[convertEllipseToCircle] fix ellipse without radius

TrySound · TrySound · commit 7f4e05297ade · 2021-02-20T12:50:36.000+03:00
Ref #1264
diff --git a/plugins/convertEllipseToCircle.js b/plugins/convertEllipseToCircle.js
@@ -18,8 +18,8 @@ exports.description = 'converts non-eccentric <ellipse>s to <circle>s';
  */
 exports.fn = function(item) {
     if (item.isElem('ellipse')) {
-      var rx = item.attr('rx').value || 0;
-      var ry = item.attr('ry').value || 0;
+      var rx = item.hasAttr('rx') && item.attr('rx').value || 0;
+      var ry = item.hasAttr('ry') && item.attr('ry').value || 0;
 
       if (rx === ry ||
           rx === 'auto' || ry === 'auto' // SVG2
diff --git a/test/plugins/convertEllipseToCircle.01.svg b/test/plugins/convertEllipseToCircle.01.svg
@@ -2,6 +2,7 @@
     <ellipse rx="5" ry="5"/>
     <ellipse rx="auto" ry="5"/>
     <ellipse rx="5" ry="auto"/>
+    <ellipse />
 </svg>
 
 @@@
@@ -10,4 +11,5 @@
     <circle r="5"/>
     <circle r="5"/>
     <circle r="5"/>
+    <circle r="0"/>
 </svg>
