diff --git a/binary/protobuf_test.go b/binary/protobuf_test.go
new file mode 100644
index 00000000..d919e707
--- /dev/null
+++ b/binary/protobuf_test.go
@@ -0,0 +1,26 @@
+package binary
+
+import (
+	"math"
+	"testing"
+)
+
+func benchEncoderUvarint(b *testing.B, v uint64) {
+	e := encoder{}
+	for i := 0; i < b.N; i++ {
+		e.Reset()
+		e.uvarint(v)
+	}
+}
+
+func Benchmark_encoder_uvarint(b *testing.B) {
+	b.Run("short", func(b *testing.B) {
+		benchEncoderUvarint(b, uint64(1))
+	})
+	b.Run("medium", func(b *testing.B) {
+		benchEncoderUvarint(b, uint64(114514))
+	})
+	b.Run("large", func(b *testing.B) {
+		benchEncoderUvarint(b, math.MaxUint64)
+	})
+}