OmmersValidatorSpec.scala

package io.iohk.ethereum.consensus.validators

import akka.util.ByteString
import io.iohk.ethereum.ObjectGenerators
import io.iohk.ethereum.blockchain.sync.EphemBlockchainTestSetup
import io.iohk.ethereum.consensus.ethash.validators.OmmersValidator.OmmersError._
import io.iohk.ethereum.consensus.ethash.validators.{EthashBlockHeaderValidator, StdOmmersValidator}
import io.iohk.ethereum.domain.{Block, BlockBody, BlockHeader}
import org.scalatest.{FlatSpec, Matchers}
import org.bouncycastle.util.encoders.Hex
import org.scalatestplus.scalacheck.ScalaCheckPropertyChecks

class OmmersValidatorSpec extends FlatSpec with Matchers with ScalaCheckPropertyChecks with ObjectGenerators {

  it should "validate correctly a valid list of ommers" in new BlockUtils {
    ommersValidator.validate(ommersBlockParentHash, ommersBlockNumber, ommers, blockchain) match {
      case Right(_) => succeed
      case Left(err) => fail(s"Unexpected validation error: $err")
    }
  }

  it should "report a failure if the list of ommers is too big" in new BlockUtils {
    ommersValidator.validate(ommersBlockParentHash, ommersBlockNumber, Seq(ommer1, ommer2, ommer2), blockchain) match {
      case Left(OmmersLengthError) => succeed
      case Left(err) => fail(s"Unexpected validation error: $err")
      case Right(_) => fail("Unexpected validation success")
    }
  }

  it should "report a failure if there is an invalid header in the list of ommers" in new BlockUtils {
    val invalidOmmer1: BlockHeader = ommer1.copy(number = ommer1.number + 1)

    ommersValidator.validate(ommersBlockParentHash, ommersBlockNumber, Seq(invalidOmmer1, ommer2), blockchain) match {
      case Left(OmmersNotValidError) => succeed
      case Left(err) => fail(s"Unexpected validation error: $err")
      case Right(_) => fail("Unexpected validation success")
    }
  }

  it should "report a failure if there is an ommer that was previously used" in new BlockUtils {
    ommersValidator.validate(
      ommersBlockParentHash,
      ommersBlockNumber,
      Seq(block93.body.uncleNodesList.head, ommer2),
      blockchain
    ) match {
      case Left(OmmersUsedBeforeError) => succeed
      case Left(err) => fail(s"Unexpected validation error: $err")
      case Right(_) => fail("Unexpected validation success")
    }
  }

  it should "report a failure if there is an ommer which is of the last ancestors" in new BlockUtils {
    ommersValidator.validate(ommersBlockParentHash, ommersBlockNumber, Seq(ommer1, block92.header), blockchain) match {
      case Left(OmmersAncestorsError) => succeed
      case Left(err) => fail(s"Unexpected validation error: $err")
      case Right(_) => fail("Unexpected validation success")
    }
  }

  it should "report a failure if there is an ommer too old" in new BlockUtils {
    ommersValidator.validate(ommersBlockParentHash, ommersBlockNumber, Seq(ommer1, block90.header), blockchain) match {
      case Left(OmmersAncestorsError) => succeed
      case _ => fail
    }
  }

  it should "report a failure if there is a duplicated ommer in the ommer list" in new BlockUtils {
    ommersValidator.validate(ommersBlockParentHash, ommersBlockNumber, Seq(ommer1, ommer1), blockchain) match {
      case Left(OmmersDuplicatedError) => succeed
      case Left(err) => fail(s"Unexpected validation error: $err")
      case Right(_) => fail("Unexpected validation success")
    }
  }

  // scalastyle:off magic.number
  trait BlockUtils extends EphemBlockchainTestSetup {

    val ommersValidator = new StdOmmersValidator(blockchainConfig, new EthashBlockHeaderValidator(blockchainConfig))

