Files
OneCAD/crates/ui-egui/src/dialogs_sheet_tests.rs
T
NOWN-DEVandClaude Opus 5.5 a1cb8d4d36 feat: Convert to Sheet Metal takes a solid or a shelled body by its bend edges (#725)
Convert to Sheet Metal now takes a solid or a shelled body by its bend edges (`bends`): the faces reached from the fixed face across those edges become the sheet, keeping the part's envelope, with the flat pattern by the rule's K-factor and radius. Other edges between sheet faces are cut open. The result works with edge flanges, cuts, Unfold/Refold, the flat pattern and DXF. A conversion without `bends` is the plate conversion as before. The optional `bends` field is noted under format 17. Fixes #647.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-13 10:52:28 -04:00

462 lines
22 KiB
Rust
Raw Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
use serde_json::json;
use solidcraft_engine::Session;
use super::*;
use crate::Services;
use crate::dialogs::{apply_commands, for_feature as edit_dialog};
/// A 100 x 60 base flange on XY (2.5 mm steel).
fn plate() -> SolveApp {
let mut s = Session::default();
s.execute("sketch.create", &json!({"plane": "XY", "name": "Base"})).unwrap();
s.execute("sketch.rectangle.two_point", &json!({"p0": [0, 0], "p1": [100, 60]})).unwrap();
s.execute("sketch.finish", &json!({})).unwrap();
SolveApp::new(s, Services::default())
}
fn run_all(app: &mut SolveApp, c: Vec<(String, Value)>) {
for (id, p) in c {
app.run(&id, p).unwrap();
}
}
/// The picks decide the flange: a profile makes the base, edges then edge flanges with the
/// dialog's height, angle and bend position; Edit Feature brings the edges back.
#[test]
fn flange_follows_the_picks() {
let mut app = plate();
let sk = app.session.doc.features[0].id;
app.session.selection = vec![Sel::Profile { sketch: sk, index: 0 }];
app.start("sheet.flange");
let d = app.dialog.clone().unwrap();
let c = apply_commands(&app, &d).unwrap();
assert_eq!(c[0].1["type"], "base");
assert_eq!(c[0].1["profiles"], json!([0]));
run_all(&mut app, c);
assert_eq!(app.session.model.state().sheets.len(), 1);
// Four edge flanges at once, 20 high, outside.
let edges: Vec<Sel> = [[50.0, 0.0, 2.5], [50.0, 60.0, 2.5], [0.0, 30.0, 2.5], [100.0, 30.0, 2.5]]
.iter()
.filter_map(|p| edge_sel(&app.session, Vec3::new(p[0], p[1], p[2])))
.collect();
assert_eq!(edges.len(), 4);
app.session.selection = edges;
app.start("sheet.flange");
let mut d = app.dialog.clone().unwrap();
if let Kind::Sheet(Sm::Flange { height, position, .. }) = &mut d.kind {
*height = "20 mm".into();
*position = 1;
}
assert_eq!(d.primary().map(|p| p.0), Some("Height"), "the arrow drives the height");
assert!(arrow(&app, &d).is_some_and(|n| n.dist(Vec3::Z) < 1e-9), "edge flanges rise out of the sheet");
let c = apply_commands(&app, &d).unwrap();
assert_eq!(c[0].1["type"], "edge");
assert_eq!(c[0].1["edges"].as_array().map(Vec::len), Some(4));
assert_eq!(c[0].1["position"], "outside");
run_all(&mut app, c);
let f = app.session.doc.features.last().unwrap().clone();
let e = edit_dialog(&app, f.id, None).unwrap();
assert_eq!(e.inputs[0].items.len(), 4);
assert!(matches!(&e.kind, Kind::Sheet(Sm::Flange { ty: 1, position: 1, .. })));
// Rebuilt in place.
let c = apply_commands(&app, &e).unwrap();
assert_eq!(c[0].0, "timeline.redefine");
assert_eq!(c[0].1["params"]["height"], "20 mm");
// Flat pattern: four bends; Unfold previews.
let flat = app.session.execute("sheet.flat_pattern", &json!({})).unwrap();
assert_eq!(flat["bends"].as_array().map(Vec::len), Some(4), "{flat}");
app.dialog = None;
app.start("sheet.unfold");
assert_eq!(apply_commands(&app, app.dialog.as_ref().unwrap()).unwrap()[0].0, "sheet.unfold");
}
/// Hem takes edges and an optional gap; rules make and pick a rule with its expressions.
