Adds tests for JSON example. Emit warning from JSON FromData.

This also includes a tiny change to the `mk-docs` script to build a
blank index at the root of the docs.

contrib/src/json/mod.rs

@@ -4,7 +4,7 @@ extern crate serde_json;
 use std::ops::{Deref, DerefMut};
 use std::io::Read;
 
-use rocket::outcome::{Outcome, IntoOutcome};
+use rocket::outcome::Outcome;
 use rocket::request::Request;
 use rocket::data::{self, Data, FromData};
 use rocket::response::{self, Responder, content};
@@ -78,7 +78,13 @@ impl<T: Deserialize> FromData for JSON<T> {
         }
 
         let reader = data.open().take(MAX_SIZE);
-        serde_json::from_reader(reader).map(|val| JSON(val)).into_outcome()
+        match serde_json::from_reader(reader).map(|val| JSON(val)) {
+            Ok(value) => Outcome::Success(value),
+            Err(e) => {
+                error_!("Couldn't parse JSON body: {:?}", e);
+                Outcome::Failure((Status::BadRequest, e))
+            }
+        }
     }
 }
 

examples/hello_person/src/main.rs

@@ -6,7 +6,7 @@ extern crate rocket;
 #[cfg(test)] mod tests;
 
 #[get("/hello/<name>/<age>")]
-fn hello(name: &str, age: i8) -> String {
+fn hello(name: &str, age: u8) -> String {
     format!("Hello, {} year old named {}!", age, name)
 }
 

examples/hello_person/src/tests.rs

@@ -1,7 +1,7 @@
 use super::rocket;
 use rocket::testing::MockRequest;
 use rocket::http::Method::*;
-    use rocket::http::Status;
+use rocket::http::Status;
 
 fn test(uri: &str, expected: String) {
     let rocket = rocket::ignite().mount("/", routes![super::hello, super::hi]);
@@ -29,8 +29,8 @@ fn test_hello() {
 #[test]
 fn test_failing_hello() {
     test_404("/hello/Mike/1000");
-    test_404("/hello/Mike/128");
     test_404("/hello/Mike/-129");
+    test_404("/hello/Mike/-1");
 }
 
 #[test]

examples/json/Cargo.toml

@@ -16,3 +16,6 @@ lazy_static = "*"
 path = "../../contrib"
 default-features = false
 features = ["json"]
+
+[dev-dependencies]
+rocket = { path = "../../lib", features = ["testing"] }

examples/json/src/main.rs

@@ -7,6 +7,8 @@ extern crate serde_json;
 #[macro_use] extern crate rocket_contrib;
 #[macro_use] extern crate serde_derive;
 
+#[cfg(test)] mod tests;
+
 use rocket_contrib::JSON;
 use std::collections::HashMap;
 use std::sync::Mutex;
@@ -27,22 +29,9 @@ struct Message {
 }
 
 // TODO: This example can be improved by using `route` with muliple HTTP verbs.
-// To be precise, put/post could/should look like:
-// #[route(PUT, POST, path = "/<id>", format = "application/json")]
-// fn f(method: Method, id: ID, message: JSON<Message>) -> Option<JSON<SimpleMap>> {
-//     let mut hashmap = MAP.lock().unwrap();
-//     let exists = hashmap.contains_key(&id);
-//     if method == Method::Put && exists || method == Method::Post && !exists {
-//         hashmap.insert(id, message.0.contents);
-//         return Ok(JSON(map!{ "status" => "ok" }))
-//     }
-//
-//     None
-// }
-
 #[post("/<id>", format = "application/json", data = "<message>")]
 fn new(id: ID, message: JSON<Message>) -> JSON<SimpleMap> {
-    let mut hashmap = MAP.lock().unwrap();
+    let mut hashmap = MAP.lock().expect("map lock.");
     if hashmap.contains_key(&id) {
         JSON(map!{
             "status" => "error",

