Add Rust 2015 example.

Cargo.toml

@@ -41,4 +41,5 @@ members = [
   "examples/tls",
   "examples/fairings",
   "examples/hello_2018",
+  "examples/hello_2015",
 ]

examples/hello_2015/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "hello_2015"
+version = "0.0.0"
+workspace = "../../"
+edition = "2015"
+publish = false
+
+[dependencies]
+rocket = { path = "../../core/lib" }

examples/hello_2015/src/main.rs

@@ -0,0 +1,14 @@
+#![feature(proc_macro_hygiene, decl_macro)]
+
+#[macro_use] extern crate rocket;
+
+#[cfg(test)] mod tests;
+
+#[get("/")]
+fn hello() -> &'static str {
+    "Hello, Rust 2015!"
+}
+
+fn main() {
+    rocket::ignite().mount("/", routes![hello]).launch();
+}

examples/hello_2015/src/tests.rs

@@ -0,0 +1,50 @@
+use rocket::{self, routes, local::Client};
+
+#[test]
+fn hello_world() {
+    let rocket = rocket::ignite().mount("/", routes![super::hello]);
+    let client = Client::new(rocket).unwrap();
+    let mut response = client.get("/").dispatch();
+    assert_eq!(response.body_string(), Some("Hello, Rust 2015!".into()));
+}
+
+// Tests unrelated to the example.
+mod scoped_uri_tests {
+    use rocket::{get, routes};
+
+    mod inner {
+        use rocket::uri;
+
+        #[rocket::get("/")]
+        pub fn hello() -> String {
+            format!("Hello! Try {}.", uri!(super::hello_name: "Rust 2015"))
+        }
+    }
+
+    #[get("/<name>")]
+    fn hello_name(name: String) -> String {
+        format!("Hello, {}! This is {}.", name, rocket::uri!(hello_name: &name))
+    }
+
+    fn rocket() -> rocket::Rocket {
+        rocket::ignite()
+            .mount("/", routes![hello_name])
+            .mount("/", rocket::routes![inner::hello])
+    }
+
+    use rocket::local::Client;
+
+    #[test]
+    fn test_inner_hello() {
+        let client = Client::new(rocket()).unwrap();
+        let mut response = client.get("/").dispatch();
+        assert_eq!(response.body_string(), Some("Hello! Try /Rust%202015.".into()));
+    }
+
+    #[test]
+    fn test_hello_name() {
+        let client = Client::new(rocket()).unwrap();
+        let mut response = client.get("/Rust%202015").dispatch();
+        assert_eq!(response.body_string().unwrap(), "Hello, Rust 2015! This is /Rust%202015.");
+    }
+}