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plugeth-statediff/builder_snapshot_test.go
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Add WriteStateSnapshot (#15) 
Adds a method to perform full-state snapshots by diffing against an empty state trie.
This replicates the functionality of `ipld-eth-state-snapshot`, so that code can use this as a library; see: cerc-io/ipld-eth-state-snapshot#1

Note that due to how incremental diffs are processed (updates are processed after the trie has been traversed) the iterator state doesn't fully capture the progress of the diff, so it's not currently feasible to state diffs this way. Full snapshots don't have to worry about updated accounts, so we can support them.

Co-authored-by: Thomas E Lackey <telackey@bozemanpass.com>
Reviewed-on: #15
2023-09-28 03:35:45 +00:00

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package statediff_test
import (
"testing"
statediff "github.com/cerc-io/plugeth-statediff"
"github.com/cerc-io/plugeth-statediff/indexer/ipld"
"github.com/cerc-io/plugeth-statediff/test_helpers"
sdtypes "github.com/cerc-io/plugeth-statediff/types"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
)
func TestBuilderSnapshot(t *testing.T) {
blocks, chain := test_helpers.MakeChain(3, test_helpers.Genesis, test_helpers.TestChainGen)
contractLeafKey = test_helpers.AddressToLeafKey(test_helpers.ContractAddr)
defer chain.Stop()
block0 = test_helpers.Genesis
block1 = blocks[0]
block2 = blocks[1]
block3 = blocks[2]
params := statediff.Params{}
tests := []test_helpers.SnapshotTestCase{
{
"testEmptyDiff",
common.Hash{},
&sdtypes.StateObject{
Nodes: emptyDiffs,
},
},
{
"testBlock0",
//10000 transferred from testBankAddress to account1Addr
block0.Root(),
&sdtypes.StateObject{
Nodes: []sdtypes.StateLeafNode{
{
Removed: false,
AccountWrapper: sdtypes.AccountWrapper{
Account: bankAccountAtBlock0,
LeafKey: test_helpers.BankLeafKey,
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(bankAccountAtBlock0LeafNode)).String()},
StorageDiff: emptyStorage,
},
},
IPLDs: []sdtypes.IPLD{
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(bankAccountAtBlock0LeafNode)).String(),
Content: bankAccountAtBlock0LeafNode,
},
},
},
},
{
"testBlock1",
//10000 transferred from testBankAddress to account1Addr
block1.Root(),
&sdtypes.StateObject{
Nodes: []sdtypes.StateLeafNode{
{
Removed: false,
AccountWrapper: sdtypes.AccountWrapper{
Account: bankAccountAtBlock1,
LeafKey: test_helpers.BankLeafKey,
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(bankAccountAtBlock1LeafNode)).String()},
StorageDiff: emptyStorage,
},
{
Removed: false,
AccountWrapper: sdtypes.AccountWrapper{
Account: minerAccountAtBlock1,
LeafKey: minerLeafKey,
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(minerAccountAtBlock1LeafNode)).String()},
StorageDiff: emptyStorage,
},
{
Removed: false,
AccountWrapper: sdtypes.AccountWrapper{
Account: account1AtBlock1,
LeafKey: test_helpers.Account1LeafKey,
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(account1AtBlock1LeafNode)).String()},
StorageDiff: emptyStorage,
},
},
IPLDs: []sdtypes.IPLD{
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(block1BranchRootNode)).String(),
Content: block1BranchRootNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(bankAccountAtBlock1LeafNode)).String(),
Content: bankAccountAtBlock1LeafNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(minerAccountAtBlock1LeafNode)).String(),
Content: minerAccountAtBlock1LeafNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(account1AtBlock1LeafNode)).String(),
Content: account1AtBlock1LeafNode,
},
},
},
},
{
"testBlock2",
//1000 transferred from testBankAddress to account1Addr
//1000 transferred from account1Addr to account2Addr
block2.Root(),
&sdtypes.StateObject{
Nodes: []sdtypes.StateLeafNode{
{
Removed: false,
AccountWrapper: sdtypes.AccountWrapper{
Account: bankAccountAtBlock2,
LeafKey: test_helpers.BankLeafKey,
