Files
vectorcraft/crates/engine/src/tests_linkspanel.rs
T
dotCooCoo df16d21e84 Images: the too-large note counts the image's pixels as RGBA
File › Open, File › Place and the Links panel note an image that needs
more than the decode allowance (2 GiB, 512 MiB in the web build). The
note counted the bytes the decoder gives, one a pixel for an 8-bit or
1-bit gray image, so a 1-bit gray PNG of 23,171 × 23,170 pixels (537 MB
as gray, 2,147,488,280 bytes as RGBA) got no note, although sampling,
recoloring and Load Texture refuse it for its RGBA size.

The note now counts width × height × 4, or the decoder's bytes when
they are more, against the allowance, with the size computed in 64
bits. Such an image gets the note an oversized RGBA image gets. Images
within the allowance get no note, as before.
2026-10-17 16:38:42 +07:00

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//! The Links panel's commands: listing images with their status (`links.list`), Go To, Embed and
//! Unembed, Link Info and the Placement Options a relinked file follows.
use serde_json::{Value, json};
use vectorcraft_doc::{NodeKind, PlacementOptions};
use super::tests_links::{BLUE, Folder, RED, bounds, centre_colour, image, near, open, place, png, save, session, write};
use super::*;
fn run(s: &mut Session, id: &str, p: Value) -> Value {
s.execute(id, &p).unwrap_or_else(|e| panic!("{id} {p}: {e}"))
}
/// Place the file at `path` embedded → its id.
fn place_embedded(s: &mut Session, path: &str) -> NodeId {
let r = run(s, "file.place", json!({"path": path, "at": [200, 150], "link": false}));
NodeId(r["ids"][0].as_u64().unwrap())
}
/// A PNG that says it is `w` × `h` 1-bit grey pixels (its header and no rows, which is all that
/// placing and listing read).
pub(crate) fn png_header(w: u32, h: u32) -> Vec<u8> {
let mut out = b"\x89PNG\r\n\x1a\n".to_vec();
let ihdr: Vec<u8> = [&b"IHDR"[..], &w.to_be_bytes(), &h.to_be_bytes(), &[1, 0, 0, 0, 0]].concat();
for chunk in [&ihdr[..], b"IDAT\x78\x9c", b"IEND"] {
out.extend((chunk.len() as u32 - 4).to_be_bytes());
out.extend(chunk);
out.extend(crc32fast::hash(chunk).to_be_bytes());
}
out
}
/// An image past what a decode may take isn't drawn: Place and Open say so and the Links panel's
/// row carries the note, where the image used to be blank with no word (#1479).
#[test]
fn an_image_too_large_to_draw_is_reported() {
const NOTE: &str = "an image of 200000 × 200000 pixels is too large to draw";
let dir = Folder::new("huge");
let (big, small) = (dir.file("wall.png"), dir.file("small.png"));
write(&big, &png_header(200_000, 200_000));
write(&small, &png(40, 20, BLUE));
let mut s = session();
assert_eq!(run(&mut s, "file.place", json!({"path": big, "at": [200, 150], "link": false}))["warnings"], json!([NOTE]));
assert_eq!(run(&mut s, "file.place", json!({"path": small, "at": [20, 20], "link": false}))["warnings"], json!([]));
let l = run(&mut s, "links.list", json!({}));
let notes: Vec<&Value> = l["links"].as_array().unwrap().iter().map(|r| &r["note"]).collect();
assert_eq!(notes, [&Value::Null, &json!(NOTE)], "top first: the small image has nothing to say");
// Opened as a document: said too. An image that decodes (16,000 px square) has no note.
assert_eq!(crate::cmd::fileio::load("wall.png", &png_header(200_000, 200_000)).unwrap().warnings, [NOTE]);
assert!(crate::cmd::fileio::load("fine.png", &png_header(16_000, 16_000)).unwrap().warnings.is_empty());
}
/// A gray image is counted as RGBA, 4 bytes a pixel: 23,171 × 23,170 1-bit pixels decode to 537 MB
/// of gray and are 2,147,488,280 bytes as RGBA, past the 2 GiB allowance; 23,170 × 23,170 are
/// 2,147,395,600 bytes, within it.
