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package cryptoamino
import (
"reflect"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
amino "github.com/tendermint/go-amino"
"github.com/tendermint/tendermint/crypto"
"github.com/tendermint/tendermint/crypto/ed25519"
"github.com/tendermint/tendermint/crypto/secp256k1"
"github.com/tendermint/tendermint/crypto/sr25519"
tmjson "github.com/tendermint/tendermint/libs/json"
)
type AminoMarshal interface {
AminoMarshal() ([]byte, error)
AminoUnmarshal([]byte) error
}
func checkAminoBinary(t *testing.T, src, dst interface{}, size int) {
// Marshal to binary bytes.
bz, err := cdc.MarshalBinaryBare(src)
require.Nil(t, err, "%+v", err)
if byterSrc, ok := src.(AminoMarshal); ok {
// Make sure this is compatible with current (Bytes()) encoding.
bza, err := byterSrc.AminoMarshal()
assert.NoError(t, err)
assert.Equal(t, bza, bz, "Amino binary vs Bytes() mismatch")
}
// Make sure we have the expected length.
assert.Equal(t, size, len(bz), "Amino binary size mismatch")
// Unmarshal.
err = cdc.UnmarshalBinaryBare(bz, dst)
require.Nil(t, err, "%+v", err)
}
func checkJSON(t *testing.T, src interface{}, dst interface{}, isNil bool) {
// Marshal to JSON bytes.
js, err := tmjson.Marshal(src)
require.Nil(t, err, "%+v", err)
if isNil {
assert.Equal(t, string(js), `null`)
} else {
assert.Contains(t, string(js), `"type":`)
assert.Contains(t, string(js), `"value":`)
}
// Unmarshal.
err = tmjson.Unmarshal(js, dst)
require.Nil(t, err, "%+v", err)
}
func TestKeyEncodings(t *testing.T) {
cases := []struct {
privKey crypto.PrivKey
privSize, pubSize, sigSize int // binary sizes
}{
{
privKey: ed25519.GenPrivKey(),
privSize: 69,
pubSize: 37,
sigSize: 65,
},
{
privKey: sr25519.GenPrivKey(),
privSize: 37,
pubSize: 37,
sigSize: 65,
},
{
privKey: secp256k1.GenPrivKey(),
privSize: 37,
pubSize: 38,
sigSize: 65,
},
}
for tcIndex, tc := range cases {
// Check (de/en)codings of PrivKeys.
var priv2, priv3 crypto.PrivKey
checkAminoBinary(t, tc.privKey, &priv2, tc.privSize)
assert.EqualValues(t, tc.privKey, priv2, "tc #%d", tcIndex)
checkJSON(t, tc.privKey, &priv3, false) // TODO also check Prefix bytes.
assert.EqualValues(t, tc.privKey, priv3, "tc #%d", tcIndex)
// Check (de/en)codings of Signatures.
var sig1, sig2 []byte
sig1, err := tc.privKey.Sign([]byte("something"))
assert.NoError(t, err, "tc #%d", tcIndex)
checkAminoBinary(t, sig1, &sig2, tc.sigSize)
assert.EqualValues(t, sig1, sig2, "tc #%d", tcIndex)
// Check (de/en)codings of PubKeys.
pubKey := tc.privKey.PubKey()
var pub2, pub3 crypto.PubKey
checkAminoBinary(t, pubKey, &pub2, tc.pubSize)
assert.EqualValues(t, pubKey, pub2, "tc #%d", tcIndex)
checkJSON(t, pubKey, &pub3, false) // TODO also check Prefix bytes.
assert.EqualValues(t, pubKey, pub3, "tc #%d", tcIndex)
}
}
func TestNilEncodings(t *testing.T) {
// Check nil Signature.
var a, b []byte
checkJSON(t, &a, &b, true)
assert.EqualValues(t, a, b)
// Check nil PubKey.
var c, d crypto.PubKey
checkJSON(t, &c, &d, true)
assert.EqualValues(t, c, d)
// Check nil PrivKey.
var e, f crypto.PrivKey
checkJSON(t, &e, &f, true)
assert.EqualValues(t, e, f)
}
func TestPubKeyInvalidDataProperReturnsEmpty(t *testing.T) {
pk, err := PubKeyFromBytes([]byte("foo"))
require.NotNil(t, err)
require.Nil(t, pk)
}
func TestPubkeyAminoName(t *testing.T) {
tests := []struct {
key crypto.PubKey
want string
found bool
}{
{ed25519.PubKey{}, ed25519.PubKeyAminoName, true},
{sr25519.PubKey{}, sr25519.PubKeyAminoName, true},
{secp256k1.PubKey{}, secp256k1.PubKeyAminoName, true},
}
for i, tc := range tests {
got, found := PubkeyAminoName(cdc, tc.key)
require.Equal(t, tc.found, found, "not equal on tc %d", i)
if tc.found {
require.Equal(t, tc.want, got, "not equal on tc %d", i)
}
}
}
var _ crypto.PrivKey = testPriv{}
var _ crypto.PubKey = testPub{}
var testCdc = amino.NewCodec()
type testPriv []byte
func (privkey testPriv) PubKey() crypto.PubKey { return testPub{} }
func (privkey testPriv) Bytes() []byte {
return testCdc.MustMarshalBinaryBare(privkey)
}
func (privkey testPriv) Sign(msg []byte) ([]byte, error) { return []byte{}, nil }
func (privkey testPriv) Equals(other crypto.PrivKey) bool { return true }
type testPub []byte
func (key testPub) Address() crypto.Address { return crypto.Address{} }
func (key testPub) Bytes() []byte {
return testCdc.MustMarshalBinaryBare(key)
}
func (key testPub) VerifyBytes(msg []byte, sig []byte) bool { return true }
func (key testPub) Equals(other crypto.PubKey) bool { return true }
var (
privAminoName = "registerTest/Priv"
pubAminoName = "registerTest/Pub"
)
func TestRegisterKeyType(t *testing.T) {
RegisterAmino(testCdc)
testCdc.RegisterConcrete(testPriv{}, privAminoName, nil)
testCdc.RegisterConcrete(testPub{}, pubAminoName, nil)
pub := testPub{0x1}
priv := testPriv{0x2}
// Check to make sure key cannot be decoded before registering
_, err := PrivKeyFromBytes(priv.Bytes())
require.Error(t, err)
_, err = PubKeyFromBytes(pub.Bytes())
require.Error(t, err)
// Check that name is not registered
_, found := PubkeyAminoName(testCdc, pub)
require.False(t, found)
// Register key types
RegisterKeyType(testPriv{}, privAminoName)
RegisterKeyType(testPub{}, pubAminoName)
// Name should exist after registering
name, found := PubkeyAminoName(testCdc, pub)
require.True(t, found)
require.Equal(t, name, pubAminoName)
// Decode keys using the encoded bytes from encoding with the other codec
decodedPriv, err := PrivKeyFromBytes(priv.Bytes())
require.NoError(t, err)
require.Equal(t, priv, decodedPriv)
decodedPub, err := PubKeyFromBytes(pub.Bytes())
require.NoError(t, err)
require.Equal(t, pub, decodedPub)
// Reset module codec after testing
cdc = amino.NewCodec()
nameTable = make(map[reflect.Type]string, 3)
RegisterAmino(cdc)
nameTable[reflect.TypeOf(ed25519.PubKey{})] = ed25519.PubKeyAminoName
nameTable[reflect.TypeOf(sr25519.PubKey{})] = sr25519.PubKeyAminoName
nameTable[reflect.TypeOf(secp256k1.PubKey{})] = secp256k1.PubKeyAminoName
}