oxedyne/fe2o3 — fe2o3_net/tests/bodiless

oxedyne/fe2o3/fe2o3_net/tests/bodiless_status.rs

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created by r1870400018:59921, which is this file's identity for as long as the history lasts, whatever it is later renamed to

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1	#![cfg(feature = "async")]
2	//! A response whose status carries no body must not be framed as though it had one.
3	//!
4	//! RFC 9110 §8.6 forbids `Content-Length` on a `1xx` or `204`, and on a `304` the field would
5	//! have to state the size of the representation not sent. The writer used to add
6	//! `Content-Length: 0` to every message it sent, so a `204` for an empty map tile went out
7	//! carrying a field the specification forbids.
8	//!
9	//! [Written with AI entirely](https://need2know.ai/entirely-ai/code)\
10	//! Anthropic Claude
11
12	use oxedyne_fe2o3_core::prelude::*;
13	use oxedyne_fe2o3_net::http::{
14	msg::HttpMessage,
15	status::HttpStatus,
16	};
17
18
19	async fn wire(msg: HttpMessage) -> Outcome<String> {
20	let mut out: Vec<u8> = Vec::new();
21	res!(msg.write_all(&mut out).await);
22	Ok(String::from_utf8_lossy(&out).to_lowercase())
23	}
24
25	#[tokio::test]
26	async fn no_content_length_on_bodiless_statuses() -> Outcome<()> {
27	for status in [HttpStatus::NoContent, HttpStatus::NotModified, HttpStatus::EarlyHints] {
28	let head = res!(wire(HttpMessage::new_response(status)).await);
29	assert!(!head.contains("content-length"),
30	"a {} response carried a Content-Length:\n{}", status as u16, head);
31	}
32	Ok(())
33	}
34
35	#[tokio::test]
36	async fn content_length_still_frames_other_statuses() -> Outcome<()> {
37	let head = res!(wire(HttpMessage::new_response(HttpStatus::OK)).await);
38	assert!(head.contains("content-length: 0\r\n"),
39	"an empty 200 lost its Content-Length:\n{}", head);
40	let head = res!(wire(HttpMessage::respond_with_text(HttpStatus::NotFound, "gone")).await);
41	assert!(head.contains("content-length: 4\r\n"),
42	"a 404 with a body lost its Content-Length:\n{}", head);
43	Ok(())
44	}