katana-render-runtime 0.3.1

Versioned render runtime for KatanA diagrams and math (Mermaid, Draw.io, ZenUML, PlantUML, MathJax).
Documentation 
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use super::DrawioJsRuntimeOps;
use crate::markdown::color_preset::DiagramColorPreset;

#[test]
fn fake_bundle_applies_named_style_shadow_and_padding() {
    let path = temp_runtime_path("kdr-drawio-shadow-unit");
    assert!(std::fs::write(&path, fake_bundle()).is_ok());

    let source = r#"<mxGraphModel><root><mxCell id="cell" style="rounded=1;yellow" vertex="1"><mxGeometry x="0" y="0" width="20" height="10" as="geometry"/></mxCell></root></mxGraphModel>"#;
    let rendered = DrawioJsRuntimeOps::render(source, &path, DiagramColorPreset::dark());

    assert!(
        rendered
            .as_ref()
            .is_ok_and(|svg| svg.contains("drop-shadow"))
    );
    assert!(
        rendered
            .as_ref()
            .is_ok_and(|svg| svg.contains(r#"width="31px""#))
    );
    assert!(
        rendered
            .as_ref()
            .is_ok_and(|svg| svg.contains(r#"height="22px""#))
    );
}

fn temp_runtime_path(prefix: &str) -> std::path::PathBuf {
    std::env::temp_dir().join(format!("{prefix}-{}.js", std::process::id()))
}

fn fake_bundle() -> &'static str {
    FAKE_BUNDLE
}

const FAKE_BUNDLE: &str = r#"
function Graph() {}
const Editor = {
  convertHtmlToText(value) {
    return String(value);
  },
};
function GraphViewer() {}
GraphViewer.createViewerForElement = function createViewerForElement(_container, callback) {
  const svg = document.createElementNS("http://www.w3.org/2000/svg", "svg");
  svg.setAttribute("width", "20");
  svg.setAttribute("height", "10");
  svg.setAttribute("viewBox", "0 0 20 10");
  const group = document.createElementNS("http://www.w3.org/2000/svg", "g");
  group.setAttribute("data-cell-id", "cell");
  const shape = document.createElementNS("http://www.w3.org/2000/svg", "g");
  shape.setAttribute("transform", "translate(0.5,0.5)");
  const rect = document.createElementNS("http://www.w3.org/2000/svg", "rect");
  rect.setAttribute("x", "0");
  rect.setAttribute("y", "0");
  rect.setAttribute("width", "20");
  rect.setAttribute("height", "10");
  shape.appendChild(rect);
  group.appendChild(shape);
  svg.appendChild(group);
  callback({
    graph: {
      getSvg() {
        return svg;
      },
    },
  });
};
"#;