// Copyright 2019 The go-ethereum Authors // This file is part of the go-ethereum library. // // The go-ethereum library is free software: you can redistribute it and/or modify // it under the terms of the GNU Lesser General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // The go-ethereum library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public License // along with the go-ethereum library. If not, see . package statediff_test import ( "bytes" "math/big" "sort" "testing" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/core/state" "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/rlp" "github.com/ethereum/go-ethereum/statediff" "github.com/ethereum/go-ethereum/statediff/testhelpers" ) // TODO: add test that filters on address var ( contractLeafKey []byte emptyDiffs = make([]statediff.StateNode, 0) emptyStorage = make([]statediff.StorageNode, 0) block0, block1, block2, block3 *types.Block builder statediff.Builder miningReward = int64(2000000000000000000) minerAddress = common.HexToAddress("0x0") minerLeafKey = testhelpers.AddressToLeafKey(minerAddress) balanceChange10000 = int64(10000) balanceChange1000 = int64(1000) block1BankBalance = int64(99990000) block1Account1Balance = int64(10000) block2Account2Balance = int64(1000) contractContractRoot = "0x821e2556a290c86405f8160a2d662042a431ba456b9db265c79bb837c04be5f0" newContractRoot = "0x71e0d14b2b93e5c7f9748e69e1fe5f17498a1c3ac3cec29f96af13d7f8a4e070" originalStorageLocation = common.HexToHash("0") originalStorageKey = crypto.Keccak256Hash(originalStorageLocation[:]).Bytes() newStorageLocation = common.HexToHash("2") newStorageKey = crypto.Keccak256Hash(newStorageLocation[:]).Bytes() originalStorageValue = common.Hex2Bytes("01") originalStorageLeafNode, _ = rlp.EncodeToBytes([]interface{}{ common.Hex2Bytes("20290decd9548b62a8d60345a988386fc84ba6bc95484008f6362f93160ef3e563"), originalStorageValue, }) updatedStorageLeafNode, _ = rlp.EncodeToBytes([]interface{}{ common.Hex2Bytes("390decd9548b62a8d60345a988386fc84ba6bc95484008f6362f93160ef3e563"), originalStorageValue, }) newStorageValue = common.Hex2Bytes("03") newStorageLeafNode, _ = rlp.EncodeToBytes([]interface{}{ common.Hex2Bytes("305787fa12a823e0f2b7631cc41b3ba8828b3321ca811111fa75cd3aa3bb5ace"), newStorageValue, }) bankAccountAtBlock0, _ = rlp.EncodeToBytes(state.Account{ Nonce: testhelpers.Nonce0, Balance: big.NewInt(testhelpers.TestBankFunds.Int64()), CodeHash: testhelpers.NullCodeHash.Bytes(), Root: testhelpers.EmptyContractRoot, }) bankAccountAtBlock0LeafNode, _ = rlp.EncodeToBytes([]interface{}{ common.Hex2Bytes("2000bf49f440a1cd0527e4d06e2765654c0f56452257516d793a9b8d604dcfdf2a"), bankAccountAtBlock0, }) account1AtBlock1, _ = rlp.EncodeToBytes(state.Account{ Nonce: testhelpers.Nonce0, Balance: big.NewInt(balanceChange10000), CodeHash: testhelpers.NullCodeHash.Bytes(), Root: testhelpers.EmptyContractRoot, }) account1AtBlock1LeafNode, _ = rlp.EncodeToBytes([]interface{}{ common.Hex2Bytes("3926db69aaced518e9b9f0f434a473e7174109c943548bb8f23be41ca76d9ad2"), account1AtBlock1, }) minerAccountAtBlock1, _ = rlp.EncodeToBytes(state.Account{ Nonce: testhelpers.Nonce0, Balance: big.NewInt(miningReward), CodeHash: testhelpers.NullCodeHash.Bytes(), Root: testhelpers.EmptyContractRoot, }) minerAccountAtBlock1LeafNode, _ = rlp.EncodeToBytes([]interface{}{ common.Hex2Bytes("3380c7b7ae81a58eb98d9c78de4a1fd7fd9535fc953ed2be602daaa41767312a"), minerAccountAtBlock1, }) bankAccountAtBlock1, _ = rlp.EncodeToBytes(state.Account{ Nonce: testhelpers.Nonce1, Balance: big.NewInt(testhelpers.TestBankFunds.Int64() - balanceChange10000), CodeHash: testhelpers.NullCodeHash.Bytes(), Root: testhelpers.EmptyContractRoot, }) bankAccountAtBlock1LeafNode, _ = rlp.EncodeToBytes([]interface{}{ common.Hex2Bytes("30bf49f440a1cd0527e4d06e2765654c0f56452257516d793a9b8d604dcfdf2a"), bankAccountAtBlock1, }) account2AtBlock2, _ = rlp.EncodeToBytes(state.Account{ Nonce: testhelpers.Nonce0, Balance: big.NewInt(balanceChange1000), CodeHash: testhelpers.NullCodeHash.Bytes(), Root: testhelpers.EmptyContractRoot, }) account2AtBlock2LeafNode, _ = rlp.EncodeToBytes([]interface{}{ common.Hex2Bytes("3957f3e2f04a0764c3a0491b175f69926da61efbcc8f61fa1455fd2d2b4cdd45"), account2AtBlock2, }) contractAccountAtBlock2, _ = rlp.EncodeToBytes(state.Account{ Nonce: testhelpers.Nonce1, Balance: big.NewInt(0), CodeHash: common.HexToHash("0x753f98a8d4328b15636e46f66f2cb4bc860100aa17967cc145fcd17d1d4710ea").Bytes(), Root: common.HexToHash(contractContractRoot), }) contractAccountAtBlock2LeafNode, _ = rlp.EncodeToBytes([]interface{}{ common.Hex2Bytes("3114658a74d9cc9f7acf2c5cd696c3494d7c344d78bfec3add0d91ec4e8d1c45"), contractAccountAtBlock2, }) bankAccountAtBlock2, _ = rlp.EncodeToBytes(state.Account{ Nonce: testhelpers.Nonce2, Balance: big.NewInt(block1BankBalance - balanceChange1000), CodeHash: testhelpers.NullCodeHash.Bytes(), Root: testhelpers.EmptyContractRoot, }) bankAccountAtBlock2LeafNode, _ = rlp.EncodeToBytes([]interface{}{ common.Hex2Bytes("30bf49f440a1cd0527e4d06e2765654c0f56452257516d793a9b8d604dcfdf2a"), bankAccountAtBlock2, }) account1AtBlock2, _ = rlp.EncodeToBytes(state.Account{ Nonce: testhelpers.Nonce2, Balance: big.NewInt(block1Account1Balance - balanceChange1000 + balanceChange1000), CodeHash: testhelpers.NullCodeHash.Bytes(), Root: testhelpers.EmptyContractRoot, }) account1AtBlock2LeafNode, _ = rlp.EncodeToBytes([]interface{}{ common.Hex2Bytes("3926db69aaced518e9b9f0f434a473e7174109c943548bb8f23be41ca76d9ad2"), account1AtBlock2, }) minerAccountAtBlock2, _ = rlp.EncodeToBytes(state.Account{ Nonce: testhelpers.Nonce0, Balance: big.NewInt(miningReward + miningReward), CodeHash: testhelpers.NullCodeHash.Bytes(), Root: testhelpers.EmptyContractRoot, }) minerAccountAtBlock2LeafNode, _ = rlp.EncodeToBytes([]interface{}{ common.Hex2Bytes("3380c7b7ae81a58eb98d9c78de4a1fd7fd9535fc953ed2be602daaa41767312a"), minerAccountAtBlock2, }) account2AtBlock3, _ = rlp.EncodeToBytes(state.Account{ Nonce: testhelpers.Nonce0, Balance: big.NewInt(block2Account2Balance + miningReward), CodeHash: testhelpers.NullCodeHash.Bytes(), Root: testhelpers.EmptyContractRoot, }) account2AtBlock3LeafNode, _ = rlp.EncodeToBytes([]interface{}{ common.Hex2Bytes("3957f3e2f04a0764c3a0491b175f69926da61efbcc8f61fa1455fd2d2b4cdd45"), account2AtBlock3, }) contractAccountAtBlock3, _ = rlp.EncodeToBytes(state.Account{ Nonce: testhelpers.Nonce1, Balance: big.NewInt(0), CodeHash: common.HexToHash("0x753f98a8d4328b15636e46f66f2cb4bc860100aa17967cc145fcd17d1d4710ea").Bytes(), Root: common.HexToHash(newContractRoot), }) contractAccountAtBlock3LeafNode, _ = rlp.EncodeToBytes([]interface{}{ common.Hex2Bytes("3114658a74d9cc9f7acf2c5cd696c3494d7c344d78bfec3add0d91ec4e8d1c45"), contractAccountAtBlock3, }) bankAccountAtBlock3, _ = rlp.EncodeToBytes(state.Account{ Nonce: testhelpers.Nonce3, Balance: big.NewInt(99989000), CodeHash: testhelpers.NullCodeHash.Bytes(), Root: testhelpers.EmptyContractRoot, }) bankAccountAtBlock3LeafNode, _ = rlp.EncodeToBytes([]interface{}{ common.Hex2Bytes("30bf49f440a1cd0527e4d06e2765654c0f56452257516d793a9b8d604dcfdf2a"), bankAccountAtBlock3, }) block1BranchNode, _ = rlp.EncodeToBytes([]interface{}{ crypto.Keccak256(bankAccountAtBlock1LeafNode), []byte{}, []byte{}, []byte{}, []byte{}, crypto.Keccak256(minerAccountAtBlock1LeafNode), []byte{}, []byte{}, []byte{}, []byte{}, []byte{}, []byte{}, []byte{}, []byte{}, crypto.Keccak256(account1AtBlock1LeafNode), []byte{}, []byte{}, }) block2BranchNode, _ = rlp.EncodeToBytes([]interface{}{ crypto.Keccak256(bankAccountAtBlock2LeafNode), []byte{}, []byte{}, []byte{}, []byte{}, crypto.Keccak256(minerAccountAtBlock2LeafNode), crypto.Keccak256(contractAccountAtBlock2LeafNode), []byte{}, []byte{}, []byte{}, []byte{}, []byte{}, crypto.Keccak256(account2AtBlock2LeafNode), []byte{}, crypto.Keccak256(account1AtBlock2LeafNode), []byte{}, []byte{}, }) block3BranchNode, _ = rlp.EncodeToBytes([]interface{}{ crypto.Keccak256(bankAccountAtBlock3LeafNode), []byte{}, []byte{}, []byte{}, []byte{}, crypto.Keccak256(minerAccountAtBlock2LeafNode), crypto.Keccak256(contractAccountAtBlock3LeafNode), []byte{}, []byte{}, []byte{}, []byte{}, []byte{}, crypto.Keccak256(account2AtBlock3LeafNode), []byte{}, crypto.Keccak256(account1AtBlock2LeafNode), []byte{}, []byte{}, }) block3StorageBranchNode, _ = rlp.EncodeToBytes([]interface{}{ []byte{}, []byte{}, crypto.Keccak256(updatedStorageLeafNode), []byte{}, crypto.Keccak256(newStorageLeafNode), []byte{}, []byte{}, []byte{}, []byte{}, []byte{}, []byte{}, []byte{}, []byte{}, []byte{}, []byte{}, []byte{}, []byte{}, }) ) func TestBuilder(t *testing.T) { BlockHashes, blockMap, chain := testhelpers.MakeChain(3, testhelpers.Genesis) contractLeafKey = testhelpers.AddressToLeafKey(testhelpers.ContractAddr) defer chain.Stop() block0 = blockMap[BlockHashes[3]] block1 = blockMap[BlockHashes[2]] block2 = blockMap[BlockHashes[1]] block3 = blockMap[BlockHashes[0]] params := statediff.Params{} builder = statediff.NewBuilder(chain.StateCache()) var tests = []struct { name string startingArguments statediff.Args expected *statediff.StateDiff }{ { "testEmptyDiff", statediff.Args{ OldStateRoot: block0.Root(), NewStateRoot: block0.Root(), BlockNumber: block0.Number(), BlockHash: block0.Hash(), }, &statediff.StateDiff{ BlockNumber: block0.Number(), BlockHash: block0.Hash(), Nodes: emptyDiffs, }, }, { "testBlock0", //10000 transferred from testBankAddress to account1Addr statediff.Args{ OldStateRoot: testhelpers.NullHash, NewStateRoot: block0.Root(), BlockNumber: block0.Number(), BlockHash: block0.Hash(), }, &statediff.StateDiff{ BlockNumber: block0.Number(), BlockHash: block0.Hash(), Nodes: []statediff.StateNode{ { Path: []byte{}, NodeType: statediff.Leaf, LeafKey: testhelpers.BankLeafKey, NodeValue: bankAccountAtBlock0LeafNode, StorageDiffs: emptyStorage, }, }, }, }, { "testBlock1", //10000 transferred from testBankAddress to account1Addr statediff.Args{ OldStateRoot: block0.Root(), NewStateRoot: block1.Root(), BlockNumber: block1.Number(), BlockHash: block1.Hash(), }, &statediff.StateDiff{ BlockNumber: