Files
figcraft/crates/engine/src/board_tests.rs
T
BFlat e97961ba66 M12: stamps stick to the objects they land on, which are highlighted first (#1671)
* M12: stamps stick to the objects they land on

A stamp sticks to the topmost object under its centre (BoardItem::Stamp gains an optional on, left out when empty so older files open with stamps on nothing) and the board's normalize pass carries it when that object moves or turns, once when both move together. A stamp dragged onto another object sticks to that one, off everything to nothing; one whose object is deleted stays where it is. Gap 24.

* M12: the object a stamp will stick to is highlighted

While the stamp tool is over an object, or a stamp is dragged over one, the object it will stick to is outlined with the canvas's hover outline (Overlay::stamp_target, found by the same stamp_target as board.stamp and settle_stamps). A drag no longer drops what it moves into the auto layout of a sticky, shape with text or table: board objects take no drops; a stamp already inside its sticky moves with it once. Builds on #1671. Gap 24.
2026-10-31 00:25:38 +07:00

418 lines
22 KiB
Rust

//! Boards: the file kind, sticky notes, shapes with text, connectors that follow what they join
//! (locally, through undo and in live sessions), stamps, ink and the eraser, and refusals.
use figcraft_doc::{
BOARD_PAGE, BoardItem, BoardShape, Connector, End, FileKind, Node, NodeId, NodeKind, Routing, Side, Stamp, StrokeCap, board_color,
};
use figcraft_geom::Point;
use serde_json::{Value, json};
use crate::board::{route, sticky_font_size};
use crate::collab_live_tests::Room;
use crate::tools::{PointerEvent, PointerKind, ToolId};
use crate::{EngineError, Session};
pub(crate) fn board() -> Session {
let mut s = Session::new();
s.execute("file.newBoard", &json!({"name": "Ideas"})).unwrap();
s
}
pub(crate) fn id(v: &Value, key: &str) -> NodeId {
v[key].as_u64().map(NodeId).unwrap_or_else(|| panic!("no {key} in {v}"))
}
pub(crate) fn node(s: &Session, id: NodeId) -> Node {
s.doc().unwrap().node(id).unwrap().clone()
}
pub(crate) fn connector(s: &Session, id: NodeId) -> Connector {
match node(s, id).board {
Some(BoardItem::Connector(c)) => c,
other => panic!("not a connector: {other:?}"),
}
}
/// Connector `id`'s points on the page.
pub(crate) fn drawn(s: &Session, id: NodeId) -> Vec<Point> {
let doc = s.doc().unwrap();
let NodeKind::Vector { network } = &doc.node(id).unwrap().kind else { panic!("not a vector") };
let w = doc.world_transform(id);
network.vertices.iter().map(|v| w * v.point()).collect()
}
pub(crate) fn near(a: Point, b: Point) -> bool {
(a - b).hypot() < 1e-6
}
#[test]
fn a_board_is_a_kind_of_file_that_saves_and_reopens() {
let s = board();
let doc = s.doc().unwrap();
assert_eq!(doc.kind, FileKind::Board);
assert!(matches!(doc.node(doc.pages[0]).unwrap().kind, NodeKind::Page { background, .. } if background == BOARD_PAGE));
let (back, _) = figcraft_format::from_json(&figcraft_format::to_json(doc).unwrap().to_string()).unwrap();
assert_eq!(back.kind, FileKind::Board);
// Files from before boards (no kind) are design files, and design files don't write one.