#[test]
fn a_gray_image_too_large_as_rgba_is_reported_on_place() {
const NOTE: &str = "an image of 23171 × 23170 pixels is too large to draw";
let dir = Folder::new("huge-gray-place");
let (over, within) = (dir.file("over.png"), dir.file("within.png"));
write(&over, &png_header(23_171, 23_170));
write(&within, &png_header(23_170, 23_170));
let mut s = session();
assert_eq!(run(&mut s, "file.place", json!({"path": over, "at": [200, 150], "link": false}))["warnings"], json!([NOTE]));
assert_eq!(run(&mut s, "file.place", json!({"path": within, "at": [20, 20], "link": false}))["warnings"], json!([]));
let l = run(&mut s, "links.list", json!({}));
let notes: Vec<&Value> = l["links"].as_array().unwrap().iter().map(|r| &r["note"]).collect();
assert_eq!(notes, [&Value::Null, &json!(NOTE)], "top first: the image within the allowance has nothing to say");
}
/// File › Open says the same of a gray image past the allowance as RGBA, and nothing of one within it.
#[test]
fn a_gray_image_too_large_as_rgba_is_reported_on_open() {
let dir = Folder::new("huge-gray-open");
let (over, within) = (dir.file("over.png"), dir.file("within.png"));
write(&over, &png_header(23_171, 23_170));
write(&within, &png_header(23_170, 23_170));
let mut s = session();
assert_eq!(open(&mut s, &over)["warnings"], json!(["an image of 23171 × 23170 pixels is too large to draw"]));
assert_eq!(open(&mut s, &within)["warnings"], json!([]));
}
fn close(a: f64, b: f64) -> bool {
(a - b).abs() < 1e-6
}
#[test]
fn embed_keeps_the_pixels_without_the_file() {
let dir = Folder::new("embed");
let pic = dir.file("photo.png");
let bytes = png(600, 300, RED);
write(&pic, &bytes);
let mut s = session();
let id = place(&mut s, &pic);
let placed = bounds(&s, id);
run(&mut s, "select.set", json!({"ids": []}));
assert!(s.execute("links.embed", &json!({})).is_err(), "nothing selected");
run(&mut s, "select.set", json!({"ids": [id.0]}));
assert_eq!(run(&mut s, "links.embed", json!({})), json!({"embedded": [id.0], "missing": []}));
let im = image(&s, id);
assert!(im.link.is_none());
assert_eq!(s.doc().unwrap().doc.images[&im.key].bytes.as_slice(), bytes.as_slice(), "the file's own bytes");
assert_eq!(bounds(&s, id), placed);
run(&mut s, "edit.undo", json!({}));
assert!(image(&s, id).link.is_some(), "one undo step");
run(&mut s, "edit.redo", json!({}));
// Saved and reopened without the file: the full pixels, nothing missing.
let doc_path = dir.file("poster.vectorcraft");
save(&mut s, &doc_path);
std::fs::remove_file(&pic).unwrap();
let r = open(&mut s, &doc_path);
assert_eq!(r["missingLinks"], json!([]), "{r}");
let im = image(&s, id);
assert!(!s.doc().unwrap().doc.images[&im.key].is_proxy());
assert!(near(centre_colour(&s.doc().unwrap().doc), RED));
}
#[test]
fn a_missing_file_showing_its_preview_stays_linked() {
let dir = Folder::new("embed-missing");
let pic = dir.file("photo.png");
write(&pic, &png(600, 300, RED));
let mut s = session();
let id = place(&mut s, &pic);
let doc_path = dir.file("poster.vectorcraft");
save(&mut s, &doc_path);
std::fs::remove_file(&pic).unwrap();
open(&mut s, &doc_path);
assert_eq!(run(&mut s, "links.embed", json!({"ids": [id.0]})), json!({"embedded": [], "missing": [id.0]}));
assert!(image(&s, id).link.is_some());
assert!(s.doc().unwrap().history.undo.is_empty(), "nothing changed");
}
#[test]
fn unembed_writes_the_bytes_and_links_to_them() {
let dir = Folder::new("unembed");
let pic = dir.file("photo.png");
let bytes = png(600, 300, RED);
write(&pic, &bytes);
let mut s = session();
let id = place_embedded(&mut s, &pic);
let placed = bounds(&s, id);
// No path: the file's bytes come back and nothing changes.
