Function faux::matcher::eq_against

pub fn eq_against<Arg>(
    expected: impl PartialEq<Arg> + Debug
) -> impl ArgMatcher<Arg> where
    Arg: ?Sized, 

Returns an equality matcher for different types.

Unlike eq, it matches even if the types are different. This, however, comes at the cost of not being able to match across borrows.

use faux::matcher::{self, ArgMatcher};

// `String` implements `PartialEq<&str>`
assert!(matcher::eq_against("x".to_string()).matches(&"x"));
assert!(!matcher::eq_against("x".to_string()).matches(&"y"));