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	// Add a token
 67	tokenAddr := ethCommon.HexToAddress("0x44021007485550008e0f9f1f7b506c7d970ad8ce")
 68	constants := eth.ERC20Consts{
 69		Name:     "FooBar",
 70		Symbol:   "FOO",
 71		Decimals: 4,
 72	}
 73	c.CtlAddERC20(tokenAddr, constants)
 74	c.CtlMineBlock()
 75	tokenConstants, err := c.EthERC20Consts(tokenAddr)
 76	require.Nil(t, err)
 77	assert.Equal(t, constants, *tokenConstants)
 78}
 79
 80func TestClientAuction(t *testing.T) {
 81	addrWithdraw := ethCommon.HexToAddress("0x6b175474e89094c44da98b954eedeac495271d0f")
 82	addrForge := ethCommon.HexToAddress("0xCfAA413eEb796f328620a3630Ae39124cabcEa92")
 83	addrForge2 := ethCommon.HexToAddress("0x1fCb4ac309428feCc61B1C8cA5823C15A5e1a800")
 84
 85	var timer timer
 86	clientSetup := NewClientSetupExample()
 87	clientSetup.AuctionVariables.ClosedAuctionSlots = 2
 88	clientSetup.AuctionVariables.OpenAuctionSlots = 4320
 89	clientSetup.AuctionVariables.DefaultSlotSetBid = [6]*big.Int{
 90		big.NewInt(1000), big.NewInt(1100), big.NewInt(1200),
 91		big.NewInt(1300), big.NewInt(1400), big.NewInt(1500)}
 92	c := NewClient(true, &timer, &addrWithdraw, clientSetup)
 93
 94	// Check several cases in which bid doesn't succed, and also do 2 successful bids.
 95
 96	_, err := c.AuctionBid(0, big.NewInt(1), addrForge)
 97	assert.Equal(t, errBidClosed, err)
 98
 99	_, err = c.AuctionBid(4322, big.NewInt(1), addrForge)
100	assert.Equal(t, errBidNotOpen, err)
101
102	// 101 % 6 = 5;  defaultSlotSetBid[5] = 1500;  1500 + 10% = 1650
103	_, err = c.AuctionBid(101, big.NewInt(1650), addrForge)
104	assert.Equal(t, errCoordNotReg, err)
105
106	_, err = c.AuctionRegisterCoordinator(addrForge, "https://foo.bar")
107	assert.Nil(t, err)
108
109	_, err = c.AuctionBid(3, big.NewInt(1), addrForge)
110	assert.Equal(t, errBidBelowMin, err)
111
112	_, err = c.AuctionBid(3, big.NewInt(1650), addrForge)
113	assert.Nil(t, err)
114
115	_, err = c.AuctionRegisterCoordinator(addrForge2, "https://foo2.bar")
116	assert.Nil(t, err)
117
118	_, err = c.AuctionBid(3, big.NewInt(16), addrForge2)
119	assert.Equal(t, errBidBelowMin, err)
120
121	// 1650 + 10% = 1815
122	_, err = c.AuctionBid(3, big.NewInt(1815), addrForge2)
123	assert.Nil(t, err)
124
125	c.CtlMineBlock()
126
127	blockNum, err := c.EthCurrentBlock()
128	require.Nil(t, err)
129
130	auctionEvents, _, err := c.AuctionEventsByBlock(blockNum)
131	require.Nil(t, err)
132	assert.Equal(t, 2, len(auctionEvents.NewBid))
133}
134
135func TestClientRollup(t *testing.T) {
136	token1Addr := ethCommon.HexToAddress("0x6b175474e89094c44da98b954eedeac495271d0f")
137
138	var timer timer
139	clientSetup := NewClientSetupExample()
140	c := NewClient(true, &timer, &ethCommon.Address{}, clientSetup)
141
142	// Add a token
143
144	tx, err := c.RollupAddToken(token1Addr)
145	require.Nil(t, err)
146	assert.NotNil(t, tx)
147
148	// Add some L1UserTxs
149	// Create Accounts
150
151	const N = 16
152	var keys [N]*keys
153	for i := 0; i < N; i++ {
154		keys[i] = genKeys(int64(i))
155		l1UserTx := common.L1Tx{
156			FromIdx:     nil,
157			FromEthAddr: keys[i].Addr,
