeper/keeper_test.go

@@ -25,9 +25,11 @@ type KeeperTestSuite struct {
 	stakingKeeper    *mocks.StakingKeeper
 	encCfg           testutils.EncodingConfig
 	ctx              sdk.Context
-	msgServer        types.MsgServer
 	key              *storetypes.KVStoreKey
 	authorityAccount sdk.AccAddress
+
+	msgServer   types.MsgServer
+	queryServer types.QueryServer
 }
 
 func TestKeeperTestSuite(t *testing.T) {
@@ -61,4 +63,5 @@ func (s *KeeperTestSuite) SetupTest() {
 	s.Require().NoError(err)
 
 	s.msgServer = keeper.NewMsgServerImpl(s.auctionkeeper)
+	s.queryServer = keeper.NewQueryServer(s.auctionkeeper)
 }