// Copyright 2011 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 packet

import (
	"bytes"
	"encoding/hex"
	"io/ioutil"
	"os"
	"testing"
)

func TestSymmetricKeyEncrypted(t *testing.T) {
	buf := readerFromHex(symmetricallyEncryptedHex)
	packet, err := Read(buf)
	if err != nil {
		t.Errorf("failed to read SymmetricKeyEncrypted: %s", err)
		return
	}
	ske, ok := packet.(*SymmetricKeyEncrypted)
	if !ok {
		t.Error("didn't find SymmetricKeyEncrypted packet")
		return
	}
	err = ske.Decrypt([]byte("password"))
	if err != nil {
		t.Error(err)
		return
	}

	packet, err = Read(buf)
	if err != nil {
		t.Errorf("failed to read SymmetricallyEncrypted: %s", err)
		return
	}
	se, ok := packet.(*SymmetricallyEncrypted)
	if !ok {
		t.Error("didn't find SymmetricallyEncrypted packet")
		return
	}
	r, err := se.Decrypt(ske.CipherFunc, ske.Key)
	if err != nil {
		t.Error(err)
		return
	}

	contents, err := ioutil.ReadAll(r)
	if err != nil && err != os.EOF {
		t.Error(err)
		return
	}

	expectedContents, _ := hex.DecodeString(symmetricallyEncryptedContentsHex)
	if !bytes.Equal(expectedContents, contents) {
		t.Errorf("bad contents got:%x want:%x", contents, expectedContents)
	}
}

const symmetricallyEncryptedHex = "8c0d04030302371a0b38d884f02060c91cf97c9973b8e58e028e9501708ccfe618fb92afef7fa2d80ddadd93cf"
const symmetricallyEncryptedContentsHex = "cb1062004d14c4df636f6e74656e74732e0a"