go-hash-serialization.go

func TestGoHashSerialization(t *testing.T) {
	hasher := sha256.New()
	hasher.Write([]byte{0x2})
	bytes, err := hasher.(encoding.BinaryMarshaler).MarshalBinary()
	if err != nil {
		t.Fatalf("%s", err)
	}

	hasher2 := sha256.New()
	err = hasher2.(encoding.BinaryUnmarshaler).UnmarshalBinary(bytes)
	if err != nil {
		t.Fatalf("%s", err)
	}

	fmt.Printf("hash: %x\n", hasher.Sum(nil))
	fmt.Printf("hash2: %x\n", hasher2.Sum(nil))
}