let r = run(&mut s, "links.unembed", json!({"id": id.0}));
assert_eq!(r["name"], "photo.png");
assert_eq!(vectorcraft_format::base64_decode(r["dataBase64"].as_str().unwrap()).unwrap(), bytes);
assert!(image(&s, id).link.is_none());
// To a path: written there, and the image links to it.
let out = dir.file("out/photo.png");
std::fs::create_dir_all(dir.file("out")).unwrap();
let r = run(&mut s, "links.unembed", json!({"id": id.0, "path": out}));
assert_eq!(r, json!({"id": id.0, "path": out}));
assert_eq!(std::fs::read(&out).unwrap(), bytes);
let link = image(&s, id).link.unwrap();
assert_eq!((link.path.as_str(), link.size), (out.as_str(), Some(bytes.len() as u64)));
assert_eq!(bounds(&s, id), placed);
assert_eq!(run(&mut s, "links.check", json!({}))["links"][0]["status"], "ok");
assert!(s.execute("links.unembed", &json!({"id": id.0, "path": out})).is_err(), "linked already");
run(&mut s, "edit.undo", json!({}));
assert!(image(&s, id).link.is_none(), "one undo step");
// Another extension converts.
let jpg = dir.file("photo.jpg");
run(&mut s, "links.unembed", json!({"id": id.0, "path": jpg}));
assert_eq!(std::fs::read(&jpg).unwrap()[..2], [0xff, 0xd8]);
assert!(near(centre_colour(&s.doc().unwrap().doc), RED));
run(&mut s, "edit.undo", json!({}));
assert!(s.execute("links.unembed", &json!({"id": id.0, "path": dir.file("photo.psd")})).is_err(), "not a format it writes");
}
#[test]
fn go_to_selects_the_image() {
let dir = Folder::new("goto");
let pic = dir.file("photo.png");
write(&pic, &png(600, 300, RED));
let mut s = session();
let id = place(&mut s, &pic);
run(&mut s, "shape.rectangle", json!({"x": 0, "y": 0, "width": 10, "height": 10}));
assert_ne!(s.doc().unwrap().selection.objects, vec![id]);
let r = run(&mut s, "links.goTo", json!({"id": id.0}));
assert_eq!(r, json!({"id": id.0, "bounds": [-100.0, 0.0, 500.0, 300.0]}));
assert_eq!(s.doc().unwrap().selection.objects, vec![id]);
let rect = s.doc().unwrap().doc.layers[0].children().unwrap()[1].id;
assert!(s.execute("links.goTo", &json!({"id": rect.0})).is_err(), "not an image");
}
#[test]
fn the_list_shows_each_image_with_its_status() {
let dir = Folder::new("list");
let (a, b) = (dir.file("a.png"), dir.file("b.png"));
write(&a, &png(600, 300, RED));
write(&b, &png(40, 20, BLUE));
let mut s = session();
let linked = place(&mut s, &a);
let embedded = place_embedded(&mut s, &b);
let l = run(&mut s, "links.list", json!({}));
let rows = l["links"].as_array().unwrap();
assert_eq!(rows.len(), 2);
// Top first.