#[test]
fn hem_and_rules() {
let mut app = plate();
app.run("sheet.flange", json!({"sketch": "Base"})).unwrap();
app.session.selection = edge_sel(&app.session, Vec3::new(50.0, 0.0, 2.5)).into_iter().collect();
app.start("sheet.hem");
let d = app.dialog.clone().unwrap();
let c = apply_commands(&app, &d).unwrap();
assert_eq!(c[0].1["length"], "5 mm");
assert!(c[0].1.get("gap").is_none(), "the rule's gap");
run_all(&mut app, c);
app.dialog = None;
app.start("sheet.manage_rules");
let mut d = app.dialog.clone().unwrap();
if let Kind::Sheet(Sm::Rules { pick, name, values, loaded, .. }) = &mut d.kind {
*pick = 1;
*loaded = Some(1);
*name = "Alu".into();
*values = vec![
"1.5 mm".into(),
"0.4".into(),
"Thickness".into(),
"Thickness".into(),
"Thickness".into(),
"Thickness".into(),
"Thickness".into(),
"Thickness".into(),
];
}
let c = apply_commands(&app, &d).unwrap();
assert_eq!(c[0].1["name"], "Alu");
assert_eq!(c[0].1["thickness"], "1.5 mm");
run_all(&mut app, c);
assert!(app.session.doc.sheet.rules.iter().any(|r| r.name == "Alu"));
}
#[test]
fn flat_exports_use_the_save_picker() {
use std::sync::{Arc, Mutex};
let mut app = plate();
app.run("sheet.flange", json!({"sketch": "Base"})).unwrap();
let picks = Arc::new(Mutex::new(Vec::new()));
let captured = picks.clone();
app.services.pick_save = Some(Box::new(move |name, extensions| {
captured.lock().unwrap().push((name.to_string(), extensions.iter().map(|x| x.to_string()).collect::<Vec<_>>()));
None
}));
assert_eq!(export_flat(&mut app, "Base", "csv"), "Export cancelled");
assert_eq!(export_flat(&mut app, "Base", "dxf"), "Export cancelled");
let picks = picks.lock().unwrap();
assert!(picks[0].0.ends_with("-Base.csv"));
assert_eq!(picks[0].1, vec!["csv"]);
assert!(picks[1].0.ends_with("-Base.dxf"));
assert_eq!(picks[1].1, vec!["dxf"]);
}
#[test]
fn shallow_pocket_overlay_labels_depth_without_drawing_a_through_void() {
let mut app = plate();
app.run("sheet.flange", json!({"sketch": "Base"})).unwrap();
app.run("sketch.create", json!({"plane": "XY", "name": "Pocket"})).unwrap();
app.run("sketch.rectangle.two_point", json!({"p0": [20, 20], "p1": [30, 30]})).unwrap();
app.run("sketch.finish", json!({})).unwrap();
app.run("solid.extrude", json!({"sketch": "Pocket", "distance": 1, "operation": "cut"})).unwrap();
let flat = app.session.execute("sheet.flat_pattern", &json!({})).unwrap();
assert_eq!(flat["cutouts"], json!([]));
assert_eq!(flat["pockets"][0]["depth_mm"], 1.0);
app.start("sheet.flat_pattern");
let mut dialog = app.dialog.clone().unwrap();
let Kind::Sheet(Sm::FlatPattern { data, .. }) = &mut dialog.kind else { panic!("flat dialog") };
*data = Some(Ok(flat));
let ctx = egui::Context::default();
let mut output = ctx.run_ui(egui::RawInput::default(), |ui| {
let painter = ui.ctx().layer_painter(egui::LayerId::new(egui::Order::Middle, egui::Id::new("flat-pocket-test")));
assert!(overlay(&app, &painter, Rect::from_min_size(Pos2::ZERO, vec2(1400.0, 900.0)), &dialog));
});
output.textures_delta.clear();
let texts: Vec<&str> = output
.shapes
.iter()
.filter_map(|s| match &s.shape {
egui::Shape::Text(text) => Some(text.galley.text()),
_ => None,
})
.collect();
assert!(texts.contains(&"Bottom pocket: 1.00 mm deep"));
assert!(texts.contains(&"Pocket boundary (material remains)"));
let paths: Vec<_> = output
.shapes
.iter()
.filter_map(|s| match &s.shape {
egui::Shape::Path(path) => Some(path),
_ => None,
})
.collect();
assert!(!paths.is_empty(), "the retained sheet outline is drawn");
assert!(paths.iter().all(|p| p.fill == Color32::TRANSPARENT), "pockets must not be rendered as filled voids");
