github.com/tirogen/go-ethereum@v1.10.12-0.20221226051715-250cfede41b6/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/tirogen/go-ethereum/common"
    25  	"github.com/tirogen/go-ethereum/core/rawdb"
    26  	"github.com/tirogen/go-ethereum/crypto"
    27  	"github.com/tirogen/go-ethereum/ethdb"
    28  	"github.com/tirogen/go-ethereum/trie"
    29  )
    30  
    31  type stateTest struct {
    32  	db    ethdb.Database
    33  	state *StateDB
    34  }
    35  
    36  func newStateTest() *stateTest {
    37  	db := rawdb.NewMemoryDatabase()
    38  	sdb, _ := New(common.Hash{}, NewDatabase(db), nil)
    39  	return &stateTest{db: db, state: sdb}
    40  }
    41  
    42  func TestDump(t *testing.T) {
    43  	db := rawdb.NewMemoryDatabase()
    44  	sdb, _ := New(common.Hash{}, NewDatabaseWithConfig(db, &trie.Config{Preimages: true}), nil)
    45  	s := &stateTest{db: db, state: sdb}
    46  
    47  	// generate a few entries
    48  	obj1 := s.state.GetOrNewStateObject(common.BytesToAddress([]byte{0x01}))
    49  	obj1.AddBalance(big.NewInt(22))
    50  	obj2 := s.state.GetOrNewStateObject(common.BytesToAddress([]byte{0x01, 0x02}))
    51  	obj2.SetCode(crypto.Keccak256Hash([]byte{3, 3, 3, 3, 3, 3, 3}), []byte{3, 3, 3, 3, 3, 3, 3})
    52  	obj3 := s.state.GetOrNewStateObject(common.BytesToAddress([]byte{0x02}))
    53  	obj3.SetBalance(big.NewInt(44))
    54  
    55  	// write some of them to the trie
    56  	s.state.updateStateObject(obj1)
    57  	s.state.updateStateObject(obj2)
    58  	s.state.Commit(false)
    59  
    60  	// check that DumpToCollector contains the state objects that are in trie
    61  	got := string(s.state.Dump(nil))
    62  	want := `{
    63      "root": "71edff0130dd2385947095001c73d9e28d862fc286fca2b922ca6f6f3cddfdd2",
    64      "accounts": {
    65          "0x0000000000000000000000000000000000000001": {
    66              "balance": "22",
    67              "nonce": 0,
    68              "root": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
    69              "codeHash": "0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
    70              "key": "0x1468288056310c82aa4c01a7e12a10f8111a0560e72b700555479031b86c357d"
    71          },
    72          "0x0000000000000000000000000000000000000002": {
    73              "balance": "44",
    74              "nonce": 0,
    75              "root": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
    76              "codeHash": "0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
    77              "key": "0xd52688a8f926c816ca1e079067caba944f158e764817b83fc43594370ca9cf62"
    78          },
    79          "0x0000000000000000000000000000000000000102": {
    80              "balance": "0",
    81              "nonce": 0,
    82              "root": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
    83              "codeHash": "0x87874902497a5bb968da31a2998d8f22e949d1ef6214bcdedd8bae24cca4b9e3",
    84              "code": "0x03030303030303",
    85              "key": "0xa17eacbc25cda025e81db9c5c62868822c73ce097cee2a63e33a2e41268358a1"
    86          }
    87      }
    88  }`
    89  	if got != want {
    90  		t.Errorf("DumpToCollector mismatch:\ngot: %s\nwant: %s\n", got, want)
    91  	}
    92  }
    93  
    94  func TestNull(t *testing.T) {
    95  	s := newStateTest()
    96  	address := common.HexToAddress("0x823140710bf13990e4500136726d8b55")
    97  	s.state.CreateAccount(address)
    98  	//value := common.FromHex("0x823140710bf13990e4500136726d8b55")
    99  	var value common.Hash
   100  
   101  	s.state.SetState(address, common.Hash{}, value)
   102  	s.state.Commit(false)
   103  
   104  	if value := s.state.GetState(address, common.Hash{}); value != (common.Hash{}) {
