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vectorcraft/crates/engine/src/tests_links.rs
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//! Linked images: what a link records, the preview saved in place of the pixels, finding files
//! that moved, missing and modified files (`document.open`, `links.check`, `links.update`,
//! `links.relink`).
use std::path::{Path, PathBuf};
use serde_json::{Value, json};
use vectorcraft_doc::{Document, ImageObject, LinkInfo, NodeKind};
use vectorcraft_geom::Rect;
use super::*;
/// A fresh folder for one test (removed when dropped).
pub(crate) struct Folder(pub(crate) PathBuf);
impl Folder {
pub(crate) fn new(name: &str) -> Self {
let dir = std::env::temp_dir().join(format!("vectorcraft-links-{name}-{}", std::process::id()));
let _ = std::fs::remove_dir_all(&dir);
std::fs::create_dir_all(&dir).unwrap();
Self(dir)
}
pub(crate) fn file(&self, name: &str) -> String {
self.0.join(name).to_string_lossy().into_owned()
}
}
impl Drop for Folder {
fn drop(&mut self) {
let _ = std::fs::remove_dir_all(&self.0);
}
}
/// A `w`×`h` PNG of one colour.
pub(crate) fn png(w: u32, h: u32, rgb: [u8; 3]) -> Vec<u8> {
let mut out = vec![];
let [r, g, b] = rgb;
image::RgbaImage::from_pixel(w, h, image::Rgba([r, g, b, 255])).write_to(&mut std::io::Cursor::new(&mut out), image::ImageFormat::Png).unwrap();
out
}
pub(crate) const RED: [u8; 3] = [230, 20, 20];
pub(crate) const BLUE: [u8; 3] = [20, 20, 230];
pub(crate) fn write(path: &str, bytes: &[u8]) {
if let Some(dir) = Path::new(path).parent() {
std::fs::create_dir_all(dir).unwrap();
}
std::fs::write(path, bytes).unwrap();
}
pub(crate) fn session() -> Session {
let mut s = Session::new();
s.execute("file.new", &json!({"width": 400, "height": 300})).unwrap();
s
}
/// Place the file at `path` (linked) → its id.
pub(crate) fn place(s: &mut Session, path: &str) -> NodeId {
let r = s.execute("file.place", &json!({"path": path, "at": [200, 150]})).unwrap();
assert_eq!(r["linked"], true, "{r}");
NodeId(r["ids"][0].as_u64().unwrap())
}
pub(crate) fn image(s: &Session, id: NodeId) -> ImageObject {
match &s.doc().unwrap().doc.node(id).unwrap().kind {
NodeKind::Image(im) => (**im).clone(),
k => panic!("not an image: {k:?}"),
}
}
pub(crate) fn bounds(s: &Session, id: NodeId) -> Rect {
s.doc().unwrap().doc.node(id).unwrap().geometric_bounds().unwrap()
}
/// The colour at the centre of the active document's artboard.
pub(crate) fn centre_colour(doc: &Document) -> [u8; 3] {
let img = vectorcraft_render::Renderer::new().render_region(doc, Rect::new(0.0, 0.0, 400.0, 300.0), 1.0, true);
let [r, g, b, _] = img.pixel(200, 150);
[r, g, b]
}
pub(crate) fn near(a: [u8; 3], b: [u8; 3]) -> bool {
a.iter().zip(b).all(|(x, y)| x.abs_diff(y) <= 6)
}
/// The first image object's JSON in a saved document.
