evm t8n env file format

[winsvega]

What format besu t8n is expecting from env file?

java.lang.NumberFormatException: For input string: "0x00"
	at java.base/java.lang.NumberFormatException.forInputString(NumberFormatException.java:67)
	at java.base/java.lang.Long.parseLong(Long.java:711)
	at java.base/java.lang.Long.parseLong(Long.java:836)
	at org.hyperledger.besu.ethereum.referencetests.ReferenceTestEnv.updateFromParentValues(ReferenceTestEnv.java:166)
	at org.hyperledger.besu.evmtool.T8nSubCommand.run(T8nSubCommand.java:267)
	at picocli.CommandLine.executeUserObject(CommandLine.java:1939)
	at picocli.CommandLine.access$1300(CommandLine.java:145)
	at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2358)
	at picocli.CommandLine$RunLast.handle(CommandLine.java:2352)
	at picocli.CommandLine$RunLast.handle(CommandLine.java:2314)
	at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2179)
	at picocli.CommandLine$RunLast.execute(CommandLine.java:2316)
	at picocli.CommandLine.execute(CommandLine.java:2078)
	at org.hyperledger.besu.evmtool.EvmToolCommand.execute(EvmToolCommand.java:246)
	at org.hyperledger.besu.evmtool.EvmToolCommand.execute(EvmToolCommand.java:219)
	at org.hyperledger.besu.evmtool.EvmTool.main(EvmTool.java:27)

Env file I give:

Env:
{
    "currentCoinbase" : "0x2adc25665018aa1fe0e6bc666dac8fc2697ff9ba",
    "currentNumber" : "0x01",
    "currentTimestamp" : "0x03e8",
    "currentGasLimit" : "0xff112233445566",
    "previousHash" : "0xb271e9e5796d0ff5a2fd519ba666393e42d4f38680854761121d84a7a96ff017",
    "parentTimestamp" : "0x00",
    "parentDifficulty" : "0x00",
    "parentUncleHash" : "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
    "currentRandom" : "0x0000000000000000000000000000000000000000000000000000000000020000",
    "parentBaseFee" : "0x0b",
    "parentGasUsed" : "0x00",
    "parentGasLimit" : "0xff112233445566",
    "blockHashes" : {
        "0" : "0xb271e9e5796d0ff5a2fd519ba666393e42d4f38680854761121d84a7a96ff017"
    }
}

[shemnon]

Execution Spec Tests has been using base 10 for almost all of it's fields.

We can fix Besu's t8n, as long as hex always has a 0x prefix.

Here's a sample from what they send

{
      "currentCoinbase": "0x2adc25665018aa1fe0e6bc666dac8fc2697ff9ba",
      "currentGasLimit": "100000000000000000",
      "currentNumber": "1",
      "currentTimestamp": "12",
      "currentRandom": "0",
      "currentDifficulty": "0",
      "parentDifficulty": "0",
      "parentBaseFee": "7",
      "parentGasUsed": "0",
      "parentGasLimit": "100000000000000000",
      "parentTimstamp": "0",
      "blockHashes": {
        "0": "0xea2d7e0192d890c222f0302d972a02db0bf0c6d08257d73aa1210d08d24f30c3"
      },
      "ommers": [],
      "withdrawals": [],
      "parentUncleHash": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"
    }

Also, we currently don't have block hashes support. Will add that too.

[shemnon]

Turns it's an error in just one case: London or later and for the parentGasUsed value. Fix is posted.

[winsvega]

opened an issue about t8n versioning ethereum/tests#1165