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|
use super::frame_output::*;
use super::image_files::FileTransport;
use crate::kitty_graphics::{GraphicsOperation, GraphicsOutput};
use std::sync::Arc;
fn output(format: u32) -> GraphicsOutput {
GraphicsOutput {
operations: vec![
GraphicsOperation::Bytes(b"before".to_vec()),
GraphicsOperation::Upload {
control: format!("a=t,t=d,f={format},s=1,v=1,i=42,q=2"),
data: Arc::from([1, 2, 3, 4]),
},
GraphicsOperation::Bytes(b"after".to_vec()),
],
}
}
#[test]
fn deferred_inline_output_matches_existing_frame_envelope() {
let graphics = output(32);
let encoded = b"\x1b[?2026htext\x1b[?2026l";
let mut expected = Vec::new();
write_encoded_frame_with_graphics(
&mut expected,
encoded,
&graphics.clone().into_inline_bytes(),
)
.unwrap();
let mut actual = Vec::new();
write_composed_frame(
&mut actual,
encoded,
&graphics,
&mut FileTransport::default(),
)
.unwrap();
assert_eq!(actual, expected);
}
#[test]
fn native_swap_cleanup_and_placements_share_the_frame_sync_envelope() {
let graphics = GraphicsOutput::from_bytes(
concat!(
"\x1b_Ga=d,d=I,i=41,q=2;\x1b\\",
"\x1b_Ga=p,i=42,p=1,q=2;\x1b\\",
"\x1b_Ga=p,i=42,p=2,q=2;\x1b\\",
)
.as_bytes()
.to_vec(),
);
let mut actual = Vec::new();
write_composed_frame(
&mut actual,
b"\x1b[?2026hframe\x1b[?2026l",
&graphics,
&mut FileTransport::default(),
)
.unwrap();
let text = std::str::from_utf8(&actual).unwrap();
let sync_begin = text.find("\x1b[?2026h").unwrap();
let sync_end = text.rfind("\x1b[?2026l").unwrap();
let deletion = text.find("a=d,d=I,i=41").unwrap();
let placements = text
.match_indices("a=p,i=42")
.map(|(at, _)| at)
.collect::<Vec<_>>();
assert!(deletion > sync_begin && deletion < sync_end);
assert!(placements.len() >= 2);
assert!(placements
.iter()
.all(|placement| *placement > sync_begin && *placement < sync_end));
}
#[test]
fn deferred_output_propagates_write_failure() {
struct Broken;
impl std::io::Write for Broken {
fn write(&mut self, _: &[u8]) -> std::io::Result<usize> {
Err(std::io::ErrorKind::BrokenPipe.into())
}
fn flush(&mut self) -> std::io::Result<()> {
Ok(())
}
}
assert_eq!(
write_composed_frame(Broken, b"text", &output(32), &mut FileTransport::default())
.unwrap_err()
.kind(),
std::io::ErrorKind::BrokenPipe
);
}
#[cfg(unix)]
mod local_files {
use super::*;
use base64::Engine as _;
use std::path::PathBuf;
struct Scratch(PathBuf);
impl Scratch {
fn new() -> Self {
static NEXT: std::sync::atomic::AtomicU64 = std::sync::atomic::AtomicU64::new(0);
let id = NEXT.fetch_add(1, std::sync::atomic::Ordering::Relaxed);
let path = PathBuf::from(format!(
"/var/tmp/herdr-output-test-{}-{id}",
std::process::id()
));
std::fs::create_dir(&path).unwrap();
Self(path)
}
}
impl Drop for Scratch {
fn drop(&mut self) {
let _ = std::fs::remove_dir_all(&self.0);
}
}
fn command_path(bytes: &[u8], header: &str) -> PathBuf {
let text = std::str::from_utf8(bytes).unwrap();
let command = text
.split("\x1b_G")
.find(|part| part.starts_with(header))
.unwrap();
let payload = command
.split_once(';')
.unwrap()
.1
.split("\x1b\\")
.next()
.unwrap();
PathBuf::from(
String::from_utf8(
base64::engine::general_purpose::STANDARD
.decode(payload)
.unwrap(),
)
.unwrap(),
)
}
#[test]
fn files_begin_only_after_probe_consumption_and_keep_order() {
for format in [24, 32, 100] {
let root = Scratch::new();
let mut files = FileTransport::for_test(root.0.clone());
let graphics = output(format);
let mut first = Vec::new();
write_composed_frame(&mut first, b"text", &graphics, &mut files).unwrap();
let first_text = std::str::from_utf8(&first).unwrap();
assert!(first_text.contains("a=q,t=t"));
assert!(first_text.contains("a=t,t=d"));
let probe = command_path(&first, "a=q,");
assert_eq!(std::fs::read(&probe).unwrap().len(), 4);
let mut waiting = Vec::new();
write_composed_frame(&mut waiting, b"text", &graphics, &mut files).unwrap();
assert!(!std::str::from_utf8(&waiting).unwrap().contains("a=q,"));
assert!(std::str::from_utf8(&waiting).unwrap().contains("a=t,t=d"));
std::fs::remove_file(&probe).unwrap();
let mut ready = Vec::new();
write_composed_frame(&mut ready, b"text", &graphics, &mut files).unwrap();
let text = std::str::from_utf8(&ready).unwrap();
assert!(text.contains(&format!("before\x1b_Ga=t,t=t,f={format}")));
assert!(text.contains("\x1b\\after"));
assert!(!text.contains("AQIDBA=="));
let image = command_path(&ready, "a=t,");
assert_eq!(std::fs::read(&image).unwrap(), [1, 2, 3, 4]);
drop(files);
assert!(!image.exists());
}
}
#[test]
fn unsupported_format_and_file_creation_failure_remain_inline() {
let root = Scratch::new();
let mut files = FileTransport::for_test(root.0.clone());
let mut unsupported = Vec::new();
write_composed_frame(&mut unsupported, b"", &output(999), &mut files).unwrap();
assert!(std::str::from_utf8(&unsupported)
.unwrap()
.contains("a=t,t=d,f=999"));
assert_eq!(std::fs::read_dir(&root.0).unwrap().count(), 0);
let mut broken = FileTransport::for_test(root.0.join("absent"));
let mut actual = Vec::new();
write_composed_frame(&mut actual, b"", &output(32), &mut broken).unwrap();
let mut expected = Vec::new();
write_composed_frame(
&mut expected,
b"",
&output(32),
&mut FileTransport::default(),
)
.unwrap();
assert_eq!(actual, expected);
}
}
|
