@Override
    public Optional<Decision> onBufferConsumed(BufferIndexAndChannel consumedBuffer) {
        return Optional.of(Decision.NO_ACTION);
    }
@Test
    void testOnBufferConsumed() {
        BufferIndexAndChannel bufferIndexAndChannel = new BufferIndexAndChannel(0, 0);
        Optional<Decision> bufferConsumedDecision =
                spillStrategy.onBufferConsumed(bufferIndexAndChannel);
        assertThat(bufferConsumedDecision).hasValue(Decision.NO_ACTION);
    }