tantivy/tests/core.rs

extern crate tantivy;
extern crate itertools;
extern crate byteorder;
extern crate regex;

use tantivy::core::postings::{VecPostings, intersection};
use tantivy::core::postings::Postings;
use tantivy::core::analyzer::tokenize;
use tantivy::core::serial::*;
use tantivy::core::schema::*;
use tantivy::core::codec::SimpleCodec;
use tantivy::core::global::*;
use tantivy::core::writer::IndexWriter;
use tantivy::core::directory::{Directory, generate_segment_name, SegmentId};
use std::ops::DerefMut;
use tantivy::core::writer::SimplePostingsWriter;
use tantivy::core::postings::PostingsWriter;
use std::io::{ BufWriter, Write};
use regex::Regex;
use std::convert::From;

#[test]
fn test_intersection() {
    let left = VecPostings::new(vec!(1, 3, 9));
    let right = VecPostings::new(vec!(3, 4, 9, 18));
    let inter = intersection(&left, &right);
    let vals: Vec<DocId> = inter.iter().collect();
    assert_eq!(vals, vec!(3, 9));
}

#[test]
fn test_tokenizer() {
    let words: Vec<&str> = tokenize("hello happy tax payer!").collect();
    assert_eq!(words, vec!("hello", "happy", "tax", "payer"));
}

#[test]
fn test_indexing() {
    let directory = Directory::from("/home/paul/temp/idx");
    {
        let mut index_writer = IndexWriter::open(&directory);
        {
            let mut doc = Document::new();
            doc.set(Field(1), "a b");
            index_writer.add(doc);
        }
        {
            let mut doc = Document::new();
            doc.set(Field(1), "a b c");
            index_writer.add(doc);
        }
        {
            let mut doc = Document::new();
            doc.set(Field(1), "a b c d");
            index_writer.add(doc);
        }
        let commit_result = index_writer.commit();
        // println!("{:?}", commit_result.err());
        assert!(commit_result.is_ok());
        // assert!(commit_result.is_ok());

        // SimpleCodec::write(closed_index_writer, output);
        // let mut term_cursor = closed_index_writer.term_cursor();
        // loop {
        //     match term_cursor.next() {
        //         Some((term, doc_it)) => {
        //             println!("{:?}", term);
        //             for doc in doc_it {
        //                 println!("  doc {}", doc);
        //             }
        //         },
        //         None => {
        //             break;
        //         }
        //     }
        // }
        // assert!(false);
    }
    {
        // TODO add index opening stuff
        // let index_reader = IndexReader::open(&directory);
    }
}


#[test]
fn test_new_segment() {
    let SegmentId(segment_name) = generate_segment_name();
    let segment_ptn = Regex::new(r"^_[a-z0-9]{8}$").unwrap();
    assert!(segment_ptn.is_match(&segment_name));
}