rust-average/tests/max.rs

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2017-05-30 10:54:14 +02:00
#![cfg_attr(feature = "cargo-clippy", allow(float_cmp, map_clone))]
2017-05-24 19:16:52 +02:00
extern crate average;
extern crate core;
use core::iter::Iterator;
use average::Max;
#[test]
fn trivial() {
let mut m = Max::new();
m.add(2.);
m.add(1.);
assert_eq!(m.max(), 2.);
m.add(3.);
m.add(1.);
assert_eq!(m.max(), 3.)
}
#[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 max_total: Max = sequence.iter().map(|x| *x).collect();
assert_eq!(max_total.max(), 9.);
let mut max_left: Max = left.iter().map(|x| *x).collect();
assert_eq!(max_left.max(), sequence[mid - 1]);
let max_right: Max = right.iter().map(|x| *x).collect();
assert_eq!(max_right.max(), 9.);
max_left.merge(&max_right);
assert_eq!(max_total.max(), max_left.max());
}
}