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117 lines
3.4 KiB
117 lines
3.4 KiB
package common
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import (
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"encoding/hex"
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"math/big"
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"testing"
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ethCommon "github.com/ethereum/go-ethereum/common"
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"github.com/iden3/go-iden3-crypto/babyjub"
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"github.com/stretchr/testify/assert"
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)
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func TestNonceParser(t *testing.T) {
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n := Nonce(1)
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nBytes, err := n.Bytes()
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assert.Nil(t, err)
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assert.Equal(t, 5, len(nBytes))
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assert.Equal(t, "0100000000", hex.EncodeToString(nBytes[:]))
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n2 := NonceFromBytes(nBytes)
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assert.Equal(t, n, n2)
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// value before overflow
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n = Nonce(1099511627775)
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nBytes, err = n.Bytes()
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assert.Nil(t, err)
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assert.Equal(t, 5, len(nBytes))
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assert.Equal(t, "ffffffffff", hex.EncodeToString(nBytes[:]))
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n2 = NonceFromBytes(nBytes)
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assert.Equal(t, n, n2)
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// expect value overflow
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n = Nonce(1099511627776)
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nBytes, err = n.Bytes()
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assert.NotNil(t, err)
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assert.Equal(t, ErrNonceOverflow, err)
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}
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func TestTxCompressedData(t *testing.T) {
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var sk babyjub.PrivateKey
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_, err := hex.Decode(sk[:], []byte("0001020304050607080900010203040506070809000102030405060708090001"))
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assert.Nil(t, err)
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tx := PoolL2Tx{
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FromIdx: 2,
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ToIdx: 3,
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Amount: big.NewInt(4),
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TokenID: 5,
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Nonce: 6,
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ToBJJ: sk.Public(),
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}
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txCompressedData, err := tx.TxCompressedData()
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assert.Nil(t, err)
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// test vector value generated from javascript implementation
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assert.Equal(t, "1766847064778421992193717128424891165872736891548909569553540449389241871", txCompressedData.String())
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assert.Equal(t, "10000000000060000000500040000000000030000000000020001c60be60f", hex.EncodeToString(txCompressedData.Bytes())[1:])
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tx = PoolL2Tx{
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FromIdx: 7,
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ToIdx: 8,
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Amount: big.NewInt(9),
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TokenID: 10,
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Nonce: 11,
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Fee: 12,
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ToBJJ: sk.Public(),
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}
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txCompressedData, err = tx.TxCompressedDataV2()
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assert.Nil(t, err)
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// test vector value generated from javascript implementation
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assert.Equal(t, "6571340879233176732837827812956721483162819083004853354503", txCompressedData.String())
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assert.Equal(t, "10c000000000b0000000a0009000000000008000000000007", hex.EncodeToString(txCompressedData.Bytes())[1:])
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}
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func TestHashToSign(t *testing.T) {
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var sk babyjub.PrivateKey
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_, err := hex.Decode(sk[:], []byte("0001020304050607080900010203040506070809000102030405060708090001"))
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assert.Nil(t, err)
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ethAddr := ethCommon.HexToAddress("0xc58d29fA6e86E4FAe04DDcEd660d45BCf3Cb2370")
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tx := PoolL2Tx{
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FromIdx: 2,
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ToIdx: 3,
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Amount: big.NewInt(4),
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TokenID: 5,
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Nonce: 6,
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ToBJJ: sk.Public(),
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RqToEthAddr: ethAddr,
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RqToBJJ: sk.Public(),
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}
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toSign, err := tx.HashToSign()
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assert.Nil(t, err)
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assert.Equal(t, "14526446928649310956370997581245770629723313742905751117262272426489782809503", toSign.String())
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}
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func TestVerifyTxSignature(t *testing.T) {
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var sk babyjub.PrivateKey
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_, err := hex.Decode(sk[:], []byte("0001020304050607080900010203040506070809000102030405060708090001"))
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assert.Nil(t, err)
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ethAddr := ethCommon.HexToAddress("0xc58d29fA6e86E4FAe04DDcEd660d45BCf3Cb2370")
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tx := PoolL2Tx{
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FromIdx: 2,
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ToIdx: 3,
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Amount: big.NewInt(4),
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TokenID: 5,
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Nonce: 6,
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ToBJJ: sk.Public(),
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RqToEthAddr: ethAddr,
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RqToBJJ: sk.Public(),
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}
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toSign, err := tx.HashToSign()
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assert.Nil(t, err)
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assert.Equal(t, "14526446928649310956370997581245770629723313742905751117262272426489782809503", toSign.String())
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sig := sk.SignPoseidon(toSign)
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tx.Signature = sig
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assert.True(t, tx.VerifySignature(sk.Public()))
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}
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