fn saved_image(v: &mut Value) -> &mut Value {
&mut v["document"]["layers"][0]["kind"]["children"][0]["kind"]
}
pub(crate) fn save(s: &mut Session, path: &str) {
s.execute("document.save", &json!({"path": path})).unwrap();
}
pub(crate) fn open(s: &mut Session, path: &str) -> Value {
s.execute("document.open", &json!({"path": path})).unwrap()
}
#[test]
fn a_placed_link_records_the_file_and_the_document_saves_only_a_preview() {
let dir = Folder::new("record");
let pic = dir.file("art/photo.png");
let bytes = png(600, 300, RED);
write(&pic, &bytes);
let mut s = session();
let id = place(&mut s, &pic);
let im = image(&s, id);
let link = im.link.clone().unwrap();
assert_eq!((link.path.as_str(), link.size), (pic.as_str(), Some(bytes.len() as u64)));
assert_eq!(link.hash.as_deref(), Some(vectorcraft_doc::links::hash_bytes(&bytes).as_str()));
assert!(link.modified.is_some_and(|m| m > 1_600_000_000_000), "{link:?}");
let blob = &s.doc().unwrap().doc.images[&im.key];
assert!(blob.proxy.is_some() && !blob.is_proxy(), "full pixels, with a preview to save");
let doc_path = dir.file("poster.vectorcraft");
save(&mut s, &doc_path);
let mut saved: Value = serde_json::from_slice(&std::fs::read(&doc_path).unwrap()).unwrap();
let entry = &saved["images"][&im.key];
assert_eq!(entry["proxy"], true);
assert!(entry["data"].as_str().unwrap().len() * 3 / 4 < bytes.len(), "the preview is smaller than the file");
let saved_link = saved_image(&mut saved)["link"].clone();
assert_eq!((saved_link["path"].as_str(), saved_link["relative"].as_str()), (Some(pic.as_str()), Some("art/photo.png")));
// Embedding keeps the pixels, and no preview is saved for them.
s.execute("file.place", &json!({"path": pic, "link": false})).unwrap();
save(&mut s, &doc_path);
let saved: Value = serde_json::from_slice(&std::fs::read(&doc_path).unwrap()).unwrap();
assert_eq!(saved["images"][&im.key]["proxy"], Value::Null, "an embedded image shows it too");
}
/// A flat `w`×`h` Photoshop document of one colour (raw RGB, no layers).
fn psd(w: u32, h: u32, rgb: [u8; 3]) -> Vec<u8> {
let mut f = b"8BPS\0\x01\0\0\0\0\0\0\0\x03".to_vec();
f.extend(h.to_be_bytes());
f.extend(w.to_be_bytes());
f.extend([0, 8, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]);
for v in rgb {
f.extend(std::iter::repeat_n(v, (w * h) as usize));
}
f
}
/// #918: a Photoshop document placed linked shows its merged image, and updates when it changes.
#[test]
fn a_linked_photoshop_document_places_and_updates() {
let dir = Folder::new("psd");
let pic = dir.file("art/photo.psd");
write(&pic, &psd(600, 300, RED));
let mut s = session();
let id = place(&mut s, &pic);
let link = image(&s, id).link.unwrap();
assert_eq!(link.path, pic);
assert!(near(centre_colour(&s.doc().unwrap().doc), RED));
write(&pic, &psd(400, 400, BLUE));
assert_eq!(s.execute("links.update", &json!({})).unwrap(), json!({"updated": [id.0], "missing": []}));
let im = image(&s, id);
assert_eq!((im.width, im.height), (400, 400));
assert!(near(centre_colour(&s.doc().unwrap().doc), BLUE));
}
/// An uncompressed 24-bit `w`×`h` Targa file of one color.
fn targa(w: u16, h: u16, rgb: [u8; 3]) -> Vec<u8> {
let mut f = vec![0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0];
f.extend(w.to_le_bytes());
f.extend(h.to_le_bytes());
f.extend([24, 0]);
let [r, g, b] = rgb;
f.extend(std::iter::repeat_n([b, g, r], usize::from(w) * usize::from(h)).flatten());
f
}
/// A Targa file placed linked shows its pixels and updates when it changes, and a link can be
/// relinked to one.
#[test]
fn a_linked_targa_file_places_updates_and_relinks() {
let dir = Folder::new("tga");
let pic = dir.file("art/photo.tga");
write(&pic, &targa(600, 300, RED));
let mut s = session();
let id = place(&mut s, &pic);
assert_eq!(image(&s, id).link.unwrap().path, pic);
assert!(near(centre_colour(&s.doc().unwrap().doc), RED));
write(&pic, &targa(400, 400, BLUE));
assert_eq!(s.execute("links.update", &json!({})).unwrap(), json!({"updated": [id.0], "missing": []}));
let im = image(&s, id);
assert_eq!((im.width, im.height), (400, 400));
assert!(near(centre_colour(&s.doc().unwrap().doc), BLUE));
let other = dir.file("other/red.vst");
write(&other, &targa(300, 100, RED));
let r = s.execute("links.relink", &json!({"ids": [id.0], "path": other})).unwrap();
assert_eq!(r, json!({"relinked": [id.0], "notFound": []}));
let im = image(&s, id);
assert_eq!((im.width, im.height, im.link.unwrap().path), (300, 100, other));
assert!(near(centre_colour(&s.doc().unwrap().doc), RED));
}
#[test]
fn the_relative_path_finds_the_file_after_the_folder_moves() {
let a = Folder::new("move-a");
let b = Folder::new("move-b");
let pic = a.file("art/photo.png");
write(&pic, &png(600, 300, RED));
let mut s = session();
let id = place(&mut s, &pic);
save(&mut s, &a.file("poster.vectorcraft"));
// Move the document with its links: the old folder is gone.