    //Ommers from block 0xe9fb121a7ee5cb03b33adbf59e95321a2453f09db98068e1f31f0da79860c50c (of number 97)
    val ommer1 = BlockHeader(
      parentHash = ByteString(Hex.decode("fd07e36cfaf327801e5696134b36678f6a89fb1e8f017f2411a29d0ae810ab8b")),
      ommersHash = ByteString(Hex.decode("7766c4251396a6833ccbe4be86fbda3a200dccbe6a15d80ae3de5378b1540e04")),
      beneficiary = ByteString(Hex.decode("1b7047b4338acf65be94c1a3e8c5c9338ad7d67c")),
      stateRoot = ByteString(Hex.decode("52ce0ff43d7df2cf39f8cb8832f94d2280ebe856d84d8feb7b2281d3c5cfb990")),
      transactionsRoot = ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
      receiptsRoot = ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
      logsBloom = ByteString(
        Hex.decode(
          "00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
        )
      ),
      difficulty = BigInt("17864037202"),
      number = 94,
      gasLimit = 5000,
      gasUsed = 0,
      unixTimestamp = 1438270431,
      extraData = ByteString(Hex.decode("426974636f696e2069732054484520426c6f636b636861696e2e")),
      mixHash = ByteString(Hex.decode("c6d695926546d3d679199303a6d1fc983fe3f09f44396619a24c4271830a7b95")),
      nonce = ByteString(Hex.decode("62bc3dca012c1b27")),
      treasuryOptOut = None
    )
    val ommer2 = BlockHeader(
      parentHash = ByteString(Hex.decode("fd07e36cfaf327801e5696134b36678f6a89fb1e8f017f2411a29d0ae810ab8b")),
      ommersHash = ByteString(Hex.decode("7766c4251396a6833ccbe4be86fbda3a200dccbe6a15d80ae3de5378b1540e04")),
      beneficiary = ByteString(Hex.decode("28921e4e2c9d84f4c0f0c0ceb991f45751a0fe93")),
      stateRoot = ByteString(Hex.decode("e766f9c51536e9038849e5eb0a143c3b3409b5385098359837cbf3324ad22328")),
      transactionsRoot = ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
      receiptsRoot = ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
      logsBloom = ByteString(
        Hex.decode(
          "00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
        )
      ),
      difficulty = BigInt("17864037202"),
      number = 94,
      gasLimit = 5000,
      gasUsed = 0,
      unixTimestamp = 1438270431,
      extraData = ByteString(Hex.decode("476574682f76312e302e302f6c696e75782f676f312e342e32")),
      mixHash = ByteString(Hex.decode("8c1ed8037984be0fe9065f8f8663c3baeeb6436868ac6915dd3c2cd5fd46fa96")),
      nonce = ByteString(Hex.decode("40b0b2c0b6d14706")),
      treasuryOptOut = None
    )
    val ommers: Seq[BlockHeader] = Seq[BlockHeader](ommer1, ommer2)
    val ommersBlockNumber = 97

