1package test
  2
  3import (
  4	"context"
  5	"crypto/ecdsa"
  6	"encoding/binary"
  7	"math/big"
  8	"testing"
  9	"time"
 10
 11	ethCommon "github.com/ethereum/go-ethereum/common"
 12	ethCrypto "github.com/ethereum/go-ethereum/crypto"
 13	"github.com/hermeznetwork/hermez-node/common"
 14	"github.com/hermeznetwork/hermez-node/eth"
 15	"github.com/iden3/go-iden3-crypto/babyjub"
 16	"github.com/stretchr/testify/assert"
 17	"github.com/stretchr/testify/require"
 18)
 19
 20type timer struct {
 21	time int64
 22}
 23
 24func (t *timer) Time() int64 {
 25	currentTime := t.time
 26	t.time++
 27	return currentTime
 28}
 29
 30func TestClientInterface(t *testing.T) {
 31	var c eth.ClientInterface
 32	var timer timer
 33	clientSetup := NewClientSetupExample()
 34	client := NewClient(true, &timer, ethCommon.Address{}, clientSetup)
 35	c = client
 36	require.NotNil(t, c)
 37}
 38
 39func TestClientEth(t *testing.T) {
 40	var timer timer
 41	clientSetup := NewClientSetupExample()
 42	c := NewClient(true, &timer, ethCommon.Address{}, clientSetup)
 43	blockNum, err := c.EthCurrentBlock()
 44	require.Nil(t, err)
 45	assert.Equal(t, int64(0), blockNum)
 46
 47	block, err := c.EthBlockByNumber(context.TODO(), 0)
 48	require.Nil(t, err)
 49	assert.Equal(t, int64(0), block.EthBlockNum)
 50	assert.Equal(t, time.Unix(0, 0), block.Timestamp)
 51	assert.Equal(t, "0x0000000000000000000000000000000000000000000000000000000000000000", block.Hash.Hex())
 52	assert.Equal(t, int64(0), c.blockNum)
 53
 54	// Mine some empty blocks
 55
 56	c.CtlMineBlock()
 57	assert.Equal(t, int64(1), c.blockNum)
 58	c.CtlMineBlock()
 59	assert.Equal(t, int64(2), c.blockNum)
 60
 61	block, err = c.EthBlockByNumber(context.TODO(), 2)
 62	require.Nil(t, err)
 63	assert.Equal(t, int64(2), block.EthBlockNum)
 64	assert.Equal(t, time.Unix(2, 0), block.Timestamp)
 65}
 66
 67func TestClientAuction(t *testing.T) {
 68	addrWithdraw := ethCommon.HexToAddress("0x6b175474e89094c44da98b954eedeac495271d0f")
 69	addrForge := ethCommon.HexToAddress("0xCfAA413eEb796f328620a3630Ae39124cabcEa92")
 70	addrForge2 := ethCommon.HexToAddress("0x1fCb4ac309428feCc61B1C8cA5823C15A5e1a800")
 71	token1Addr := ethCommon.HexToAddress("0x6b175474e89094c44da98b954eedeac495271d0f")
 72
 73	var timer timer
 74	clientSetup := NewClientSetupExample()
 75	clientSetup.AuctionVariables.ClosedAuctionSlots = 2
 76	clientSetup.AuctionVariables.OpenAuctionSlots = 4320
 77	clientSetup.AuctionVariables.DefaultSlotSetBid = [6]*big.Int{
 78		big.NewInt(1000), big.NewInt(1100), big.NewInt(1200),
 79		big.NewInt(1300), big.NewInt(1400), big.NewInt(1500)}
 80	c := NewClient(true, &timer, addrWithdraw, clientSetup)
 81
 82	// Check several cases in which bid doesn't succed, and also do 2 successful bids.
 83
 84	_, err := c.AuctionBid(0, big.NewInt(1), addrForge, token1Addr)
 85	assert.Equal(t, errBidClosed, err)
 86
 87	_, err = c.AuctionBid(4322, big.NewInt(1), addrForge, token1Addr)
 88	assert.Equal(t, errBidNotOpen, err)
 89
 90	// 101 % 6 = 5;  defaultSlotSetBid[5] = 1500;  1500 + 10% = 1650
 91	_, err = c.AuctionBid(101, big.NewInt(1650), addrForge, token1Addr)
 92	assert.Equal(t, errCoordNotReg, err)
 93
 94	_, err = c.AuctionRegisterCoordinator(addrForge, "https://foo.bar")
 95	assert.Nil(t, err)
 96
 97	_, err = c.AuctionBid(3, big.NewInt(1), addrForge, token1Addr)
 98	assert.Equal(t, errBidBelowMin, err)
 99
100	_, err = c.AuctionBid(3, big.NewInt(1650), addrForge, token1Addr)
101	assert.Nil(t, err)
102
103	_, err = c.AuctionRegisterCoordinator(addrForge2, "https://foo2.bar")
104	assert.Nil(t, err)
105
106	_, err = c.AuctionBid(3, big.NewInt(16), addrForge2, token1Addr)
107	assert.Equal(t, errBidBelowMin, err)
108
109	// 1650 + 10% = 1815
110	_, err = c.AuctionBid(3, big.NewInt(1815), addrForge2, token1Addr)
111	assert.Nil(t, err)
112
113	c.CtlMineBlock()
114
115	blockNum, err := c.EthCurrentBlock()
116	require.Nil(t, err)
117
118	auctionEvents, _, err := c.AuctionEventsByBlock(blockNum)