let lines = output.shapes.iter().filter(|s| matches!(s.shape, egui::Shape::LineSegment { .. })).count();
assert!(lines > 6, "pocket contours and legend use dashed lines, not through-cut strokes");
}
#[test]
fn flat_pattern_islands_fit_before_the_actual_command_panel() {
let mut app = plate();
app.run("sheet.flange", json!({"sketch": "Base"})).unwrap();
app.run("sketch.create", json!({"plane": "XY", "name": "Retain"})).unwrap();
for x in [20, 60] {
app.run("sketch.rectangle.two_point", json!({"p0": [x, 20], "p1": [x + 10, 30]})).unwrap();
}
app.run("sketch.finish", json!({})).unwrap();
app.run("solid.extrude", json!({"sketch": "Retain", "profiles": "all", "through_all": true, "direction": "symmetric", "operation": "intersect"}))
.unwrap();
let flat = app.session.execute("sheet.flat_pattern", &json!({})).unwrap();
assert_eq!(flat["outline"].as_array().unwrap().len(), 2);
app.start("sheet.flat_pattern");
let mut dialog = app.dialog.clone().unwrap();
let Kind::Sheet(Sm::FlatPattern { data, .. }) = &mut dialog.kind else { panic!("flat dialog") };
*data = Some(Ok(flat));
let ctx = egui::Context::default();
let id = egui::Id::new(("sc_dialog", "FLAT PATTERN"));
let mut output = egui::FullOutput::default();
for _ in 0..3 {
output = ctx.run_ui(egui::RawInput { screen_rect: Some(Rect::from_min_size(Pos2::ZERO, vec2(1400.0, 900.0))), ..Default::default() }, |ui| {
crate::frame::docked("FLAT PATTERN", id, pos2(1400.0, 294.0), 540.0, crate::frame::Width::Normal).min_width(360.0).show(ui.ctx(), |ui| {
ui.label("Flat size: 50 × 10 × 2.5 mm");
});
let painter = ui.ctx().layer_painter(egui::LayerId::new(egui::Order::Background, egui::Id::new("island-fit")));
assert!(overlay(&app, &painter, Rect::from_min_max(pos2(250.0, 126.0), pos2(1400.0, 832.0)), &dialog));
});
output.textures_delta.clear();
}
let panel = ctx.memory(|m| m.area_rect(id)).unwrap();
let outlines: Vec<_> = output
.shapes
.iter()
.filter_map(|s| match &s.shape {
egui::Shape::Path(p) if p.closed && p.fill == Color32::TRANSPARENT => Some(p),
_ => None,
})
.collect();
assert_eq!(outlines.len(), 2, "both retained islands are drawn");
assert!(
outlines.iter().flat_map(|p| &p.points).all(|p| p.x <= panel.left() - 19.0),
"both complete islands must remain exposed before the command panel: {panel:?}"
);
}
#[test]
fn coincident_top_and_bottom_pocket_depths_share_a_readable_annotation() {
let mut app = plate();
app.run("sheet.flange", json!({"sketch":"Base"})).unwrap();
app.run("sketch.create", json!({"plane":"XY","name":"Retain"})).unwrap();
app.run("sketch.rectangle.two_point", json!({"p0":[20,20],"p1":[30,30]})).unwrap();
app.run("sketch.finish", json!({})).unwrap();
app.run("solid.extrude", json!({"sketch":"Retain","distance":1,"start_offset":0.5,"operation":"intersect"})).unwrap();
let flat = app.session.execute("sheet.flat_pattern", &json!({})).unwrap();
assert_eq!(flat["cutouts"], json!([]));
assert_eq!(flat["pockets"].as_array().unwrap().len(), 2);
let doc = app.session.doc.to_json();
app.start("sheet.flat_pattern");
let mut dialog = app.dialog.clone().unwrap();
let Kind::Sheet(Sm::FlatPattern { data, .. }) = &mut dialog.kind else { panic!("flat dialog") };
*data = Some(Ok(flat));
let ctx = egui::Context::default();
let mut output = ctx.run_ui(egui::RawInput::default(), |ui| {
let painter = ui.ctx().layer_painter(egui::LayerId::new(egui::Order::Middle, egui::Id::new("coincident-pocket-test")));
assert!(overlay(&app, &painter, Rect::from_min_size(Pos2::ZERO, vec2(1400.0, 900.0)), &dialog));
});
output.textures_delta.clear();
let labels: Vec<_> = output
.shapes
.iter()
.filter_map(|shape| match &shape.shape {
egui::Shape::Text(text) if text.galley.text().contains("pocket:") => Some(text.galley.text()),
