github.com/Ethersocial/go-esn@v0.3.7/core/state/state_test.go (about) 1 // Copyright 2014 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 package state 18 19 import ( 20 "bytes" 21 "math/big" 22 "testing" 23 24 "github.com/ethersocial/go-esn/common" 25 "github.com/ethersocial/go-esn/crypto" 26 "github.com/ethersocial/go-esn/ethdb" 27 checker "gopkg.in/check.v1" 28 ) 29 30 type StateSuite struct { 31 db *ethdb.MemDatabase 32 state *StateDB 33 } 34 35 var _ = checker.Suite(&StateSuite{}) 36 37 var toAddr = common.BytesToAddress 38 39 func (s *StateSuite) TestDump(c *checker.C) { 40 // generate a few entries 41 obj1 := s.state.GetOrNewStateObject(toAddr([]byte{0x01})) 42 obj1.AddBalance(big.NewInt(22)) 43 obj2 := s.state.GetOrNewStateObject(toAddr([]byte{0x01, 0x02})) 44 obj2.SetCode(crypto.Keccak256Hash([]byte{3, 3, 3, 3, 3, 3, 3}), []byte{3, 3, 3, 3, 3, 3, 3}) 45 obj3 := s.state.GetOrNewStateObject(toAddr([]byte{0x02})) 46 obj3.SetBalance(big.NewInt(44)) 47 48 // write some of them to the trie 49 s.state.updateStateObject(obj1) 50 s.state.updateStateObject(obj2) 51 s.state.Commit(false) 52 53 // check that dump contains the state objects that are in trie 54 got := string(s.state.Dump()) 55 want := `{ 56 "root": "71edff0130dd2385947095001c73d9e28d862fc286fca2b922ca6f6f3cddfdd2", 57 "accounts": { 58 "0000000000000000000000000000000000000001": { 59 "balance": "22", 60 "nonce": 0, 61 "root": "56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421", 62 "codeHash": "c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", 63 "code": "", 64 "storage": {} 65 }, 66 "0000000000000000000000000000000000000002": { 67 "balance": "44", 68 "nonce": 0, 69 "root": "56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421", 70 "codeHash": "c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", 71 "code": "", 72 "storage": {} 73 }, 74 "0000000000000000000000000000000000000102": { 75 "balance": "0", 76 "nonce": 0, 77 "root": "56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421", 78 "codeHash": "87874902497a5bb968da31a2998d8f22e949d1ef6214bcdedd8bae24cca4b9e3", 79 "code": "03030303030303", 80 "storage": {} 81 } 82 } 83 }` 84 if got != want { 85 c.Errorf("dump mismatch:\ngot: %s\nwant: %s\n", got, want) 86 } 87 } 88 89 func (s *StateSuite) SetUpTest(c *checker.C) { 90 s.db = ethdb.NewMemDatabase() 91 s.state, _ = New(common.Hash{}, NewDatabase(s.db)) 92 } 93 94 func (s *StateSuite) TestNull(c *checker.C) { 95 address := common.HexToAddress("0x823140710bf13990e4500136726d8b55") 96 s.state.CreateAccount(address) 97 //value := common.FromHex("0x823140710bf13990e4500136726d8b55") 98 var value common.Hash 99 100 s.state.SetState(address, common.Hash{}, value) 101 s.state.Commit(false) 102 103 if value := s.state.GetState(address, common.Hash{}); value != (common.Hash{}) { 104 c.Errorf("expected empty current value, got %x", value) 105 } 106 if value := s.state.GetCommittedState(address, common.Hash{}); value != (common.Hash{}) { 107 c.Errorf("expected empty committed value, got %x", value) 108 } 109 } 110 111 func (s *StateSuite) TestSnapshot(c *checker.C) { 112 stateobjaddr := toAddr([]byte("aa")) 113 var storageaddr common.Hash 114 data1 := common.BytesToHash([]byte{42}) 115 data2 := common.BytesToHash([]byte{43}) 116 117 // snapshot the genesis state 118 genesis := s.state.Snapshot() 119 120 // set initial state object value 121 s.state.SetState(stateobjaddr, storageaddr, data1) 122 snapshot := s.state.Snapshot() 123 124 // set a new state object value, revert it and ensure correct content 125 s.state.SetState(stateobjaddr, storageaddr, data2) 126 s.state.RevertToSnapshot(snapshot) 127 128 c.Assert(s.state.GetState(stateobjaddr, storageaddr), checker.DeepEquals, data1) 129 c.Assert(s.state.GetCommittedState(stateobjaddr, storageaddr), checker.DeepEquals, common.Hash{}) 130 131 // revert up to the genesis state and ensure correct content 132 s.state.RevertToSnapshot(genesis) 133 c.Assert(s.state.GetState(stateobjaddr, storageaddr), checker.DeepEquals, common.Hash{}) 134 