std::fs::remove_dir_all(&b.0).unwrap();
std::fs::rename(&a.0, &b.0).unwrap();
let r = open(&mut s, &b.file("poster.vectorcraft"));
assert_eq!((r["missingLinks"].clone(), r["modifiedLinks"].clone()), (json!([]), json!([])), "{r}");
let moved = b.file("art/photo.png");
let im = image(&s, id);
assert_eq!(Path::new(&im.link.unwrap().path), Path::new(&moved), "the link follows the file");
assert!(!s.doc().unwrap().doc.images[&im.key].is_proxy(), "the file's pixels were read");
let c = s.execute("links.check", &json!({})).unwrap();
assert_eq!((c["links"][0]["status"].as_str(), c["missing"].as_u64()), (Some("ok"), Some(0)), "{c}");
assert!(near(centre_colour(&s.doc().unwrap().doc), RED));
}
#[test]
fn a_missing_link_renders_its_preview_and_relinks() {
let dir = Folder::new("missing");
let pic = dir.file("photo.png");
write(&pic, &png(600, 300, RED));
let mut s = session();
let id = place(&mut s, &pic);
let placed = bounds(&s, id);
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!([{"name": "photo.png", "path": pic, "ids": [id.0]}]));
let doc = &s.doc().unwrap().doc;
assert!(doc.images[&image(&s, id).key].is_proxy(), "the preview stands in");
assert!(near(centre_colour(doc), RED), "missing still renders");
let c = s.execute("links.check", &json!({})).unwrap();
assert_eq!((c["links"][0]["status"].as_str(), c["links"][0]["preview"].as_bool(), c["missing"].as_u64()), (Some("missing"), Some(true), Some(1)));
assert_eq!(s.execute("links.update", &json!({})).unwrap(), json!({"updated": [], "missing": [id.0]}));
// Replace: another file, smaller; the image keeps its bounds.
let other = dir.file("other/blue.png");
write(&other, &png(300, 100, BLUE));
let r = s.execute("links.relink", &json!({"ids": [id.0], "path": other})).unwrap();
assert_eq!(r, json!({"relinked": [id.0], "notFound": []}));
let im = image(&s, id);
assert_eq!((im.width, im.height, im.link.unwrap().path), (300, 100, other.clone()));
let b = bounds(&s, id);
assert!((b.x0 - placed.x0).abs() < 1e-6 && (b.y1 - placed.y1).abs() < 1e-6, "{b:?} vs {placed:?}");
assert!(near(centre_colour(&s.doc().unwrap().doc), BLUE));
s.execute("edit.undo", &json!({})).unwrap();
assert!(near(centre_colour(&s.doc().unwrap().doc), RED), "one undo step");
// Relink to Folder: the file of the link's name there.
write(&dir.file("found/photo.png"), &png(600, 300, BLUE));
let r = s.execute("links.relink", &json!({"folder": dir.file("found")})).unwrap();
assert_eq!(r, json!({"relinked": [id.0], "notFound": []}), "nothing selected: every missing link");
assert!(near(centre_colour(&s.doc().unwrap().doc), BLUE));
assert!(s.execute("links.relink", &json!({"ids": [id.0]})).is_err(), "path or folder");
}
#[test]
fn a_modified_link_follows_the_update_links_preference() {
let dir = Folder::new("modified");
let pic = dir.file("photo.png");
write(&pic, &png(600, 300, RED));
let mut s = session();
let id = place(&mut s, &pic);
let placed = bounds(&s, id);
let doc_path = dir.file("poster.vectorcraft");
save(&mut s, &doc_path);
write(&pic, &png(400, 400, BLUE));
let c = s.execute("links.check", &json!({})).unwrap();
assert_eq!((c["links"][0]["status"].as_str(), c["modified"].as_u64()), (Some("modified"), Some(1)), "{c}");
// Ask When Modified (the default): reported, left as it was.