_ => None,
})
.collect();
assert_eq!(labels.len(), 1, "coincident depths must not overwrite one another");
assert!(labels[0].contains("Top pocket: 1.00 mm deep"));
assert!(labels[0].contains("Bottom pocket: 0.50 mm deep"));
assert!(labels[0].contains('\n'));
assert_eq!(app.session.doc.to_json(), doc);
}
#[test]
fn pocket_export_button_uses_the_picker_and_preserves_depth_layers() {
let mut h = crate::scenario::Harness::new();
for (command, params) in [
("sketch.create", json!({"plane":"XY","name":"Base"})),
("sketch.rectangle.two_point", json!({"p0":[0,0],"p1":[100,60]})),
("sketch.finish", json!({})),
("sheet.flange", json!({"sketch":"Base"})),
("sketch.create", json!({"plane":"XY","name":"Pocket"})),
("sketch.rectangle.two_point", json!({"p0":[20,20],"p1":[30,30]})),
("sketch.finish", json!({})),
("solid.extrude", json!({"sketch":"Pocket","distance":1,"operation":"cut"})),
] {
h.app.run(command, params).unwrap();
}
let path = h.dir.join("picked-pocket.dxf");
let chosen = path.to_string_lossy().into_owned();
h.app.services.pick_save = Some(Box::new(move |name, extensions| {
assert!(name.ends_with("-Body1.dxf"));
assert_eq!(extensions, &["dxf"]);
Some(chosen.clone())
}));
h.app.start("sheet.flat_pattern");
h.settle();
let undo = h.app.session.undo.len();
h.step(&json!({"widget":"Export DXF…"})).unwrap();
let exported = std::fs::read_to_string(&path).expect("actual Export DXF button writes the picker destination");
assert!(exported.contains("POCKET_BOTTOM_Z0.000000_TO_1.000000_MM"));
assert!(exported.contains("OUTLINE"));
assert_eq!(h.app.session.undo.len(), undo, "export does not alter the part");
assert!(h.app.dialog.is_some(), "export keeps the flat viewer open");
}
#[test]
#[cfg(not(target_arch = "wasm32"))]
fn bend_table_picker_writes_the_current_body() {
let mut app = plate();
app.run("sheet.flange", json!({"sketch": "Base"})).unwrap();
app.run("sheet.flange", json!({"edges": [[50, 0, 2.5]], "height": 20})).unwrap();
let body = app.session.model.state().sheets[0].body.clone();
let path = std::env::temp_dir().join(format!("solidcraft-bend-table-{}.csv", std::process::id()));
let output = path.to_string_lossy().into_owned();
let chosen = output.clone();
app.services.pick_save = Some(Box::new(move |_, extensions| {
assert_eq!(extensions, &["csv"]);
Some(chosen.clone())
}));
let undo = app.session.undo.len();
assert_eq!(export_flat(&mut app, &body, "csv"), format!("Saved {output}"));
let contents = std::fs::read_to_string(&path).unwrap();
std::fs::remove_file(&path).unwrap();
assert_eq!(contents.lines().count(), 2);
assert!(contents.contains(",90.000000000,up,2.500000000,"), "{contents}");
assert_eq!(app.session.undo.len(), undo);
}
/// The rule manager's shape selector: picked in the dialog, the shape reaches the rule and the part
/// made with it, and the dialog shows it the next time.
#[test]
fn rules_dialog_picks_the_corner_relief_shape() {
let mut h = crate::scenario::Harness::new();
h.app
.run(
"sheet.manage_rules",
json!({"name": "AL2", "thickness": "2 mm", "k_factor": 0.5, "bend_radius": "1 mm", "gap": "0.5 mm", "active": true}),
)
.unwrap();
h.app.run("sketch.create", json!({"plane": "XY", "name": "Base"})).unwrap();
h.app.run("sketch.rectangle.two_point", json!({"p0": [0, 0], "p1": [120, 90]})).unwrap();
h.app.run("sketch.finish", json!({})).unwrap();
h.app.run("sheet.flange", json!({"sketch": "Base"})).unwrap();
h.app.run("sheet.flange", json!({"edges": [[60, 0, 2], [120, 45, 2], [60, 90, 2], [0, 45, 2]], "height": 20, "angle": "72 deg"})).unwrap();
// The rounds in the base of the tray, and the shape the open dialog shows.
