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
 72	var timer timer
 73	clientSetup := NewClientSetupExample()
 74	clientSetup.AuctionVariables.ClosedAuctionSlots = 2
 75	clientSetup.AuctionVariables.OpenAuctionSlots = 4320
 76	clientSetup.AuctionVariables.DefaultSlotSetBid = [6]*big.Int{
 77		big.NewInt(1000), big.NewInt(1100), big.NewInt(1200),
 78		big.NewInt(1300), big.NewInt(1400), big.NewInt(1500)}
 79	c := NewClient(true, &timer, &addrWithdraw, clientSetup)
 80
 81	// Check several cases in which bid doesn't succed, and also do 2 successful bids.
 82
 83	_, err := c.AuctionBid(0, big.NewInt(1), addrForge)
 84	assert.Equal(t, errBidClosed, err)
 85
 86	_, err = c.AuctionBid(4322, big.NewInt(1), addrForge)
 87	assert.Equal(t, errBidNotOpen, err)
 88
 89	// 101 % 6 = 5;  defaultSlotSetBid[5] = 1500;  1500 + 10% = 1650
 90	_, err = c.AuctionBid(101, big.NewInt(1650), addrForge)
 91	assert.Equal(t, errCoordNotReg, err)
 92
 93	_, err = c.AuctionRegisterCoordinator(addrForge, "https://foo.bar")
 94	assert.Nil(t, err)
 95
 96	_, err = c.AuctionBid(3, big.NewInt(1), addrForge)
 97	assert.Equal(t, errBidBelowMin, err)
 98
 99	_, err = c.AuctionBid(3, big.NewInt(1650), addrForge)
100	assert.Nil(t, err)
101
102	_, err = c.AuctionRegisterCoordinator(addrForge2, "https://foo2.bar")
103	assert.Nil(t, err)
104
105	_, err = c.AuctionBid(3, big.NewInt(16), addrForge2)
106	assert.Equal(t, errBidBelowMin, err)
107
108	// 1650 + 10% = 1815
109	_, err = c.AuctionBid(3, big.NewInt(1815), addrForge2)
110	assert.Nil(t, err)
111
112	c.CtlMineBlock()
113
114	blockNum, err := c.EthCurrentBlock()
115	require.Nil(t, err)
116
117	auctionEvents, _, err := c.AuctionEventsByBlock(blockNum)
118	require.Nil(t, err)
119	assert.Equal(t, 2, len(auctionEvents.NewBid))
120}
121
122func TestClientRollup(t *testing.T) {
123	token1Addr := ethCommon.HexToAddress("0x6b175474e89094c44da98b954eedeac495271d0f")
124
125	var timer timer
126	clientSetup := NewClientSetupExample()
127	c := NewClient(true, &timer, &ethCommon.Address{}, clientSetup)
128
129	// Add a token
130
131	tx, err := c.RollupAddToken(token1Addr)
132	require.Nil(t, err)
133	assert.NotNil(t, tx)
134
135	// Add some L1UserTxs
136	// Create Accounts
137
138	const N = 16
139	var keys [N]*keys
140	for i := 0; i < N; i++ {
141		keys[i] = genKeys(int64(i))
142		l1UserTx := common.L1Tx{
143			FromIdx:     common.Idx(0),
144			FromEthAddr: keys[i].Addr,
145			FromBJJ:     keys[i].BJJPublicKey,
146			TokenID:     common.TokenID(0),
147			LoadAmount:  big.NewInt(10 + int64(i)),
148		}
149		c.CtlAddL1TxUser(&l1UserTx)
150	}
151	c.CtlMineBlock()
152
153	blockNum, err := c.EthCurrentBlock()
154	require.Nil(t, err)
155	rollupEvents, _, err := c.RollupEventsByBlock(blockNum)
156	require.Nil(t, err)
157	assert.Equal(t, N, len(rollupEvents.L1UserTx))
