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	addrBidder1 := ethCommon.HexToAddress("0x6b175474e89094c44da98b954eedeac495271d0f")
 69	addrBidder2 := ethCommon.HexToAddress("0xc27cadc437d067a6ec869502cc9f7F834cFc087a")
 70	addrForge := ethCommon.HexToAddress("0xCfAA413eEb796f328620a3630Ae39124cabcEa92")
 71	addrForge2 := ethCommon.HexToAddress("0x1fCb4ac309428feCc61B1C8cA5823C15A5e1a800")
 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, &addrBidder1, 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))
 85	assert.Equal(t, errBidClosed, err)
 86
 87	_, err = c.AuctionBid(4322, big.NewInt(1))
 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))
 92	assert.Equal(t, errCoordNotReg, err)
 93
 94	_, err = c.AuctionSetCoordinator(addrForge, "https://foo.bar")
 95	assert.Nil(t, err)
 96
 97	_, err = c.AuctionBid(3, big.NewInt(1))
 98	assert.Equal(t, errBidBelowMin, err)
 99
100	_, err = c.AuctionBid(3, big.NewInt(1650))
101	assert.Nil(t, err)
102
103	c.CtlSetAddr(addrBidder2)
104	_, err = c.AuctionSetCoordinator(addrForge2, "https://foo2.bar")
105	assert.Nil(t, err)
106
107	_, err = c.AuctionBid(3, big.NewInt(16))
108	assert.Equal(t, errBidBelowMin, err)
109
110	// 1650 + 10% = 1815
111	_, err = c.AuctionBid(3, big.NewInt(1815))
112	assert.Nil(t, err)
113
114	c.CtlMineBlock()
115
116	blockNum, err := c.EthCurrentBlock()
117	require.Nil(t, err)
118
119	auctionEvents, _, err := c.AuctionEventsByBlock(blockNum)
120	require.Nil(t, err)
121	assert.Equal(t, 2, len(auctionEvents.NewBid))
122}
123
124func TestClientRollup(t *testing.T) {
125	token1Addr := ethCommon.HexToAddress("0x6b175474e89094c44da98b954eedeac495271d0f")
126
127	var timer timer
128	clientSetup := NewClientSetupExample()
129	c := NewClient(true, &timer, &ethCommon.Address{}, clientSetup)
130
131	// Add a token
132
133	tx, err := c.RollupAddToken(token1Addr)
134	require.Nil(t, err)
135	assert.NotNil(t, tx)
136
137	// Add some L1UserTxs
138	// Create Accounts
139
140	const N = 16
141	var keys [N]*keys
142	for i := 0; i < N; i++ {
143		keys[i] = genKeys(int64(i))
144		l1UserTx := common.L1Tx{
145			FromIdx:     nil,
146			FromEthAddr: keys[i].Addr,
147			FromBJJ:     keys[i].BJJPublicKey,
148			TokenID:     common.TokenID(0),
149			LoadAmount:  big.NewInt(10 + int64(i)),
150		}
151		c.CtlAddL1TxUser(&l1UserTx)
152	}
153	c.CtlMineBlock()
154
155	blockNum, err := c.EthCurrentBlock()
156	require.Nil(t, err)
157	rollupEvents, _, err := c.RollupEventsByBlock(blockNum)
158	require.Nil(t, err)
159	assert.Equal(t, N, len(rollupEvents.L1UserTx))
160	assert.Equal(t, 1, len(rollupEvents.AddToken))
161
162	// Forge a batch
163
164	c.CtlAddBatch(&eth.RollupForgeBatchArgs{
165		NewLastIdx:        0,
166		NewStRoot:         big.NewInt(1),
167		NewExitRoot:       big.NewInt(100),
168		L1CoordinatorTxs:  []*common.L1Tx{},
169		L2TxsData:         []*common.L2Tx{},
170		FeeIdxCoordinator: make([]common.Idx, eth.RollupConstFeeIdxCoordinatorLen),
171		VerifierIdx:       0,
172		L1Batch:           true,
173	})
174	c.CtlMineBlock()
175
176	blockNumA, err := c.EthCurrentBlock()
177	require.Nil(t, err)
178	rollupEvents, hashA, err := c.RollupEventsByBlock(blockNumA)
179	require.Nil(t, err)
180	assert.Equal(t, 0, len(rollupEvents.L1UserTx))
181	assert.Equal(t, 0, len(rollupEvents.AddToken))
182	assert.Equal(t, 1, len(rollupEvents.ForgeBatch))
183
184	// Simulate reorg discarding last mined block
185
186	c.CtlRollback()
187	c.CtlMineBlock()
188
189	blockNumB, err := c.EthCurrentBlock()
190	require.Nil(t, err)
191	rollupEvents, hashB, err := c.RollupEventsByBlock(blockNumA)
192	require.Nil(t, err)
193	assert.Equal(t, 0, len(rollupEvents.L1UserTx))
194	assert.Equal(t, 0, len(rollupEvents.AddToken))
195	assert.Equal(t, 0, len(rollupEvents.ForgeBatch))
196
197	assert.Equal(t, blockNumA, blockNumB)
198	assert.NotEqual(t, hashA, hashB)
199
200	// Forge again
201	rollupForgeBatchArgs0 := &eth.RollupForgeBatchArgs{
202		NewLastIdx:        0,
203		NewStRoot:         big.NewInt(1),
204		NewExitRoot:       big.NewInt(100),
205		L1CoordinatorTxs:  []*common.L1Tx{},
206		L2TxsData:         []*common.L2Tx{},
207		FeeIdxCoordinator: make([]common.Idx, eth.RollupConstFeeIdxCoordinatorLen),
208		VerifierIdx:       0,
209		L1Batch:           true,
210	}
211	c.CtlAddBatch(rollupForgeBatchArgs0)
212	c.CtlMineBlock()
213
214	// Retrieve ForgeBatchArguments starting from the events
215
216	blockNum, err = c.EthCurrentBlock()
217	require.Nil(t, err)
218	rollupEvents, _, err = c.RollupEventsByBlock(blockNum)
219	require.Nil(t, err)
220
221	rollupForgeBatchArgs1, err := c.RollupForgeBatchArgs(rollupEvents.ForgeBatch[0].EthTxHash)
222	require.Nil(t, err)
223	assert.Equal(t, rollupForgeBatchArgs0, rollupForgeBatchArgs1)
224}
225
226type keys struct {
227	BJJSecretKey *babyjub.PrivateKey
228	BJJPublicKey *babyjub.PublicKey
229	Addr         ethCommon.Address
230}
231
232func genKeys(i int64) *keys {
233	i++ // i = 0 doesn't work for the ecdsa key generation
234	var sk babyjub.PrivateKey
235	binary.LittleEndian.PutUint64(sk[:], uint64(i))
236
237	// eth address
238	var key ecdsa.PrivateKey
239	key.D = big.NewInt(i) // only for testing
240	key.PublicKey.X, key.PublicKey.Y = ethCrypto.S256().ScalarBaseMult(key.D.Bytes())
241	key.Curve = ethCrypto.S256()
242	addr := ethCrypto.PubkeyToAddress(key.PublicKey)
243
244	return &keys{
245		BJJSecretKey: &sk,
246		BJJPublicKey: sk.Public(),
247		Addr:         addr,
248	}
249}