Gecko [ 167.86.127.34 ]

Name	Size	Permission
adler32	[ DIR ]	drwxr-xr-x
crc32	[ DIR ]	drwxr-xr-x
crc64	[ DIR ]	drwxr-xr-x
fnv	[ DIR ]	drwxr-xr-x
maphash	[ DIR ]	drwxr-xr-x
example_test.go	1.16 KB	-rw-r--r--
hash.go	2.09 KB	-rw-r--r--
marshal_test.go	5.43 KB	-rw-r--r--
test_cases.txt	1.26 KB	-rw-r--r--
test_gen.awk	450 B	-rw-r--r--

Code Editor : example_test.go

// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package hash_test

import (
	"bytes"
	"crypto/sha256"
	"encoding"
	"fmt"
	"log"
)

func Example_binaryMarshaler() {
	const (
		input1 = "The tunneling gopher digs downwards, "
		input2 = "unaware of what he will find."
	)

first := sha256.New()
	first.Write([]byte(input1))

marshaler, ok := first.(encoding.BinaryMarshaler)
	if !ok {
		log.Fatal("first does not implement encoding.BinaryMarshaler")
	}
	state, err := marshaler.MarshalBinary()
	if err != nil {
		log.Fatal("unable to marshal hash:", err)
	}

second := sha256.New()

unmarshaler, ok := second.(encoding.BinaryUnmarshaler)
	if !ok {
		log.Fatal("second does not implement encoding.BinaryUnmarshaler")
	}
	if err := unmarshaler.UnmarshalBinary(state); err != nil {
		log.Fatal("unable to unmarshal hash:", err)
	}

first.Write([]byte(input2))
	second.Write([]byte(input2))

fmt.Printf("%x\n", first.Sum(nil))
	fmt.Println(bytes.Equal(first.Sum(nil), second.Sum(nil)))
	// Output:
	// 57d51a066f3a39942649cd9a76c77e97ceab246756ff3888659e6aa5a07f4a52
	// true
}

${this.title}

Code Editor : example_test.go