   105  		t.Errorf("expected empty current value, got %x", value)
   106  	}
   107  	if value := s.state.GetCommittedState(address, common.Hash{}); value != (common.Hash{}) {
   108  		t.Errorf("expected empty committed value, got %x", value)
   109  	}
   110  }
   111  
   112  func TestSnapshot(t *testing.T) {
   113  	stateobjaddr := common.BytesToAddress([]byte("aa"))
   114  	var storageaddr common.Hash
   115  	data1 := common.BytesToHash([]byte{42})
   116  	data2 := common.BytesToHash([]byte{43})
   117  	s := newStateTest()
   118  
   119  	// snapshot the genesis state
   120  	genesis := s.state.Snapshot()
   121  
   122  	// set initial state object value
   123  	s.state.SetState(stateobjaddr, storageaddr, data1)
   124  	snapshot := s.state.Snapshot()
   125  
   126  	// set a new state object value, revert it and ensure correct content
   127  	s.state.SetState(stateobjaddr, storageaddr, data2)
   128  	s.state.RevertToSnapshot(snapshot)
   129  
   130  	if v := s.state.GetState(stateobjaddr, storageaddr); v != data1 {
   131  		t.Errorf("wrong storage value %v, want %v", v, data1)
   132  	}
   133  	if v := s.state.GetCommittedState(stateobjaddr, storageaddr); v != (common.Hash{}) {
   134  		t.Errorf("wrong committed storage value %v, want %v", v, common.Hash{})
   135  	}
   136  
   137  	// revert up to the genesis state and ensure correct content
   138  	s.state.RevertToSnapshot(genesis)
   139  	if v := s.state.GetState(stateobjaddr, storageaddr); v != (common.Hash{}) {
   140  		t.Errorf("wrong storage value %v, want %v", v, common.Hash{})
   141  	}
   142  	if v := s.state.GetCommittedState(stateobjaddr, storageaddr); v != (common.Hash{}) {
   143  		t.Errorf("wrong committed storage value %v, want %v", v, common.Hash{})
   144  	}
   145  }
   146  
   147  func TestSnapshotEmpty(t *testing.T) {
   148  	s := newStateTest()
   149  	s.state.RevertToSnapshot(s.state.Snapshot())
   150  }
   151  
   152  func TestSnapshot2(t *testing.T) {
   153  	state, _ := New(common.Hash{}, NewDatabase(rawdb.NewMemoryDatabase()), nil)
   154  
   155  	stateobjaddr0 := common.BytesToAddress([]byte("so0"))
   156  	stateobjaddr1 := common.BytesToAddress([]byte("so1"))
   157  	var storageaddr common.Hash
   158  
   159  	data0 := common.BytesToHash([]byte{17})
   160  	data1 := common.BytesToHash([]byte{18})
   161  
   162  	state.SetState(stateobjaddr0, storageaddr, data0)
   163  	state.SetState(stateobjaddr1, storageaddr, data1)
   164  
   165  	// db, trie are already non-empty values
   166  	so0 := state.getStateObject(stateobjaddr0)
   167  	so0.SetBalance(big.NewInt(42))
   168  	so0.SetNonce(43)
   169  	so0.SetCode(crypto.Keccak256Hash([]byte{'c', 'a', 'f', 'e'}), []byte{'c', 'a', 'f', 'e'})
   170  	so0.suicided = false
   171  	so0.deleted = false
   172  	state.setStateObject(so0)
   173  
   174  	root, _ := state.Commit(false)
   175  	state, _ = New(root, state.db, state.snaps)
   176  
   177  	// and one with deleted == true
   178  	so1 := state.getStateObject(stateobjaddr1)
   179  	so1.SetBalance(big.NewInt(52))
   180  	so1.SetNonce(53)
   181  	so1.SetCode(crypto.Keccak256Hash([]byte{'c', 'a', 'f', 'e', '2'}), []byte{'c', 'a', 'f', 'e', '2'})
   182  	so1.suicided = true
   183  	so1.deleted = true
   184  	state.setStateObject(so1)
   185  
   186  	so1 = state.getStateObject(stateobjaddr1)
   187  	if so1 != nil {
   188  		t.Fatalf("deleted object not nil when getting")
   189  	}
   190  
   191  	snapshot := state.Snapshot()
   192  	state.RevertToSnapshot(snapshot)
   193  
   194  	so0Restored := state.getStateObject(stateobjaddr0)
   195  	// Update lazily-loaded values before comparing.
