use std::fmt::Display;
use mockers::Scenario;
use mockers_derive::mocked;

#[test]
fn test_impl_trait_boxed() {
    #[mocked(TraitMock)]
    trait Trait {
        fn foo(&self) -> impl Display;
    }

    let scenario = Scenario::new();
    let (mock, handle) = scenario.create_mock::<TraitMock>();
    scenario.expect(handle.foo().and_return(Box::new(42)));

    assert_eq!(mock.foo().to_string(), "42");
}

#[test]
fn test_impl_trait_sized() {
    #[mocked(TraitMock)]
    trait Trait {
        #[mocked(return_type=u32)]
        fn foo(&self) -> impl Sized;
    }

    let scenario = Scenario::new();
    let (mock, handle) = scenario.create_mock::<TraitMock>();
    scenario.expect(handle.foo().and_return(42));

    assert_eq!(mock.foo().to_string(), "42");
}