OpenTally/tests/aec.rs

92 lines
3.1 KiB
Rust

/* OpenTally: Open-source election vote counting
* Copyright © 2021 Lee Yingtong Li (RunasSudo)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
mod utils;
use opentally::election::Election;
use opentally::numbers::Rational;
use opentally::stv;
use csv::StringRecord;
use flate2::bufread::GzDecoder;
use utf8_chars::BufReadCharsExt;
use std::fs::File;
use std::io::{self, BufReader};
#[test]
fn aec_tas19_rational() {
// Read CSV file
let reader = csv::ReaderBuilder::new()
.has_headers(false)
.from_path("tests/data/aec-senate-formalpreferences-24310-TAS.csv")
.expect("IO Error");
let records: Vec<StringRecord> = reader.into_records().map(|r| r.expect("Syntax Error")).collect();
let mut candidates: Vec<&str> = records.iter().skip(2).map(|r| &r[0]).collect();
// Remove exhausted/LBF rows
candidates.truncate(candidates.len() - 2);
let stages: Vec<usize> = records.first().unwrap().iter().skip(1).step_by(2).map(|s| s.parse().unwrap()).collect();
// Decompress BLT
let file = File::open("tests/data/aec-senate-formalpreferences-24310-TAS.blt.gz").expect("IO Error");
let file_reader = io::BufReader::new(file);
let gz_decoder = GzDecoder::new(file_reader);
let mut reader = BufReader::new(gz_decoder);
let chars = reader.chars().map(|r| r.expect("IO Error")).peekable();
// Read BLT
let election: Election<Rational> = Election::from_blt(chars).expect("Syntax Error");
// Validate candidate names
for (i, candidate) in candidates.iter().enumerate() {
assert_eq!(election.candidates[i].name, *candidate);
}
let stv_opts = stv::STVOptions {
round_surplus_fractions: None,
round_values: None,
round_votes: Some(0),
round_quota: Some(0),
sum_surplus_transfers: stv::SumSurplusTransfersMode::SingleStep,
meek_surplus_tolerance: String::new(),
normalise_ballots: false,
quota: stv::QuotaType::Droop,
quota_criterion: stv::QuotaCriterion::GreaterOrEqual,
quota_mode: stv::QuotaMode::Static,
ties: vec![],
surplus: stv::SurplusMethod::UIG,
surplus_order: stv::SurplusOrder::ByOrder,
transferable_only: false,
exclusion: stv::ExclusionMethod::ByValue,
meek_nz_exclusion: false,
early_bulk_elect: true,
bulk_exclude: true,
defer_surpluses: false,
meek_immediate_elect: false,
min_threshold: "0".to_string(),
constraints_path: None,
constraint_mode: stv::ConstraintMode::GuardDoom,
hide_excluded: false,
sort_votes: false,
pp_decimals: 2,
};
utils::validate_election::<Rational>(stages, records, election, stv_opts, None, &["exhausted", "lbf"]);
}