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107 lines
3.3 KiB
107 lines
3.3 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 TestNewPoolL2Tx(t *testing.T) {
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poolL2Tx := &PoolL2Tx{
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FromIdx: 87654,
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ToIdx: 300,
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Amount: big.NewInt(4),
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TokenID: 5,
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Nonce: 144,
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}
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poolL2Tx, err := NewPoolL2Tx(poolL2Tx)
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assert.Nil(t, err)
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assert.Equal(t, "0x020000000156660000000090", poolL2Tx.TxID.String())
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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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expectedStr := "1766847064778421992193717128424891165872736891548909569553540449389241871"
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assert.Equal(t, expectedStr, txCompressedData.String())
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expected, ok := new(big.Int).SetString(expectedStr, 10)
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assert.True(t, ok)
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assert.Equal(t, expected.Bytes(), txCompressedData.Bytes())
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assert.Equal(t, "10000000000060000000500040000000000030000000000020001c60be60f", hex.EncodeToString(txCompressedData.Bytes())[1:])
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tx = PoolL2Tx{
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RqFromIdx: 7,
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RqToIdx: 8,
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RqAmount: big.NewInt(9),
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RqTokenID: 10,
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RqNonce: 11,
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RqFee: 12,
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RqToBJJ: sk.Public(),
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}
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txCompressedData, err = tx.RqTxCompressedDataV2()
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assert.Nil(t, err)
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// test vector value generated from javascript implementation
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expectedStr = "6571340879233176732837827812956721483162819083004853354503"
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assert.Equal(t, expectedStr, txCompressedData.String())
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expected, ok = new(big.Int).SetString(expectedStr, 10)
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assert.True(t, ok)
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assert.Equal(t, expected.Bytes(), txCompressedData.Bytes())
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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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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: ethCommon.HexToAddress("0xc58d29fA6e86E4FAe04DDcEd660d45BCf3Cb2370"),
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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, "13412877307445712067533842795279849753265998687662992184595695642580679868064", 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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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: ethCommon.HexToAddress("0xc58d29fA6e86E4FAe04DDcEd660d45BCf3Cb2370"),
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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, "13412877307445712067533842795279849753265998687662992184595695642580679868064", toSign.String())
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sig := sk.SignPoseidon(toSign)
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tx.Signature = sig.Compress()
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assert.True(t, tx.VerifySignature(sk.Public()))
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}
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