assert_eq!((rows[0]["id"].as_u64(), rows[0]["status"].as_str(), rows[0]["name"].as_str()), (Some(embedded.0), Some("embedded"), Some("b.png")));
assert_eq!(
(rows[1]["id"].as_u64(), rows[1]["status"].as_str(), rows[1]["path"].as_str(), rows[1]["format"].as_str()),
(Some(linked.0), Some("ok"), Some(a.as_str()), Some("PNG"))
);
assert_eq!((rows[1]["pixelWidth"].as_u64(), rows[1]["pixelHeight"].as_u64()), (Some(600), Some(300)));
write(&a, &png(300, 300, BLUE));
let l = run(&mut s, "links.list", json!({"sort": "status"}));
assert_eq!((l["modified"].as_u64(), l["embedded"].as_u64(), l["missing"].as_u64()), (Some(1), Some(1), Some(0)));
assert_eq!(l["links"][0]["status"], "modified", "modified before embedded");
let l = run(&mut s, "links.list", json!({"show": "embedded"}));
assert_eq!(l["links"].as_array().unwrap().len(), 1);
std::fs::remove_file(&a).unwrap();
assert_eq!(run(&mut s, "links.list", json!({"show": "missing"}))["links"][0]["id"], linked.0);
assert_eq!(run(&mut s, "links.list", json!({"sort": "name"}))["links"][0]["name"], "a.png");
assert!(s.execute("links.list", &json!({"show": "broken"})).is_err());
assert!(s.execute("links.list", &json!({"sort": "size"})).is_err());
}
#[test]
fn link_info_has_the_file_and_placement_details() {
let dir = Folder::new("info");
let pic = dir.file("photo.png");
let bytes = png(600, 300, RED);
write(&pic, &bytes);
let mut s = session();
let id = place(&mut s, &pic);
let i = run(&mut s, "links.info", json!({"id": id.0}));
assert_eq!((i["status"].as_str(), i["fileName"].as_str(), i["format"].as_str()), (Some("ok"), Some("photo.png"), Some("PNG")));
assert_eq!(std::path::Path::new(i["location"].as_str().unwrap()), dir.0.as_path());
assert_eq!((i["fileSize"].as_u64(), i["pixelWidth"].as_u64(), i["colorMode"].as_str()), (Some(bytes.len() as u64), Some(600), Some("RGB")));
assert_eq!((i["ppi"].clone(), i["effectivePpi"].clone(), i["scale"].clone()), (json!([72.0, 72.0]), json!([72.0, 72.0]), json!([100.0, 100.0])));
assert!(i["modified"].as_u64().is_some());
assert_eq!(i["placement"], json!({"preserve": "bounds", "align": "center", "clip": false}));
run(&mut s, "select.set", json!({"ids": [id.0]}));
run(&mut s, "object.scale", json!({"sx": 50}));
run(&mut s, "object.rotate", json!({"angle": 30}));
let i = run(&mut s, "links.info", json!({}));
let num = |v: &Value, k: usize| v.get(k).and_then(Value::as_f64).unwrap();
assert!(close(num(&i["scale"], 0), 50.0) && close(num(&i["effectivePpi"], 0), 144.0), "{i}");
assert!(close(i["rotation"].as_f64().unwrap(), 30.0), "counter-clockwise: {i}");
let embedded = place_embedded(&mut s, &pic);
let i = run(&mut s, "links.info", json!({"id": embedded.0}));
assert_eq!((i["status"].as_str(), i["linked"].as_bool(), i["fileName"].as_str()), (Some("embedded"), Some(false), None));
}
/// A 600×300 pt image at the centre of the artboard, its placement options set to `options`,
/// relinked to a 300×100 px file → the image's id and session.
fn relinked(name: &str, options: Value) -> (Session, NodeId, Folder) {
let dir = Folder::new(name);
let (pic, other) = (dir.file("photo.png"), dir.file("blue.png"));
write(&pic, &png(600, 300, RED));
write(&other, &png(300, 100, BLUE));
let mut s = session();
let id = place(&mut s, &pic);
let mut p = options;
p["ids"] = json!([id.0]);
run(&mut s, "links.placementOptions", p);
run(&mut s, "links.relink", json!({"ids": [id.0], "path": other}));
(s, id, dir)
}
#[test]
fn a_relinked_file_follows_the_placement_options() {
let b = |s: &Session, id| {
let r = bounds(s, id);
[r.x0, r.y0, r.x1, r.y1].map(|v| (v * 1e6).round() / 1e6)
};
// The old bounds: -100, 0, 500, 300.
