#![allow(non_snake_case)]

extern crate he_di;
#[macro_use] extern crate he_di_derive;

use he_di::ContainerBuilder;
use he_di::Error as DIError;
use he_di::container::ValidatorError;

trait Foo : ::std::fmt::Debug {
    fn foo(&self);
}

#[derive(Component, Debug)]
#[interface(Foo)]
struct FooImpl {
    value: String,
}

impl Foo for FooImpl {
    fn foo(&self) {
        println!("FooImpl > foo > value = {}", self.value);
    }
}

#[test]
fn invalid_registration_no_as_type() {
    let mut builder = ContainerBuilder::new();
    builder.register::<FooImpl>();

    let container = builder.build();
    assert!(&container.is_err());
    if let DIError::RegistrationError(err) = container.unwrap_err() {  
        let expected_msg = "invalid entry: Component 'FooImpl' hasn't been registered to a type (use `as_trait()` in the registration chain)".to_string();
        assert_eq!(err, ValidatorError::EmptyValue(expected_msg));
    } else {
        panic!("invalid state > container should be a RegistrationError");
    }
}