swarm/api: Amend @gbalint comments PR 204 + args dep test loglvl

swarm/api/api.go

@@ -389,8 +389,11 @@ func (self *Api) ResourceLookup(name string, period uint32, version uint32) (sto
 
 func (self *Api) ResourceCreate(name string, frequency uint64) (storage.Key, error) {
 	rsrc, err := self.resource.NewResource(name, frequency)
+	if err != nil {
+		return nil, err
+	}
 	h := rsrc.NameHash()
-	return storage.Key(h[:]), err
+	return storage.Key(h[:]), nil
 }
 
 func (self *Api) ResourceUpdate(name string, data []byte) (storage.Key, uint32, uint32, error) {

swarm/api/http/server_test.go

@@ -64,13 +64,15 @@ func TestBzzResource(t *testing.T) {
 	resp, err := http.Post(url, "application/octet-stream", bytes.NewReader(databytes))
 	if err != nil {
 		t.Fatal(err)
-	} else if resp.StatusCode != http.StatusOK {
+	}
+	if resp.StatusCode != http.StatusOK {
 		t.Fatalf("err %s", resp.Status)
 	}
 	b, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		t.Fatal(err)
-	} else if !bytes.Equal(b, []byte(keybyteshash)) {
+	}
+	if !bytes.Equal(b, []byte(keybyteshash)) {
 		t.Fatalf("resource update hash mismatch, expected '%s' got '%s'", keybyteshash, b)
 	}
 	resp.Body.Close()
@@ -80,13 +82,15 @@ func TestBzzResource(t *testing.T) {
 	resp, err = http.Get(url)
 	if err != nil {
 		t.Fatal(err)
-	} else if resp.StatusCode != http.StatusOK {
+	}
+	if resp.StatusCode != http.StatusOK {
 		t.Fatalf("err %s", resp.Status)
 	}
 	b, err = ioutil.ReadAll(resp.Body)
 	if err != nil {
 		t.Fatal(err)
-	} else if !bytes.Equal(databytes, b) {
+	}
+	if !bytes.Equal(databytes, b) {
 		t.Fatalf("Expected body '%x', got '%x'", databytes, b)
 	}
 	resp.Body.Close()
@@ -97,7 +101,8 @@ func TestBzzResource(t *testing.T) {
 	resp, err = http.Post(url, "application/octet-stream", bytes.NewReader(data))
 	if err != nil {
 		t.Fatal(err)
-	} else if resp.StatusCode != http.StatusOK {
+	}
+	if resp.StatusCode != http.StatusOK {
 		t.Fatalf("Update returned %d", resp.Status)
 	}
 
@@ -106,13 +111,15 @@ func TestBzzResource(t *testing.T) {
 	resp, err = http.Get(url)
 	if err != nil {
 		t.Fatal(err)
-	} else if resp.StatusCode != http.StatusOK {
+	}
+	if resp.StatusCode != http.StatusOK {
 		t.Fatalf("err %s", resp.Status)
 	}
 	b, err = ioutil.ReadAll(resp.Body)
 	if err != nil {
 		t.Fatal(err)
-	} else if !bytes.Equal(data, b) {
+	}
+	if !bytes.Equal(data, b) {
 		t.Fatalf("Expected body '%x', got '%x'", data, b)
 	}
 	resp.Body.Close()

swarm/storage/resource.go

@@ -703,7 +703,7 @@ func newUpdateChunk(key Key, signature *Signature, period uint32, version uint32
 	datalength := len(data)
 
 	chunk := NewChunk(key, nil)
-	chunk.SData = make([]byte, 4+signaturelength+headerlength+datalength)
+	chunk.SData = make([]byte, 4+signaturelength+headerlength+datalength) // initial 4 are uint16 length descriptors for headerlength and datalength
 
 	// data header length does NOT include the header length prefix bytes themselves
 	cursor := 0

swarm/storage/resource_test.go

@@ -6,6 +6,7 @@ import (
 	"crypto/ecdsa"
 	"crypto/rand"
 	"encoding/binary"
+	"flag"
 	"fmt"
 	"io/ioutil"
 	"math/big"
@@ -37,7 +38,11 @@ var (
 
 func init() {
 	var err error
-	log.Root().SetHandler(log.CallerFileHandler(log.LvlFilterHandler(log.LvlTrace, log.StreamHandler(os.Stderr, log.TerminalFormat(true)))))
+	verbose := flag.Bool("v", false, "verbose")
+	flag.Parse()
+	if *verbose {
+		log.Root().SetHandler(log.CallerFileHandler(log.LvlFilterHandler(log.LvlTrace, log.StreamHandler(os.Stderr, log.TerminalFormat(true)))))
+	}
 	safeName, err = ToSafeName(domainName)
 	if err != nil {
 		panic(err)