### Question:
LongSumAggregator extends AbstractAggregator { @Override public Point toPoint(long startEpochNanos, long epochNanos, Labels labels) { return LongPoint.create(startEpochNanos, epochNanos, labels, current.get()); }  static AggregatorFactory getFactory(); @Override Point toPoint(long startEpochNanos, long epochNanos, Labels labels); @Override void doRecordLong(long value);  }### Answer:
@Test void toPoint() { Aggregator aggregator = LongSumAggregator.getFactory().getAggregator(); assertThat(getPoint(aggregator).getValue()).isEqualTo(0); }