fix: broken test, link style

packages/mermaid/src/diagrams/flowchart/flowDb.ts

@@ -205,6 +205,13 @@ export const updateLink = function (positions: ('default' | number)[], style: st
       //   style.push('fill:none');
       // }
       edges[pos].style = style;
+      // if edges[pos].style does have fill not set, set it to none
+      if (
+        (edges[pos]?.style?.length ?? 0) > 0 &&
+        !edges[pos]?.style?.some((s) => s?.startsWith('fill'))
+      ) {
+        edges[pos]?.style?.push('fill:none');
+      }
     }
   });
 };

packages/mermaid/src/rendering-util/rendering-elements/edges.js

@@ -583,7 +583,7 @@ export const insertEdge = function (elem, edge, clusterDb, diagramType, startNod
       // .attr('d', lineFunction(lineData))
       .attr('id', edge.id)
       .attr('class', ' ' + strokeClasses + (edge.classes ? ' ' + edge.classes : ''))
-      .attr('style', edge.style);
+      .attr('style', edge.style ? edge.style.reduce((acc, style) => acc + ';' + style, '') : '');
     let d = svgPath.attr('d');
     svgPath.attr('d', d);
     elem.node().appendChild(svgPath.node());
@@ -593,7 +593,7 @@ export const insertEdge = function (elem, edge, clusterDb, diagramType, startNod
       .attr('d', linePath)
       .attr('id', edge.id)
       .attr('class', ' ' + strokeClasses + (edge.classes ? ' ' + edge.classes : ''))
-      .attr('style', edge.style);
+      .attr('style', edge.style ? edge.style.reduce((acc, style) => acc + ';' + style, '') : '');
   }
   // DEBUG code, adds a red circle at each edge coordinate
   // cornerPoints.forEach((point) => {

packages/mermaid/src/tests/MockedD3.ts

@@ -105,6 +105,7 @@ export class MockedD3 {
   // Real implementation returns an HTML Element
   public node = vi.fn().mockImplementation(() => {
     const topElem = this._containingHTMLdoc.createElement('svg');
+    topElem.getBBox = this.getBBox;
     const elem_svgChild = this._containingHTMLdoc.createElement('svg'); // another svg element
     topElem.appendChild(elem_svgChild);
     return topElem;

vite.config.ts

@@ -9,7 +9,7 @@ export default defineConfig({
     extensions: ['.js'],
     alias: {
       // Define your alias here
-      '$root/*': path.resolve(__dirname, 'src/*'),
+      $root: path.resolve(__dirname, 'packages/mermaid/src'),
     },
   },
   plugins: [