Function actix_web::test::init_service

pub fn init_service<R, S, B, E>(
    app: R
) -> impl Service<Request = Request, Response = ServiceResponse<B>, Error = E> where
    R: IntoNewService<S>,
    S: NewService<Config = ServerConfig, Request = Request, Response = ServiceResponse<B>, Error = E>,
    S::InitError: Debug, 

This method accepts application builder instance, and constructs service.

use actix_service::Service;
use actix_web::{test, web, App, HttpResponse, http::StatusCode};

#[test]
fn test_init_service() {
    let mut app = test::init_service(
        App::new()
            .service(web::resource("/test").to(|| HttpResponse::Ok()))
    );

    // Create request object
    let req = test::TestRequest::with_uri("/test").to_request();

    // Execute application
    let resp = test::block_on(app.call(req)).unwrap();
    assert_eq!(resp.status(), StatusCode::OK);
}