let mut d = Session::new();
d.execute("file.new", &json!({})).unwrap();
let json = figcraft_format::to_json(d.doc().unwrap()).unwrap();
assert!(json.get("kind").is_none());
assert_eq!(figcraft_format::from_json(&json.to_string()).unwrap().0.kind, FileKind::Design);
assert_eq!(crate::inspect::document(&s, 0, false)["kind"], "board", "inspect shows the kind");
}
#[test]
fn board_commands_refuse_on_design_files_and_prototyping_refuses_on_boards() {
let mut d = Session::new();
d.execute("file.new", &json!({})).unwrap();
for (cmd, p) in [("board.sticky", json!({"x": 0, "y": 0})), ("tool.sticky", json!({})), ("tool.set", json!({"tool": "marker"}))] {
assert!(matches!(d.execute(cmd, &p), Err(EngineError::Disabled(..))), "{cmd} on a design file");
}
let mut s = board();
for cmd in ["view.devMode", "view.prototype", "proto.present", "proto.flow.add", "dev.focus"] {
let e = s.execute(cmd, &json!({})).unwrap_err();
assert!(e.to_string().contains("boards have no prototypes"), "{cmd}: {e}");
}
}
#[test]
fn a_sticky_is_a_square_frame_whose_note_shrinks_as_it_grows() {
let mut s = board();
s.prefs.user_name = "Ada".into();
let r = s.execute("board.sticky", &json!({"x": 10, "y": 20, "text": "Hi", "color": "blue"})).unwrap();
let (st, note) = (id(&r, "id"), id(&r, "text"));
let n = node(&s, st);
assert!(n.is_board_atom() && matches!(&n.board, Some(BoardItem::Sticky { author }) if author == "Ada"));
assert_eq!((n.width, n.height), (200.0, 200.0));
assert_eq!(n.fills[0].solid_color(), board_color("blue"));
assert!(n.layout.is_some() && !n.effects.is_empty());
assert_eq!(n.children.len(), 2, "the note and its author");
assert_eq!(node(&s, note).kind.text().unwrap().style.font_size, 24.0);
// A click on the note picks the sticky whole.
let doc = s.doc().unwrap();
assert_eq!(figcraft_doc::geometry::select_target(doc, note, &[], false), st);
// A long note takes a smaller size; a very long one grows the sticky past its square.
let long = "word ".repeat(120);
s.execute("node.set", &json!({"id": note, "props": {"characters": long}})).unwrap();
assert_eq!(node(&s, note).kind.text().unwrap().style.font_size, sticky_font_size(&long));
assert!(sticky_font_size(&long) < 16.0);
assert!(node(&s, st).width == 200.0 && node(&s, st).height >= 200.0);
// Undo puts the short note and its size back.
s.execute("edit.undo", &json!({})).unwrap();
assert_eq!(node(&s, note).kind.text().unwrap().style.font_size, 24.0);
}
#[test]
fn next_sticky_goes_beside_in_the_same_colour_and_emptied_notes_stay() {
let mut s = board();
let a = id(&s.execute("board.sticky", &json!({"x": 0, "y": 0, "color": "pink"})).unwrap(), "id");
let r = s.execute("board.nextSticky", &json!({})).unwrap();
let b = id(&r, "id");
let (na, nb) = (node(&s, a), node(&s, b));
assert_eq!(nb.transform.translation().x, na.width + 24.0);
assert_eq!(nb.fills, na.fills);
assert_eq!(s.selection(), vec![b]);
// Typing in it and emptying it again keeps its note; ending selects the sticky.
let note = id(&r, "text");
crate::board::edit_text(&mut s, b).unwrap();
crate::textedit::insert(&mut s, "x").unwrap();
crate::textedit::key(&mut s, "Backspace", false, false, false).unwrap();
crate::textedit::end(&mut s).unwrap();
assert!(s.doc().unwrap().contains(note));
assert_eq!(s.selection(), vec![b]);
}
#[test]
fn shapes_carry_text_and_change_outline() {
let mut s = board();
let r = s.execute("board.shape", &json!({"shape": "diamond", "x": 0, "y": 0, "text": "Decide", "color": "green"})).unwrap();
let sh = id(&r, "id");
let n = node(&s, sh);
assert_eq!(n.board, Some(BoardItem::Shape { shape: BoardShape::Diamond }));
assert_eq!(n.children.len(), 2);
assert!(matches!(node(&s, n.children[0]).kind, NodeKind::Vector { .. }));
s.execute("board.setStyle", &json!({"ids": [sh], "shape": "speechBubble", "fontSize": 24})).unwrap();
assert_eq!(node(&s, sh).board, Some(BoardItem::Shape { shape: BoardShape::SpeechBubble }));
assert_eq!(node(&s, id(&r, "text")).kind.text().unwrap().style.font_size, 24.0);
s.execute("board.setColor", &json!({"ids": [sh], "color": "#FF0000"})).unwrap();
assert_eq!(node(&s, n.children[0]).fills[0].solid_color().map(|c| c.to_hex()), Some("FF0000".into()));
assert!(s.execute("board.shape", &json!({"shape": "blob", "x": 0, "y": 0})).is_err());
}
#[test]
fn connectors_follow_what_they_join_and_undo_with_it() {
let mut s = board();
let a = id(&s.execute("board.sticky", &json!({"x": 0, "y": 0})).unwrap(), "id");
let b = id(&s.execute("board.sticky", &json!({"x": 400, "y": 0})).unwrap(), "id");
let c = id(&s.execute("board.connector", &json!({"from": a, "to": b, "style": "straight", "label": "then"})).unwrap(), "id");
let pts = drawn(&s, c);
assert!(near(pts[0], Point::new(200.0, 100.0)) && near(pts[1], Point::new(400.0, 100.0)), "{pts:?}");
assert_eq!(node(&s, c).stroke.cap_end, StrokeCap::TriangleArrow);
// Its label sits at the middle.