block1.Number(), BlockHash: block1.Hash(), Nodes: []statediff.StateNode{ { Path: []byte{'\x00'}, NodeType: statediff.Leaf, LeafKey: testhelpers.BankLeafKey, NodeValue: bankAccountAtBlock1LeafNode, StorageDiffs: emptyStorage, }, { Path: []byte{'\x05'}, NodeType: statediff.Leaf, LeafKey: minerLeafKey, NodeValue: minerAccountAtBlock1LeafNode, StorageDiffs: emptyStorage, }, { Path: []byte{'\x0e'}, NodeType: statediff.Leaf, LeafKey: testhelpers.Account1LeafKey, NodeValue: account1AtBlock1LeafNode, StorageDiffs: emptyStorage, }, }, }, }, { "testBlock2", // 1000 transferred from testBankAddress to account1Addr // 1000 transferred from account1Addr to account2Addr // account1addr creates a new contract statediff.Args{ OldStateRoot: block1.Root(), NewStateRoot: block2.Root(), BlockNumber: block2.Number(), BlockHash: block2.Hash(), }, &statediff.StateDiff{ BlockNumber: block2.Number(), BlockHash: block2.Hash(), Nodes: []statediff.StateNode{ { Path: []byte{'\x00'}, NodeType: statediff.Leaf, LeafKey: testhelpers.BankLeafKey, NodeValue: bankAccountAtBlock2LeafNode, StorageDiffs: emptyStorage, }, { Path: []byte{'\x05'}, NodeType: statediff.Leaf, LeafKey: minerLeafKey, NodeValue: minerAccountAtBlock2LeafNode, StorageDiffs: emptyStorage, }, { Path: []byte{'\x0e'}, NodeType: statediff.Leaf, LeafKey: testhelpers.Account1LeafKey, NodeValue: account1AtBlock2LeafNode, StorageDiffs: emptyStorage, }, { Path: []byte{'\x06'}, NodeType: statediff.Leaf, LeafKey: contractLeafKey, NodeValue: contractAccountAtBlock2LeafNode, StorageDiffs: []statediff.StorageNode{ { Path: []byte{}, NodeType: statediff.Leaf, LeafKey: originalStorageKey, NodeValue: originalStorageLeafNode, }, }, }, { Path: []byte{'\x0c'}, NodeType: statediff.Leaf, LeafKey: testhelpers.Account2LeafKey, NodeValue: account2AtBlock2LeafNode, StorageDiffs: emptyStorage, }, }, }, }, { "testBlock3", //the contract's storage is changed //and the block is mined by account 2 statediff.Args{ OldStateRoot: block2.Root(), NewStateRoot: block3.Root(), BlockNumber: block3.Number(), BlockHash: block3.Hash(), }, &statediff.StateDiff{ BlockNumber: block3.Number(), BlockHash: block3.Hash(), Nodes: []statediff.StateNode{ { Path: []byte{'\x00'}, NodeType: statediff.Leaf, LeafKey: testhelpers.BankLeafKey, NodeValue: bankAccountAtBlock3LeafNode, StorageDiffs: emptyStorage, }, { Path: []byte{'\x06'}, NodeType: statediff.Leaf, LeafKey: contractLeafKey, NodeValue: contractAccountAtBlock3LeafNode, StorageDiffs: []statediff.StorageNode{ { Path: []byte{'\x02'}, NodeType: statediff.Leaf, LeafKey: originalStorageKey, NodeValue: updatedStorageLeafNode, }, { Path: []byte{'\x04'}, NodeType: statediff.Leaf, LeafKey: newStorageKey, NodeValue: newStorageLeafNode, }, }, }, { Path: []byte{'\x0c'}, NodeType: statediff.Leaf, LeafKey: testhelpers.Account2LeafKey, NodeValue: account2AtBlock3LeafNode, StorageDiffs: emptyStorage, }, }, }, }, } for _, test := range tests { diff, err := builder.BuildStateDiff(test.startingArguments, params) if err != nil { t.Error(err) } receivedStateDiffRlp, err := rlp.EncodeToBytes(diff) if err != nil { t.Error(err) } expectedStateDiffRlp, err := rlp.EncodeToBytes(test.expected) if err != nil { t.Error(err) } sort.Slice(receivedStateDiffRlp, func(i, j int) bool { return receivedStateDiffRlp[i] < receivedStateDiffRlp[j] }) sort.Slice(expectedStateDiffRlp, func(i, j int) bool { return