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use rustc_serialize::json;
use datatype::{AccessToken, Error, Url};
use http::Client;
/// Authenticate with the specified OAuth2 server to retrieve a new `AccessToken`.
pub fn authenticate(server: Url, client: &Client) -> Result<AccessToken, Error> {
debug!("authenticating at {}", server);
let resp_rx = client.post(server, None);
let resp = resp_rx.recv().expect("no authenticate response received");
let data = try!(resp);
let body = try!(String::from_utf8(data));
Ok(try!(json::decode(&body)))
}
#[cfg(test)]
mod tests {
use super::*;
use datatype::{AccessToken, Url};
use http::TestClient;
fn test_server() -> Url {
"http://localhost:8000".parse().unwrap()
}
#[test]
fn test_authenticate() {
let token = r#"{
"access_token": "token",
"token_type": "type",
"expires_in": 10,
"scope": "scope1 scope2"
}"#;
let client = TestClient::from(vec![token.to_string()]);
let expect = AccessToken {
access_token: "token".to_string(),
token_type: "type".to_string(),
expires_in: 10,
scope: "scope1 scope2".to_string()
};
assert_eq!(expect, authenticate(test_server(), &client).unwrap());
}
#[test]
fn test_authenticate_bad_json() {
let client = TestClient::from(vec![r#"{"apa": 1}"#.to_string()]);
let expect = r#"Failed to decode JSON: MissingFieldError("access_token")"#;
assert_eq!(expect, format!("{}", authenticate(test_server(), &client).unwrap_err()));
}
}
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