Trait fuzzcheck::builder::FuzzTestFunction

pub trait FuzzTestFunction<T, FT: ?Sized, ImplId> {
    type NormalizedFunction: for<'a> Fn(&'a T) -> bool;
    fn test_function(self) -> Self::NormalizedFunction;
}

A function that can be fuzz-tested.

Strictly speaking, fuzzcheck can only test functions of type Fn(&T) -> bool. Using this trait, we can convert other types of functions to Fn(&T) -> bool automatically. For example, a function fn foo(x: &u8) -> Result<T, E> can be wrapped in a closure that returns true iff foo(x) is Ok(..).

Associated Types

type NormalizedFunction: for<'a> Fn(&'a T) -> bool

Required methods

fn test_function(self) -> Self::NormalizedFunction

Implementors

impl<T, FT: ?Sized, F> FuzzTestFunction<T, FT, ReturnBool> for F where
    T: Borrow<FT>,
    F: Fn(&FT) -> bool, 

type NormalizedFunction = impl Fn(&T) -> bool

impl<T, FT: ?Sized, F> FuzzTestFunction<T, FT, ReturnVoid> for F where
    T: Borrow<FT>,
    F: Fn(&FT), 

type NormalizedFunction = impl Fn(&T) -> bool

impl<T, FT: ?Sized, F, S, E> FuzzTestFunction<T, FT, ReturnResult> for F where
    T: Borrow<FT>,
    F: Fn(&FT) -> Result<E, S>, 

type NormalizedFunction = impl Fn(&T) -> bool