expectedStateDiffRlp[i] < expectedStateDiffRlp[j] }) if !bytes.Equal(receivedStateDiffRlp, expectedStateDiffRlp) { t.Logf("Test failed: %s", test.name) t.Errorf("actual state diff: %+v\nexpected state diff: %+v", diff, test.expected) } } } func TestBuilderWithIntermediateNodes(t *testing.T) { BlockHashes, blockMap, chain := testhelpers.MakeChain(3, testhelpers.Genesis) contractLeafKey = testhelpers.AddressToLeafKey(testhelpers.ContractAddr) defer chain.Stop() block0 = blockMap[BlockHashes[3]] block1 = blockMap[BlockHashes[2]] block2 = blockMap[BlockHashes[1]] block3 = blockMap[BlockHashes[0]] params := statediff.Params{ IntermediateStateNodes: true, IntermediateStorageNodes: true, } builder = statediff.NewBuilder(chain.StateCache()) var tests = []struct { name string startingArguments statediff.Args expected *statediff.StateDiff }{ { "testEmptyDiff", statediff.Args{ OldStateRoot: block0.Root(), NewStateRoot: block0.Root(), BlockNumber: block0.Number(), BlockHash: block0.Hash(), }, &statediff.StateDiff{ BlockNumber: block0.Number(), BlockHash: block0.Hash(), Nodes: emptyDiffs, }, }, { "testBlock0", //10000 transferred from testBankAddress to account1Addr statediff.Args{ OldStateRoot: testhelpers.NullHash, NewStateRoot: block0.Root(), BlockNumber: block0.Number(), BlockHash: block0.Hash(), }, &statediff.StateDiff{ BlockNumber: block0.Number(), BlockHash: block0.Hash(), Nodes: []statediff.StateNode{ { Path: []byte{}, NodeType: statediff.Leaf, LeafKey: testhelpers.BankLeafKey, NodeValue: bankAccountAtBlock0LeafNode, StorageDiffs: emptyStorage, }, }, }, }, { "testBlock1", //10000 transferred from testBankAddress to account1Addr statediff.Args{ OldStateRoot: block0.Root(), NewStateRoot: block1.Root(), BlockNumber: block1.Number(), BlockHash: block1.Hash(), }, &statediff.StateDiff{ BlockNumber: block1.Number(), BlockHash: block1.Hash(), Nodes: []statediff.StateNode{ { Path: []byte{}, NodeType: statediff.Branch, NodeValue: block1BranchNode, StorageDiffs: emptyStorage, }, { Path: []byte{'\x00'}, NodeType: statediff.Leaf, LeafKey: testhelpers.BankLeafKey, NodeValue: bankAccountAtBlock1LeafNode, StorageDiffs: emptyStorage, }, { Path: []byte{'\x05'}, NodeType: statediff.Leaf, LeafKey: minerLeafKey, NodeValue: minerAccountAtBlock1LeafNode, StorageDiffs: emptyStorage, }, { Path: []byte{'\x0e'}, NodeType: statediff.Leaf, LeafKey: testhelpers.Account1LeafKey, NodeValue: account1AtBlock1LeafNode, StorageDiffs: emptyStorage, }, }, }, }, { "testBlock2", // 1000 transferred from testBankAddress to account1Addr // 1000 transferred from account1Addr to account2Addr // account1addr creates a new contract statediff.Args{ OldStateRoot: block1.Root(), NewStateRoot: block2.Root(), BlockNumber: block2.Number(), BlockHash: block2.Hash(), }, &statediff.StateDiff{ BlockNumber: block2.Number(), BlockHash: block2.Hash(), Nodes: []statediff.StateNode{ { Path: []byte{}, NodeType: statediff.Branch, NodeValue: block2BranchNode, StorageDiffs: emptyStorage, }, { Path: []byte{'\x00'}, NodeType: statediff.Leaf, LeafKey: testhelpers.BankLeafKey, NodeValue: bankAccountAtBlock2LeafNode, StorageDiffs: emptyStorage, }, { Path: []byte{'\x05'}, NodeType: statediff.Leaf, LeafKey: minerLeafKey, NodeValue: minerAccountAtBlock2LeafNode, StorageDiffs: emptyStorage, }, { Path: []byte{'\x0e'}, NodeType: statediff.Leaf, LeafKey: testhelpers.Account1LeafKey, NodeValue: account1AtBlock2LeafNode, StorageDiffs: emptyStorage, }, { Path: []byte{'\x06'}, NodeType: statediff.Leaf, LeafKey: contractLeafKey, NodeValue: contractAccountAtBlock2LeafNode, StorageDiffs: []statediff.StorageNode{ { Path: []byte{}, NodeType: statediff.Leaf, LeafKey: originalStorageKey, NodeValue: originalStorageLeafNode, }, }, }, { Path: []byte{'\x0c'}, NodeType: statediff.Leaf, LeafKey: testhelpers.Account2LeafKey, NodeValue: account2AtBlock2LeafNode, StorageDiffs: emptyStorage, }, }, }, }, { "testBlock3", //the contract's storage is changed //and the block is mined by account 2 statediff.Args{ OldStateRoot: block2.Root(), NewStateRoot: block3.Root(), BlockNumber: block3.Number(), BlockHash: block3.Hash(), }, &statediff.StateDiff{ BlockNumber: block3.Number(), BlockHash: block3.Hash(), Nodes: []statediff.StateNode{ { Path: []byte{}, NodeType: statediff.Branch, NodeValue: block3BranchNode, StorageDiffs: emptyStorage, }, { Path: []byte{'\x00'}, NodeType: statediff.Leaf, LeafKey: testhelpers.BankLeafKey, NodeValue: bankAccountAtBlock3LeafNode, StorageDiffs: emptyStorage, }, { Path: []byte{'\x06'}, NodeType: statediff.Leaf, LeafKey: contractLeafKey, NodeValue: contractAccountAtBlock3LeafNode, StorageDiffs: []statediff.StorageNode{ { Path: []byte{}, NodeType: statediff.Branch, NodeValue: block3StorageBranchNode, }, { Path: []byte{'\x02'}, NodeType: statediff.Leaf, LeafKey: originalStorageKey, NodeValue: updatedStorageLeafNode, }, { Path: []byte{'\x04'}, NodeType: statediff.Leaf, LeafKey: newStorageKey, NodeValue: newStorageLeafNode, }, }, }, { Path: []byte{'\x0c'}, NodeType: statediff.Leaf, LeafKey: testhelpers.Account2LeafKey, NodeValue: account2AtBlock3LeafNode, StorageDiffs: emptyStorage, }, }, }, }, } for _, test := range tests { diff, err := builder.BuildStateDiff(test.startingArguments, params) if err != nil { t.Error(err) } receivedStateDiffRlp, err := rlp.EncodeToBytes(diff) if err != nil { t.Error(err) } expectedStateDiffRlp, err := rlp.EncodeToBytes(test.expected) if err != nil { t.Error(err) } sort.Slice(receivedStateDiffRlp, func(i, j int) bool { return receivedStateDiffRlp[i] < receivedStateDiffRlp[j] }) sort.Slice(expectedStateDiffRlp, func(i, j int) bool { return expectedStateDiffRlp[i] < expectedStateDiffRlp[j] }) if !bytes.Equal(receivedStateDiffRlp, expectedStateDiffRlp) { t.Logf("Test failed: %s", test.name) t.Errorf("actual state diff: %+v\r\n\r\n\r\nexpected state diff: %+v", diff, test.expected) } } } func TestBuilderWithWatchedAddressList(t *testing.T) { BlockHashes, blockMap, chain := testhelpers.MakeChain(3, testhelpers.Genesis) contractLeafKey = testhelpers.AddressToLeafKey(testhelpers.ContractAddr) defer chain.Stop() block0 = blockMap[BlockHashes[3]] block1 = blockMap[BlockHashes[2]] block2 = blockMap[BlockHashes[1]] block3 = blockMap[BlockHashes[0]] params := statediff.Params{ WatchedAddresses: []common.Address{testhelpers.Account1Addr, testhelpers.ContractAddr}, } builder = statediff.NewBuilder(chain.StateCache()) var tests = []struct { name string startingArguments statediff.Args expected *statediff.StateDiff }{ { "testEmptyDiff", statediff.Args{ OldStateRoot: block0.Root(), NewStateRoot: block0.Root(), BlockNumber: block0.Number(), BlockHash: block0.Hash(), }, &statediff.StateDiff{ BlockNumber: block0.Number(), BlockHash: block0.Hash(), Nodes: emptyDiffs, }, }, { "testBlock0", //10000 transferred from testBankAddress to account1Addr statediff.Args{ OldStateRoot: testhelpers.NullHash, NewStateRoot: block0.Root(), BlockNumber: block0.Number(), BlockHash: block0.Hash(), }, &statediff.StateDiff{ BlockNumber: block0.Number(), BlockHash: block0.Hash(), Nodes: emptyDiffs, }, }, { "testBlock1", //10000 transferred from testBankAddress to account1Addr statediff.Args{ OldStateRoot: block0.Root(), NewStateRoot: block1.Root(), BlockNumber: block1.Number(), BlockHash: block1.Hash(), }, &statediff.StateDiff{ BlockNumber: block1.Number(), BlockHash: block1.Hash(), Nodes: []statediff.StateNode{ { Path: []byte{'\x0e'}, NodeType: statediff.Leaf, LeafKey: testhelpers.Account1LeafKey, NodeValue: account1AtBlock1LeafNode, StorageDiffs: emptyStorage, }, }, }, }, { "testBlock2", //1000 transferred from testBankAddress to account1Addr //1000 transferred from account1Addr to account2Addr statediff.Args{ OldStateRoot: block1.Root(), NewStateRoot: block2.Root(), BlockNumber: block2.Number(), BlockHash: block2.Hash(), }, &statediff.StateDiff{ BlockNumber: block2.Number(), BlockHash: block2.Hash(), Nodes: []statediff.StateNode{ { Path: []byte{'\x06'}, NodeType: statediff.Leaf, LeafKey: contractLeafKey, NodeValue: contractAccountAtBlock2LeafNode, StorageDiffs: []statediff.StorageNode{ { Path: []byte{}, NodeType: statediff.Leaf, LeafKey: originalStorageKey, NodeValue: originalStorageLeafNode, }, }, }, { Path: []byte{'\x0e'}, NodeType: statediff.Leaf, LeafKey: testhelpers.Account1LeafKey, NodeValue: account1AtBlock2LeafNode, StorageDiffs: emptyStorage, }, }, }, }, { "testBlock3", //the contract's storage is changed //and the block is mined by account 2 statediff.Args{ OldStateRoot: block2.Root(), NewStateRoot: block3.Root(), BlockNumber: block3.Number(), BlockHash: block3.Hash(), }, &statediff.StateDiff{ BlockNumber: block3.Number(), BlockHash: block3.Hash(), Nodes: []statediff.StateNode{ { Path: []byte{'\x06'}, NodeType: statediff.Leaf, LeafKey: contractLeafKey, NodeValue: contractAccountAtBlock3LeafNode, StorageDiffs: []statediff.StorageNode{ { Path: []byte{'\x02'}, NodeType: statediff.Leaf, LeafKey: originalStorageKey, NodeValue: updatedStorageLeafNode, }, { Path: []byte{'\x04'}, NodeType: statediff.Leaf, LeafKey: newStorageKey, NodeValue: newStorageLeafNode, }, }, }, }, }, }, } for _, test := range tests { diff, err := builder.BuildStateDiff(test.startingArguments, params) if err != nil { t.Error(err) } receivedStateDiffRlp, err := rlp.EncodeToBytes(diff) if err != nil { t.Error(err) } expectedStateDiffRlp, err := rlp.EncodeToBytes(test.expected) if err != nil { t.Error(err) } sort.Slice(receivedStateDiffRlp, func(i, j int) bool { return receivedStateDiffRlp[i] < receivedStateDiffRlp[j] }) sort.Slice(expectedStateDiffRlp, func(i, j int) bool { return expectedStateDiffRlp[i] < expectedStateDiffRlp[j] }) if !bytes.Equal(receivedStateDiffRlp, expectedStateDiffRlp) { t.Logf("Test failed: %s", test.name) t.Errorf("actual state diff: %+v\nexpected state diff: %+v", diff, test.expected) } } } // Write a test that tests when accounts are deleted, or moved to a new path /* contract test { uint256[100] data; constructor() public { data = [1]; } function Put(uint256 addr, uint256 value) { data[addr] = value; } function Get(uint256 addr) constant returns (uint256 value) { return data[addr]; } } */