158			FromBJJ:     keys[i].BJJPublicKey,
159			TokenID:     common.TokenID(0),
160			LoadAmount:  big.NewInt(10 + int64(i)),
161		}
162		c.CtlAddL1TxUser(&l1UserTx)
163	}
164	c.CtlMineBlock()
165
166	blockNum, err := c.EthCurrentBlock()
167	require.Nil(t, err)
168	rollupEvents, _, err := c.RollupEventsByBlock(blockNum)
169	require.Nil(t, err)
170	assert.Equal(t, N, len(rollupEvents.L1UserTx))
171	assert.Equal(t, 1, len(rollupEvents.AddToken))
172
173	// Forge a batch
174
175	c.CtlAddBatch(&eth.RollupForgeBatchArgs{
176		NewLastIdx:        0,
177		NewStRoot:         big.NewInt(1),
178		NewExitRoot:       big.NewInt(100),
179		L1CoordinatorTxs:  []*common.L1Tx{},
180		L2Txs:             []*common.L2Tx{},
181		FeeIdxCoordinator: make([]common.Idx, eth.FeeIdxCoordinatorLen),
182		VerifierIdx:       0,
183		L1Batch:           true,
184	})
185	c.CtlMineBlock()
186
187	blockNumA, err := c.EthCurrentBlock()
188	require.Nil(t, err)
189	rollupEvents, hashA, 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, 1, len(rollupEvents.ForgeBatch))
194
195	// Simulate reorg discarding last mined block
196
197	c.CtlRollback()
198	c.CtlMineBlock()
199
200	blockNumB, err := c.EthCurrentBlock()
201	require.Nil(t, err)
202	rollupEvents, hashB, err := c.RollupEventsByBlock(blockNumA)
203	require.Nil(t, err)
204	assert.Equal(t, 0, len(rollupEvents.L1UserTx))
205	assert.Equal(t, 0, len(rollupEvents.AddToken))
206	assert.Equal(t, 0, len(rollupEvents.ForgeBatch))
207
208	assert.Equal(t, blockNumA, blockNumB)
209	assert.NotEqual(t, hashA, hashB)
210
211	// Forge again
212	rollupForgeBatchArgs0 := &eth.RollupForgeBatchArgs{
213		NewLastIdx:        0,
214		NewStRoot:         big.NewInt(1),
215		NewExitRoot:       big.NewInt(100),
216		L1CoordinatorTxs:  []*common.L1Tx{},
217		L2Txs:             []*common.L2Tx{},
218		FeeIdxCoordinator: make([]common.Idx, eth.FeeIdxCoordinatorLen),
219		VerifierIdx:       0,
220		L1Batch:           true,
221	}
222	c.CtlAddBatch(rollupForgeBatchArgs0)
223	c.CtlMineBlock()
224
225	// Retrieve ForgeBatchArguments starting from the events
226
227	blockNum, err = c.EthCurrentBlock()
228	require.Nil(t, err)
229	rollupEvents, _, err = c.RollupEventsByBlock(blockNum)
230	require.Nil(t, err)
231
232	rollupForgeBatchArgs1, err := c.RollupForgeBatchArgs(rollupEvents.ForgeBatch[0].EthTxHash)
233	require.Nil(t, err)
234	assert.Equal(t, rollupForgeBatchArgs0, rollupForgeBatchArgs1)
235}
236
237type keys struct {
238	BJJSecretKey *babyjub.PrivateKey
239	BJJPublicKey *babyjub.PublicKey
240	Addr         ethCommon.Address
241}
242
243func genKeys(i int64) *keys {
244	i++ // i = 0 doesn't work for the ecdsa key generation
245	var sk babyjub.PrivateKey
246	binary.LittleEndian.PutUint64(sk[:], uint64(i))
247
248	// eth address
249	var key ecdsa.PrivateKey
250	key.D = big.NewInt(i) // only for testing
251	key.PublicKey.X, key.PublicKey.Y = ethCrypto.S256().ScalarBaseMult(key.D.Bytes())
252	key.Curve = ethCrypto.S256()
253	addr := ethCrypto.PubkeyToAddress(key.PublicKey)
254
255	return &keys{
256		BJJSecretKey: &sk,
257		BJJPublicKey: sk.Public(),
258		Addr:         addr,
259	}
260}