let rounds = |app: &SolveApp| {
let state = app.session.model.state();
state.sheets.last().map(|s| s.base.outer.segs.iter().filter(|g| matches!(g, solidcraft_engine::geom::Seg2::Arc { .. })).count())
};
let shown = |app: &SolveApp| match app.dialog.as_ref().map(|d| &d.kind) {
Some(Kind::Sheet(Sm::Rules { relief, .. })) => Some(*relief),
_ => None,
};
assert_eq!(rounds(&h.app), Some(0));
h.step(&json!({"start": "sheet.manage_rules"})).unwrap();
h.frames(3);
assert_eq!(shown(&h.app), Some(0), "a rule starts with the notch");
h.step(&json!({"click": {"handle": "dialog:Corner Relief Shape"}})).unwrap();
h.step(&json!({"click": {"handle": "dialog:Corner Relief Shape:Round"}})).unwrap();
assert_eq!(shown(&h.app), Some(1));
h.step(&json!({"widget": "OK"})).unwrap();
assert!(h.app.dialog.is_none(), "{:?}", h.app.dialog);
assert_eq!(h.app.session.doc.sheet_rule(None).corner_relief_shape, "round");
assert_eq!(rounds(&h.app), Some(4), "one round at each corner of the tray");
h.step(&json!({"start": "sheet.manage_rules"})).unwrap();
h.frames(3);
assert_eq!(shown(&h.app), Some(1), "the dialog shows the rule's shape");
}
#[test]
fn pocket_depth_labels_follow_inches_without_changing_flat_data() {
let mut app = plate();
app.run("document.units", json!({"units":"in"})).unwrap();
assert_eq!(super::pocket_label(&app, &json!({"side":"top","depth_mm":25.4*0.1234})).as_deref(), Some("Top pocket: 0.1234 in deep"));
assert!(super::pocket_label(&app, &json!({"side":"top","depth_mm":-1})).is_none());
}
/// Edges with an angle and/or a height of their own: the texts of the dialog's rows per edge
/// become `{point, angle?, height?}` edges while the others stay plain points; Edit Feature
/// brings them back and rebuilds the same flanges.
#[test]
fn edge_flanges_can_have_an_angle_and_a_height_of_their_own() {
let mut app = plate();
app.run("sheet.flange", json!({"sketch": "Base"})).unwrap();
let edges: Vec<Sel> = [[50.0, 0.0, 2.5], [50.0, 60.0, 2.5], [0.0, 30.0, 2.5], [100.0, 30.0, 2.5]]
.iter()
.filter_map(|p| edge_sel(&app.session, Vec3::new(p[0], p[1], p[2])))
.collect();
assert_eq!(edges.len(), 4);
let point = |i: usize| if let Sel::Edge { point, .. } = &edges[i] { *point } else { Vec3::ZERO };
app.session.selection = edges.clone();
app.start("sheet.flange");
let mut d = app.dialog.clone().unwrap();
if let Kind::Sheet(Sm::Flange { height, angle, own, .. }) = &mut d.kind {
*height = "20 mm".into();
*angle = "75 deg".into();
// The second edge: its own angle; the fourth: both; the third: texts left blank.
own.push((point(1), "100 deg".into(), String::new()));
own.push((point(3), "90 deg".into(), "15 mm".into()));
own.push((point(2), " ".into(), String::new()));
}
let c = apply_commands(&app, &d).unwrap();
assert_eq!(
c[0].1["edges"],
json!([pt(point(0)), {"point": pt(point(1)), "angle": "100 deg"}, pt(point(2)), {"point": pt(point(3)), "angle": "90 deg", "height": "15 mm"}]),
"no text or a blank one: a plain point"
);
run_all(&mut app, c);
let bends = app.session.execute("sheet.flat_pattern", &json!({})).unwrap()["bends"].clone();
let angles: Vec<f64> = bends.as_array().unwrap().iter().map(|b| b["angle_deg"].as_f64().unwrap().round()).collect();
assert_eq!(angles, [75.0, 100.0, 75.0, 90.0], "{bends}");
assert!(app.session.model.results.iter().all(|r| r.error.is_none()), "{:?}", app.session.model.results);
// Edit Feature: the edges and their own values come back, and OK rebuilds the same part.
