toImage improvement

test/unit/Node-test.js

@@ -933,6 +933,39 @@ suite('Node', function() {
         showHit(layer);
     });
 
+    // ======================================================
+    test('node caching width minimal configuration', function(done) {
+        var stage = addStage();
+        var layer = new Kinetic.Layer();
+        stage.add(layer);
+
+        var rect = new Kinetic.Rect({
+            width : 50,
+            height : 50,
+            fill: 'green',
+            stroke: 'blue',
+            strokeWidth: 5,
+            draggable: true
+        });
+
+        rect.toImage({
+            callback: function(imageObj) {
+                assert.equal(Kinetic.Util._isElement(imageObj), true);
+                var cachedShape = new Kinetic.Image({
+                    image: imageObj,
+                    draggable: true,
+                    stroke: 'red',
+                    strokeWidth: 5
+                });
+
+                layer.add(cachedShape);
+                layer.draw();
+                done();
+            }
+        });
+
+        showHit(layer);
+    });
     // ======================================================
     test('hide group', function() {
         var stage = addStage();