iron_test/
request.rs

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
/// Contains convenience methods for making requests to Iron Handlers.
use hyper;
use hyper::buffer::BufReader;
use hyper::net::NetworkStream;

use iron;
use iron::prelude::*;
use iron::{Handler, headers, Headers, method, Url};

use std::io::Cursor;

use super::mock_stream::MockStream;

/// Convenience method for making GET requests to Iron Handlers.
pub fn get<H: Handler>(path: &str, headers: Headers, handler: &H) -> IronResult<Response> {
    request(method::Get, path, "", headers, handler)
}

/// Convenience method for making POST requests with a body to Iron Handlers.
pub fn post<H: Handler>(path: &str, headers: Headers, body: &str, handler: &H) -> IronResult<Response> {
    request(method::Post, path, body, headers, handler)
}

/// Convenience method for making PATCH requests with a body to Iron Handlers.
pub fn patch<H: Handler>(path: &str, headers: Headers, body: &str, handler: &H) -> IronResult<Response> {
    request(method::Patch, path, body, headers, handler)
}

/// Convenience method for making PUT requests with a body to Iron Handlers.
pub fn put<H: Handler>(path: &str, headers: Headers, body: &str, handler: &H) -> IronResult<Response> {
    request(method::Put, path, body, headers, handler)
}

/// Convenience method for making DELETE requests to Iron Handlers.
pub fn delete<H: Handler>(path: &str, headers: Headers, handler: &H) -> IronResult<Response> {
    request(method::Delete, path, "", headers, handler)
}

/// Convenience method for making OPTIONS requests to Iron Handlers.
pub fn options<H: Handler>(path: &str, headers: Headers, handler: &H) -> IronResult<Response> {
    request(method::Options, path, "", headers, handler)
}

/// Convenience method for making HEAD requests to Iron Handlers.
pub fn head<H: Handler>(path: &str, headers: Headers, handler: &H) -> IronResult<Response> {
    request(method::Head, path, "", headers, handler)
}

/// Constructs an Iron::Request from the given parts and passes it to the
/// `handle` method on the given Handler.
pub fn request<H: Handler>(method: method::Method,
                           path: &str,
                           body: &str,
                           headers: Headers,
                           handler: &H) -> IronResult<Response> {
    let url = Url::parse(path).unwrap();
    // From iron 0.5.x, iron::Request contains private field. So, it is not good to
    // create iron::Request directly. Make http request and parse it with hyper,
    // and make iron::Request from hyper::client::Request.
    let mut buffer = String::new();
    buffer.push_str(&format!("{} {} HTTP/1.1\r\n", &method, url));
    buffer.push_str(&format!("Content-Length: {}\r\n", body.len() as u64));
    for header in headers.iter() {
        buffer.push_str(&format!("{}: {}\r\n", header.name(), header.value_string()));
    }
    if !headers.has::<headers::UserAgent>() {
        buffer.push_str(&format!("User-Agent: iron-test\r\n"));
    }
    buffer.push_str("\r\n");
    buffer.push_str(body);

    let addr = "127.0.0.1:3000".parse().unwrap();
    let protocol = match url.scheme() {
        "http" => iron::Protocol::http(),
        "https" => iron::Protocol::https(),
        _ => panic!("unknown protocol {}", url.scheme()),
    };

    let mut stream = MockStream::new(Cursor::new(buffer.as_bytes().to_vec()));
    let mut buf_reader = BufReader::new(&mut stream as &mut NetworkStream);
    let http_request = hyper::server::Request::new(&mut buf_reader, addr).unwrap();
    let mut req = Request::from_http(http_request, addr, &protocol).unwrap();

    handler.handle(&mut req)
}

#[cfg(test)]
mod test {
    extern crate router;
    extern crate urlencoded;

    use iron::headers::Headers;
    use iron::mime::Mime;
    use iron::prelude::*;
    use iron::{Handler, headers, status};

    use response::{extract_body_to_bytes, extract_body_to_string};

    use self::urlencoded::UrlEncodedBody;

    use super::*;

    struct HelloWorldHandler;

    impl Handler for HelloWorldHandler {
        fn handle(&self, _: &mut Request) -> IronResult<Response> {
            Ok(Response::with((status::Ok, "Hello, world!")))
        }
    }

    struct RouterHandler;

    impl Handler for RouterHandler {
        fn handle(&self, req: &mut Request) -> IronResult<Response> {
            let params = req.extensions
                .get::<router::Router>()
                .expect("Expected to get a Router from the request extensions.");
            let id = params.find("id").unwrap();

            Ok(Response::with((status::Ok, id)))
        }
    }

    struct PostHandler;

    impl Handler for PostHandler {
        fn handle(&self, req: &mut Request) -> IronResult<Response> {
            let body = req.get_ref::<UrlEncodedBody>()
                .expect("Expected to extract a UrlEncodedBody from the request");
            let first_name = body.get("first_name").unwrap()[0].to_owned();
            let last_name = body.get("last_name").unwrap()[0].to_owned();

