Function plain_backing_empty_segment

nodedb-vector/src/segment_backing/plain.rs:197–208

()

    #[test]
    fn plain_backing_empty_segment() {
        let dir = tempdir().unwrap();
        let path = dir.path().join("empty.ndvs");
        let seg = MmapVectorSegment::create(&path, 4, &[]).unwrap();
        let backing = PlainMmapBacking::new(seg);

        assert_eq!(backing.len(), 0);
        assert!(backing.is_empty());
        assert!(backing.get_vector(0).is_none());
        assert!(backing.get_surrogate(0).is_none());
        backing.prefetch(0);
    }
}