154 lines
4.9 KiB
Nim
154 lines
4.9 KiB
Nim
# Nimbus
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# Copyright (c) 2018 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
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# * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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import unittest2, eth/trie/[hexary, db],
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../nimbus/db/state_db, stew/byteutils, eth/common
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include ../nimbus/db/accounts_cache
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func initAddr(z: int): EthAddress =
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result[^1] = z.byte
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proc stateDBMain*() =
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suite "Account State DB":
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setup:
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const emptyAcc {.used.} = newAccount()
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var
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memDB = newMemoryDB()
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acDB {.used.} = newMemoryDB()
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trie = initHexaryTrie(memDB)
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stateDB {.used.} = newAccountStateDB(memDB, trie.rootHash, true)
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address {.used.} = hexToByteArray[20]("0x0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6")
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code {.used.} = hexToSeqByte("0x0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6")
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rootHash {.used.} : KeccakHash
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test "accountExists and isDeadAccount":
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check stateDB.accountExists(address) == false
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check stateDB.isDeadAccount(address) == true
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var acc = stateDB.getAccount(address)
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acc.balance = 1000.u256
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stateDB.setAccount(address, acc)
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check stateDB.accountExists(address) == true
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check stateDB.isDeadAccount(address) == false
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acc.balance = 0.u256
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acc.nonce = 1
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stateDB.setAccount(address, acc)
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check stateDB.isDeadAccount(address) == false
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stateDB.setCode(address, code)
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stateDB.setNonce(address, 0)
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check stateDB.isDeadAccount(address) == false
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stateDB.setCode(address, [])
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check stateDB.isDeadAccount(address) == true
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check stateDB.accountExists(address) == true
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test "clone storage":
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var x = RefAccount(
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overlayStorage: initTable[UInt256, UInt256](),
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originalStorage: newTable[UInt256, UInt256]()
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)
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x.overlayStorage[10.u256] = 11.u256
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x.overlayStorage[11.u256] = 12.u256
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x.originalStorage[10.u256] = 11.u256
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x.originalStorage[11.u256] = 12.u256
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var y = x.clone(cloneStorage = true)
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y.overlayStorage[12.u256] = 13.u256
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y.originalStorage[12.u256] = 13.u256
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check 12.u256 notin x.overlayStorage
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check 12.u256 in y.overlayStorage
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check x.overlayStorage.len == 2
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check y.overlayStorage.len == 3
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check 12.u256 in x.originalStorage
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check 12.u256 in y.originalStorage
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check x.originalStorage.len == 3
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check y.originalStorage.len == 3
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test "accounts cache":
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var ac = init(AccountsCache, acDB, emptyRlpHash, true)
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var addr1 = initAddr(1)
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check ac.isDeadAccount(addr1) == true
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check ac.accountExists(addr1) == false
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check ac.hasCodeOrNonce(addr1) == false
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ac.setBalance(addr1, 1000.u256)
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check ac.getBalance(addr1) == 1000.u256
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ac.subBalance(addr1, 100.u256)
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check ac.getBalance(addr1) == 900.u256
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ac.addBalance(addr1, 200.u256)
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check ac.getBalance(addr1) == 1100.u256
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ac.setNonce(addr1, 1)
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check ac.getNonce(addr1) == 1
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ac.incNonce(addr1)
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check ac.getNonce(addr1) == 2
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ac.setCode(addr1, code)
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check ac.getCode(addr1) == code
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ac.setStorage(addr1, 1.u256, 10.u256)
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check ac.getStorage(addr1, 1.u256) == 10.u256
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check ac.getCommittedStorage(addr1, 1.u256) == 0.u256
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check ac.hasCodeOrNonce(addr1) == true
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check ac.getCodeSize(addr1) == code.len
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ac.persist()
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rootHash = ac.rootHash
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var db = newAccountStateDB(memDB, emptyRlpHash, true)
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db.setBalance(addr1, 1100.u256)
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db.setNonce(addr1, 2)
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db.setCode(addr1, code)
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db.setStorage(addr1, 1.u256, 10.u256)
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check rootHash == db.rootHash
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test "accounts cache readonly operations":
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# use previous hash
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var ac = init(AccountsCache, acDB, rootHash, true)
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var addr2 = initAddr(2)
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check ac.getCodeHash(addr2) == emptyAcc.codeHash
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check ac.getBalance(addr2) == emptyAcc.balance
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check ac.getNonce(addr2) == emptyAcc.nonce
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check ac.getCode(addr2) == []
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check ac.getCodeSize(addr2) == 0
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check ac.getCommittedStorage(addr2, 1.u256) == 0.u256
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check ac.getStorage(addr2, 1.u256) == 0.u256
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check ac.hasCodeOrNonce(addr2) == false
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check ac.accountExists(addr2) == false
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check ac.isDeadAccount(addr2) == true
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ac.persist()
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# readonly operations should not modify
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# state trie at all
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check ac.rootHash == rootHash
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test "accounts cache code retrieval after persist called":
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var ac = init(AccountsCache, acDB)
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var addr2 = initAddr(2)
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ac.setCode(addr2, code)
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ac.persist()
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check ac.getCode(addr2) == code
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let key = contractHashKey(hexary.keccak(code))
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check acDB.get(key.toOpenArray) == code
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when isMainModule:
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stateDBMain()
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