Struct mocker::ClosureMocker

pub struct ClosureMocker<T: Fn() -> bool> { /* fields omitted */ }

A built-in Mocker, which takes in a closure that returns a boolean. Useful if you don’t feel like implementing the Mocker trait yourself.

Example of a ClosureMocker which makes all the letters uppercase:

let text = "hello, World!";
let mut mocker = ClosureMocker::new(|| {
   true
});
assert_eq!("HELLO, WORLD!", mock(&text, &mut mocker));

Implementations

impl<T: Fn() -> bool> ClosureMocker<T>

pub fn new(closure: T) -> Self

Creates a new ClosureMocker. The parameter must be a closure which returns a bool. The closure will be executed to determine whether the letter should be uppercase or not.

Trait Implementations

impl<T: Fn() -> bool> Mocker for ClosureMocker<T>

fn uppercase(&mut self) -> bool

Executes the closure and returns the value.