Examples with BFTValidatorSet com.radixdlt.hotstuff.bft.BFTValidatorSet used on opensource projects

Example 11 with BFTValidatorSet

use of com.radixdlt.hotstuff.bft.BFTValidatorSet in project radixdlt by radixdlt.

the class WeightedRotatingLeadersTest method when_validators_distributed_by_fibonacci__then_leaders_also_distributed_in_fibonacci.

@Test
public void when_validators_distributed_by_fibonacci__then_leaders_also_distributed_in_fibonacci() {
    // fibonacci sequence can quickly explode so keep sizes small
    final int validatorSetSize = 8;
    final int sizeOfCache = 4;
    final Supplier<IntStream> fibonacci = () -> Stream.iterate(new int[] { 1, 1 }, t -> new int[] { t[1], t[0] + t[1] }).mapToInt(t -> t[0]).limit(validatorSetSize);
    final int sumOfPower = fibonacci.get().sum();
    this.validatorsInOrder = fibonacci.get().mapToObj(p -> BFTValidator.from(BFTNode.random(), UInt256.from(p))).collect(ImmutableList.toImmutableList());
    BFTValidatorSet validatorSet = BFTValidatorSet.from(validatorsInOrder);
    this.weightedRotatingLeaders = new WeightedRotatingLeaders(validatorSet, sizeOfCache);
    Map<BFTNode, UInt256> proposerCounts = Stream.iterate(View.of(0), View::next).limit(sumOfPower).map(this.weightedRotatingLeaders::getProposer).collect(groupingBy(p -> p, collectingAndThen(counting(), UInt256::from)));
    Map<BFTNode, UInt256> expected = validatorsInOrder.stream().collect(toMap(BFTValidator::getNode, BFTValidator::getPower));
    assertThat(proposerCounts).isEqualTo(expected);
}