examples/json/src/tests.rs

@@ -0,0 +1,95 @@
+use rocket;
+use rocket::testing::MockRequest;
+use rocket::http::Method::*;
+use rocket::http::{Status, ContentType};
+use rocket::Response;
+
+macro_rules! run_test {
+    ($req:expr, $test_fn:expr) => ({
+        let rocket = rocket::ignite()
+            .mount("/message", routes![super::new, super::update, super::get])
+            .catch(errors![super::not_found]);
+
+        $test_fn($req.dispatch_with(&rocket));
+    })
+}
+
+#[test]
+fn bad_get_put() {
+    // Try to get a message with an ID that doesn't exist.
+    let mut req = MockRequest::new(Get, "/message/99").header(ContentType::JSON);
+    run_test!(req, |mut response: Response| {
+        assert_eq!(response.status(), Status::NotFound);
+
+        let body = response.body().unwrap().into_string().unwrap();
+        assert!(body.contains("error"));
+        assert!(body.contains("Resource was not found."));
+    });
+
+    // Try to get a message with an invalid ID.
+    let mut req = MockRequest::new(Get, "/message/hi").header(ContentType::JSON);
+    run_test!(req, |mut response: Response| {
+        assert_eq!(response.status(), Status::NotFound);
+        let body = response.body().unwrap().into_string().unwrap();
+        assert!(body.contains("error"));
+    });
+
+    // Try to put a message without a proper body.
+    let mut req = MockRequest::new(Put, "/message/80").header(ContentType::JSON);
+    run_test!(req, |response: Response| {
+        assert_eq!(response.status(), Status::BadRequest);
+    });
+
+    // Try to put a message for an ID that doesn't exist.
+    let mut req = MockRequest::new(Put, "/message/80")
+        .header(ContentType::JSON)
+        .body(r#"{ "contents": "Bye bye, world!" }"#);
+
+    run_test!(req, |response: Response| {
+        assert_eq!(response.status(), Status::NotFound);
+    });
+}
+
+#[test]
+fn post_get_put_get() {
+    // Check that a message with ID 1 doesn't exist.
+    let mut req = MockRequest::new(Get, "/message/1").header(ContentType::JSON);
+    run_test!(req, |response: Response| {
+        assert_eq!(response.status(), Status::NotFound);
+    });
+
+    // Add a new message with ID 1.
+    let mut req = MockRequest::new(Post, "/message/1")
+        .header(ContentType::JSON)
+        .body(r#"{ "contents": "Hello, world!" }"#);
+
+    run_test!(req, |response: Response| {
+        assert_eq!(response.status(), Status::Ok);
+    });
+
+    // Check that the message exists with the correct contents.
+    let mut req = MockRequest::new(Get, "/message/1") .header(ContentType::JSON);
+    run_test!(req, |mut response: Response| {
+        assert_eq!(response.status(), Status::Ok);
+        let body = response.body().unwrap().into_string().unwrap();
+        assert!(body.contains("Hello, world!"));
+    });
+
+    // Change the message contents.
+    let mut req = MockRequest::new(Put, "/message/1")
+        .header(ContentType::JSON)
+        .body(r#"{ "contents": "Bye bye, world!" }"#);
+
+    run_test!(req, |response: Response| {
+        assert_eq!(response.status(), Status::Ok);
+    });
+
+    // Check that the message exists with the updated contents.
+    let mut req = MockRequest::new(Get, "/message/1") .header(ContentType::JSON);
+    run_test!(req, |mut response: Response| {
+        assert_eq!(response.status(), Status::Ok);
+        let body = response.body().unwrap().into_string().unwrap();
+        assert!(!body.contains("Hello, world!"));
+        assert!(body.contains("Bye bye, world!"));
+    });
+}

lib/src/response/responder.rs

@@ -224,13 +224,13 @@ impl<'r, R: Responder<'r>> Responder<'r> for Option<R> {
     }
 }
 
-/// If `self` is `Ok`, responds with the wrapped `Responder`. Otherwise prints a
+/// If `self` is `Ok`, responds with the wrapped `Responder`. Otherwise prints
-/// warning message with the `Err` value returns an `Err` of
+/// an error message with the `Err` value returns an `Err` of
 /// `Status::InternalServerError`.
 impl<'r, R: Responder<'r>, E: fmt::Debug> Responder<'r> for Result<R, E> {
     default fn respond(self) -> Result<Response<'r>, Status> {
         self.map(|r| r.respond()).unwrap_or_else(|e| {
-            warn_!("Response was `Err`: {:?}.", e);
+            error_!("Response was `Err`: {:?}.", e);
             Err(Status::InternalServerError)
         })
     }

scripts/mk-docs.sh

@@ -25,3 +25,6 @@ cargo clean
 mk_doc $LIB_DIR
 mk_doc $CODEGEN_DIR
 mk_doc $CONTRIB_DIR  --all-features
+
+# Blank index, for redirection.
+touch ${DOC_DIR}/index.html