Add tests for 'raw_upload' example.

examples/raw_upload/src/main.rs

@@ -3,14 +3,14 @@
 
 extern crate rocket;
 
-use std::io;
+#[cfg(test)] mod tests;
 
+use std::io;
 use rocket::Data;
-use rocket::response::content::Plain;
 
 #[post("/upload", format = "text/plain", data = "<data>")]
-fn upload(data: Data) -> io::Result<Plain<String>> {
-    data.stream_to_file("/tmp/upload.txt").map(|n| Plain(n.to_string()))
+fn upload(data: Data) -> io::Result<String> {
+    data.stream_to_file("/tmp/upload.txt").map(|n| n.to_string())
 }
 
 #[get("/")]
@@ -18,6 +18,10 @@ fn index() -> &'static str {
     "Upload your text files by POSTing them to /upload."
 }
 
-fn main() {
-    rocket::ignite().mount("/", routes![index, upload]).launch();
+fn rocket() -> rocket::Rocket {
+    rocket::ignite().mount("/", routes![index, upload])
+}
+
+fn main() {
+    rocket().launch();
 }

examples/raw_upload/src/tests.rs

@@ -0,0 +1,36 @@
+use rocket::testing::MockRequest;
+use rocket::http::{Status, ContentType};
+use rocket::http::Method::*;
+
+use std::io::Read;
+use std::fs::File;
+
+#[test]
+fn test_index() {
+    let rocket = super::rocket();
+    let mut req = MockRequest::new(Get, "/");
+    let mut res = req.dispatch_with(&rocket);
+
+    assert_eq!(res.body_string(), Some(super::index().to_string()));
+}
+
+#[test]
+fn test_raw_upload() {
+    const UPLOAD_CONTENTS: &str = "Hey! I'm going to be uploaded. :D Yay!";
+
+    let rocket = super::rocket();
+    let mut req = MockRequest::new(Post, "/upload")
+        .header(ContentType::Plain)
+        .body(UPLOAD_CONTENTS);
+
+    // Do the upload. Make sure we get the expected results.
+    let mut res = req.dispatch_with(&rocket);
+    assert_eq!(res.status(), Status::Ok);
+    assert_eq!(res.body_string(), Some(UPLOAD_CONTENTS.len().to_string()));
+
+    // Ensure we find the body in the /tmp/upload.txt file.
+    let mut file_contents = String::new();
+    let mut file = File::open("/tmp/upload.txt").expect("open upload.txt file");
+    file.read_to_string(&mut file_contents).expect("read upload.txt");
+    assert_eq!(&file_contents, UPLOAD_CONTENTS);
+}