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(bankAccountAtBlock2LeafNode)).String()},
StorageDiff: emptyStorage,
},
{
Removed: false,
AccountWrapper: sdtypes.AccountWrapper{
Account: minerAccountAtBlock2,
LeafKey: minerLeafKey,
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(minerAccountAtBlock2LeafNode)).String()},
StorageDiff: emptyStorage,
},
{
Removed: false,
AccountWrapper: sdtypes.AccountWrapper{
Account: account1AtBlock2,
LeafKey: test_helpers.Account1LeafKey,
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(account1AtBlock2LeafNode)).String()},
StorageDiff: emptyStorage,
},
{
Removed: false,
AccountWrapper: sdtypes.AccountWrapper{
Account: contractAccountAtBlock2,
LeafKey: contractLeafKey,
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(contractAccountAtBlock2LeafNode)).String()},
StorageDiff: []sdtypes.StorageLeafNode{
{
Removed: false,
Value: slot0StorageValue,
LeafKey: slot0StorageKey.Bytes(),
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(slot0StorageLeafNode)).String(),
},
{
Removed: false,
Value: slot1StorageValue,
LeafKey: slot1StorageKey.Bytes(),
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(slot1StorageLeafNode)).String(),
},
},
},
{
Removed: false,
AccountWrapper: sdtypes.AccountWrapper{
Account: account2AtBlock2,
LeafKey: test_helpers.Account2LeafKey,
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(account2AtBlock2LeafNode)).String()},
StorageDiff: emptyStorage,
},
},
IPLDs: []sdtypes.IPLD{
{
CID: ipld.Keccak256ToCid(ipld.RawBinary, test_helpers.CodeHash.Bytes()).String(),
Content: test_helpers.ByteCodeAfterDeployment,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(block2BranchRootNode)).String(),
Content: block2BranchRootNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(bankAccountAtBlock2LeafNode)).String(),
Content: bankAccountAtBlock2LeafNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(minerAccountAtBlock2LeafNode)).String(),
Content: minerAccountAtBlock2LeafNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(account1AtBlock2LeafNode)).String(),
Content: account1AtBlock2LeafNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(contractAccountAtBlock2LeafNode)).String(),
Content: contractAccountAtBlock2LeafNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(block2StorageBranchRootNode)).String(),
Content: block2StorageBranchRootNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(slot0StorageLeafNode)).String(),
Content: slot0StorageLeafNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(slot1StorageLeafNode)).String(),
Content: slot1StorageLeafNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(account2AtBlock2LeafNode)).String(),
Content: account2AtBlock2LeafNode,
},
},
},
},
{
"testBlock3",
//the contract's storage is changed
//and the block is mined by account 2
block3.Root(),
&sdtypes.StateObject{
Nodes: []sdtypes.StateLeafNode{
{
Removed: false,
AccountWrapper: sdtypes.AccountWrapper{
Account: minerAccountAtBlock2,
LeafKey: minerLeafKey,
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(minerAccountAtBlock2LeafNode)).String()},
StorageDiff: emptyStorage,
},
{
Removed: false,
AccountWrapper: sdtypes.AccountWrapper{
Account: account1AtBlock2,
LeafKey: test_helpers.Account1LeafKey,
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(account1AtBlock2LeafNode)).String()},
StorageDiff: emptyStorage,
},
{
Removed: false,
AccountWrapper: sdtypes.AccountWrapper{
Account: bankAccountAtBlock3,
LeafKey: test_helpers.BankLeafKey,
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(bankAccountAtBlock3LeafNode)).String()},
StorageDiff: emptyStorage,
},
{
Removed: false,
AccountWrapper: sdtypes.AccountWrapper{
Account: contractAccountAtBlock3,
LeafKey: contractLeafKey,
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(contractAccountAtBlock3LeafNode)).String()},
StorageDiff: []sdtypes.StorageLeafNode{
{
Removed: false,
Value: slot0StorageValue,