    val block90 = Block(
      BlockHeader(
        parentHash = ByteString(Hex.decode("6da5970538eba5db93162e219182fca7e093cfe4fbd8dd0b82789adb25dcbb42")),
        ommersHash = ByteString(Hex.decode("1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347")),
        beneficiary = ByteString(Hex.decode("d7e30ae310c1d1800f5b641baa7af95b2e1fd98c")),
        stateRoot = ByteString(Hex.decode("da6f0baf5f17d201b3d711299091ecee68cf56469b1e09704713934de1c74517")),
        transactionsRoot = ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
        receiptsRoot = ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
        logsBloom = ByteString(
          Hex.decode(
            "00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
          )
        ),
        difficulty = BigInt("17829189056"),
        number = 90,
        gasLimit = 5000,
        gasUsed = 0,
        unixTimestamp = 1438270422,
        extraData = ByteString(Hex.decode("476574682f6b6c6f737572652f76312e302e302d66633739643332642f6c696e")),
        mixHash = ByteString(Hex.decode("f28f1b53323dc8a6a4fe73495e71e81947366b68d8a217daa4e349b0c939401f")),
        nonce = ByteString(Hex.decode("f91fd0cc60d6948c")),
        treasuryOptOut = None
      ),
      BlockBody(Seq.empty, Seq.empty)
    )
    val block91 = Block(
      BlockHeader(
        parentHash = ByteString(Hex.decode("69d2798993659c0d864d6f2824440b091368c147efc6c33410ef181036fc2bf1")),
        ommersHash = ByteString(Hex.decode("1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347")),
        beneficiary = ByteString(Hex.decode("28921e4e2c9d84f4c0f0c0ceb991f45751a0fe93")),
        stateRoot = ByteString(Hex.decode("0d528286094ba4781aed7a19a9c890e07651be9b73e999585c926810ec888198")),
        transactionsRoot = ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
        receiptsRoot = ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
        logsBloom = ByteString(
          Hex.decode(
            "00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
          )
        ),
        difficulty = BigInt("17837894714"),
        number = 91,
        gasLimit = 5000,
        gasUsed = 0,
        unixTimestamp = 1438270425,
        extraData = ByteString(Hex.decode("476574682f76312e302e302f6c696e75782f676f312e342e32")),
        mixHash = ByteString(Hex.decode("eadd3fbbb336d073a33e4fb9faa97be8b0e904aeb8b65eeae243e1e35d86e6c3")),
        nonce = ByteString(Hex.decode("20fdc1504ec955a0")),
        treasuryOptOut = None
    ),
      BlockBody(Seq.empty, Seq.empty)
    )
    val block92 = Block(
      BlockHeader(
        parentHash = ByteString(Hex.decode("d691ed6cf02375620d9cca9052bcf38a4a23f5c77058581c8bb54a06e2eb6ed9")),
        ommersHash = ByteString(Hex.decode("1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347")),
        beneficiary = ByteString(Hex.decode("bb7b8287f3f0a933474a79eae42cbca977791171")),
        stateRoot = ByteString(Hex.decode("a7be51c65294e0f504e781ce19ae192998fb919805cc0822d5142500204b6917")),
        transactionsRoot = ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
        receiptsRoot = ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
        logsBloom = ByteString(
          Hex.decode(
            "00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
          )
        ),
        difficulty = BigInt("17846604623"),
        number = 92,
        gasLimit = 5000,
        gasUsed = 0,
        unixTimestamp = 1438270427,
        extraData = ByteString(Hex.decode("476574682f4c5649562f76312e302e302f6c696e75782f676f312e342e32")),
        mixHash = ByteString(Hex.decode("afd3d088f65607ad7404837db220add9cf54ca0f4fb107e3f6bee9d0aca18e7f")),
        nonce = ByteString(Hex.decode("dd7e335a44c7e9c9")),
        treasuryOptOut = None
      ),
      BlockBody(Seq.empty, Seq.empty)
    )
    val block93 = Block(
      BlockHeader(
        parentHash = ByteString(Hex.decode("c86dcbd8ba3cd836bd9c00d9dababe81ed5a42310ade70a77700d42b5ff8b64c")),
        ommersHash = ByteString(Hex.decode("445ccaa7ee03cf387e4835482288f6b08dc351eef4ecc94b3ed8de56afd298a6")),
        beneficiary = ByteString(Hex.decode("bb7b8287f3f0a933474a79eae42cbca977791171")),
        stateRoot = ByteString(Hex.decode("38f5e900f8dee62e0fdd52818dbedfe0869fa95a876357dd94669f56f25e980b")),
        transactionsRoot = ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
        receiptsRoot = ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
        logsBloom = ByteString(
          Hex.decode(
            "00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
          )
        ),
        difficulty = BigInt("17855318785"),
        number = 93,
        gasLimit = 5000,
        gasUsed = 0,
        unixTimestamp = 1438270430,
        extraData = ByteString(Hex.decode("476574682f4c5649562f76312e302e302f6c696e75782f676f312e342e32")),
        mixHash = ByteString(Hex.decode("631f88fd52a9a7ee3cc3a08945eb2ab8f4da37d7cf96592dac9af514f28365bc")),
        nonce = ByteString(Hex.decode("cdc4e60cbd67b791")),
        treasuryOptOut = None
      ),
      BlockBody(
        Seq.empty,
        Seq[BlockHeader](
          BlockHeader(
            parentHash = ByteString(Hex.decode("69d2798993659c0d864d6f2824440b091368c147efc6c33410ef181036fc2bf1")),
            ommersHash = ByteString(Hex.decode("1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347")),
            beneficiary = ByteString(Hex.decode("bb7b8287f3f0a933474a79eae42cbca977791171")),
            stateRoot = ByteString(Hex.decode("e0ae53ea50eb6fb40b764b748ccd6d4f6184a6f3c474899c74df102310c37d6a")),
            transactionsRoot =
              ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
            receiptsRoot = ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
            logsBloom = ByteString(
              Hex.decode(