let r = open(&mut s, &doc_path);
assert_eq!((r["modifiedLinks"][0]["ids"].clone(), r["updatedLinks"].clone()), (json!([id.0]), json!([])), "{r}");
assert!(near(centre_colour(&s.doc().unwrap().doc), RED), "the preview until updated");
let r = s.execute("links.update", &json!({})).unwrap();
assert_eq!(r, json!({"updated": [id.0], "missing": []}));
let im = image(&s, id);
assert_eq!((im.width, im.height), (400, 400));
let b = bounds(&s, id);
assert!((b.width() - placed.width()).abs() < 1e-6 && (b.height() - placed.height()).abs() < 1e-6, "keeps its bounds: {b:?}");
assert!(near(centre_colour(&s.doc().unwrap().doc), BLUE));
assert_eq!(s.doc().unwrap().history.undo.last().unwrap().label, "Update Links");
let c = s.execute("links.check", &json!({})).unwrap();
assert_eq!(c["links"][0]["status"], "ok");
assert_eq!(s.execute("links.update", &json!({})).unwrap()["updated"], json!([]), "nothing left to update");
// Automatically: read again as the document opens.
s.execute("prefs.set", &json!({"key": "updateLinks", "value": "automatically"})).unwrap();
let r = open(&mut s, &doc_path);
assert_eq!((r["modifiedLinks"].clone(), r["updatedLinks"][0]["ids"].clone()), (json!([]), json!([id.0])), "{r}");
assert!(near(centre_colour(&s.doc().unwrap().doc), BLUE));
assert!(s.doc().unwrap().history.undo.is_empty(), "opening is not an undo step");
}
/// Preferences › File Handling › Use Low Resolution Proxy for Linked EPS (#394): an unchanged linked
/// `.eps` keeps its saved preview on open; Update Links still reads a modified file when set to
/// Automatically.
#[test]
fn low_res_proxy_eps_keeps_unchanged_preview_and_automatic_update_reads_modified_eps() {
let dir = Folder::new("eps-proxy");
let pic = dir.file("photo.eps");
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);
s.execute("prefs.set", &json!({"key": "lowResProxyEps", "value": true})).unwrap();
s.execute("prefs.set", &json!({"key": "updateLinks", "value": "askWhenModified"})).unwrap();
let r = open(&mut s, &doc_path);
assert_eq!((r["modifiedLinks"].clone(), r["updatedLinks"].clone()), (json!([]), json!([])), "{r}");
assert!(near(centre_colour(&s.doc().unwrap().doc), RED), "unchanged EPS stays on its preview");
assert!(s.doc().unwrap().doc.images[&image(&s, id).key].is_proxy());
write(&pic, &png(400, 400, BLUE));
s.execute("prefs.set", &json!({"key": "updateLinks", "value": "automatically"})).unwrap();
let r = open(&mut s, &doc_path);
assert_eq!(r["updatedLinks"][0]["ids"].clone(), json!([id.0]), "modified EPS updates on open: {r}");
assert!(!s.doc().unwrap().doc.images[&image(&s, id).key].is_proxy());
assert!(near(centre_colour(&s.doc().unwrap().doc), BLUE));
}
/// With Low Resolution Proxy on, export reads the linked EPS file's full pixels, not the preview.