let (s, id, _d) = relinked("pl-bounds", json!({"preserve": "bounds"}));
assert_eq!(b(&s, id), [-100.0, 0.0, 500.0, 300.0], "stretched into the bounds");
let (s, id, _d) = relinked("pl-fit", json!({"preserve": "fit"}));
assert_eq!(b(&s, id), [-100.0, 50.0, 500.0, 250.0], "proportional, centred");
let (s, id, _d) = relinked("pl-transforms", json!({"preserve": "transforms"}));
assert_eq!(b(&s, id), [50.0, 100.0, 350.0, 200.0], "at the same 100%");
let (s, id, _d) = relinked("pl-file", json!({"preserve": "fileDimensions", "align": "topLeft"}));
assert_eq!(b(&s, id), [-100.0, 0.0, 200.0, 100.0]);
let (mut s, id, d) = relinked("pl-fill", json!({"preserve": "fill", "align": "left", "clip": true}));
assert_eq!(b(&s, id), [-100.0, 0.0, 800.0, 300.0], "covers the bounds");
let clip_group = |s: &Session| {
let doc = &s.doc().unwrap().doc;
let g = doc.node(doc.parent_of(id).unwrap()).unwrap();
let NodeKind::Group { children, clip: true } = &g.kind else { panic!("not clipped: {g:?}") };
(g.id, children[0].geometric_bounds().unwrap())
};
let (group, clip) = clip_group(&s);
assert_eq!(clip, vectorcraft_geom::Rect::new(-100.0, 0.0, 500.0, 300.0), "clipped to the old bounds");
// Relinked again: the same clip group, its path following.
run(&mut s, "links.relink", json!({"ids": [id.0], "path": d.file("photo.png")}));
assert_eq!(clip_group(&s).0, group);
run(&mut s, "edit.undo", json!({}));
run(&mut s, "edit.undo", json!({}));
assert!(
matches!(s.doc().unwrap().doc.node(s.doc().unwrap().doc.parent_of(id).unwrap()).unwrap().kind, NodeKind::Layer { .. }),
"one undo step each"
);
}
#[test]
fn placement_options_read_set_and_round_trip() {
let dir = Folder::new("placement");
let pic = dir.file("photo.png");
write(&pic, &png(600, 300, RED));
let mut s = session();
let id = place(&mut s, &pic);
run(&mut s, "select.set", json!({"ids": [id.0]}));
assert_eq!(run(&mut s, "links.placementOptions", json!({})), json!({"placement": {"preserve": "bounds", "align": "center", "clip": false}}));
let r = run(&mut s, "links.placementOptions", json!({"preserve": "fill", "align": "topRight", "clip": true}));
assert_eq!(r, json!({"ids": [id.0], "placement": {"preserve": "fill", "align": "topRight", "clip": true}}));
assert!(s.execute("links.placementOptions", &json!({"preserve": "stretch"})).is_err());
assert!(s.execute("links.placementOptions", &json!({"align": "middle"})).is_err());
// Saved and opened again.
let doc_path = dir.file("poster.vectorcraft");
save(&mut s, &doc_path);
let saved: Value = serde_json::from_slice(&std::fs::read(&doc_path).unwrap()).unwrap();
assert_eq!(
saved["document"]["layers"][0]["kind"]["children"][0]["kind"]["placement"],
json!({"preserve": "fill", "align": "topRight", "clip": true})
);
open(&mut s, &doc_path);
let want = PlacementOptions { preserve: vectorcraft_doc::links::Preserve::Fill, align: vectorcraft_doc::links::Align::TopRight, clip: true };
assert_eq!(image(&s, id).placement, want);
run(&mut s, "select.all", json!({}));
run(&mut s, "links.placementOptions", json!({"preserve": "bounds", "align": "center", "clip": false}));
save(&mut s, &doc_path);
let saved: Value = serde_json::from_slice(&std::fs::read(&doc_path).unwrap()).unwrap();
assert_eq!(saved["document"]["layers"][0]["kind"]["children"][0]["kind"]["placement"], Value::Null, "the default isn't written");
}
#[test]
fn the_links_commands_are_reachable_headless() {
for id in [
"links.list",
"links.goTo",
"links.embed",
"links.unembed",
"links.info",
"links.placementOptions",
"links.relink",
"links.update",
"links.check",
] {
let c = crate::find_command(id).unwrap_or_else(|| panic!("{id} is not a command"));
assert!(!c.params.is_empty(), "{id} documents its params");
}
// Without a document every one says why instead of failing silently.
let mut s = Session::new();
assert!(s.execute("links.list", &json!({})).is_err());
}