Add mock proof server

test/proofserver/cli/main.go

@@ -0,0 +1,47 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"log"
+	"os"
+	"os/signal"
+	"sync"
+	"time"
+
+	"github.com/hermeznetwork/hermez-node/test/proofserver"
+)
+
+func main() {
+	var addr string
+	flag.StringVar(&addr, "a", "localhost:3000", "listen address")
+	var provingDuration time.Duration
+	flag.DurationVar(&provingDuration, "d", 2*time.Second, "proving time duration") //nolint:gomnd
+	flag.Parse()
+
+	mock := proofserver.NewMock(addr, provingDuration)
+	ctx, cancel := context.WithCancel(context.Background())
+	var wg sync.WaitGroup
+	wg.Add(1)
+	go func() {
+		if err := mock.Run(ctx); err != nil {
+			log.Fatal(err)
+		}
+		wg.Done()
+	}()
+
+	stopCh := make(chan interface{})
+	// catch ^C to send the stop signal
+	ossig := make(chan os.Signal, 1)
+	signal.Notify(ossig, os.Interrupt)
+	go func() {
+		for sig := range ossig {
+			if sig == os.Interrupt {
+				stopCh <- nil
+			}
+		}
+	}()
+	<-stopCh
+	cancel()
+	wg.Wait()
+}