let label = crate::board::label_of(s.doc().unwrap(), c).unwrap();
let lb = s.doc().unwrap().world_bounds(label).unwrap();
assert!(near(lb.center(), Point::new(300.0, 100.0)), "{lb:?}");
// Move one end: the connector re-routes (elbow now, out of the facing sides).
s.execute("board.setStyle", &json!({"ids": [c], "style": "elbow"})).unwrap();
s.execute("transform.move", &json!({"ids": [b], "dx": 0, "dy": 300})).unwrap();
let pts = drawn(&s, c);
assert!(near(pts[0], Point::new(200.0, 100.0)) && near(*pts.last().unwrap(), Point::new(400.0, 400.0)), "{pts:?}");
assert!(pts.windows(2).all(|w| w[0].x == w[1].x || w[0].y == w[1].y), "right angles: {pts:?}");
// Undo takes the move back and the route with it.
s.execute("edit.undo", &json!({})).unwrap();
assert!(near(*drawn(&s, c).last().unwrap(), Point::new(400.0, 100.0)));
// A deleted end stays where it was, as a point.
s.execute("edit.delete", &json!({"ids": [b]})).unwrap();
assert!(matches!(connector(&s, c).to, End::Point { .. }));
assert!(near(*drawn(&s, c).last().unwrap(), Point::new(400.0, 100.0)));
// A connector moved on its own takes its free end along; the attached one stays.
s.execute("transform.move", &json!({"ids": [c], "dx": 0, "dy": 50})).unwrap();
assert!(matches!(connector(&s, c).to, End::Point { x, y } if x == 400.0 && y == 150.0), "{:?}", connector(&s, c));
assert!(near(drawn(&s, c)[0], Point::new(200.0, 100.0)));
// Deleting the connector takes its label.
s.execute("edit.delete", &json!({"ids": [c]})).unwrap();
assert!(!s.doc().unwrap().contains(label));
assert!(s.execute("board.connector", &json!({"from": a, "to": a})).is_err());
}
#[test]
fn routes_are_the_same_for_the_same_document() {
let mut s = board();
let a = id(&s.execute("board.shape", &json!({"x": 0, "y": 0})).unwrap(), "id");
let c = Connector { from: End::Node { node: a, side: Side::Bottom }, to: End::Point { x: 300.0, y: 500.0 }, routing: Routing::Elbow };
let doc = s.doc().unwrap();
let r = route(doc, &c).unwrap();
assert_eq!(r, route(&doc.clone(), &c).unwrap());
// Down out of the bottom, across halfway, down into the point.
assert_eq!(r, vec![Point::new(80.0, 160.0), Point::new(80.0, 330.0), Point::new(300.0, 330.0), Point::new(300.0, 500.0)]);
}
#[test]
fn stamps_and_ink_and_the_eraser() {
let mut s = board();
s.prefs.user_name = "Grace".into();
let st = id(&s.execute("board.stamp", &json!({"x": 100, "y": 100, "stamp": "heart"})).unwrap(), "id");
let n = node(&s, st);
assert_eq!(n.board, Some(BoardItem::Stamp { stamp: Stamp::Heart, author: "Grace".into(), on: None }), "on the empty board: on nothing");
assert_eq!(s.doc().unwrap().world_bounds(st).unwrap().center(), Point::new(100.0, 100.0));
assert!(!n.children.is_empty());
// Marker and highlighter strokes through the tools; the eraser takes what it touches.
