53 lines
1.3 KiB
Rust
53 lines
1.3 KiB
Rust
#![cfg_attr(feature = "cargo-clippy", allow(float_cmp, map_clone))]
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extern crate average;
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extern crate core;
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#[cfg(feature = "serde")]
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extern crate serde_json;
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use core::iter::Iterator;
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use average::{Max, Estimate, Merge};
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#[test]
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fn trivial() {
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let mut m = Max::new();
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m.add(2.);
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m.add(1.);
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assert_eq!(m.max(), 2.);
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m.add(3.);
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m.add(1.);
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assert_eq!(m.max(), 3.)
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}
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#[cfg(feature = "serde")]
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#[test]
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fn trivial_serde() {
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let mut m = Max::new();
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m.add(2.);
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m.add(1.);
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m.add(3.);
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m.add(1.);
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let b = serde_json::to_string(&m).unwrap();
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assert_eq!(&b, "{\"x\":3.0}");
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let c: Max = serde_json::from_str(&b).unwrap();
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assert_eq!(c.max(), 3.)
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}
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#[test]
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fn merge() {
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let sequence: &[f64] = &[1., 2., 3., 4., 5., 6., 7., 8., 9.];
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for mid in 1..sequence.len() {
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let (left, right) = sequence.split_at(mid);
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let max_total: Max = sequence.iter().map(|x| *x).collect();
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assert_eq!(max_total.max(), 9.);
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let mut max_left: Max = left.iter().map(|x| *x).collect();
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assert_eq!(max_left.max(), sequence[mid - 1]);
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let max_right: Max = right.iter().map(|x| *x).collect();
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assert_eq!(max_right.max(), 9.);
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max_left.merge(&max_right);
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assert_eq!(max_total.max(), max_left.max());
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}
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}
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