            Ok(Response::with((status::Ok, first_name + " " + &last_name)))
        }
    }

    struct UpdateHandler;

    impl Handler for UpdateHandler {
        fn handle(&self, req: &mut Request) -> IronResult<Response> {
            let id = {
                let params = req.extensions
                    .get::<router::Router>()
                    .expect("Expected to get a Router from request extensions.");
                params.find("id").unwrap().parse::<String>().unwrap()
            };

            let body = req.get_ref::<UrlEncodedBody>()
                .expect("Expected to extract a UrlEncodedBody from the request");
            let first_name = body.get("first_name").unwrap()[0].to_owned();
            let last_name = body.get("last_name").unwrap()[0].to_owned();

            Ok(Response::with((status::Ok, [first_name, last_name, id].join(" "))))
        }
    }

    struct OptionsHandler;

    impl Handler for OptionsHandler {
        fn handle(&self, _: &mut Request) -> IronResult<Response> {
            Ok(Response::with((status::Ok, "ALLOW: GET,POST")))
        }
    }

    struct HeadHandler;

    impl Handler for HeadHandler {
        fn handle(&self, _: &mut Request) -> IronResult<Response> {
            Ok(Response::with(status::Ok))
        }
    }

    struct UserAgentHandler;

    impl Handler for UserAgentHandler {
        fn handle(&self, req: &mut Request) -> IronResult<Response> {
            let user_agent = req.headers.get::<headers::UserAgent>().unwrap();
            Ok(Response::with((status::Ok, user_agent.to_string())))
        }
    }

    #[test]
    fn test_get() {
        let response = get("http://localhost:3000", Headers::new(), &HelloWorldHandler);
        let result = extract_body_to_bytes(response.unwrap());

        assert_eq!(result, b"Hello, world!");
    }

    #[test]
    fn test_post() {
        let mut headers = Headers::new();
        let mime: Mime = "application/x-www-form-urlencoded".parse().unwrap();
        headers.set(headers::ContentType(mime));
        let response = post("http://localhost:3000/users",
                            headers,
                            "first_name=Example&last_name=User",
                            &PostHandler);
        let result = extract_body_to_bytes(response.unwrap());

        assert_eq!(result, b"Example User");
    }

    #[test]
    fn test_patch() {
        let mut router = router::Router::new();
        router.patch("/users/:id", UpdateHandler, "update");

        let mut headers = Headers::new();
        let mime: Mime = "application/x-www-form-urlencoded".parse().unwrap();
        headers.set(headers::ContentType(mime));
        let response = patch("http://localhost:3000/users/1",
                             headers,
                             "first_name=Example&last_name=User",
                             &router);
        let result = extract_body_to_bytes(response.unwrap());

        assert_eq!(result, b"Example User 1");
    }

    #[test]
    fn test_put() {
        let mut router = router::Router::new();
        router.put("/users/:id", UpdateHandler, "update");

        let mut headers = Headers::new();
        let mime: Mime = "application/x-www-form-urlencoded".parse().unwrap();
        headers.set(headers::ContentType(mime));
        let response = put("http://localhost:3000/users/2",
                           headers,
                           "first_name=Example&last_name=User",
                           &router);
        let result = extract_body_to_bytes(response.unwrap());

        assert_eq!(result, b"Example User 2");
    }

    #[test]
    fn test_delete() {
        let mut router = router::Router::new();
        router.delete("/:id", RouterHandler, "update");

        let response = delete("http://localhost:3000/1", Headers::new(), &router);
        let result = extract_body_to_bytes(response.unwrap());

        assert_eq!(result, b"1");
    }


    #[test]
    fn test_options() {
        let response = options("http://localhost:3000/users/options", Headers::new(), &OptionsHandler);
        let result = extract_body_to_bytes(response.unwrap());

        assert_eq!(result, b"ALLOW: GET,POST");
    }

    #[test]
    fn test_head() {
        let response = head("http://localhost:3000/users", Headers::new(), &HeadHandler);
        let result = extract_body_to_bytes(response.unwrap());

        assert_eq!(result, b"");
    }

    #[test]
    fn test_user_agent_not_provided() {
        let headers = Headers::new();
        let response = get("http://localhost:3000/", headers, &UserAgentHandler);
        let result = extract_body_to_string(response.unwrap());

        assert_eq!(result, "iron-test");
    }

    #[test]
    fn test_user_agent_provided() {
        let mut headers = Headers::new();
        headers.set(headers::UserAgent("CustomAgent/1.0".to_owned()));
        let response = get("http://localhost:3000/", headers, &UserAgentHandler);
        let result = extract_body_to_string(response.unwrap());

        assert_eq!(result, "CustomAgent/1.0");
    }

    #[test]
    fn test_percent_decoded_url() {
        let response = head("http://localhost:3000/some path with spaces", Headers::new(), &HeadHandler);
        let result = extract_body_to_bytes(response.unwrap());

        assert_eq!(result, b"");
    }
}