c.Assert(s.state.GetCommittedState(stateobjaddr, storageaddr), checker.DeepEquals, common.Hash{}) 135 } 136 137 func (s *StateSuite) TestSnapshotEmpty(c *checker.C) { 138 s.state.RevertToSnapshot(s.state.Snapshot()) 139 } 140 141 // use testing instead of checker because checker does not support 142 // printing/logging in tests (-check.vv does not work) 143 func TestSnapshot2(t *testing.T) { 144 state, _ := New(common.Hash{}, NewDatabase(ethdb.NewMemDatabase())) 145 146 stateobjaddr0 := toAddr([]byte("so0")) 147 stateobjaddr1 := toAddr([]byte("so1")) 148 var storageaddr common.Hash 149 150 data0 := common.BytesToHash([]byte{17}) 151 data1 := common.BytesToHash([]byte{18}) 152 153 state.SetState(stateobjaddr0, storageaddr, data0) 154 state.SetState(stateobjaddr1, storageaddr, data1) 155 156 // db, trie are already non-empty values 157 so0 := state.getStateObject(stateobjaddr0) 158 so0.SetBalance(big.NewInt(42)) 159 so0.SetNonce(43) 160 so0.SetCode(crypto.Keccak256Hash([]byte{'c', 'a', 'f', 'e'}), []byte{'c', 'a', 'f', 'e'}) 161 so0.suicided = false 162 so0.deleted = false 163 state.setStateObject(so0) 164 165 root, _ := state.Commit(false) 166 state.Reset(root) 167 168 // and one with deleted == true 169 so1 := state.getStateObject(stateobjaddr1) 170 so1.SetBalance(big.NewInt(52)) 171 so1.SetNonce(53) 172 so1.SetCode(crypto.Keccak256Hash([]byte{'c', 'a', 'f', 'e', '2'}), []byte{'c', 'a', 'f', 'e', '2'}) 173 so1.suicided = true 174 so1.deleted = true 175 state.setStateObject(so1) 176 177 so1 = state.getStateObject(stateobjaddr1) 178 if so1 != nil { 179 t.Fatalf("deleted object not nil when getting") 180 } 181 182 snapshot := state.Snapshot() 183 state.RevertToSnapshot(snapshot) 184 185 so0Restored := state.getStateObject(stateobjaddr0) 186 // Update lazily-loaded values before comparing. 187 so0Restored.GetState(state.db, storageaddr) 188 so0Restored.Code(state.db) 189 // non-deleted is equal (restored) 190 compareStateObjects(so0Restored, so0, t) 191 192 // deleted should be nil, both before and after restore of state copy 193 so1Restored := state.getStateObject(stateobjaddr1) 194 if so1Restored != nil { 195 t.Fatalf("deleted object not nil after restoring snapshot: %+v", so1Restored) 196 } 197 } 198 199 func compareStateObjects(so0, so1 *stateObject, t *testing.T) { 200 if so0.Address() != so1.Address() { 201 t.Fatalf("Address mismatch: have %v, want %v", so0.address, so1.address) 202 } 203 if so0.Balance().Cmp(so1.Balance()) != 0 { 204 t.Fatalf("Balance mismatch: have %v, want %v", so0.Balance(), so1.Balance()) 205 } 206 if so0.Nonce() != so1.Nonce() { 207 t.Fatalf("Nonce mismatch: have %v, want %v", so0.Nonce(), so1.Nonce()) 208 } 209 if so0.data.Root != so1.data.Root { 210 t.Errorf("Root mismatch: have %x, want %x", so0.data.Root[:], so1.data.Root[:]) 211 } 212 if !bytes.Equal(so0.CodeHash(), so1.CodeHash()) { 213 t.Fatalf("CodeHash mismatch: have %v, want %v", so0.CodeHash(), so1.CodeHash()) 214 } 215 if !bytes.Equal(so0.code, so1.code) { 216 t.Fatalf("Code mismatch: have %v, want %v", so0.code, so1.code) 217 } 218 219 if len(so1.dirtyStorage) != len(so0.dirtyStorage) { 220 t.Errorf("Dirty storage size mismatch: have %d, want %d", len(so1.dirtyStorage), len(so0.dirtyStorage)) 221 } 222 for k, v := range so1.dirtyStorage { 223 if so0.dirtyStorage[k] != v { 224 t.Errorf("Dirty storage key %x mismatch: have %v, want %v", k, so0.dirtyStorage[k], v) 225 } 226 } 227 for k, v := range so0.dirtyStorage { 228 if so1.dirtyStorage[k] != v { 229 t.Errorf("Dirty storage key %x mismatch: have %v, want none.", k, v) 230 } 231 } 232 if len(so1.originStorage) != len(so0.originStorage) { 233 t.Errorf("Origin storage size mismatch: have %d, want %d", len(so1.originStorage), len(so0.originStorage)) 234 } 235 for k, v := range so1.originStorage { 236 if so0.originStorage[k] != v { 237 t.Errorf("Origin storage key %x mismatch: have %v, want %v", k, so0.originStorage[k], v) 238 } 239 } 240 for k, v := range so0.originStorage { 241 if so1.originStorage[k] != v { 242 t.Errorf("Origin storage key %x mismatch: have %v, want none.", k, v) 243 } 244 } 245 }