public void testNestNestedAggs() throws Exception {
SearchResponse response =
client()
.prepareSearch("idx_nested_nested_aggs")
.addAggregation(
nested("level1", "nested1")
.subAggregation(
terms("a")
.field("nested1.a")
.collectMode(aggCollectionMode)
.subAggregation(
nested("level2", "nested1.nested2")
.subAggregation(sum("sum").field("nested1.nested2.b")))))
.get();
assertSearchResponse(response);
Nested level1 = response.getAggregations().get("level1");
assertThat(level1, notNullValue());
assertThat(level1.getName(), equalTo("level1"));
assertThat(level1.getDocCount(), equalTo(2L));
StringTerms a = level1.getAggregations().get("a");
Terms.Bucket bBucket = a.getBucketByKey("a");
assertThat(bBucket.getDocCount(), equalTo(1L));
Nested level2 = bBucket.getAggregations().get("level2");
assertThat(level2.getDocCount(), equalTo(1L));
Sum sum = level2.getAggregations().get("sum");
assertThat(sum.getValue(), equalTo(2d));
a = level1.getAggregations().get("a");
bBucket = a.getBucketByKey("b");
assertThat(bBucket.getDocCount(), equalTo(1L));
level2 = bBucket.getAggregations().get("level2");
assertThat(level2.getDocCount(), equalTo(1L));
sum = level2.getAggregations().get("sum");
assertThat(sum.getValue(), equalTo(2d));
}