let draw = |s: &mut Session, tool: &str, y: f64| {
s.execute("tool.set", &json!({"tool": tool})).unwrap();
for (k, x) in [(PointerKind::Down, 0.0), (PointerKind::Move, 50.0), (PointerKind::Move, 100.0), (PointerKind::Up, 150.0)] {
s.pointer(&PointerEvent::at(k, x, y, 1.0)).unwrap();
}
};
draw(&mut s, "marker", 300.0);
draw(&mut s, "highlighter", 400.0);
let inks: Vec<Node> = s.doc().unwrap().nodes().filter(|n| n.board == Some(BoardItem::Ink)).cloned().collect();
assert_eq!(inks.len(), 2);
assert!(inks.iter().any(|n| n.opacity < 1.0 && n.stroke.weight > 10.0), "a highlighter stroke");
let undo = s.undo_depth().0;
s.execute("tool.eraser", &json!({})).unwrap();
for (k, x) in [(PointerKind::Down, 20.0), (PointerKind::Move, 60.0), (PointerKind::Up, 80.0)] {
s.pointer(&PointerEvent::at(k, x, 300.0, 1.0)).unwrap();
}
assert_eq!(s.doc().unwrap().nodes().filter(|n| n.board == Some(BoardItem::Ink)).count(), 1, "the marker stroke is gone");
assert_eq!(s.undo_depth().0, undo + 1, "one step");
assert_eq!(s.tool.tool, ToolId::Eraser);
}
/// A stamp sticks to the object it lands on and moves with it (as the incumbent's stamps do); one
/// dragged onto another object sticks to that one, one dragged off sticks to nothing, and one
/// whose object is deleted stays where it is.
#[test]
fn stamps_stick_to_what_they_land_on() {
let mut s = board();
let a = id(&s.execute("board.sticky", &json!({"x": 0, "y": 0})).unwrap(), "id");
let b = id(&s.execute("board.sticky", &json!({"x": 400, "y": 0})).unwrap(), "id");
let on = |s: &Session, st: NodeId| match node(s, st).board {
Some(BoardItem::Stamp { on, .. }) => on,
other => panic!("not a stamp: {other:?}"),
};
let centre = |s: &Session, st: NodeId| s.doc().unwrap().world_bounds(st).unwrap().center();
let mv = |s: &mut Session, ids: &[NodeId], dx: f64, dy: f64| {
s.execute("transform.move", &json!({"ids": ids, "dx": dx, "dy": dy})).unwrap();
};
let st = id(&s.execute("board.stamp", &json!({"x": 50, "y": 50, "stamp": "heart"})).unwrap(), "id");
assert_eq!(on(&s, st), Some(a));
// The sticky moves, the stamp with it; both moved together, once; undo takes both back.
mv(&mut s, &[a], 30.0, 200.0);
assert_eq!(centre(&s, st), Point::new(80.0, 250.0));
mv(&mut s, &[a, st], 10.0, 0.0);
assert_eq!((centre(&s, st), on(&s, st)), (Point::new(90.0, 250.0), Some(a)));
s.execute("edit.undo", &json!({})).unwrap();
assert_eq!(centre(&s, st), Point::new(80.0, 250.0));
// Dragged onto the other sticky, it sticks to that one.
mv(&mut s, &[st], 370.0, -200.0);
assert_eq!(on(&s, st), Some(b));
mv(&mut s, &[b], 0.0, 100.0);
assert_eq!(centre(&s, st), Point::new(450.0, 150.0));
mv(&mut s, &[a], 0.0, 300.0);
assert_eq!(centre(&s, st), Point::new(450.0, 150.0), "the first sticky doesn't take it along any more");
// Its sticky deleted, it stays where it is, on nothing; dragged off everything, on nothing.
s.execute("edit.delete", &json!({"ids": [b]})).unwrap();
assert_eq!((on(&s, st), centre(&s, st)), (None, Point::new(450.0, 150.0)));
let other = id(&s.execute("board.stamp", &json!({"x": 130, "y": 600, "stamp": "star"})).unwrap(), "id");
assert_eq!(on(&s, other), Some(a));
mv(&mut s, &[other], 0.0, 1000.0);
assert_eq!(on(&s, other), None);
// One that sits inside its sticky (dropped into it before stickies stopped taking layers in)
// moves with it once, as its child.
let inside = id(&s.execute("board.stamp", &json!({"x": 100, "y": 600, "stamp": "check"})).unwrap(), "id");
assert_eq!(on(&s, inside), Some(a));
s.doc_mut().unwrap().reparent(inside, a, None).unwrap();
let was = centre(&s, inside);
mv(&mut s, &[a], 40.0, 0.0);
assert_eq!(centre(&s, inside), Point::new(was.x + 40.0, was.y), "moved once");
// A file from before stamps stuck opens with its stamps on nothing.