                "00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
              )
            ),
            difficulty = BigInt("17837894714"),
            number = 91,
            gasLimit = 5000,
            gasUsed = 0,
            unixTimestamp = 1438270425,
            extraData = ByteString(Hex.decode("476574682f4c5649562f76312e302e302f6c696e75782f676f312e342e32")),
            mixHash = ByteString(Hex.decode("7e0b76b9b1698947617c1ea7cb7c36f47aefc2c4095c6df90aa6e2b3da6e49ac")),
            nonce = ByteString(Hex.decode("edcbf5efad298bb3")),
            treasuryOptOut = None
          )
        )
      )
    )
    val block94 = Block(
      BlockHeader(
        parentHash = ByteString(Hex.decode("fd07e36cfaf327801e5696134b36678f6a89fb1e8f017f2411a29d0ae810ab8b")),
        ommersHash = ByteString(Hex.decode("7766c4251396a6833ccbe4be86fbda3a200dccbe6a15d80ae3de5378b1540e04")),
        beneficiary = ByteString(Hex.decode("d7e30ae310c1d1800f5b641baa7af95b2e1fd98c")),
        stateRoot = ByteString(Hex.decode("fcd09860439502fcd9e3f208ed043bfeffc985b3a289f69e79f9b81f32f9010e")),
        transactionsRoot = ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
        receiptsRoot = ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
        logsBloom = ByteString(
          Hex.decode(
            "00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
          )
        ),
        difficulty = BigInt("17864037202"),
        number = 94,
        gasLimit = 5000,
        gasUsed = 0,
        unixTimestamp = 1438270431,
        extraData = ByteString(Hex.decode("476574682f6b6c6f737572652f76312e302e302d66633739643332642f6c696e")),
        mixHash = ByteString(Hex.decode("33fe497dae796c62f261d10304786b0c63cd59030a0f96c811a88e90e7d02b0f")),
        nonce = ByteString(Hex.decode("36da15d93277d947")),
        treasuryOptOut = None
      ),
      BlockBody(
        Seq.empty,
        Seq[BlockHeader](
          BlockHeader(
            parentHash = ByteString(Hex.decode("6da5970538eba5db93162e219182fca7e093cfe4fbd8dd0b82789adb25dcbb42")),
            ommersHash = ByteString(Hex.decode("1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347")),
            beneficiary = ByteString(Hex.decode("bb7b8287f3f0a933474a79eae42cbca977791171")),
            stateRoot = ByteString(Hex.decode("57a99a5a9d93104df18d3cdba5d1c84e1e5c22527c0c375e59e38944311bfe14")),
            transactionsRoot =
              ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
            receiptsRoot = ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
            logsBloom = ByteString(
              Hex.decode(
                "00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
              )
            ),
            difficulty = BigInt("17829189056"),
            number = 90,
            gasLimit = 5000,
            gasUsed = 0,
            unixTimestamp = 1438270421,
            extraData = ByteString(Hex.decode("476574682f4c5649562f76312e302e302f6c696e75782f676f312e342e32")),
            mixHash = ByteString(Hex.decode("0688a1217172b2f81b168a25459a2cad5cc2337aab1d17b30c7d803c565bf0b3")),
            nonce = ByteString(Hex.decode("efc94c53e5ad946a")),
            treasuryOptOut = None
          )
        )
      )
    )
    val block95 = Block(
      BlockHeader(
        parentHash = ByteString(Hex.decode("665586bdd5aefc860f8ff2d186617544d5aa6e5ae7203bf54b26f310be372e91")),
        ommersHash = ByteString(Hex.decode("1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347")),
        beneficiary = ByteString(Hex.decode("bb7b8287f3f0a933474a79eae42cbca977791171")),
        stateRoot = ByteString(Hex.decode("1b39e9e77df97fd50ad637eea384839ba6aec610015450518936c9fd8e20efed")),
        transactionsRoot = ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
        receiptsRoot = ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
        logsBloom = ByteString(
          Hex.decode(
            "00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
          )
        ),
        difficulty = BigInt("17872759876"),
        number = 95,
        gasLimit = 5000,
        gasUsed = 0,
        unixTimestamp = 1438270433,
        extraData = ByteString(Hex.decode("476574682f4c5649562f76312e302e302f6c696e75782f676f312e342e32")),
        mixHash = ByteString(Hex.decode("d1ed067b52da47010ab970117677233d9da738b22fe955899f9ed2e4360fc924")),
        nonce = ByteString(Hex.decode("75d5ff831690242a")),
        treasuryOptOut = None
      ),
      BlockBody(Seq.empty, Seq.empty)
    )
    val block96 = Block(
      BlockHeader(
        parentHash = ByteString(Hex.decode("c0f772db658b2279a736f232e75d98629a53d36086e34a18f9fe65a4650d50a7")),
        ommersHash = ByteString(Hex.decode("1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347")),
        beneficiary = ByteString(Hex.decode("1b7047b4338acf65be94c1a3e8c5c9338ad7d67c")),
        stateRoot = ByteString(Hex.decode("563401469b5c16712b251e6042620838dcf4b88b6c59969a86faa94c7b4402d8")),
        transactionsRoot = ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
        receiptsRoot = ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
        logsBloom = ByteString(
          Hex.decode(
            "00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
          )
        ),
        difficulty = BigInt("17881486809"),
        number = 96,
        gasLimit = 5000,
        gasUsed = 0,
        unixTimestamp = 1438270435,
        extraData = ByteString(Hex.decode("426974636f696e2069732054484520426c6f636b636861696e2e")),
        mixHash = ByteString(Hex.decode("b4f571ecf4dcebe75260f4929a01de8b2c19c161bea20dda91bfb92298f7262f")),
        nonce = ByteString(Hex.decode("1dbc948cb756c2b9")),
        treasuryOptOut = None
      ),
      BlockBody(Seq.empty, Seq.empty)
    )