119	require.Nil(t, err)
120	assert.Equal(t, 2, len(auctionEvents.NewBid))
121}
122
123func TestClientRollup(t *testing.T) {
124	token1Addr := ethCommon.HexToAddress("0x6b175474e89094c44da98b954eedeac495271d0f")
125
126	var timer timer
127	clientSetup := NewClientSetupExample()
128	c := NewClient(true, &timer, ethCommon.Address{}, clientSetup)
129
130	// Add a token
131
132	tx, err := c.RollupAddToken(token1Addr)
133	require.Nil(t, err)
134	assert.NotNil(t, tx)
135
136	// Add some L1UserTxs
137	// Create Accounts
138
139	const N = 16
140	var keys [N]*keys
141	for i := 0; i < N; i++ {
142		keys[i] = genKeys(int64(i))
143		l1UserTx := common.L1Tx{
144			FromIdx:     common.Idx(0),
145			FromEthAddr: keys[i].Addr,
146			FromBJJ:     keys[i].BJJPublicKey,
147			TokenID:     common.TokenID(0),
148			LoadAmount:  big.NewInt(10 + int64(i)),
149		}
150		c.CtlAddL1TxUser(&l1UserTx)
151	}
152	c.CtlMineBlock()
153
154	blockNum, err := c.EthCurrentBlock()
155	require.Nil(t, err)
156	rollupEvents, _, err := c.RollupEventsByBlock(blockNum)
157	require.Nil(t, err)
158	assert.Equal(t, N, len(rollupEvents.L1UserTx))
159	assert.Equal(t, 1, len(rollupEvents.AddToken))
160
161	// Forge a batch
162
163	c.CtlAddBatch(&eth.RollupForgeBatchArgs{
164		NewLastIdx:        0,
165		NewStRoot:         big.NewInt(1),
166		NewExitRoot:       big.NewInt(100),
167		L1CoordinatorTxs:  []*common.L1Tx{},
168		L2Txs:             []*common.L2Tx{},
169		FeeIdxCoordinator: make([]common.Idx, eth.FeeIdxCoordinatorLen),
170		VerifierIdx:       0,
171		L1Batch:           true,
172	})
173	c.CtlMineBlock()
174
175	blockNumA, err := c.EthCurrentBlock()
176	require.Nil(t, err)
177	rollupEvents, hashA, err := c.RollupEventsByBlock(blockNumA)
178	require.Nil(t, err)
179	assert.Equal(t, 0, len(rollupEvents.L1UserTx))
180	assert.Equal(t, 0, len(rollupEvents.AddToken))
181	assert.Equal(t, 1, len(rollupEvents.ForgeBatch))
182
183	// Simulate reorg discarding last mined block
184
185	c.CtlRollback()
186	c.CtlMineBlock()
187
188	blockNumB, err := c.EthCurrentBlock()
189	require.Nil(t, err)
190	rollupEvents, hashB, err := c.RollupEventsByBlock(blockNumA)
191	require.Nil(t, err)
192	assert.Equal(t, 0, len(rollupEvents.L1UserTx))
193	assert.Equal(t, 0, len(rollupEvents.AddToken))
194	assert.Equal(t, 0, len(rollupEvents.ForgeBatch))
195
196	assert.Equal(t, blockNumA, blockNumB)
197	assert.NotEqual(t, hashA, hashB)
198
199	// Forge again
200	rollupForgeBatchArgs0 := &eth.RollupForgeBatchArgs{
201		NewLastIdx:        0,
202		NewStRoot:         big.NewInt(1),
203		NewExitRoot:       big.NewInt(100),
204		L1CoordinatorTxs:  []*common.L1Tx{},
205		L2Txs:             []*common.L2Tx{},
206		FeeIdxCoordinator: make([]common.Idx, eth.FeeIdxCoordinatorLen),
207		VerifierIdx:       0,
208		L1Batch:           true,
209	}
210	c.CtlAddBatch(rollupForgeBatchArgs0)
211	c.CtlMineBlock()
212
213	// Retrieve ForgeBatchArguments starting from the events
214
215	blockNum, err = c.EthCurrentBlock()
216	require.Nil(t, err)
217	rollupEvents, _, err = c.RollupEventsByBlock(blockNum)
218	require.Nil(t, err)
219
220	rollupForgeBatchArgs1, err := c.RollupForgeBatchArgs(rollupEvents.ForgeBatch[0].EthTxHash)
221	require.Nil(t, err)
222	assert.Equal(t, rollupForgeBatchArgs0, rollupForgeBatchArgs1)
223}
224
225type keys struct {
226	BJJSecretKey *babyjub.PrivateKey
227	BJJPublicKey *babyjub.PublicKey
228	Addr         ethCommon.Address
229}
230
231func genKeys(i int64) *keys {
232	i++ // i = 0 doesn't work for the ecdsa key generation
233	var sk babyjub.PrivateKey
234	binary.LittleEndian.PutUint64(sk[:], uint64(i))
235
236	// eth address
237	var key ecdsa.PrivateKey
238	key.D = big.NewInt(i) // only for testing
239	key.PublicKey.X, key.PublicKey.Y = ethCrypto.S256().ScalarBaseMult(key.D.Bytes())
240	key.Curve = ethCrypto.S256()
241	addr := ethCrypto.PubkeyToAddress(key.PublicKey)
242
243	return &keys{
244		BJJSecretKey: &sk,
245		BJJPublicKey: sk.Public(),
246		Addr:         addr,
247	}
248}