问题描述
我正在使用rust和actix构建Web api服务。
我想测试一条路线，并检查接收到的响应主体是否符合我的期望。 但是我正在努力将接收到的主体（ResponseBody）转换为Json / Bson。被调用的路由实际上返回application / json。
感谢您的帮助。
let mut app = test::init_service(App::new()
.data(AppState { database: db.clone() })
.route("/recipes/{id}",web::post().to(add_one_recipe))).await;
let payload = create_one_recipe().as_document().unwrap().clone();
let req = test::TestRequest::post()
.set_json(&payload).uri("/recipes/new").to_request();
let mut resp = test::call_service(&mut app,req).await;
let body: ResponseBody<Body> = resp.take_body(); // Here i want the body as Binary,String or Json/Bson what the response actually is (application/json)
解决方法
actix/examples 存储库通过定义新特征并在 ResponseBody<Body> 类型上实现它以在可能的情况下将其内容作为 &str 返回来实现这一点：
trait BodyTest {
fn as_str(&self) -> &str;
}
impl BodyTest for ResponseBody<Body> {
fn as_str(&self) -> &str {
match self {
ResponseBody::Body(ref b) => match b {
Body::Bytes(ref by) => std::str::from_utf8(&by).unwrap(),_ => panic!(),},ResponseBody::Other(ref b) => match b {
Body::Bytes(ref by) => std::str::from_utf8(&by).unwrap(),}
}
}
之后你可以简单地做：
assert_eq!(resp.response().body().as_str(),"Your name is John");
这些摘录的完整代码参考来自：https://github.com/actix/examples/blob/master/forms/form/src/main.rs
,看看Body和ResponseBody，它看起来像这样：
use actix_web::{web,App,HttpResponse,HttpServer,Responder};
use serde::{Deserialize,Serialize};
#[derive(Serialize,Deserialize)]
struct Greet {
name: String,}
async fn greet() -> impl Responder {
let body = serde_json::to_string(&Greet {
name: "Test".to_owned(),})
.unwrap();
HttpResponse::Ok()
.content_type("application/json")
.body(body)
}
#[actix_rt::main]
async fn main() -> std::io::Result<()> {
HttpServer::new(|| App::new().route("/",web::get().to(greet)))
.bind("127.0.0.1:8000")?
.run()
.await
}
#[cfg(test)]
mod tests {
use super::*;
use actix_web::{body::Body,test,web,App};
use serde_json::json;
#[actix_rt::test]
async fn test_greet_get() {
let mut app = test::init_service(App::new().route("/",web::get().to(greet))).await;
let req = test::TestRequest::with_header("content-type","application/json").to_request();
let mut resp = test::call_service(&mut app,req).await;
let body = resp.take_body();
let body = body.as_ref().unwrap();
assert!(resp.status().is_success());
assert_eq!(
&Body::from(json!({"name":"Test"})),// or serde.....
body
);
}
}
running 1 test
test tests::test_greet_get ... ok
test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
#[actix_rt::test]
pub async fn test_index() {
let mut app = test::init_service(App::new().service(ping)).await;
let req = test::TestRequest::get().uri("/ping").to_request();
let result = test::read_response(&mut app,req).await;
assert_eq!(result,Bytes::from_static(b"PONG"));
}
请参阅doc