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use actix_web::{http::StatusCode, Error, HttpRequest, HttpResponse, Responder};
use serde::Serialize;
pub struct FormatMsg<T> {
pub message: T,
pub code: StatusCode,
}
impl<T> FormatMsg<T> {
/// Deconstruct to an inner value
pub fn into_inner(self) -> T {
self.message
}
pub fn ok(message: T) -> Self {
FormatMsg {
message: message,
code: StatusCode::OK,
}
}
}
impl<T: Serialize> Responder for FormatMsg<T> {
type Error = Error;
type Future = Result<HttpResponse, Error>;
fn respond_to(self, _: &HttpRequest) -> Self::Future {
let body = match serde_json::to_string(&self.message) {
Ok(body) => body,
Err(e) => return Err(e.into()),
};
Ok(HttpResponse::build(self.code)
.content_type("application/json")
.body(body))
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::routes::*;
use crate::routes::tests::*;
use serde::ser::{Error, Serializer};
#[test]
fn test_into_inner() {
// Arrange
let msg = NotUnderstood {path: vec![]};
let msg_ref = msg.clone();
let formatted = FormatMsg {
message: msg.as_outgoing(),
code: StatusCode::OK,
};
// Act
let result = formatted.into_inner();
// Assert
assert_eq!(result.result_type, "NOT_UNDERSTOOD");
assert_eq!(result.content, msg_ref);
}
#[test]
fn test_ok() {
// Arrange
let msg = NotUnderstood {path: vec![]};
let msg_ref = msg.clone();
// Act
let result = FormatMsg::ok(msg);
// Assert
assert_eq!(result.message, msg_ref);
assert_eq!(result.code, StatusCode::OK);
}
#[test]
fn test_responder() {
// Arrange
let msg = NotUnderstood {path: vec![]};
let msg_ref = msg.clone();
let formatted = FormatMsg {
message: msg,
code: StatusCode::NOT_FOUND,
};
let request = gen_request("/api/404", None);
// Act
let result = &formatted.respond_to(&request).unwrap();
// Assert
assert_eq!(result.status(), StatusCode::NOT_FOUND);
assert_eq!(result.headers().get("content-type").unwrap(), "application/json");
let content = get_message::<NotUnderstood>(result);
assert_eq!(content, msg_ref);
}
struct InvalidMessage {}
impl Serialize for InvalidMessage {
fn serialize<S>(&self, _: S) -> Result<S::Ok, S::Error> where S: Serializer {
Err(Error::custom("oops".to_string()))
}
}
#[test]
fn test_responder_serde_error() {
// Arrange
let msg = InvalidMessage {};
let formatted = FormatMsg {
message: msg,
code: StatusCode::NOT_FOUND,
};
let request = gen_request("/api/404", None);
// Act
let result = formatted.respond_to(&request);
// Assert
assert!(result.is_err());
}
}
|