LeafKey: slot0StorageKey.Bytes(),
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(slot0StorageLeafNode)).String(),
},
{
Removed: false,
Value: slot1StorageValue,
LeafKey: slot1StorageKey.Bytes(),
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(slot1StorageLeafNode)).String(),
},
{
Removed: false,
Value: slot3StorageValue,
LeafKey: slot3StorageKey.Bytes(),
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(slot3StorageLeafNode)).String(),
},
},
},
{
Removed: false,
AccountWrapper: sdtypes.AccountWrapper{
Account: account2AtBlock3,
LeafKey: test_helpers.Account2LeafKey,
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(account2AtBlock3LeafNode)).String()},
StorageDiff: emptyStorage,
},
},
IPLDs: []sdtypes.IPLD{
{
CID: ipld.Keccak256ToCid(ipld.RawBinary, test_helpers.CodeHash.Bytes()).String(),
Content: test_helpers.ByteCodeAfterDeployment,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(minerAccountAtBlock2LeafNode)).String(),
Content: minerAccountAtBlock2LeafNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(account1AtBlock2LeafNode)).String(),
Content: account1AtBlock2LeafNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(slot0StorageLeafNode)).String(),
Content: slot0StorageLeafNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(slot1StorageLeafNode)).String(),
Content: slot1StorageLeafNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(block3BranchRootNode)).String(),
Content: block3BranchRootNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(bankAccountAtBlock3LeafNode)).String(),
Content: bankAccountAtBlock3LeafNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(contractAccountAtBlock3LeafNode)).String(),
Content: contractAccountAtBlock3LeafNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(block3StorageBranchRootNode)).String(),
Content: block3StorageBranchRootNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(slot3StorageLeafNode)).String(),
Content: slot3StorageLeafNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(account2AtBlock3LeafNode)).String(),
Content: account2AtBlock3LeafNode,
},
},
},
},
}
for _, test := range tests {
test_helpers.RunStateSnapshot(t, chain.StateCache(), test, params)
}
}
func TestBuilderSnapshotWithWatchedAddressList(t *testing.T) {
blocks, chain := test_helpers.MakeChain(3, test_helpers.Genesis, test_helpers.TestChainGen)
contractLeafKey = test_helpers.AddressToLeafKey(test_helpers.ContractAddr)
defer chain.Stop()
block0 = test_helpers.Genesis
block1 = blocks[0]
block2 = blocks[1]
block3 = blocks[2]
params := statediff.Params{
WatchedAddresses: []common.Address{test_helpers.Account1Addr, test_helpers.ContractAddr},
}
params.ComputeWatchedAddressesLeafPaths()
var tests = []test_helpers.SnapshotTestCase{
{
"testBlock0",
//10000 transferred from testBankAddress to account1Addr
block0.Root(),
&sdtypes.StateObject{
Nodes: emptyDiffs,
},
},
{
"testBlock1",
//10000 transferred from testBankAddress to account1Addr
block1.Root(),
&sdtypes.StateObject{
Nodes: []sdtypes.StateLeafNode{
{
Removed: false,
AccountWrapper: sdtypes.AccountWrapper{
Account: account1AtBlock1,
LeafKey: test_helpers.Account1LeafKey,
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(account1AtBlock1LeafNode)).String()},
StorageDiff: emptyStorage,
},
},
IPLDs: []sdtypes.IPLD{
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(block1BranchRootNode)).String(),
Content: block1BranchRootNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(account1AtBlock1LeafNode)).String(),
Content: account1AtBlock1LeafNode,
},
},
},
},
{
"testBlock2",
//1000 transferred from testBankAddress to account1Addr
//1000 transferred from account1Addr to account2Addr
block2.Root(),
&sdtypes.StateObject{
Nodes: []sdtypes.StateLeafNode{
{
Removed: false,
AccountWrapper: sdtypes.AccountWrapper{
Account: contractAccountAtBlock2,
LeafKey: contractLeafKey,
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(contractAccountAtBlock2LeafNode)).String(),