let old: BoardItem = serde_json::from_value(json!({"type": "stamp", "stamp": "heart", "author": "Grace"})).unwrap();
assert_eq!(old, BoardItem::Stamp { stamp: Stamp::Heart, author: "Grace".into(), on: None });
}
#[test]
fn the_sticky_and_connector_tools() {
let mut s = board();
s.execute("tool.sticky", &json!({"color": "orange"})).unwrap();
s.pointer(&PointerEvent::at(PointerKind::Down, 100.0, 100.0, 1.0)).unwrap();
s.pointer(&PointerEvent::at(PointerKind::Up, 100.0, 100.0, 1.0)).unwrap();
let te = s.ds().unwrap().text_edit.clone().expect("typing in the new sticky");
let a = crate::board::owner_of_text(s.doc().unwrap(), te.id).unwrap();
assert_eq!(node(&s, a).fills[0].solid_color(), board_color("orange"));
crate::textedit::insert(&mut s, "First").unwrap();
crate::textedit::end(&mut s).unwrap();
let b = id(&s.execute("board.sticky", &json!({"x": 500, "y": 0})).unwrap(), "id");
s.execute("tool.connector", &json!({})).unwrap();
s.pointer(&PointerEvent::at(PointerKind::Down, 100.0, 100.0, 1.0)).unwrap();
s.pointer(&PointerEvent::at(PointerKind::Move, 300.0, 100.0, 1.0)).unwrap();
s.pointer(&PointerEvent::at(PointerKind::Up, 600.0, 100.0, 1.0)).unwrap();
let c = s.doc().unwrap().nodes().find(|n| matches!(n.board, Some(BoardItem::Connector(_)))).map(|n| n.id).unwrap();
let k = connector(&s, c);
assert_eq!((k.from.node(), k.to.node()), (Some(a), Some(b)));
}
#[test]
fn boards_sync_in_live_sessions() {
let mut s = board();
let a = id(&s.execute("board.sticky", &json!({"x": 0, "y": 0, "text": "A"})).unwrap(), "id");
let mut room = Room::new(s.doc().unwrap().clone(), 2, 7);
assert_eq!(room.s(1).doc().unwrap().kind, FileKind::Board, "joiners get a board");
let b = id(&room.s(1).execute("board.sticky", &json!({"x": 400, "y": 0, "text": "B"})).unwrap(), "id");
room.settle();
let c = id(&room.s(0).execute("board.connector", &json!({"from": a, "to": b})).unwrap(), "id");
room.s(1).execute("board.stamp", &json!({"x": 50, "y": 50, "stamp": "star"})).unwrap();
room.settle();
room.check();
// Person 1 moves the sticky person 0 connected: both see the connector follow it.
room.s(1).execute("transform.move", &json!({"ids": [b], "dx": 0, "dy": 250})).unwrap();
room.s(0).execute("board.setColor", &json!({"ids": [a], "color": "violet"})).unwrap();
room.settle();
room.check();
let doc = room.server.document();
let NodeKind::Vector { network } = &doc.node(c).unwrap().kind else { panic!("not a vector") };
let end = doc.world_transform(c) * network.vertices.last().unwrap().point();
assert_eq!(end, Point::new(400.0, 350.0), "to the moved sticky's facing side");
assert_eq!(doc.node(a).unwrap().fills[0].solid_color(), board_color("violet"));
}
#[test]
fn board_commands_survive_junk() {
let junk = [
json!({}),
json!(null),
json!([1]),
json!({"x": "NaN", "y": 1e308, "text": 5, "color": [1], "author": {"x": 1}, "parent": "p"}),
json!({"x": -1e308, "y": 0, "color": "neon", "shape": 7, "width": -5, "height": 1e308, "stamp": "skull"}),
json!({"from": {"x": "a"}, "to": 99_999, "fromSide": "inside", "style": 3, "startCap": "spike", "endCap": 7, "label": [1]}),
json!({"from": {"x": 1e308, "y": -1e308}, "to": {"x": 0, "y": 0}, "style": "elbow", "label": "\u{0}"}),
json!({"ids": ["x", -1, 99_999], "color": "#GGG", "fontSize": -1, "side": "up", "edit": "yes"}),
json!({"id": 2, "text": "", "path": "M0 0 L", "points": [[1]], "highlighter": "yes"}),
json!({"path": "M0 0 L 1e308 1e308", "points": [[0, 0], [1e308, 1]]}),
json!({"end": "from", "target": {"x": 1e308, "y": -1e308}, "side": "inside", "style": "curved"}),
json!({"id": 99_999, "end": 7, "target": [1], "style": "wavy"}),
];
let ids: Vec<&str> = crate::cmd::all_commands()
.iter()
.map(|c| c.id)
.filter(|i| {
i.starts_with("board.")
