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