issue 380 and simplier token generation

server/codec_test.go

@@ -4,12 +4,12 @@ import "testing"
 
 func BenchmarkEncodeConcat(b *testing.B) {
 	for i := 0; i < b.N; i++ {
-		_ = Encode(INIT_SEED, 5) + Encode(INIT_SEED, 5)
+		_ = Token(5) + Token(5)
 	}
 }
 
 func BenchmarkEncodeLonger(b *testing.B) {
 	for i := 0; i < b.N; i++ {
-		_ = Encode(INIT_SEED, 10)
+		_ = Token(10)
 	}
 }