|| ["tool.sticky", "tool.shape", "tool.connector", "tool.marker", "tool.highlighter", "tool.eraser", "tool.stamp", "file.newBoard"]
.contains(i)
})
.collect();
assert!(ids.len() >= 17, "{ids:?}");
for cmd in ids {
for j in &junk {
let mut s = board();
let a = s.execute("board.sticky", &json!({"x": 0, "y": 0})).unwrap()["id"].clone();
let b = s.execute("board.shape", &json!({"x": 300, "y": 0})).unwrap()["id"].clone();
let _ = s.execute("board.connector", &json!({"from": a, "to": b, "label": "x"}));
if let Err(EngineError::Internal { cmd, msg }) = s.execute(cmd, j) {
panic!("{cmd} panicked on {j}: {msg}");
}
}
}
// Every other command on a board with objects on it.
for spec in crate::cmd::all_commands() {
if spec.id.starts_with("file.") && spec.id != "file.newBoard" || spec.id == "text.rescanFonts" || spec.id == "image.place" {
continue;
}
for j in &junk[..3] {
let mut s = board();
let a = s.execute("board.sticky", &json!({"x": 0, "y": 0})).unwrap()["id"].clone();
let b = s.execute("board.stamp", &json!({"x": 300, "y": 0})).unwrap()["id"].clone();
let _ = s.execute("board.connector", &json!({"from": a, "to": b}));
if let Err(EngineError::Internal { cmd, msg }) = s.execute(spec.id, j) {
panic!("{cmd} panicked on {j}: {msg}");
}
}
}
}
#[test]
fn a_press_on_a_stickys_background_picks_and_drags_it() {
let mut s = board();
let a = id(&s.execute("board.sticky", &json!({"x": 0, "y": 0, "text": "Hi"})).unwrap(), "id");
let b = id(&s.execute("board.sticky", &json!({"x": 400, "y": 0})).unwrap(), "id");
let c = id(&s.execute("board.connector", &json!({"from": a, "to": b})).unwrap(), "id");
s.execute("select.none", &json!({})).unwrap();
// Below the note, on the sticky's own fill (a top-level frame's background is the canvas).
s.pointer(&PointerEvent::at(PointerKind::Down, 100.0, 150.0, 1.0)).unwrap();
s.pointer(&PointerEvent::at(PointerKind::Move, 100.0, 250.0, 1.0)).unwrap();
s.pointer(&PointerEvent::at(PointerKind::Move, 100.0, 450.0, 1.0)).unwrap();
s.pointer(&PointerEvent::at(PointerKind::Up, 100.0, 450.0, 1.0)).unwrap();
assert_eq!(s.selection(), vec![a]);
assert_eq!(node(&s, a).transform.translation().y, 300.0);
assert!(near(drawn(&s, c)[0], Point::new(200.0, 400.0)), "the connector followed the drag: {:?}", drawn(&s, c));
}
#[test]
fn a_copy_of_joined_objects_joins_the_copies() {
let mut s = board();
let a = id(&s.execute("board.sticky", &json!({"x": 0, "y": 0})).unwrap(), "id");
let b = id(&s.execute("board.sticky", &json!({"x": 400, "y": 0})).unwrap(), "id");
let c = id(&s.execute("board.connector", &json!({"from": a, "to": b, "label": "x"})).unwrap(), "id");
let label = crate::board::label_of(s.doc().unwrap(), c).unwrap();
s.execute("edit.duplicate", &json!({"ids": [a, b, c, label]})).unwrap();
let copies = s.selection();
assert_eq!(copies.len(), 4, "{copies:?}");
let k = copies.iter().find_map(|i| match node(&s, *i).board {
Some(BoardItem::Connector(k)) => Some(k),
_ => None,
});
let k = k.unwrap();
assert!(copies.contains(&k.from.node().unwrap()) && copies.contains(&k.to.node().unwrap()), "{k:?} {copies:?}");
// Copy and paste too.
s.execute("select.set", &json!({"ids": [a, b, c]})).unwrap();
s.execute("edit.copy", &json!({})).unwrap();
s.execute("edit.paste", &json!({})).unwrap();
let pasted = s.selection();
let k = pasted.iter().find_map(|i| match node(&s, *i).board {
Some(BoardItem::Connector(k)) => Some(k),
_ => None,
});
let k = k.unwrap();
assert!(pasted.contains(&k.from.node().unwrap()) && pasted.contains(&k.to.node().unwrap()), "{k:?} {pasted:?}");
}