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/// Boundaries or the extent of some quantity
#[derive(Debug)]
pub struct Bounds {
pub lower: f64,
pub upper: f64,
}
impl Bounds {
/// Constructs a Bounds from any two values, ensuring that the lesser
/// is assigned to lower, and the greater to upper
pub fn new(val1: f64, val2: f64) -> Self {
if val1 <= val2 {
Bounds {
lower: val1,
upper: val2,
}
} else {
Bounds {
lower: val2,
upper: val1,
}
}
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn in_order_test() {
let bounds = Bounds::new(0.0, 1.0);
assert_eq!(
bounds.lower,
0.0,
"lower value is {} but should be {}",
bounds.lower,
0.0
);
assert_eq!(
bounds.upper,
1.0,
"lower value is {} but should be {}",
bounds.upper,
1.0
);
}
#[test]
fn out_of_order_test() {
let bounds = Bounds::new(1.0, 0.0);
assert_eq!(
bounds.lower,
0.0,
"lower value is {} but should be {}",
bounds.lower,
0.0
);
assert_eq!(
bounds.upper,
1.0,
"lower value is {} but should be {}",
bounds.upper,
1.0
);
}
}