#[test]
fn low_res_proxy_eps_export_uses_full_resolution_from_the_linked_file() {
let dir = Folder::new("eps-proxy-export");
let pic = dir.file("photo.eps");
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);
s.execute("prefs.set", &json!({"key": "lowResProxyEps", "value": true})).unwrap();
let r = open(&mut s, &doc_path);
assert_eq!((r["modifiedLinks"].clone(), r["updatedLinks"].clone()), (json!([]), json!([])), "{r}");
let key = image(&s, id).key;
assert!(s.doc().unwrap().doc.images[&key].is_proxy());
let (full, warnings) = cmd::links::full_linked_images(&s.doc().unwrap().doc, None);
assert!(warnings.is_empty(), "{warnings:?}");
assert!(!full.images[&key].is_proxy());
let dim =
image::ImageReader::new(std::io::Cursor::new(full.images[&key].bytes.as_ref())).with_guessed_format().unwrap().into_dimensions().unwrap();
assert_eq!(dim, (600, 300));
let png_out = s.execute("document.export", &json!({"format": "png"})).unwrap();
let bytes = vectorcraft_format::base64_decode(png_out["dataBase64"].as_str().unwrap()).unwrap();
let rendered = image::load_from_memory(&bytes).unwrap();
assert!(rendered.width() >= 400 && rendered.height() >= 300);
assert!(near(centre_colour(&s.doc().unwrap().doc), RED), "canvas still shows the preview");
}
/// The half of opening that the desktop app runs on a thread of its own (`read_for_open`) reads
/// the linked files and lays out the type. The half left for the UI thread (`open_read`) reads no
/// file: with a linked file moved away in between, it opens the document that `document.open` opens.
#[test]
fn a_file_read_for_opening_has_its_links_read_and_its_type_laid_out() {
let dir = Folder::new("read-for-open");
let tif = dir.file("art/photo.tif");
let mut tiff = vec![];
image::RgbImage::from_pixel(600, 300, image::Rgb(RED)).write_to(&mut std::io::Cursor::new(&mut tiff), image::ImageFormat::Tiff).unwrap();
write(&tif, &tiff);
let (gone, changed) = (dir.file("gone.png"), dir.file("changed.png"));
write(&gone, &png(300, 100, BLUE));
write(&changed, &png(300, 100, BLUE));
let mut s = session();
let photo = place(&mut s, &tif);
place(&mut s, &gone);
place(&mut s, &changed);
let area = json!({"width": 150, "height": 20, "fit": "autoHeight"});
let r = s.execute("text.create", &json!({"x": 20, "y": 40, "text": "Linked files and type. ".repeat(12), "area": area})).unwrap();
let text = NodeId(r["id"].as_u64().unwrap());
s.execute("text.areaOptions", &json!({"ids": [text.0], "columns": 2})).unwrap();
let doc_path = dir.file("poster.vectorcraft");
save(&mut s, &doc_path);
std::fs::remove_file(&gone).unwrap();
write(&changed, &png(200, 200, RED));
let bytes = std::fs::read(&doc_path).unwrap();
let away = dir.file("away.tif");
for update in ["askWhenModified", "automatically"] {
let mut at_once = session();
at_once.execute("prefs.set", &json!({"key": "updateLinks", "value": update})).unwrap();
let expected = open(&mut at_once, &doc_path);
let rows = if update == "automatically" { &expected["updatedLinks"] } else { &expected["modifiedLinks"] };
assert!(expected["missingLinks"][0]["name"] == "gone.png" && rows[0]["name"] == "changed.png", "{update}: {expected}");
let file = cmd::fileio::read_for_open(&doc_path, &bytes, Some(doc_path.clone()), &Value::Null, update == "automatically", false).unwrap();
let doc = file.document();
let NodeKind::Image(im) = &doc.node(photo).unwrap().kind else { panic!("not an image") };
assert!(!doc.images[&im.key].is_proxy(), "{update}: the TIFF is read, not the preview saved for it");
let NodeKind::Text(t) = &doc.node(text).unwrap().kind else { panic!("not type") };
assert!(t.cached_bounds.is_some(), "{update}: the type is laid out");
std::fs::rename(&tif, &away).unwrap();
let mut opened = session();
let r = cmd::fileio::open_read(&mut opened, file).unwrap();
std::fs::rename(&away, &tif).unwrap();
assert_eq!(r, expected, "{update}");
let (a, b) = (at_once.doc().unwrap(), opened.doc().unwrap());
assert!(*b.doc == *a.doc, "{update}: the same document");
assert!(b.history.undo.is_empty() && !b.is_dirty(), "{update}");
}
}
#[test]
fn links_from_older_files_load_and_keep_their_pixels() {
let dir = Folder::new("legacy");
let pic = dir.file("photo.png");
let bytes = png(600, 300, RED);
write(&pic, &bytes);
let mut s = session();
s.execute("file.place", &json!({"path": pic, "at": [200, 150], "link": false})).unwrap();
// As older versions saved a link: the path alone, the pixels embedded.
