rust-average/tests/min.rs
Vinzent Steinberg 5d6d67bac9 Move add and merge to trait
This should make it possible to write more generic code.
2017-06-25 15:39:12 +02:00

37 lines
954 B
Rust

#![cfg_attr(feature = "cargo-clippy", allow(float_cmp, map_clone))]
extern crate average;
extern crate core;
use core::iter::Iterator;
use average::{Min, Estimate, Merge};
#[test]
fn trivial() {
let mut m = Min::new();
m.add(1.);
m.add(2.);
assert_eq!(m.min(), 1.);
m.add(-1.);
m.add(1.);
assert_eq!(m.min(), -1.)
}
#[test]
fn merge() {
let sequence: &[f64] = &[1., 2., 3., 4., 5., 6., 7., 8., 9.];
for mid in 1..sequence.len() {
let (left, right) = sequence.split_at(mid);
let min_total: Min = sequence.iter().map(|x| *x).collect();
assert_eq!(min_total.min(), 1.);
let mut min_left: Min = left.iter().map(|x| *x).collect();
assert_eq!(min_left.min(), 1.);
let min_right: Min = right.iter().map(|x| *x).collect();
assert_eq!(min_right.min(), sequence[mid]);
min_left.merge(&min_right);
assert_eq!(min_total.min(), min_left.min());
}
}