all: fix ineffectual assignments and remove uses of crypto.Sha3

go get github.com/gordonklaus/ineffassign
ineffassign .

3 files changed, 8 insertions, 16 deletions

diff --git a/whisper/whisperv5/filter.go b/whisper/whisperv5/filter.go
index 3845d0c20..a386aa164 100644
--- a/whisper/whisperv5/filter.go
+++ b/whisper/whisperv5/filter.go
@@ -86,7 +86,7 @@ func (fs *Filters) NotifyWatchers(env *Envelope, p2pMessage bool) {
 			continue
 		}
 
-		match := false
+		var match bool
 		if msg != nil {
 			match = watcher.MatchMessage(msg)
 		} else {
diff --git a/whisper/whisperv5/message_test.go b/whisper/whisperv5/message_test.go
index 3eb71653d..7c90f59c0 100644
--- a/whisper/whisperv5/message_test.go
+++ b/whisper/whisperv5/message_test.go
@@ -77,10 +77,8 @@ func singleMessageTest(t *testing.T, symmetric bool) {
 
 	text := make([]byte, 0, 512)
 	steg := make([]byte, 0, 512)
-	raw := make([]byte, 0, 1024)
 	text = append(text, params.Payload...)
 	steg = append(steg, params.Padding...)
-	raw = append(raw, params.Padding...)
 
 	msg := NewSentMessage(params)
 	env, err := msg.Wrap(params)
@@ -238,10 +236,8 @@ func singleEnvelopeOpenTest(t *testing.T, symmetric bool) {
 
 	text := make([]byte, 0, 512)
 	steg := make([]byte, 0, 512)
-	raw := make([]byte, 0, 1024)
 	text = append(text, params.Payload...)
 	steg = append(steg, params.Padding...)
-	raw = append(raw, params.Padding...)
 
 	msg := NewSentMessage(params)
 	env, err := msg.Wrap(params)
diff --git a/whisper/whisperv5/whisper_test.go b/whisper/whisperv5/whisper_test.go
index dbe0627fa..b9cd9b1a0 100644
--- a/whisper/whisperv5/whisper_test.go
+++ b/whisper/whisperv5/whisper_test.go
@@ -50,20 +50,17 @@ func TestWhisperBasic(t *testing.T) {
 
 	peerID := make([]byte, 64)
 	randomize(peerID)
-	peer, err := w.getPeer(peerID)
+	peer, _ := w.getPeer(peerID)
 	if peer != nil {
-		t.Fatalf("failed GetPeer.")
+		t.Fatal("found peer for random key.")
 	}
-	err = w.MarkPeerTrusted(peerID)
-	if err == nil {
+	if err := w.MarkPeerTrusted(peerID); err == nil {
 		t.Fatalf("failed MarkPeerTrusted.")
 	}
-	err = w.RequestHistoricMessages(peerID, peerID)
-	if err == nil {
+	if err := w.RequestHistoricMessages(peerID, peerID); err == nil {
 		t.Fatalf("failed RequestHistoricMessages.")
 	}
-	err = w.SendP2PMessage(peerID, nil)
-	if err == nil {
+	if err := w.SendP2PMessage(peerID, nil); err == nil {
 		t.Fatalf("failed SendP2PMessage.")
 	}
 	exist := w.HasSymKey("non-existing")
@@ -85,11 +82,10 @@ func TestWhisperBasic(t *testing.T) {
 
 	var derived []byte
 	ver := uint64(0xDEADBEEF)
-	derived, err = deriveKeyMaterial(peerID, ver)
-	if err != unknownVersionError(ver) {
+	if _, err := deriveKeyMaterial(peerID, ver); err != unknownVersionError(ver) {
 		t.Fatalf("failed deriveKeyMaterial with param = %v: %s.", peerID, err)
 	}
-	derived, err = deriveKeyMaterial(peerID, 0)
+	derived, err := deriveKeyMaterial(peerID, 0)
 	if err != nil {
 		t.Fatalf("failed second deriveKeyMaterial with param = %v: %s.", peerID, err)
 	}