},
StorageDiff: []sdtypes.StorageLeafNode{
{
Removed: false,
Value: slot0StorageValue,
LeafKey: slot0StorageKey.Bytes(),
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(slot0StorageLeafNode)).String(),
},
{
Removed: false,
Value: slot1StorageValue,
LeafKey: slot1StorageKey.Bytes(),
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(slot1StorageLeafNode)).String(),
},
},
},
{
Removed: false,
AccountWrapper: sdtypes.AccountWrapper{
Account: account1AtBlock2,
LeafKey: test_helpers.Account1LeafKey,
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(account1AtBlock2LeafNode)).String()},
StorageDiff: emptyStorage,
},
},
IPLDs: []sdtypes.IPLD{
{
CID: ipld.Keccak256ToCid(ipld.RawBinary, test_helpers.CodeHash.Bytes()).String(),
Content: test_helpers.ByteCodeAfterDeployment,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(block2BranchRootNode)).String(),
Content: block2BranchRootNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(contractAccountAtBlock2LeafNode)).String(),
Content: contractAccountAtBlock2LeafNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(block2StorageBranchRootNode)).String(),
Content: block2StorageBranchRootNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(slot0StorageLeafNode)).String(),
Content: slot0StorageLeafNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(slot1StorageLeafNode)).String(),
Content: slot1StorageLeafNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(account1AtBlock2LeafNode)).String(),
Content: account1AtBlock2LeafNode,
},
},
},
},
{
"testBlock3",
//the contract's storage is changed
//and the block is mined by account 2
block3.Root(),
&sdtypes.StateObject{
Nodes: []sdtypes.StateLeafNode{
{
Removed: false,
AccountWrapper: sdtypes.AccountWrapper{
Account: account1AtBlock2,
LeafKey: test_helpers.Account1LeafKey,
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(account1AtBlock2LeafNode)).String()},
StorageDiff: emptyStorage,
},
{
Removed: false,
AccountWrapper: sdtypes.AccountWrapper{
Account: contractAccountAtBlock3,
LeafKey: contractLeafKey,
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(contractAccountAtBlock3LeafNode)).String()},
StorageDiff: []sdtypes.StorageLeafNode{
{
Removed: false,
Value: slot0StorageValue,
LeafKey: slot0StorageKey.Bytes(),
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(slot0StorageLeafNode)).String(),
},
{
Removed: false,
Value: slot1StorageValue,
LeafKey: slot1StorageKey.Bytes(),
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(slot1StorageLeafNode)).String(),
},
{
Removed: false,
Value: slot3StorageValue,
LeafKey: slot3StorageKey.Bytes(),
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(slot3StorageLeafNode)).String(),
},
},
},
},
IPLDs: []sdtypes.IPLD{
{
CID: ipld.Keccak256ToCid(ipld.RawBinary, test_helpers.CodeHash.Bytes()).String(),
Content: test_helpers.ByteCodeAfterDeployment,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(account1AtBlock2LeafNode)).String(),
Content: account1AtBlock2LeafNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(slot0StorageLeafNode)).String(),
Content: slot0StorageLeafNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(slot1StorageLeafNode)).String(),
Content: slot1StorageLeafNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(block3BranchRootNode)).String(),
Content: block3BranchRootNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStateTrie, crypto.Keccak256(contractAccountAtBlock3LeafNode)).String(),
Content: contractAccountAtBlock3LeafNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(block3StorageBranchRootNode)).String(),
Content: block3StorageBranchRootNode,
},
{
CID: ipld.Keccak256ToCid(ipld.MEthStorageTrie, crypto.Keccak256(slot3StorageLeafNode)).String(),
Content: slot3StorageLeafNode,
},
},
},
},
}
for _, test := range tests {
test_helpers.RunStateSnapshot(t, chain.StateCache(), test, params)
}
}
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