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	addrBidder1 := ethCommon.HexToAddress("0x6b175474e89094c44da98b954eedeac495271d0f")
 82	addrBidder2 := ethCommon.HexToAddress("0xc27cadc437d067a6ec869502cc9f7F834cFc087a")
 83	addrForge := ethCommon.HexToAddress("0xCfAA413eEb796f328620a3630Ae39124cabcEa92")
 84	addrForge2 := ethCommon.HexToAddress("0x1fCb4ac309428feCc61B1C8cA5823C15A5e1a800")
 85
 86	var timer timer
 87	clientSetup := NewClientSetupExample()
 88	clientSetup.AuctionVariables.ClosedAuctionSlots = 2
 89	clientSetup.AuctionVariables.OpenAuctionSlots = 4320
 90	clientSetup.AuctionVariables.DefaultSlotSetBid = [6]*big.Int{
 91		big.NewInt(1000), big.NewInt(1100), big.NewInt(1200),
 92		big.NewInt(1300), big.NewInt(1400), big.NewInt(1500)}
 93	c := NewClient(true, &timer, &addrBidder1, clientSetup)
 94
 95	// Check several cases in which bid doesn't succed, and also do 2 successful bids.
 96
 97	_, err := c.AuctionBid(0, big.NewInt(1))
 98	assert.Equal(t, errBidClosed, err)
 99
100	_, err = c.AuctionBid(4322, big.NewInt(1))
101	assert.Equal(t, errBidNotOpen, err)
102
103	// 101 % 6 = 5;  defaultSlotSetBid[5] = 1500;  1500 + 10% = 1650
104	_, err = c.AuctionBid(101, big.NewInt(1650))
105	assert.Equal(t, errCoordNotReg, err)
106
107	_, err = c.AuctionSetCoordinator(addrForge, "https://foo.bar")
108	assert.Nil(t, err)
109
110	_, err = c.AuctionBid(3, big.NewInt(1))
111	assert.Equal(t, errBidBelowMin, err)
112
113	_, err = c.AuctionBid(3, big.NewInt(1650))
114	assert.Nil(t, err)
115
116	c.CtlSetAddr(addrBidder2)
117	_, err = c.AuctionSetCoordinator(addrForge2, "https://foo2.bar")
118	assert.Nil(t, err)
119
120	_, err = c.AuctionBid(3, big.NewInt(16))
121	assert.Equal(t, errBidBelowMin, err)
122
123	// 1650 + 10% = 1815
124	_, err = c.AuctionBid(3, big.NewInt(1815))
125	assert.Nil(t, err)
126
127	c.CtlMineBlock()
128
129	blockNum, err := c.EthCurrentBlock()
130	require.Nil(t, err)
131
132	auctionEvents, _, err := c.AuctionEventsByBlock(blockNum)
133	require.Nil(t, err)
134	assert.Equal(t, 2, len(auctionEvents.NewBid))
135}
136
137func TestClientRollup(t *testing.T) {
138	token1Addr := ethCommon.HexToAddress("0x6b175474e89094c44da98b954eedeac495271d0f")
139
140	var timer timer
141	clientSetup := NewClientSetupExample()
142	c := NewClient(true, &timer, &ethCommon.Address{}, clientSetup)
143
144	// Add a token
145
146	tx, err := c.RollupAddToken(token1Addr)
147	require.Nil(t, err)
148	assert.NotNil(t, tx)
149
150	// Add some L1UserTxs
151	// Create Accounts
152
153	const N = 16
154	var keys [N]*keys
155	for i := 0; i < N; i++ {
156		keys[i] = genKeys(int64(i))
157		l1UserTx := common.L1Tx{
158			FromIdx:     nil,
159			FromEthAddr: keys[i].Addr,
160			FromBJJ:     keys[i].BJJPublicKey,
161			TokenID:     common.TokenID(0),
162			LoadAmount:  big.NewInt(10 + int64(i)),
163		}
164		c.CtlAddL1TxUser(&l1UserTx)
165	}
166	c.CtlMineBlock()
167
168	blockNum, err := c.EthCurrentBlock()
