Files
figcraft/crates/mcp/tests/export_hidden_roots.rs
2026-10-15 11:48:39 +02:00

48 lines
2.1 KiB
Rust

//! Hidden top-level layers in an export take no room in the image (issue #447).
#![allow(clippy::unwrap_used, clippy::expect_used, clippy::panic)]
mod common;
use common::{Client, png_dims};
use serde_json::{Value, json};
fn dimensions(result: Value) -> (u32, u32) {
assert_eq!(result["isError"], false, "{result}");
let image = result["content"].as_array().unwrap().iter().find(|block| block["type"] == "image").unwrap();
png_dims(image["data"].as_str().unwrap())
}
#[test]
fn hidden_root_does_not_expand_export() {
let mut client = Client::new();
let visible = client.create(json!({
"type":"frame", "x":0, "y":0, "width":100, "height":100,
"props":{"fill":"#FF0000"}
}));
let hidden = client.create(json!({
"type":"frame", "x":900, "y":0, "width":300, "height":300,
"props":{"visible":false}
}));
assert_eq!(client.node(&hidden)["visible"], false);
let control = dimensions(client.call("export", json!({"ids":[visible], "format":"png", "size":"200w"})));
assert_eq!(control, (200, 200));
let mixed = dimensions(client.call("export", json!({"ids":[visible, hidden], "format":"png", "size":"200w"})));
assert_eq!(mixed, control, "hidden roots must not enlarge the painted area");
let natural = dimensions(client.call("export", json!({"ids":[visible, hidden], "format":"png"})));
assert_eq!(natural, (100, 100));
client.ok("select", json!({"ids":[visible, hidden]}));
let selected = dimensions(client.call("export", json!({"format":"png", "size":"200w"})));
assert_eq!(selected, (200, 200));
client.ok("select", json!({"ids":[]}));
let page = dimensions(client.call("export", json!({"format":"png"})));
assert_eq!(page, (100, 100));
// Controls: the bounding-box option and a hidden-only export keep their areas.
let boxed = dimensions(client.call("export", json!({"ids":[visible, hidden], "format":"png", "includeBoundingBox":true})));
assert_eq!(boxed, (1200, 300));
let alone = dimensions(client.call("export", json!({"ids":[hidden], "format":"png"})));
assert_eq!(alone, (300, 300));
}