    val block89 = Block(
      BlockHeader(
        parentHash = ByteString(Hex.decode("ba39b4ee19e5db0f5a85c344aa2bd2e7b0cdb2404b7d5c0e6cdc08c83f85083e")),
        ommersHash = ByteString(Hex.decode("1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347")),
        beneficiary = ByteString(Hex.decode("1b7047b4338acf65be94c1a3e8c5c9338ad7d67c")),
        stateRoot = ByteString(Hex.decode("17e5e23d006df68fd13c0f3ce71a5e510abeee28b88a4e207fce171fbc3ef60d")),
        transactionsRoot = ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
        receiptsRoot = ByteString(Hex.decode("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")),
        logsBloom = ByteString(
          Hex.decode(
            "00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
          )
        ),
        difficulty = BigInt("17820487647"),
        number = 89,
        gasLimit = 5000,
        gasUsed = 0,
        unixTimestamp = 1438270418,
        extraData = ByteString(Hex.decode("426974636f696e2069732054484520426c6f636b636861696e2e")),
        mixHash = ByteString(Hex.decode("d7c06ea893693857f10675f02502ce63d74fe80b3bce9749b507888f3acd0b5d")),
        nonce = ByteString(Hex.decode("1d48377931a68d12")),
        treasuryOptOut = None
      ),
      BlockBody(Seq.empty, Seq.empty)
    )

    val ommersBlockParentHash: ByteString = block96.header.hash

    blockchain.save(block89)
    blockchain.save(block90)
    blockchain.save(block91)
    blockchain.save(block92)
    blockchain.save(block93)
    blockchain.save(block94)
    blockchain.save(block95)
    blockchain.save(block96)

  }
}