let mut v: Value = serde_json::from_slice(&vectorcraft_format::save(&s.doc().unwrap().doc, false)).unwrap();
saved_image(&mut v)["link"] = json!(pic);
v["format"] = json!("drawcraft");
let legacy = serde_json::to_vec(&v).unwrap();
let doc_path = dir.file("old.drawcraft");
write(&doc_path, &legacy);
let r = open(&mut s, &doc_path);
assert_eq!((r["missingLinks"].clone(), r["modifiedLinks"].clone()), (json!([]), json!([])), "{r}");
let st = s.doc().unwrap();
let id = st.doc.layers[0].children().unwrap()[0].id;
let im = image(&s, id);
let link = im.link.unwrap();
assert_eq!((link.path.as_str(), link.size), (pic.as_str(), Some(bytes.len() as u64)), "the details are filled in");
assert!(s.doc().unwrap().doc.images[&im.key].proxy.is_some(), "a preview to save from now on");
// Gone, the embedded pixels still show.
std::fs::remove_file(&pic).unwrap();
let r = open(&mut s, &doc_path);
assert_eq!(r["missingLinks"][0]["name"], "photo.png");
assert!(!s.doc().unwrap().doc.images[&im.key].is_proxy());
assert!(near(centre_colour(&s.doc().unwrap().doc), RED));
}
#[test]
fn without_a_file_system_the_saved_preview_shows() {
// What the web does: the document arrives as bytes and no linked file can be read.
let dir = Folder::new("web");
let pic = dir.file("photo.png");
write(&pic, &png(600, 300, RED));
let mut s = session();
let id = place(&mut s, &pic);
let saved = vectorcraft_format::save(&s.doc().unwrap().doc, false);
std::fs::remove_file(&pic).unwrap();
let doc = vectorcraft_format::load(&saved).unwrap();
assert!(doc.images.values().all(|b| b.is_proxy()));
assert!(near(centre_colour(&doc), RED), "the preview renders");
let r = s.execute("document.open", &json!({"name": "poster.vectorcraft", "dataBase64": vectorcraft_format::base64_encode(&saved)})).unwrap();
assert_eq!(r["missingLinks"][0]["ids"], json!([id.0]));
assert!(near(centre_colour(&s.doc().unwrap().doc), RED));
// Exports carry the preview.
let svg = s.execute("document.serialize", &json!({"format": "svg"})).unwrap();
assert!(svg["text"].as_str().unwrap().contains("data:image/png;base64,"));
}
#[test]
fn relative_paths_are_written_against_the_saved_file() {
let mut d = Document::new(10.0, 10.0);
let (lid, nid) = (d.layers[0].id, d.alloc_id());
let root = if cfg!(windows) { "C:\\work" } else { "/work" };
let sep = std::path::MAIN_SEPARATOR;
let im = ImageObject {
key: "k".into(),
width: 1,
height: 1,
xf: Default::default(),
link: Some(LinkInfo::new(format!("{root}{sep}art{sep}a.png"))),
placement: Default::default(),
pixels: None,
};
d.insert(Some(lid), 0, vectorcraft_doc::Node::new(nid, NodeKind::Image(Box::new(im)))).unwrap();
let rel = |dest: String| {
let d = cmd::links::with_relative_paths(&d, &dest).unwrap_or_else(|| d.clone());
match &d.node(nid).unwrap().kind {
NodeKind::Image(im) => im.link.as_ref().unwrap().relative.clone(),
_ => None,
}
};
assert_eq!(rel(format!("{root}{sep}doc.vectorcraft")).as_deref(), Some("art/a.png"));
assert_eq!(rel(format!("{root}{sep}docs{sep}deep{sep}doc.vectorcraft")).as_deref(), Some("../../art/a.png"));
assert_eq!(rel(format!("{root}{sep}art{sep}doc.vectorcraft")).as_deref(), Some("a.png"));
if cfg!(windows) {
assert_eq!(rel("D:\\other\\doc.vectorcraft".into()), None, "another drive");
assert_eq!(rel("c:\\WORK\\doc.vectorcraft".into()).as_deref(), Some("art/a.png"), "without case");
}
}
#[test]
fn a_placed_document_brings_its_links_with_the_files_pixels() {
let dir = Folder::new("place-doc");
let pic = dir.file("photo.png");
write(&pic, &png(600, 300, RED));
let mut s = session();
place(&mut s, &pic);
let doc_path = dir.file("part.vectorcraft");
save(&mut s, &doc_path);
let mut s = session();
// As an editable copy (placed linked, it stays one locked object).
