diff --git a/binary/binary_bench_test.go b/binary/binary_bench_test.go
new file mode 100644
index 0000000..ad784bf
--- /dev/null
+++ b/binary/binary_bench_test.go
@@ -0,0 +1,116 @@
+package binary
+
+import (
+	"encoding/json"
+	"testing"
+
+	"github.com/mailru/easyjson"
+	"github.com/nbd-wtf/go-nostr"
+)
+
+func BenchmarkBinaryEncoding(b *testing.B) {
+	events := make([]*nostr.Event, len(normalEvents))
+	binaryEvents := make([]*Event, len(normalEvents))
+	for i, jevt := range normalEvents {
+		evt := &nostr.Event{}
+		json.Unmarshal([]byte(jevt), evt)
+		events[i] = evt
+		binaryEvents[i] = BinaryEvent(evt)
+	}
+
+	b.Run("easyjson.Marshal", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			for _, evt := range events {
+				easyjson.Marshal(evt)
+			}
+		}
+	})
+
+	b.Run("binary.Marshal", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			for _, evt := range events {
+				Marshal(evt)
+			}
+		}
+	})
+
+	b.Run("binary.MarshalBinary", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			for _, bevt := range binaryEvents {
+				MarshalBinary(bevt)
+			}
+		}
+	})
+}
+
+func BenchmarkBinaryDecoding(b *testing.B) {
+	events := make([][]byte, len(normalEvents))
+	for i, jevt := range normalEvents {
+		evt := &nostr.Event{}
+		json.Unmarshal([]byte(jevt), evt)
+		bevt, _ := Marshal(evt)
+		events[i] = bevt
+	}
+
+	b.Run("easyjson.Unmarshal", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			for _, jevt := range normalEvents {
+				evt := &nostr.Event{}
+				err := easyjson.Unmarshal([]byte(jevt), evt)
+				if err != nil {
+					b.Fatalf("failed to unmarshal: %s", err)
+				}
+			}
+		}
+	})
+
+	b.Run("binary.Unmarshal", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			for _, bevt := range events {
+				evt := &nostr.Event{}
+				err := Unmarshal(bevt, evt)
+				if err != nil {
+					b.Fatalf("failed to unmarshal: %s", err)
+				}
+			}
+		}
+	})
+
+	b.Run("binary.UnmarshalBinary", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			for _, bevt := range events {
+				evt := &Event{}
+				err := UnmarshalBinary(bevt, evt)
+				if err != nil {
+					b.Fatalf("failed to unmarshal: %s", err)
+				}
+			}
+		}
+	})
+
+	b.Run("easyjson.Unmarshal+sig", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			for _, nevt := range normalEvents {
+				evt := &nostr.Event{}
+				err := easyjson.Unmarshal([]byte(nevt), evt)
+				if err != nil {
+					b.Fatalf("failed to unmarshal: %s", err)
+				}
+				evt.CheckSignature()
+			}
+		}
+	})
+
+	b.Run("binary.Unmarshal+sig", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			for _, bevt := range events {
+				evt := &nostr.Event{}
+				err := Unmarshal(bevt, evt)
+				if err != nil {
+					b.Fatalf("failed to unmarshal: %s", err)
+				}
+				evt.CheckSignature()
+			}
+		}
+	})
+}
diff --git a/binary/binary_test.go b/binary/binary_test.go
index a98e767..a638ca1 100644
--- a/binary/binary_test.go
+++ b/binary/binary_test.go
@@ -6,7 +6,6 @@ import (
 	"encoding/json"
 	"testing"
 
-	"github.com/mailru/easyjson"
 	"github.com/nbd-wtf/go-nostr"
 )
 
@@ -46,13 +45,12 @@ func TestBinaryEncode(t *testing.T) {
 		if err := json.Unmarshal([]byte(jevt), pevt); err != nil {
 			t.Fatalf("failed to decode normal json: %s", err)
 		}
-		nevt, err := Marshal(pevt)
+		bevt, err := Marshal(pevt)
 		if err != nil {
 			t.Fatalf("failed to encode binary: %s", err)
 		}
-
 		evt := &nostr.Event{}
-		if err := Unmarshal(nevt, evt); err != nil {
