nimbus-eth1/stateless/test_block_witness.nim

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import
unittest2, os, json, strutils,
eth/[common, rlp], eth/trie/[hexary, db, trie_defs],
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stew/byteutils, faststreams/inputs,
../tests/[test_helpers, test_config],
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../nimbus/db/accounts_cache, ./witness_types,
../stateless/[witness_from_tree, tree_from_witness],
./multi_keys
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type
Tester = object
keys: MultikeysRef
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memDB: TrieDatabaseRef
proc testGetBranch(tester: Tester, rootHash: KeccakHash, testStatusIMPL: var TestStatus) =
var trie = initSecureHexaryTrie(tester.memdb, rootHash)
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let flags = {wfEIP170}
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try:
var wb = initWitnessBuilder(tester.memdb, rootHash, flags)
var witness = wb.buildWitness(tester.keys)
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var db = newMemoryDB()
when defined(useInputStream):
var input = memoryInput(witness)
var tb = initTreeBuilder(input, db, flags)
else:
var tb = initTreeBuilder(witness, db, flags)
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var root = tb.buildTree()
check root.data == rootHash.data
let newTrie = initSecureHexaryTrie(tb.getDB(), root)
for kd in tester.keys.keys:
let account = rlp.decode(trie.get(kd.address), Account)
let recordFound = newTrie.get(kd.address)
if recordFound.len > 0:
let acc = rlp.decode(recordFound, Account)
doAssert acc == account
else:
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doAssert(false, "BUG IN WITNESS/TREE BUILDER")
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except ContractCodeError as e:
debugEcho "CONTRACT CODE ERROR: ", e.msg
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func parseHash256(n: JsonNode, name: string): Hash256 =
hexToByteArray(n[name].getStr(), result.data)
proc setupStateDB(tester: var Tester, wantedState: JsonNode, stateDB: var AccountsCache): Hash256 =
var keys = newSeqOfCap[AccountKey](wantedState.len)
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for ac, accountData in wantedState:
let account = ethAddressFromHex(ac)
let slotVals = accountData{"storage"}
var storageKeys = newSeqOfCap[StorageSlot](slotVals.len)
for slotStr, value in slotVals:
let slot = fromHex(UInt256, slotStr)
storageKeys.add(slot.toBytesBE)
stateDB.setStorage(account, slot, fromHex(UInt256, value.getStr))
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let nonce = accountData{"nonce"}.getHexadecimalInt.AccountNonce
let code = accountData{"code"}.getStr.safeHexToSeqByte
let balance = UInt256.fromHex accountData{"balance"}.getStr
stateDB.setNonce(account, nonce)
stateDB.setCode(account, code)
stateDB.setBalance(account, balance)
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let sKeys = if storageKeys.len != 0: newMultiKeys(storageKeys) else: MultikeysRef(nil)
let codeTouched = code.len > 0
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keys.add(AccountKey(address: account, codeTouched: codeTouched, storageKeys: sKeys))
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tester.keys = newMultiKeys(keys)
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stateDB.persist()
result = stateDB.rootHash
proc testBlockWitness(node: JsonNode, rootHash: Hash256, testStatusIMPL: var TestStatus) =
var
tester = Tester(memDB: newMemoryDB())
ac = AccountsCache.init(tester.memDB, emptyRlpHash, true)
let root = tester.setupStateDB(node, ac)
if rootHash != emptyRlpHash:
check root == rootHash
tester.testGetBranch(root, testStatusIMPL)
proc testFixtureBC(node: JsonNode, testStatusIMPL: var TestStatus) =
for fixtureName, fixture in node:
let rootHash = parseHash256(fixture["genesisBlockHeader"], "stateRoot")
fixture["pre"].testBlockWitness(rootHash, testStatusIMPL)
proc testFixtureGST(node: JsonNode, testStatusIMPL: var TestStatus) =
var fixture: JsonNode
for fixtureName, child in node:
fixture = child
break
fixture["pre"].testBlockWitness(emptyRlpHash, testStatusIMPL)
proc blockWitnessMain*(debugMode = false) =
if paramCount() == 0 or not debugMode:
# run all test fixtures
suite "Block Witness":
jsonTest("newBlockChainTests", "witnessBuilderBC", testFixtureBC)
suite "Block Witness":
jsonTest("GeneralStateTests", "witnessBuilderGST", testFixtureGST)
else:
# execute single test in debug mode
let config = getConfiguration()
if config.testSubject.len == 0:
echo "missing test subject"
quit(QuitFailure)
let folder = if config.legacy: "GeneralStateTests" else: "newGeneralStateTests"
let path = "tests" / "fixtures" / folder
let n = json.parseFile(path / config.testSubject)
var testStatusIMPL: TestStatus
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testFixtureGST(n, testStatusIMPL)
when isMainModule:
var message: string
## Processing command line arguments
if processArguments(message) != Success:
echo message
quit(QuitFailure)
else:
if len(message) > 0:
echo message
quit(QuitSuccess)
blockWitnessMain(true)