s.execute("file.place", &json!({"path": doc_path, "link": false})).unwrap();
let doc = &s.doc().unwrap().doc;
let mut placed = vec![];
doc.visit_images(|_, im| placed.push(im.clone()));
let [im] = &placed[..] else { panic!("one image: {placed:?}") };
assert_eq!(im.link.as_ref().map(|l| l.path.as_str()), Some(pic.as_str()), "still linked");
assert!(!doc.images[&im.key].is_proxy(), "the file's pixels, not the preview");
}
/// The placed (linked) files of a `.ai` file come in with the preview the file keeps of them: one
/// not found shows it, one found is read at once into the same bounds, which isn't a change. A copy
/// saved without PDF compatibility, placed without Link, reads the found file too.
#[test]
fn links_of_an_imported_file_are_read_where_they_are_found() {
use vectorcraft_testkit::ai;
let dir = Folder::new("imported");
let pic = dir.file("photo.png").replace('\\', "/");
// A 2×1 preview (premultiplied ARGB: a blue at half opacity) of a file of 600 × 300 px placed at
// 60 × 30 pt, which the PDF part draws there too.
let place = format!(
"%AI5_BeginPlace\n[0.1 0 0 -0.1 20 80] 0 0 600 300 4 4 0\n({pic})`\n%AI26_BeginPlacedObjectPreview\n2 1 8 32 17 \x7f\x10\x10\x60\x7f\x10\x10\x60\n%AI26_EndPlacedObjectPreview\n~\n%AI5_EndPlace\n"
);
let doc_path = dir.file("poster.ai");
let data = ai::editing_data(200.0, 100.0, &ai::layer("Art", &place));
write(&doc_path, &ai::ai(data.as_bytes(), "0.56 0.56 0.87 rg 20 50 60 30 re f"));
let placed = |s: &Session| {
let mut found = vec![];
s.doc().unwrap().doc.visit_images(|n, im| found.push((n.geometric_bounds().unwrap(), im.clone())));
let [one] = &found[..] else { panic!("one image: {found:?}") };
one.clone()
};
let in_place = |b: Rect| [b.x0 - 20.0, b.y0 - 20.0, b.x1 - 80.0, b.y1 - 50.0].iter().all(|d| d.abs() < 1e-6);
let mut s = session();
let r = open(&mut s, &doc_path);
assert_eq!((r["missingLinks"][0]["name"].as_str(), r["missingLinks"][0]["path"].as_str()), (Some("photo.png"), Some(pic.as_str())), "{r}");
assert!(r["warnings"].as_array().unwrap().iter().any(|w| w.as_str().unwrap().contains("low-resolution preview")), "{r}");
let (b, im) = placed(&s);
assert!(in_place(b) && im.width == 2 && s.doc().unwrap().doc.images[&im.key].is_proxy(), "{b:?} {im:?}");
write(&pic, &png(600, 300, RED));
let r = open(&mut s, &doc_path);
assert_eq!((&r["missingLinks"], &r["modifiedLinks"], &r["updatedLinks"]), (&json!([]), &json!([]), &json!([])), "{r}");
let (b, im) = placed(&s);
assert!(in_place(b) && (im.width, im.height) == (600, 300) && im.link.as_ref().is_some_and(|l| l.hash.is_some()), "{b:?} {im:?}");
assert!(!s.doc().unwrap().doc.images[&im.key].is_proxy());
let alone = dir.file("alone.ai");
write(&alone, &ai::ai(data.as_bytes(), "BT /F1 12 Tf 10 50 Td (Saved without its PDF part) Tj ET"));
let mut s = session();
s.execute("file.place", &json!({"path": alone, "link": false})).unwrap();
let (_, im) = placed(&s);
assert!((im.width, im.height) == (600, 300) && !s.doc().unwrap().doc.images[&im.key].is_proxy(), "{im:?}");
}