for (int i = 0; i < buckets; i++) {
            InternalAggregations inner = withNested ? InternalAggregations.from(List.of(newTerms(false))) : InternalAggregations.EMPTY;
            resultBuckets.add(new StringTerms.Bucket(new BytesRef("test" + i), i, inner, false, 0, DocValueFormat.RAW));
        }
        return new StringTerms(
            "test",
            BucketOrder.key(true),
            BucketOrder.key(true),

            for (BytesRef term : randomTerms) {
                InternalAggregations subAggs;
                if (withNested) {
                    subAggs = InternalAggregations.from(Collections.singletonList(newTerms(rand, dict, false)));
                } else {
                    subAggs = InternalAggregations.EMPTY;
                }