diff options
author | Sonic <sonic@dexon.org> | 2018-11-05 11:26:27 +0800 |
---|---|---|
committer | Wei-Ning Huang <w@dexon.org> | 2019-04-09 21:32:52 +0800 |
commit | d9957d3bd4ec2b8b2f936d12a722942313a46076 (patch) | |
tree | 6530a5274edca63eece264d57228eb9274968398 /core/chain_makers_test.go | |
parent | 993bced1877026e6a96c7768bbc482199e270527 (diff) | |
download | dexon-d9957d3bd4ec2b8b2f936d12a722942313a46076.tar dexon-d9957d3bd4ec2b8b2f936d12a722942313a46076.tar.gz dexon-d9957d3bd4ec2b8b2f936d12a722942313a46076.tar.bz2 dexon-d9957d3bd4ec2b8b2f936d12a722942313a46076.tar.lz dexon-d9957d3bd4ec2b8b2f936d12a722942313a46076.tar.xz dexon-d9957d3bd4ec2b8b2f936d12a722942313a46076.tar.zst dexon-d9957d3bd4ec2b8b2f936d12a722942313a46076.zip |
core: GenerateChainWithRoundChange for testing
Diffstat (limited to 'core/chain_makers_test.go')
-rw-r--r-- | core/chain_makers_test.go | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/core/chain_makers_test.go b/core/chain_makers_test.go index 0be6625d9..c240ed824 100644 --- a/core/chain_makers_test.go +++ b/core/chain_makers_test.go @@ -17,6 +17,7 @@ package core import ( + "crypto/ecdsa" "fmt" "math/big" @@ -98,3 +99,112 @@ func ExampleGenerateChain() { // balance of addr2: 10000 // balance of addr3: 19687500000000001000 } + +func ExampleGenerateChainWithRoundChange() { + var ( + // genesis node set + nodekey1, _ = crypto.HexToECDSA("3cf5bdee098cc34536a7b0e80d85e07a380efca76fc12136299b9e5ba24193c8") + nodekey2, _ = crypto.HexToECDSA("96c9f1435d53577db18d45411326311529a0e8affb19218e27f65769a482c0fb") + nodekey3, _ = crypto.HexToECDSA("b25e955e30dd87cbaec83287beea6ec9c4c72498bc66905590756bf48da5d1fc") + nodekey4, _ = crypto.HexToECDSA("35577f65312f4a5e0b5391f5385043a6bc7b51fa4851a579e845b5fea33efded") + nodeaddr1 = crypto.PubkeyToAddress(nodekey1.PublicKey) + nodeaddr2 = crypto.PubkeyToAddress(nodekey2.PublicKey) + nodeaddr3 = crypto.PubkeyToAddress(nodekey3.PublicKey) + nodeaddr4 = crypto.PubkeyToAddress(nodekey4.PublicKey) + + key1, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291") + key2, _ = crypto.HexToECDSA("8a1f9a8f95be41cd7ccb6168179afb4504aefe388d1e14474d32c45c72ce7b7a") + key3, _ = crypto.HexToECDSA("49a7b37aa6f6645917e7b807e9d1c00d4fa71f18343b0d4122a4d2df64dd6fee") + addr1 = crypto.PubkeyToAddress(key1.PublicKey) + addr2 = crypto.PubkeyToAddress(key2.PublicKey) + addr3 = crypto.PubkeyToAddress(key3.PublicKey) + + db = ethdb.NewMemDatabase() + ) + + ether := big.NewInt(1e18) + gspec := Genesis{ + Config: params.TestnetChainConfig, + Alloc: GenesisAlloc{ + nodeaddr1: { + Balance: new(big.Int).Mul(big.NewInt(1000), ether), + Staked: new(big.Int).Mul(big.NewInt(500), ether), + PublicKey: crypto.FromECDSAPub(&nodekey1.PublicKey), + }, + nodeaddr2: { + Balance: new(big.Int).Mul(big.NewInt(1000), ether), + Staked: new(big.Int).Mul(big.NewInt(500), ether), + PublicKey: crypto.FromECDSAPub(&nodekey2.PublicKey), + }, + nodeaddr3: { + Balance: new(big.Int).Mul(big.NewInt(1000), ether), + Staked: new(big.Int).Mul(big.NewInt(500), ether), + PublicKey: crypto.FromECDSAPub(&nodekey3.PublicKey), + }, + nodeaddr4: { + Balance: new(big.Int).Mul(big.NewInt(1000), ether), + Staked: new(big.Int).Mul(big.NewInt(500), ether), + PublicKey: crypto.FromECDSAPub(&nodekey4.PublicKey), + }, + addr1: { + Balance: big.NewInt(1000000), + }, + }, + } + genesis := gspec.MustCommit(db) + crs := crypto.Keccak256Hash([]byte(gspec.Config.Dexcon.GenesisCRSText)) + signer := types.NewEIP155Signer(gspec.Config.ChainID) + nodeSet := NewNodeSet(uint64(0), crs, signer, + []*ecdsa.PrivateKey{nodekey1, nodekey2, nodekey3, nodekey4}) + + // This call generates a chain of 1000 blocks. The function runs for + // each block and adds different features to gen based on the + // block index. + chain, _ := GenerateChainWithRoundChange(gspec.Config, genesis, ethash.NewFaker(), db, 1000, func(i int, gen *BlockGen) { + switch i { + case 0: + // In block 1, addr1 sends addr2 some ether. + tx, _ := types.SignTx(types.NewTransaction(gen.TxNonce(addr1), addr2, big.NewInt(10000), params.TxGas, nil, nil), signer, key1) + gen.AddTx(tx) + case 1: + // In block 2, addr1 sends some more ether to addr2. + // addr2 passes it on to addr3. + tx1, _ := types.SignTx(types.NewTransaction(gen.TxNonce(addr1), addr2, big.NewInt(1000), params.TxGas, nil, nil), signer, key1) + tx2, _ := types.SignTx(types.NewTransaction(gen.TxNonce(addr2), addr3, big.NewInt(1000), params.TxGas, nil, nil), signer, key2) + gen.AddTx(tx1) + gen.AddTx(tx2) + case 2: + // Block 3 is empty but was mined by addr3. + gen.SetCoinbase(addr3) + gen.SetExtra([]byte("yeehaw")) + case 3: + // Block 4 includes blocks 2 and 3 as uncle headers (with modified extra data). + b2 := gen.PrevBlock(1).Header() + b2.Extra = []byte("foo") + gen.AddUncle(b2) + b3 := gen.PrevBlock(2).Header() + b3.Extra = []byte("foo") + gen.AddUncle(b3) + } + }, nodeSet, 30) + + // Import the chain. This runs all block validation rules. + blockchain, _ := NewBlockChain(db, nil, gspec.Config, ethash.NewFaker(), vm.Config{}) + defer blockchain.Stop() + + if i, err := blockchain.InsertChain(chain); err != nil { + fmt.Printf("insert error (block %d): %v\n", chain[i].NumberU64(), err) + return + } + + state, _ := blockchain.State() + fmt.Printf("last block: #%d\n", blockchain.CurrentBlock().Number()) + fmt.Println("balance of addr1:", state.GetBalance(addr1)) + fmt.Println("balance of addr2:", state.GetBalance(addr2)) + fmt.Println("balance of addr3:", state.GetBalance(addr3)) + // Output: + // last block: #5 + // balance of addr1: 989000 + // balance of addr2: 10000 + // balance of addr3: 19687500000000001000 +} |