use mockers::Scenario;
///! Test that traits with associated types can be mocked.
use mockers_derive::mocked;

#[mocked]
pub trait A {
    type Item;
    fn create(&self) -> Self::Item;
}

#[mocked]
pub trait B {
    type Item;
    fn create(&self, item: Self::Item) -> Vec<(bool, Self::Item)>;
}

/// Tests that mock may be created for trait with associated types.
#[test]
fn test_associated_type() {
    let scenario = Scenario::new();
    let (mock, handle) = scenario.create_mock_for::<dyn A<Item = i32>>();
    scenario.expect(handle.create().and_return(2));
    assert_eq!(mock.create(), 2);
}

/// Tests that all references to `Self` in trait definition are
/// properly qualified with trait path in function signatures.
#[test]
fn test_self_type_qualification() {
    let scenario = Scenario::new();
    let (mock, handle) = scenario.create_mock_for::<dyn B<Item = i32>>();
    scenario.expect(handle.create(1).and_return(vec![(true, 2)]));
    assert_eq!(mock.create(1), vec![(true, 2)]);
}