169	require.Nil(t, err)
170	rollupEvents, _, err := c.RollupEventsByBlock(blockNum)
171	require.Nil(t, err)
172	assert.Equal(t, N, len(rollupEvents.L1UserTx))
173	assert.Equal(t, 1, len(rollupEvents.AddToken))
174
175	// Forge a batch
176
177	c.CtlAddBatch(&eth.RollupForgeBatchArgs{
178		NewLastIdx:        0,
179		NewStRoot:         big.NewInt(1),
180		NewExitRoot:       big.NewInt(100),
181		L1CoordinatorTxs:  []*common.L1Tx{},
182		L2TxsData:         []*common.L2Tx{},
183		FeeIdxCoordinator: make([]common.Idx, eth.RollupConstFeeIdxCoordinatorLen),
184		VerifierIdx:       0,
185		L1Batch:           true,
186	})
187	c.CtlMineBlock()
188
189	blockNumA, err := c.EthCurrentBlock()
190	require.Nil(t, err)
191	rollupEvents, hashA, 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, 1, len(rollupEvents.ForgeBatch))
196
197	// Simulate reorg discarding last mined block
198
199	c.CtlRollback()
200	c.CtlMineBlock()
201
202	blockNumB, err := c.EthCurrentBlock()
203	require.Nil(t, err)
204	rollupEvents, hashB, err := c.RollupEventsByBlock(blockNumA)
205	require.Nil(t, err)
206	assert.Equal(t, 0, len(rollupEvents.L1UserTx))
207	assert.Equal(t, 0, len(rollupEvents.AddToken))
208	assert.Equal(t, 0, len(rollupEvents.ForgeBatch))
209
210	assert.Equal(t, blockNumA, blockNumB)
211	assert.NotEqual(t, hashA, hashB)
212
213	// Forge again
214	rollupForgeBatchArgs0 := &eth.RollupForgeBatchArgs{
215		NewLastIdx:        0,
216		NewStRoot:         big.NewInt(1),
217		NewExitRoot:       big.NewInt(100),
218		L1CoordinatorTxs:  []*common.L1Tx{},
219		L2TxsData:         []*common.L2Tx{},
220		FeeIdxCoordinator: make([]common.Idx, eth.RollupConstFeeIdxCoordinatorLen),
221		VerifierIdx:       0,
222		L1Batch:           true,
223	}
224	c.CtlAddBatch(rollupForgeBatchArgs0)
225	c.CtlMineBlock()
226
227	// Retrieve ForgeBatchArguments starting from the events
228
229	blockNum, err = c.EthCurrentBlock()
230	require.Nil(t, err)
231	rollupEvents, _, err = c.RollupEventsByBlock(blockNum)
232	require.Nil(t, err)
233
234	rollupForgeBatchArgs1, err := c.RollupForgeBatchArgs(rollupEvents.ForgeBatch[0].EthTxHash)
235	require.Nil(t, err)
236	assert.Equal(t, rollupForgeBatchArgs0, rollupForgeBatchArgs1)
237}
238
239type keys struct {
240	BJJSecretKey *babyjub.PrivateKey
241	BJJPublicKey *babyjub.PublicKey
242	Addr         ethCommon.Address
243}
244
245func genKeys(i int64) *keys {
246	i++ // i = 0 doesn't work for the ecdsa key generation
247	var sk babyjub.PrivateKey
248	binary.LittleEndian.PutUint64(sk[:], uint64(i))
249
250	// eth address
251	var key ecdsa.PrivateKey
252	key.D = big.NewInt(i) // only for testing
253	key.PublicKey.X, key.PublicKey.Y = ethCrypto.S256().ScalarBaseMult(key.D.Bytes())
254	key.Curve = ethCrypto.S256()
255	addr := ethCrypto.PubkeyToAddress(key.PublicKey)
256
257	return &keys{
258		BJJSecretKey: &sk,
259		BJJPublicKey: sk.Public(),
260		Addr:         addr,
261	}
262}