   196  	so0Restored.GetState(state.db, storageaddr)
   197  	so0Restored.Code(state.db)
   198  	// non-deleted is equal (restored)
   199  	compareStateObjects(so0Restored, so0, t)
   200  
   201  	// deleted should be nil, both before and after restore of state copy
   202  	so1Restored := state.getStateObject(stateobjaddr1)
   203  	if so1Restored != nil {
   204  		t.Fatalf("deleted object not nil after restoring snapshot: %+v", so1Restored)
   205  	}
   206  }
   207  
   208  func compareStateObjects(so0, so1 *stateObject, t *testing.T) {
   209  	if so0.Address() != so1.Address() {
   210  		t.Fatalf("Address mismatch: have %v, want %v", so0.address, so1.address)
   211  	}
   212  	if so0.Balance().Cmp(so1.Balance()) != 0 {
   213  		t.Fatalf("Balance mismatch: have %v, want %v", so0.Balance(), so1.Balance())
   214  	}
   215  	if so0.Nonce() != so1.Nonce() {
   216  		t.Fatalf("Nonce mismatch: have %v, want %v", so0.Nonce(), so1.Nonce())
   217  	}
   218  	if so0.data.Root != so1.data.Root {
   219  		t.Errorf("Root mismatch: have %x, want %x", so0.data.Root[:], so1.data.Root[:])
   220  	}
   221  	if !bytes.Equal(so0.CodeHash(), so1.CodeHash()) {
   222  		t.Fatalf("CodeHash mismatch: have %v, want %v", so0.CodeHash(), so1.CodeHash())
   223  	}
   224  	if !bytes.Equal(so0.code, so1.code) {
   225  		t.Fatalf("Code mismatch: have %v, want %v", so0.code, so1.code)
   226  	}
   227  
   228  	if len(so1.dirtyStorage) != len(so0.dirtyStorage) {
   229  		t.Errorf("Dirty storage size mismatch: have %d, want %d", len(so1.dirtyStorage), len(so0.dirtyStorage))
   230  	}
   231  	for k, v := range so1.dirtyStorage {
   232  		if so0.dirtyStorage[k] != v {
   233  			t.Errorf("Dirty storage key %x mismatch: have %v, want %v", k, so0.dirtyStorage[k], v)
   234  		}
   235  	}
   236  	for k, v := range so0.dirtyStorage {
   237  		if so1.dirtyStorage[k] != v {
   238  			t.Errorf("Dirty storage key %x mismatch: have %v, want none.", k, v)
   239  		}
   240  	}
   241  	if len(so1.originStorage) != len(so0.originStorage) {
   242  		t.Errorf("Origin storage size mismatch: have %d, want %d", len(so1.originStorage), len(so0.originStorage))
   243  	}
   244  	for k, v := range so1.originStorage {
   245  		if so0.originStorage[k] != v {
   246  			t.Errorf("Origin storage key %x mismatch: have %v, want %v", k, so0.originStorage[k], v)
   247  		}
   248  	}
   249  	for k, v := range so0.originStorage {
   250  		if so1.originStorage[k] != v {
   251  			t.Errorf("Origin storage key %x mismatch: have %v, want none.", k, v)
   252  		}
   253  	}
   254  }