github.com/gochain-io/gochain@v2.2.26+incompatible/les/helper_test.go (about) 1 // Copyright 2016 The go-ethereum Authors 2 // This file is part of the go-ethereum library. 3 // 4 // The go-ethereum library is free software: you can redistribute it and/or modify 5 // it under the terms of the GNU Lesser General Public License as published by 6 // the Free Software Foundation, either version 3 of the License, or 7 // (at your option) any later version. 8 // 9 // The go-ethereum library is distributed in the hope that it will be useful, 10 // but WITHOUT ANY WARRANTY; without even the implied warranty of 11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 // GNU Lesser General Public License for more details. 13 // 14 // You should have received a copy of the GNU Lesser General Public License 15 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. 16 17 // This file contains some shares testing functionality, common to multiple 18 // different files and modules being tested. 19 20 package les 21 22 import ( 23 "context" 24 "crypto/rand" 25 "math/big" 26 "sync" 27 "testing" 28 29 "github.com/gochain-io/gochain/common" 30 "github.com/gochain-io/gochain/common/hexutil" 31 "github.com/gochain-io/gochain/consensus/clique" 32 "github.com/gochain-io/gochain/core" 33 "github.com/gochain-io/gochain/core/types" 34 "github.com/gochain-io/gochain/core/vm" 35 "github.com/gochain-io/gochain/crypto" 36 "github.com/gochain-io/gochain/eth" 37 "github.com/gochain-io/gochain/event" 38 "github.com/gochain-io/gochain/les/flowcontrol" 39 "github.com/gochain-io/gochain/light" 40 "github.com/gochain-io/gochain/p2p" 41 "github.com/gochain-io/gochain/p2p/discover" 42 "github.com/gochain-io/gochain/params" 43 ) 44 45 var ( 46 testBankKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291") 47 testBankAddress = crypto.PubkeyToAddress(testBankKey.PublicKey) 48 testBankFunds = big.NewInt(1000000000000000000) 49 50 acc1Key, _ = crypto.HexToECDSA("8a1f9a8f95be41cd7ccb6168179afb4504aefe388d1e14474d32c45c72ce7b7a") 51 acc2Key, _ = crypto.HexToECDSA("49a7b37aa6f6645917e7b807e9d1c00d4fa71f18343b0d4122a4d2df64dd6fee") 52 acc1Addr = crypto.PubkeyToAddress(acc1Key.PublicKey) 53 acc2Addr = crypto.PubkeyToAddress(acc2Key.PublicKey) 54 55 testContractCode = common.Hex2Bytes("606060405260cc8060106000396000f360606040526000357c01000000000000000000000000000000000000000000000000000000009004806360cd2685146041578063c16431b914606b57603f565b005b6055600480803590602001909190505060a9565b6040518082815260200191505060405180910390f35b60886004808035906020019091908035906020019091905050608a565b005b80600060005083606481101560025790900160005b50819055505b5050565b6000600060005082606481101560025790900160005b5054905060c7565b91905056") 56 testContractAddr common.Address 57 testContractCodeDeployed = testContractCode[16:] 58 testContractDeployed = uint64(2) 59 60 testEventEmitterCode = common.Hex2Bytes("60606040523415600e57600080fd5b7f57050ab73f6b9ebdd9f76b8d4997793f48cf956e965ee070551b9ca0bb71584e60405160405180910390a160358060476000396000f3006060604052600080fd00a165627a7a723058203f727efcad8b5811f8cb1fc2620ce5e8c63570d697aef968172de296ea3994140029") 61 testEventEmitterAddr common.Address 62 63 testBufLimit = uint64(100) 64 ) 65 66 /* 67 contract test { 68 69 uint256[100] data; 70 71 function Put(uint256 addr, uint256 value) { 72 data[addr] = value; 73 } 74 75 function Get(uint256 addr) constant returns (uint256 value) { 76 return data[addr]; 77 } 78 } 79 */ 80 81 func testChainGen(ctx context.Context, i int, block *core.BlockGen) { 82 signer := types.HomesteadSigner{} 83 84 switch i { 85 case 0: 86 // In block 1, the test bank sends account #1 some ether. 87 tx, _ := types.SignTx(types.NewTransaction(block.TxNonce(testBankAddress), acc1Addr, big.NewInt(10000), params.TxGas, nil, nil), signer, testBankKey) 88 block.AddTx(ctx, tx) 89 case 1: 90 // In block 2, the test bank sends some more ether to account #1. 91 // acc1Addr passes it on to account #2. 92 // acc1Addr creates a test contract. 93 // acc1Addr creates a test event. 