chore: fix linter errors

cmd/dummy/main.go

@@ -0,0 +1,59 @@
+package main
+
+import (
+	"errors"
+	"log"
+	"net"
+	"os"
+	"sync"
+	"time"
+
+	"google.golang.org/grpc"
+
+	grpcproxy "github.com/rollkit/go-execution/proxy/grpc"
+	"github.com/rollkit/go-execution/test"
+	pb "github.com/rollkit/go-execution/types/pb/execution"
+)
+
+const bufSize = 1024 * 1024
+
+func main() {
+	dummy := test.NewDummyExecutor()
+	config := &grpcproxy.Config{
+		DefaultTimeout: 5 * time.Second,
+		MaxRequestSize: bufSize,
+	}
+
+	listenAddress := "127.0.0.1:40041"
+	if len(os.Args) == 2 {
+		listenAddress = os.Args[1]
+	}
+
+	listener, err := net.Listen("tcp4", listenAddress)
+	if err != nil {
+		log.Fatalf("error while creating listener: %v\n", err)
+	}
+	defer func() {
+		_ = listener.Close()
+	}()
+
+	log.Println("Starting server...")
+	server := grpcproxy.NewServer(dummy, config)
+	s := grpc.NewServer()
+	pb.RegisterExecutionServiceServer(s, server)
+
+	wg := sync.WaitGroup{}
+	wg.Add(1)
+
+	go func() {
+		log.Println("Serving...")
+		if err := s.Serve(listener); err != nil && !errors.Is(err, grpc.ErrServerStopped) {
+			log.Fatalf("Server exited with error: %v\n", err)
+		}
+		wg.Done()
+	}()
+	defer s.Stop()
+
+	wg.Wait()
+	log.Println("Server stopped")
+}

test/dummy.go

@@ -41,6 +41,7 @@ func (e *DummyExecutor) GetTxs(context.Context) ([]types.Tx, error) {
 	return txs, nil
 }
 
+// InjectTx adds a transaction to the internal list of injected transactions in the DummyExecutor instance.
 func (e *DummyExecutor) InjectTx(tx types.Tx) {
 	e.injectedTxs = append(e.injectedTxs, tx)
 }