nimbus-eth1/tests/test_state_db.nim

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# Nimbus
# Copyright (c) 2018 Status Research & Development GmbH
# Licensed under either of
# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
# * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
# at your option. This file may not be copied, modified, or distributed except according to those terms.
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import unittest, strutils, eth/trie/[hexary, db],
../nimbus/db/state_db, byteutils, eth/common,
ranges
suite "Account State DB":
var
memDB = newMemoryDB()
trie = initHexaryTrie(memDB)
stateDB = newAccountStateDB(memDB, trie.rootHash, true)
address: EthAddress
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hexToByteArray("0x0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6", address)
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test "accountExists and isDeadAccount":
check stateDB.accountExists(address) == false
check stateDB.isDeadAccount(address) == true
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var acc = stateDB.getAccount(address)
acc.balance = 1000.u256
stateDB.setAccount(address, acc)
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check stateDB.accountExists(address) == true
check stateDB.isDeadAccount(address) == false
acc.balance = 0.u256
acc.nonce = 1
stateDB.setAccount(address, acc)
check stateDB.isDeadAccount(address) == false
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var code = hexToSeqByte("0x0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6")
stateDB.setCode(address, code.toRange)
stateDB.setNonce(address, 0)
check stateDB.isDeadAccount(address) == false
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code = @[]
stateDB.setCode(address, code.toRange)
check stateDB.isDeadAccount(address) == true
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check stateDB.accountExists(address) == true