94 nonce := block.TxNonce(acc1Addr) 95 96 tx1, _ := types.SignTx(types.NewTransaction(block.TxNonce(testBankAddress), acc1Addr, big.NewInt(1000), params.TxGas, nil, nil), signer, testBankKey) 97 tx2, _ := types.SignTx(types.NewTransaction(nonce, acc2Addr, big.NewInt(1000), params.TxGas, nil, nil), signer, acc1Key) 98 tx3, _ := types.SignTx(types.NewContractCreation(nonce+1, big.NewInt(0), 200000, big.NewInt(0), testContractCode), signer, acc1Key) 99 testContractAddr = crypto.CreateAddress(acc1Addr, nonce+1) 100 tx4, _ := types.SignTx(types.NewContractCreation(nonce+2, big.NewInt(0), 200000, big.NewInt(0), testEventEmitterCode), signer, acc1Key) 101 testEventEmitterAddr = crypto.CreateAddress(acc1Addr, nonce+2) 102 block.AddTx(ctx, tx1) 103 block.AddTx(ctx, tx2) 104 block.AddTx(ctx, tx3) 105 block.AddTx(ctx, tx4) 106 case 2: 107 // Block 3 is empty but was mined by account #2. 108 block.SetCoinbase(acc2Addr) 109 block.SetExtra([]byte("yeehaw")) 110 data := common.Hex2Bytes("C16431B900000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000001") 111 tx, _ := types.SignTx(types.NewTransaction(block.TxNonce(testBankAddress), testContractAddr, big.NewInt(0), 100000, nil, data), signer, testBankKey) 112 block.AddTx(ctx, tx) 113 case 3: 114 // Block 4 includes modified extra data. 115 b2 := block.PrevBlock(1).Header() 116 b2.Extra = []byte("foo") 117 b3 := block.PrevBlock(2).Header() 118 b3.Extra = []byte("foo") 119 data := common.Hex2Bytes("C16431B900000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002") 120 tx, _ := types.SignTx(types.NewTransaction(block.TxNonce(testBankAddress), testContractAddr, big.NewInt(0), 100000, nil, data), signer, testBankKey) 121 block.AddTx(ctx, tx) 122 } 123 } 124 125 func testRCL() RequestCostList { 126 cl := make(RequestCostList, len(reqList)) 127 for i, code := range reqList { 128 cl[i].MsgCode = code 129 cl[i].BaseCost = 0 130 cl[i].ReqCost = 0 131 } 132 return cl 133 } 134 135 // newTestProtocolManager creates a new protocol manager for testing purposes, 136 // with the given number of blocks already known, and potential notification 137 // channels for different events. 138 func newTestProtocolManager(ctx context.Context, lightSync bool, blocks int, generator func(context.Context, int, *core.BlockGen), peers *peerSet, odr *LesOdr, db common.Database) (*ProtocolManager, error) { 139 var ( 140 evmux = new(event.TypeMux) 141 engine = clique.NewFaker() 142 gspec = core.Genesis{ 143 Config: params.TestChainConfig, 144 Alloc: core.GenesisAlloc{testBankAddress: {Balance: testBankFunds}}, 145 Voters: []common.Address{{}}, 146 Signers: []common.Address{{}}, 147 Signer: hexutil.MustDecode("0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"), 148 } 149 genesis = gspec.MustCommit(db) 150 chain BlockChain 151 ) 152 if peers == nil { 153 peers = newPeerSet() 154 } 155 156 if lightSync { 157 chain, _ = light.NewLightChain(odr, gspec.Config, engine) 158 } else { 159 blockchain, _ := core.NewBlockChain(ctx, db, nil, gspec.Config, engine, vm.Config{}) 160 161 chtIndexer := light.NewChtIndexer(db, false) 162 chtIndexer.Start(blockchain) 163 164 bbtIndexer := light.NewBloomTrieIndexer(db, false) 165 166 bloomIndexer := eth.NewBloomIndexer(db, params.BloomBitsBlocks) 167 bloomIndexer.AddChildIndexer(bbtIndexer) 168 bloomIndexer.Start(blockchain) 169 170 gchain, _ := core.GenerateChain(ctx, gspec.Config, genesis, clique.NewFaker(), db, blocks, generator) 171 if _, err := blockchain.InsertChain(ctx, gchain); err != nil { 172 panic(err) 173 } 174 chain = blockchain 175 } 176 177 var protocolVersions []uint 178 if lightSync { 179 protocolVersions = ClientProtocolVersions 180 } else { 181 protocolVersions = ServerProtocolVersions 182 } 183 pm, err := NewProtocolManager(ctx, gspec.Config, lightSync, protocolVersions, NetworkId, evmux, peers, chain, nil, db, odr, nil, make(chan struct{}), new(sync.WaitGroup)) 184 if err != nil { 185 return nil, err 186 } 187 if !lightSync { 188 srv := &LesServer{protocolManager: pm} 189 pm.server = srv 190 191 srv.defParams = &flowcontrol.ServerParams{ 192 BufLimit: testBufLimit, 193 MinRecharge: 1, 194 } 195 196 srv.fcManager = flowcontrol.NewClientManager(50, 10, 1000000000) 197 srv.fcCostStats = newCostStats(nil) 198 } 199 pm.Start(1000) 200 return pm, nil 201 } 202 203 // newTestProtocolManagerMust creates a new protocol manager for testing purposes, 204 // with the given number of blocks already known, and potential notification 205 // channels for different events. In case of an error, the constructor force- 206 // fails the test. 207 func newTestProtocolManagerMust(ctx context.Context, t *testing.T, lightSync bool, blocks int, generator func(context.Context, int, *core.BlockGen), peers *peerSet, odr *LesOdr, db common.Database) *ProtocolManager { 208 pm, err := newTestProtocolManager(ctx, lightSync, blocks, generator, peers, odr, db) 209 if err != nil { 210 t.Fatalf("Failed to create protocol manager: %v", err) 211 } 212 return pm 213 } 214 215 // testPeer is a simulated peer to allow testing direct network calls. 