Examples with Blockchain org.hyperledger.besu.ethereum.chain.Blockchain used on opensource projects

Example 26 with Blockchain

use of org.hyperledger.besu.ethereum.chain.Blockchain in project besu by hyperledger.

the class BftQueryServiceImplTest method getValidatorsReturnsAddresses.

@Test
public void getValidatorsReturnsAddresses() {
    final BftQueryService service = new BftQueryServiceImpl(bftBlockInterface, blockchain, validatorProvider, null, null);
    final List<Address> validators = signingKeys.stream().map(nodeKey -> Util.publicKeyToAddress(nodeKey.getPublicKey())).collect(Collectors.toList());
    when(validatorProvider.getValidatorsAtHead()).thenReturn(validators);
    assertThat(service.getValidatorsForLatestBlock()).containsExactlyElementsOf(validators);
}

Example 27 with Blockchain

use of org.hyperledger.besu.ethereum.chain.Blockchain in project besu by hyperledger.

the class ProposerSelectorTest method whenProposerSelfRemovesSelectsNextProposerInLineEvenWhenSticky.

@Test
public void whenProposerSelfRemovesSelectsNextProposerInLineEvenWhenSticky() {
    final long PREV_BLOCK_NUMBER = 2;
    final ConsensusRoundIdentifier roundId = new ConsensusRoundIdentifier(PREV_BLOCK_NUMBER + 1, 0);
    // arbitrarily selected
    final Address localAddr = AddressHelpers.ofValue(10);
    // LocalAddr will be in index 2 - the next proposer will also be in 2 (as prev proposer is
    // removed)
    final List<Address> validatorList = createValidatorList(localAddr, 2, 2);
    validatorList.remove(localAddr);
    // Note the signer of the Previous block was not included.
    final Blockchain blockchain = createMockedBlockChainWithHeadOf(PREV_BLOCK_NUMBER, localAddr, validatorList);
    final ProposerSelector uut = new ProposerSelector(blockchain, blockInterface, false, validatorProvider);
    assertThat(uut.selectProposerForRound(roundId)).isEqualTo(validatorList.get(2));
}

Example 28 with Blockchain

use of org.hyperledger.besu.ethereum.chain.Blockchain in project besu by hyperledger.

the class ProposerSelectorTest method stickyProposerDoesNotChangeOnRoundZeroOfNextBlock.

@Test
public void stickyProposerDoesNotChangeOnRoundZeroOfNextBlock() {
    final long PREV_BLOCK_NUMBER = 2;
    final ConsensusRoundIdentifier roundId = new ConsensusRoundIdentifier(PREV_BLOCK_NUMBER + 1, 0);
    // arbitrarily selected
    final Address localAddr = AddressHelpers.ofValue(10);
    final List<Address> validatorList = createValidatorList(localAddr, 4, 0);
    final Blockchain blockchain = createMockedBlockChainWithHeadOf(PREV_BLOCK_NUMBER, localAddr, validatorList);
    final ProposerSelector uut = new ProposerSelector(blockchain, blockInterface, false, validatorProvider);
    final Address nextProposer = uut.selectProposerForRound(roundId);
    assertThat(nextProposer).isEqualTo(localAddr);
}

Example 29 with Blockchain

use of org.hyperledger.besu.ethereum.chain.Blockchain in project besu by hyperledger.

the class ProposerSelectorTest method stickyProposerChangesOnSubsequentRoundsAtSameBlockHeight.

@Test
public void stickyProposerChangesOnSubsequentRoundsAtSameBlockHeight() {
    final long PREV_BLOCK_NUMBER = 2;
    ConsensusRoundIdentifier roundId = new ConsensusRoundIdentifier(PREV_BLOCK_NUMBER + 1, 0);
    // arbitrarily selected
    final Address localAddr = AddressHelpers.ofValue(10);
    final List<Address> validatorList = createValidatorList(localAddr, 4, 0);
    final Blockchain blockchain = createMockedBlockChainWithHeadOf(PREV_BLOCK_NUMBER, localAddr, validatorList);
    final ProposerSelector uut = new ProposerSelector(blockchain, blockInterface, false, validatorProvider);
    assertThat(uut.selectProposerForRound(roundId)).isEqualTo(localAddr);
    roundId = new ConsensusRoundIdentifier(PREV_BLOCK_NUMBER + 1, 1);
    assertThat(uut.selectProposerForRound(roundId)).isEqualTo(validatorList.get(0));
    roundId = new ConsensusRoundIdentifier(PREV_BLOCK_NUMBER + 1, 2);
    assertThat(uut.selectProposerForRound(roundId)).isEqualTo(validatorList.get(1));
}

Example 30 with Blockchain

use of org.hyperledger.besu.ethereum.chain.Blockchain in project besu by hyperledger.

the class ProposerSelectorTest method roundRobinChangesProposerOnRoundZeroOfNextBlock.

@Test
public void roundRobinChangesProposerOnRoundZeroOfNextBlock() {
    final long PREV_BLOCK_NUMBER = 2;
    // arbitrarily selected
    final Address localAddr = AddressHelpers.ofValue(10);
    final List<Address> validatorList = createValidatorList(localAddr, 0, 4);
    final Blockchain blockchain = createMockedBlockChainWithHeadOf(PREV_BLOCK_NUMBER, localAddr, validatorList);
    final ProposerSelector uut = new ProposerSelector(blockchain, blockInterface, true, validatorProvider);
    final ConsensusRoundIdentifier roundId = new ConsensusRoundIdentifier(PREV_BLOCK_NUMBER + 1, 0);
    final Address nextProposer = uut.selectProposerForRound(roundId);
    assertThat(nextProposer).isEqualTo(validatorList.get(1));
}