Struct TargetedShrinker 

pub struct TargetedShrinker<T> { /* private fields */ }

Shrinker that shrinks toward a specific target value

Instead of shrinking toward a “simple” value (like 0 or empty), this shrinker tries to shrink toward a specific target value.

Examples

use protest_extras::shrinking::TargetedShrinker;

// Shrink toward 42
let shrinker = TargetedShrinker::new_int(100, 42);

let shrunk: Vec<_> = shrinker.shrink().take(5).collect();
// Yields values getting closer to 42
assert!(shrunk.iter().all(|&x| x >= 42 && x <= 100));

Implementations

impl TargetedShrinker<i32>

pub fn new_int(current: i32, target: i32) -> Self

Create a new targeted shrinker for integers

pub fn shrink(self) -> TargetedShrinkIterator<i32>

Generate shrinking steps toward the target

impl TargetedShrinker<f64>

pub fn new_float(current: f64, target: f64) -> Self

Create a new targeted shrinker for floats

pub fn shrink(self) -> TargetedShrinkIterator<f64>

Generate shrinking steps toward the target

Trait Implementations

impl<T: Clone> Clone for TargetedShrinker<T>

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug> Debug for TargetedShrinker<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.