add a integration test for index page

src/lib.rs

@@ -1,3 +1,60 @@
 pub mod engines;
 pub mod server;
 pub mod search_results_handler;
+
+use std::net::TcpListener;
+
+use crate::server::routes;
+
+use actix_files as fs;
+use actix_web::{middleware::Logger, web, App, HttpServer, dev::Server};
+use handlebars::Handlebars;
+
+
+/// Runs the web server on the provided TCP listener and returns a `Server` instance.
+/// 
+/// # Arguments
+///
+/// * `listener` - A `TcpListener` instance representing the address and port to listen on.
+///
+/// # Returns
+///
+/// Returns a `Result` containing a `Server` instance on success, or an `std::io::Error` on failure.
+///
+/// # Example
+/// 
+/// ```
+/// use std::net::TcpListener;
+/// use web_server::Server;
+///
+/// let listener = TcpListener::bind("127.0.0.1:8080").expect("Failed to bind address");
+/// let server = Server::run(listener).expect("Failed to start server");
+/// ```
+pub fn run(listener: TcpListener) -> std::io::Result<Server> {
+    let mut handlebars: Handlebars = Handlebars::new();
+
+    handlebars
+        .register_templates_directory(".html", "./public/templates")
+        .unwrap();
+
+    let handlebars_ref: web::Data<Handlebars> = web::Data::new(handlebars);
+
+    let server = HttpServer::new(move || {
+        App::new()
+            .app_data(handlebars_ref.clone())
+            .wrap(Logger::default()) // added logging middleware for logging.
+            // Serve images and static files (css and js files).
+            .service(fs::Files::new("/static", "./public/static").show_files_listing())
+            .service(fs::Files::new("/images", "./public/images").show_files_listing())
+            .service(routes::robots_data) // robots.txt
+            .service(routes::index) // index page
+            .service(routes::search) // search page
+            .service(routes::about) // about page
+            .service(routes::settings) // settings page
+            .default_service(web::route().to(routes::not_found)) // error page
+    })
+    // Start server on 127.0.0.1 with the user provided port number. for example 127.0.0.1:8080.
+    .listen(listener)?
+    .run();
+    Ok(server)
+}