let f = app.session.doc.features.last().unwrap().clone();
let mut e = edit_dialog(&app, f.id, None).unwrap();
assert_eq!(e.inputs[0].items.len(), 4);
let Kind::Sheet(Sm::Flange { own, .. }) = &e.kind else { panic!("not a flange dialog") };
assert_eq!(own.len(), 2, "{own:?}");
assert!(own.iter().any(|o| o.0.dist(point(1)) < 1e-9 && o.1 == "100 deg" && o.2.is_empty()), "{own:?}");
assert!(own.iter().any(|o| o.0.dist(point(3)) < 1e-9 && o.1 == "90 deg" && o.2 == "15 mm"), "{own:?}");
let volume = |app: &mut SolveApp| app.session.execute("inspect.measure", &json!({})).unwrap()["total"]["volume_mm3"].as_f64().unwrap();
let before = volume(&mut app);
let c = apply_commands(&app, &e).unwrap();
assert_eq!(c[0].0, "timeline.redefine");
assert_eq!(c[0].1["params"]["edges"][1], json!({"point": pt(point(1)), "angle": "100 deg"}));
assert_eq!(c[0].1["params"]["edges"][3]["height"], "15 mm");
run_all(&mut app, c);
let after = volume(&mut app);
assert!((after - before).abs() < 1e-6 * before, "{after} vs {before}");
// Taking edges out of the selection leaves each value with its edge.
e.inputs[0].items.remove(2);
e.inputs[0].items.remove(0);
let c = apply_commands(&app, &e).unwrap();
assert_eq!(
c[0].1["params"]["edges"],
json!([{"point": pt(point(1)), "angle": "100 deg"}, {"point": pt(point(3)), "angle": "90 deg", "height": "15 mm"}])
);
}
/// Convert takes a fixed face and, for a solid or shelled body, its bend edges; Edit Feature
/// brings both back.
#[test]
fn convert_takes_the_fixed_face_and_the_bend_edges() {
let mut s = Session::default();
s.execute("solid.box", &json!({"length": 100, "width": 60, "height": 30, "body_name": "Tray"})).unwrap();
s.execute("solid.shell", &json!({"faces": [[50, 30, 30]], "thickness": 2})).unwrap();
let mut app = SolveApp::new(s, Services::default());
app.start("sheet.convert");
let mut d = app.dialog.clone().unwrap();
assert_eq!(d.inputs.iter().map(|i| i.label).collect::<Vec<_>>(), ["Fixed Face", "Bend Edges"]);
assert!(apply_commands(&app, &d).is_err(), "nothing to convert without a face");
// The face alone is the plate conversion: no `bends`.
d.inputs[0].items = face_sel(&app.session, Vec3::new(50.0, 30.0, 0.0)).into_iter().collect();
assert!(apply_commands(&app, &d).unwrap()[0].1.get("bends").is_none());
let edges: Vec<Sel> = [[50.0, 0.0, 0.0], [100.0, 30.0, 0.0], [50.0, 60.0, 0.0], [0.0, 30.0, 0.0]]
.iter()
.filter_map(|p| edge_sel(&app.session, Vec3::new(p[0], p[1], p[2])))
.collect();
d.inputs[1].items = edges;
let c = apply_commands(&app, &d).unwrap();
assert_eq!(c[0].0, "sheet.convert");
assert_eq!(c[0].1["bends"], json!([[50.0, 0.0, 0.0], [100.0, 30.0, 0.0], [50.0, 60.0, 0.0], [0.0, 30.0, 0.0]]));
run_all(&mut app, c);
let bends = |app: &mut SolveApp| app.session.execute("sheet.flat_pattern", &json!({})).unwrap()["bends"].as_array().map(Vec::len);
assert_eq!(bends(&mut app), Some(4));
// Edit Feature: the face and the four edges are back in their rows, and OK rebuilds the sheet.
let f = app.session.doc.features.last().unwrap().clone();
let e = edit_dialog(&app, f.id, None).unwrap();
assert_eq!((e.inputs[0].items.len(), e.inputs[1].items.len()), (1, 4));
let c = apply_commands(&app, &e).unwrap();
assert_eq!(c[0].0, "timeline.redefine");
assert_eq!(c[0].1["params"]["bends"].as_array().map(Vec::len), Some(4));
run_all(&mut app, c);
assert_eq!(bends(&mut app), Some(4));
assert!(app.session.model.results.iter().all(|r| r.error.is_none()), "{:?}", app.session.model.results);
}