I'm still missing something about lifetimes (perhaps just practice?) for I can't seem to be able to rephrase all this into something that would allow both owned and borrowed types- I mean, without inverting the control and making the API terribly annoying to use...
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use bincode;
use serde::{Deserialize, Serialize};
use tantivy::{query::AllQuery, schema::SchemaBuilder, Document, Index, SegmentReader};
use cantine_derive::{Aggregable, AggregableCollector, RangeStats};
#[derive(Aggregable, Serialize, Deserialize, Default)]
pub struct Feat {
pub a: u64,
pub b: Option<i16>,
pub c: f32,
pub d: Option<f64>,
}
#[test]
fn aggregation_result_from_query() {
let res = FeatAggregationResult::from(FeatAggregationQuery {
a: vec![0..10, 5..15],
b: vec![-10..120],
..FeatAggregationQuery::default()
});
assert_eq!(2, res.a.len());
assert_eq!(1, res.b.len());
assert!(res.c.is_empty());
assert!(res.d.is_empty());
}
fn agg_counts<T: serde::Serialize>(items: &[RangeStats<T>]) -> Vec<u64> {
items.iter().map(|s| s.count).collect()
}
#[test]
fn collect_works_as_intended() {
let query = FeatAggregationQuery {
a: vec![],
b: vec![-10..0, 0..10],
c: vec![42.0..420.0],
..FeatAggregationQuery::default()
};
let mut agg = FeatAggregationResult::from(&query);
agg.collect(
&query,
&Feat {
a: 10,
b: None,
c: 100.0,
..Feat::default()
},
);
assert!(agg.a.is_empty());
assert_eq!(vec![0, 0], agg_counts(&agg.b));
assert_eq!(vec![1], agg_counts(&agg.c));
agg.collect(
&query,
&Feat {
b: Some(300),
c: 0.0,
..Feat::default()
},
);
// No change
assert!(agg.a.is_empty());
assert_eq!(vec![0, 0], agg_counts(&agg.b));
assert_eq!(vec![1], agg_counts(&agg.c));
agg.collect(
&query,
&Feat {
b: Some(-5),
c: 0.0,
..Feat::default()
},
);
assert_eq!(vec![1, 0], agg_counts(&agg.b));
assert_eq!(vec![1], agg_counts(&agg.c));
agg.collect(
&query,
&Feat {
b: Some(7),
c: 400.0,
..Feat::default()
},
);
assert_eq!(vec![1, 1], agg_counts(&agg.b));
assert_eq!(vec![2], agg_counts(&agg.c));
}
#[test]
fn agg_query_full_range_generation() {
assert_eq!(
FeatAggregationQuery {
a: vec![std::u64::MIN..std::u64::MAX],
b: vec![std::i16::MIN..std::i16::MAX],
c: vec![std::f32::MIN..std::f32::MAX],
d: vec![std::f64::MIN..std::f64::MAX],
},
FeatAggregationQuery::full_range(),
);
}
#[test]
fn collector_integration() -> tantivy::Result<()> {
let mut builder = SchemaBuilder::new();
let bytes_field = builder.add_bytes_field("bincode_feat");
let index = Index::create_in_ram(builder.build());
let mut writer = index.writer_with_num_threads(1, 3_000_000)?;
let add_feat = |feat| {
let mut doc = Document::new();
doc.add_bytes(
bytes_field,
bincode::serialize(&feat).expect("serialize ok"),
);
writer.add_document(doc);
};
add_feat(Feat {
a: 1,
c: 1.0,
..Feat::default()
});
add_feat(Feat {
a: 2,
b: Some(2),
c: 2.0,
..Feat::default()
});
add_feat(Feat {
a: 3,
b: Some(3),
c: 3.0,
d: Some(3.0),
});
writer.commit()?;
let query = FeatAggregationQuery {
a: vec![0..1, 2..4],
b: vec![0..3],
c: vec![0.0..0.1, 1.0..3.1],
d: vec![42.0..100.0],
};
let collector =
AggregableCollector::<Feat, _>::new(query, move |seg_reader: &SegmentReader| {
let reader = seg_reader.fast_fields().bytes(bytes_field).unwrap();
move |doc| bincode::deserialize(reader.get_bytes(doc)).ok()
});
let reader = index.reader()?;
let searcher = reader.searcher();
let agg_result = searcher.search(&AllQuery, &collector)?;
assert_eq!(vec![0, 2], agg_counts(&agg_result.a));
assert_eq!(vec![1], agg_counts(&agg_result.b));
assert_eq!(vec![0, 3], agg_counts(&agg_result.c));
assert_eq!(vec![0], agg_counts(&agg_result.d));
Ok(())
}
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