+		if err := Unmarshal(bevt, evt); err != nil {
 			t.Fatalf("error unmarshalling binary: %s", err)
 		}
 		checkParsedCorrectly(t, pevt, jevt)
@@ -130,110 +128,3 @@ var normalEvents = []string{
 	`{"id":"e2aec1b7e297329203f67b61f214c2b745a3bc1590f299ca250a1633714c829c","pubkey":"b6ac413652c8431478cb6177722f822f0f7af774a274fc5574872407834c3253","created_at":1688553478,"kind":1,"tags":[],"content":"やー今日も疲れたなー！\n大将！お勧めでイソシアネートとポリオールね！\nあ、6:4でよろしく！","sig":"12ba5dc9ff18f4ce995941f6de3bfaf8e3636afde37a06a4d3478c930ae22e2f79690e6f0682d532541222746aeb5f6dda29251cd7c31e71d7e206199b04bab4"}`,
 	`{"id":"e4e86256ed64514bcb3350cf8b631ef84b4aeafcdb164cea5096c893ead6a0a1","pubkey":"79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798","created_at":1688574304,"kind":1,"tags":[],"content":"\b\f\ueeee","sig":"c61a4971facc4899109e1a28b73cbd27f8807fedcff87cfa1d8f5e9b709feab75e3a62a96fc75b5d2a2f42443d5ca35daa6c3d724cd6e6133b9c4a1ef072c1e9"}`,
 }
-
-func BenchmarkBinaryEncoding(b *testing.B) {
-	events := make([]*nostr.Event, len(normalEvents))
-	binaryEvents := make([]*Event, len(normalEvents))
-	for i, jevt := range normalEvents {
-		evt := &nostr.Event{}
-		json.Unmarshal([]byte(jevt), evt)
-		events[i] = evt
-		binaryEvents[i] = BinaryEvent(evt)
-	}
-
-	b.Run("easyjson.Marshal", func(b *testing.B) {
-		for i := 0; i < b.N; i++ {
-			for _, evt := range events {
-				easyjson.Marshal(evt)
-			}
-		}
-	})
-
-	b.Run("binary.Marshal", func(b *testing.B) {
-		for i := 0; i < b.N; i++ {
-			for _, evt := range events {
-				Marshal(evt)
-			}
-		}
-	})
-
-	b.Run("binary.MarshalBinary", func(b *testing.B) {
-		for i := 0; i < b.N; i++ {
-			for _, bevt := range binaryEvents {
-				MarshalBinary(bevt)
-			}
-		}
-	})
-}
-
-func BenchmarkBinaryDecoding(b *testing.B) {
-	events := make([][]byte, len(normalEvents))
-	for i, jevt := range normalEvents {
-		evt := &nostr.Event{}
-		json.Unmarshal([]byte(jevt), evt)
-		bevt, _ := Marshal(evt)
-		events[i] = bevt
-	}
-
-	b.Run("easyjson.Unmarshal", func(b *testing.B) {
-		for i := 0; i < b.N; i++ {
-			for _, jevt := range normalEvents {
-				evt := &nostr.Event{}
-				err := easyjson.Unmarshal([]byte(jevt), evt)
-				if err != nil {
-					b.Fatalf("failed to unmarshal: %s", err)
-				}
-			}
-		}
-	})
-
-	b.Run("binary.Unmarshal", func(b *testing.B) {
-		for i := 0; i < b.N; i++ {
-			for _, bevt := range events {
-				evt := &nostr.Event{}
-				err := Unmarshal(bevt, evt)
-				if err != nil {
-					b.Fatalf("failed to unmarshal: %s", err)
-				}
-			}
-		}
-	})
-
-	b.Run("binary.UnmarshalBinary", func(b *testing.B) {
-		for i := 0; i < b.N; i++ {
-			for _, bevt := range events {
-				evt := &Event{}
-				err := UnmarshalBinary(bevt, evt)
-				if err != nil {
-					b.Fatalf("failed to unmarshal: %s", err)
-				}
-			}
-		}
-	})
-
-	b.Run("easyjson.Unmarshal+sig", func(b *testing.B) {
-		for i := 0; i < b.N; i++ {
-			for _, nevt := range normalEvents {
-				evt := &nostr.Event{}
-				err := easyjson.Unmarshal([]byte(nevt), evt)
-				if err != nil {
-					b.Fatalf("failed to unmarshal: %s", err)
-				}
-				evt.CheckSignature()
-			}
-		}
-	})
-
-	b.Run("binary.Unmarshal+sig", func(b *testing.B) {
-		for i := 0; i < b.N; i++ {
-			for _, bevt := range events {
-				evt := &nostr.Event{}
-				err := Unmarshal(bevt, evt)
-				if err != nil {
-					b.Fatalf("failed to unmarshal: %s", err)
-				}
-				evt.CheckSignature()
-			}
-		}
-	})
-}