cmd/swarm: Update Mutable Resource (now Swarm feed) smoke test

cmd/swarm/swarm-smoke/main.go

@@ -21,7 +21,6 @@ import (
 	"sort"
 
 	"github.com/ethereum/go-ethereum/log"
-	colorable "github.com/mattn/go-colorable"
 
 	cli "gopkg.in/urfave/cli.v1"
 )
@@ -34,11 +33,10 @@ var (
 	filesize         int
 	from             int
 	to               int
+	verbosity        int
 )
 
 func main() {
-	log.PrintOrigins(true)
-	log.Root().SetHandler(log.LvlFilterHandler(log.LvlTrace, log.StreamHandler(colorable.NewColorableStderr(), log.TerminalFormat(true))))
 
 	app := cli.NewApp()
 	app.Name = "smoke-test"
@@ -80,6 +78,12 @@ func main() {
 			Usage:       "file size for generated random file in KB",
 			Destination: &filesize,
 		},
+		cli.IntFlag{
+			Name:        "verbosity",
+			Value:       1,
+			Usage:       "verbosity",
+			Destination: &verbosity,
+		},
 	}
 
 	app.Commands = []cli.Command{
@@ -89,6 +93,12 @@ func main() {
 			Usage:   "upload and sync",
 			Action:  cliUploadAndSync,
 		},
+		{
+			Name:    "feed_sync",
+			Aliases: []string{"f"},
+			Usage:   "feed update generate, upload and sync",
+			Action:  cliFeedUploadAndSync,
+		},
 	}
 
 	sort.Sort(cli.FlagsByName(app.Flags))

cmd/swarm/swarm-smoke/upload_and_sync.go

@@ -19,7 +19,8 @@ package main
 import (
 	"bytes"
 	"crypto/md5"
-	"crypto/rand"
+	crand "crypto/rand"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -166,6 +167,18 @@ func digest(r io.Reader) ([]byte, error) {
 	return h.Sum(nil), nil
 }
 
+// generates random data in heap buffer
+func generateRandomData(datasize int) ([]byte, error) {
+	b := make([]byte, datasize)
+	c, err := crand.Read(b)
+	if err != nil {
+		return nil, err
+	} else if c != datasize {
+		return nil, errors.New("short read")
+	}
+	return b, nil
+}
+
 // generateRandomFile is creating a temporary file with the requested byte size
 func generateRandomFile(size int) (f *os.File, teardown func()) {
 	// create a tmp file
@@ -181,7 +194,7 @@ func generateRandomFile(size int) (f *os.File, teardown func()) {
 	}
 
 	buf := make([]byte, size)
-	_, err = rand.Read(buf)
+	_, err = crand.Read(buf)
 	if err != nil {
 		panic(err)
 	}