216 type testPeer struct { 217 net p2p.MsgReadWriter // Network layer reader/writer to simulate remote messaging 218 app *p2p.MsgPipeRW // Application layer reader/writer to simulate the local side 219 *peer 220 } 221 222 // newTestPeer creates a new peer registered at the given protocol manager. 223 func newTestPeer(ctx context.Context, t *testing.T, name string, version int, pm *ProtocolManager, shake bool) (*testPeer, <-chan error) { 224 // Create a message pipe to communicate through 225 app, net := p2p.MsgPipe() 226 227 // Generate a random id and create the peer 228 var id discover.NodeID 229 rand.Read(id[:]) 230 231 peer := pm.newPeer(version, NetworkId, p2p.NewPeer(id, name, nil), net) 232 233 // Start the peer on a new thread 234 errc := make(chan error, 1) 235 go func() { 236 select { 237 case pm.newPeerCh <- peer: 238 errc <- pm.handle(ctx, peer) 239 case <-pm.quitSync: 240 errc <- p2p.DiscQuitting 241 } 242 }() 243 tp := &testPeer{ 244 app: app, 245 net: net, 246 peer: peer, 247 } 248 // Execute any implicitly requested handshakes and return 249 if shake { 250 var ( 251 genesis = pm.blockchain.Genesis() 252 head = pm.blockchain.CurrentHeader() 253 td = pm.blockchain.GetTd(head.Hash(), head.Number.Uint64()) 254 ) 255 tp.handshake(t, td, head.Hash(), head.Number.Uint64(), genesis.Hash()) 256 } 257 return tp, errc 258 } 259 260 func newTestPeerPair(ctx context.Context, name string, version int, pm, pm2 *ProtocolManager) (*peer, <-chan error, *peer, <-chan error) { 261 // Create a message pipe to communicate through 262 app, net := p2p.MsgPipe() 263 264 // Generate a random id and create the peer 265 var id discover.NodeID 266 rand.Read(id[:]) 267 268 peer := pm.newPeer(version, NetworkId, p2p.NewPeer(id, name, nil), net) 269 peer2 := pm2.newPeer(version, NetworkId, p2p.NewPeer(id, name, nil), app) 270 271 // Start the peer on a new thread 272 errc := make(chan error, 1) 273 errc2 := make(chan error, 1) 274 go func() { 275 select { 276 case pm.newPeerCh <- peer: 277 errc <- pm.handle(ctx, peer) 278 case <-pm.quitSync: 279 errc <- p2p.DiscQuitting 280 } 281 }() 282 go func() { 283 select { 284 case pm2.newPeerCh <- peer2: 285 errc2 <- pm2.handle(ctx, peer2) 286 case <-pm2.quitSync: 287 errc2 <- p2p.DiscQuitting 288 } 289 }() 290 return peer, errc, peer2, errc2 291 } 292 293 // handshake simulates a trivial handshake that expects the same state from the 294 // remote side as we are simulating locally. 295 func (p *testPeer) handshake(t *testing.T, td *big.Int, head common.Hash, headNum uint64, genesis common.Hash) { 296 var expList keyValueList 297 expList = expList.add("protocolVersion", uint64(p.version)) 298 expList = expList.add("networkId", uint64(NetworkId)) 299 expList = expList.add("headTd", td) 300 expList = expList.add("headHash", head) 301 expList = expList.add("headNum", headNum) 302 expList = expList.add("genesisHash", genesis) 303 sendList := make(keyValueList, len(expList)) 304 copy(sendList, expList) 305 expList = expList.add("serveHeaders", nil) 306 expList = expList.add("serveChainSince", uint64(0)) 307 expList = expList.add("serveStateSince", uint64(0)) 308 expList = expList.add("txRelay", nil) 309 expList = expList.add("flowControl/BL", testBufLimit) 310 expList = expList.add("flowControl/MRR", uint64(1)) 311 expList = expList.add("flowControl/MRC", testRCL()) 312 313 if err := p2p.ExpectMsg(p.app, StatusMsg, expList); err != nil { 314 t.Fatalf("status recv: %v", err) 315 } 316 if err := p2p.Send(p.app, StatusMsg, sendList); err != nil { 317 t.Fatalf("status send: %v", err) 318 } 319 320 p.fcServerParams = &flowcontrol.ServerParams{ 321 BufLimit: testBufLimit, 322 MinRecharge: 1, 323 } 324 } 325 326 // close terminates the local side of the peer, notifying the remote protocol 327 // manager of termination. 328 func (p *testPeer) close() { 329 p.app.Close() 330 }