mod tests {
    use async_std::task::block_on;
    use oslo_lib::{State};
    use tide::{
        http::{Method, Request, Response, StatusCode, Url},
        Result, Server,
    };

    async fn build_app() -> Server<State> {
        oslo_lib::build_app().await.unwrap()
    }

    fn url(path: &str) -> Url {
        Url::parse("http://localhost:8080")
            .unwrap()
            .join(path)
            .unwrap()
    }

    #[test]
    fn test_login_page() -> Result<()> {
        block_on(async {
            let app = build_app().await;
            let req = Request::new(Method::Get, url("login"));
            let mut res: Response = app.respond(req).await?;
            assert_eq!(res.status(), 200);
            assert!(res.body_string().await?.contains("Login"));
            Ok(())
        })
    }

    #[test]
    fn test_logging_in() -> Result<()> {
        block_on(async {
            let app = build_app().await;
            let mut req = Request::new(Method::Post, url("login"));
            req.set_content_type(tide::http::mime::MULTIPART_FORM);
            let username = std::env::var("ADMIN_USERNAME").unwrap();
            let password = std::env::var("ADMIN_PASSWORD").unwrap();
            req.replace_body(format!("username={}&password={}", username, password));
            let res: Response = app.respond(req).await?;
            assert_eq!(res.status(), StatusCode::Found);
            assert_eq!(res.header("location").unwrap(), "/");
            Ok(())
        })
    }

    #[test]
    fn test_invalid_credentials() -> Result<()> {
        block_on(async {
            let app = build_app().await;
            let mut req = Request::new(Method::Post, url("login"));
            req.set_content_type(tide::http::mime::MULTIPART_FORM);
            req.replace_body("username=invalid&password=credentials");
            let res: Response = app.respond(req).await?;
            assert_eq!(res.status(), StatusCode::Found);
            assert_eq!(res.header("location").unwrap(), "/login");
            Ok(())
        })
    }

    #[test]
    fn test_accessing_protected_route_as_gest() -> Result<()> {
        block_on(async {
            let app = build_app().await;
            let req = Request::new(Method::Get, url("/posts/1/edit"));
            let res: Response = app.respond(req).await?;
            assert_eq!(res.status(), StatusCode::Found);
            assert_eq!(res.header("location").unwrap(), "/login");
            Ok(())
        })
    }
}