158	assert.Equal(t, 1, len(rollupEvents.AddToken))
159
160	// Forge a batch
161
162	c.CtlAddBatch(&eth.RollupForgeBatchArgs{
163		NewLastIdx:        0,
164		NewStRoot:         big.NewInt(1),
165		NewExitRoot:       big.NewInt(100),
166		L1CoordinatorTxs:  []*common.L1Tx{},
167		L2Txs:             []*common.L2Tx{},
168		FeeIdxCoordinator: make([]common.Idx, eth.FeeIdxCoordinatorLen),
169		VerifierIdx:       0,
170		L1Batch:           true,
171	})
172	c.CtlMineBlock()
173
174	blockNumA, err := c.EthCurrentBlock()
175	require.Nil(t, err)
176	rollupEvents, hashA, err := c.RollupEventsByBlock(blockNumA)
177	require.Nil(t, err)
178	assert.Equal(t, 0, len(rollupEvents.L1UserTx))
179	assert.Equal(t, 0, len(rollupEvents.AddToken))
180	assert.Equal(t, 1, len(rollupEvents.ForgeBatch))
181
182	// Simulate reorg discarding last mined block
183
184	c.CtlRollback()
185	c.CtlMineBlock()
186
187	blockNumB, err := c.EthCurrentBlock()
188	require.Nil(t, err)
189	rollupEvents, hashB, err := c.RollupEventsByBlock(blockNumA)
190	require.Nil(t, err)
191	assert.Equal(t, 0, len(rollupEvents.L1UserTx))
192	assert.Equal(t, 0, len(rollupEvents.AddToken))
193	assert.Equal(t, 0, len(rollupEvents.ForgeBatch))
194
195	assert.Equal(t, blockNumA, blockNumB)
196	assert.NotEqual(t, hashA, hashB)
197
198	// Forge again
199	rollupForgeBatchArgs0 := &eth.RollupForgeBatchArgs{
200		NewLastIdx:        0,
201		NewStRoot:         big.NewInt(1),
202		NewExitRoot:       big.NewInt(100),
203		L1CoordinatorTxs:  []*common.L1Tx{},
204		L2Txs:             []*common.L2Tx{},
205		FeeIdxCoordinator: make([]common.Idx, eth.FeeIdxCoordinatorLen),
206		VerifierIdx:       0,
207		L1Batch:           true,
208	}
209	c.CtlAddBatch(rollupForgeBatchArgs0)
210	c.CtlMineBlock()
211
212	// Retrieve ForgeBatchArguments starting from the events
213
214	blockNum, err = c.EthCurrentBlock()
215	require.Nil(t, err)
216	rollupEvents, _, err = c.RollupEventsByBlock(blockNum)
217	require.Nil(t, err)
218
219	rollupForgeBatchArgs1, err := c.RollupForgeBatchArgs(rollupEvents.ForgeBatch[0].EthTxHash)
220	require.Nil(t, err)
221	assert.Equal(t, rollupForgeBatchArgs0, rollupForgeBatchArgs1)
222}
223
224type keys struct {
225	BJJSecretKey *babyjub.PrivateKey
226	BJJPublicKey *babyjub.PublicKey
227	Addr         ethCommon.Address
228}
229
230func genKeys(i int64) *keys {
231	i++ // i = 0 doesn't work for the ecdsa key generation
232	var sk babyjub.PrivateKey
233	binary.LittleEndian.PutUint64(sk[:], uint64(i))
234
235	// eth address
236	var key ecdsa.PrivateKey
237	key.D = big.NewInt(i) // only for testing
238	key.PublicKey.X, key.PublicKey.Y = ethCrypto.S256().ScalarBaseMult(key.D.Bytes())
239	key.Curve = ethCrypto.S256()
240	addr := ethCrypto.PubkeyToAddress(key.PublicKey)
241
242	return &keys{
243		BJJSecretKey: &sk,
244		BJJPublicKey: sk.Public(),
245		Addr:         addr,
246	}
247}