psrutils 0.2.7

A crate with a few utilities to facilitate pulsar science projects in rust.
Documentation 
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#[allow(unused)]
use super::*;
#[allow(unused)]
use std::io::{BufReader, LineWriter};

#[test]
fn incomplete_parinfo() {
    let minimal = [
        "RA 23:59:59.999\n",
        "DEC 359:59:59.999\n",
        "PSR J0000-9999\n",
        "PEPOCH 55000\n",
        "F0 9001\n",
        "DM 99\n",
    ];

    for i in 2..6 {
        let subset =
            minimal
                .iter()
                .enumerate()
                .fold(
                    String::new(),
                    |a, (j, line)| if i == j { a } else { a + line },
                );

        let par = Parfile::read(BufReader::new(subset.as_bytes()));
        assert!(par.is_err());
    }
}

#[test]
fn minimal_parinfo() {
    let minimal = "
        PSR    J0000-9999\n\
        RA     23:59:59.999\n\
        DEC    45:59:59.999\n\
        PEPOCH 55000\n\
        F0     9001\n\
        DM 1001.1\n\
    ";

    let par = Parfile::read(BufReader::new(minimal.as_bytes()));
    match par {
        Ok(_) => {}
        Err(err) => panic!("{}", err),
    }
}

#[test]
fn duplicate_params() {
    // Text param
    let lines = "
        PSR J0000-9999\n\
        RA 23:59:59.999\n\
        DEC 359:59:59.999\n\
        PEPOCH 55000\n\
        F0 9001\n\
        PSR J3164-9999\n\
        DM 0.1\n\
    ";

    let par = Parfile::read(BufReader::new(lines.as_bytes()));
    assert!(par.is_err());

    // f64 param
    let lines = "
        PSR J0000-9999\n\
        RA 23:59:59.999\n\
        DEC 359:59:59.999\n\
        PEPOCH 55000\n\
        F0 9001\n\
        F1 0.0002\n\
        F1 0.002\n\
        DM 99.99\n\
        F1 0.002\n\
    ";

    let par = Parfile::read(BufReader::new(lines.as_bytes()));
    assert!(par.is_err());

    // Flag
    let lines = "
        PSR J0000-9999\n\
        RA 23:59:59.999\n\
        DEC 359:59:59.999\n\
        IMP\n\
        PEPOCH 55000\n\
        F0 9001\n\
        DM 99.99\n\
        IMP\n\
    ";

    let par = Parfile::read(BufReader::new(lines.as_bytes()));
    assert!(par.is_err());
}

#[test]
fn write_read_invariance() {
    let minimal = "
        PSR     J0000-9999\n\
        RA      23:59:59.999\n\
        DEC     45:59:59.999\n\
        PEPOCH  55000\n\
        F0      9001\n\
        DM      1001.1\n\
        F1      -0.02\n\
        MODE 1\n\
        MODEL   BT\n\
        NOTRACK y\n\
        NITS    1000\n\
        DM_SERIES   TAYLOR\n\
    ";

    let par = Parfile::read(BufReader::new(minimal.as_bytes())).unwrap();
    let mut writer = LineWriter::new(Vec::new());
    par.write(&mut writer).unwrap();
    let src = writer.into_inner().unwrap();

    let par = Parfile::read(BufReader::new(src.as_slice())).unwrap();
    let mut writer = LineWriter::new(Vec::new());
    par.write(&mut writer).unwrap();
    let dst = writer.into_inner().unwrap();

    assert_eq!(src, dst);
}