bugs fixes

test/unit/shapes/Transformer-test.js

@@ -15,9 +15,10 @@ suite('Transformer', function() {
     });
     layer.add(rect);
 
-    var tr = new Konva.Transformer();
+    var tr = new Konva.Transformer({
+      node: rect
+    });
     layer.add(tr);
-    tr.attachTo(rect);
 
     layer.draw();
     assert.equal(tr.getClassName(), 'Transformer');
@@ -26,6 +27,12 @@ suite('Transformer', function() {
     assert.equal(tr.y(), rect.y());
     assert.equal(tr.width(), rect.width());
     assert.equal(tr.height(), rect.height());
+
+    // manual check of correct position of node
+    var handler = tr.findOne('.bottom-right');
+    var pos = handler.getAbsolutePosition();
+    assert.equal(pos.x, rect.x() + rect.width());
+    assert.equal(pos.y, rect.y() + rect.height());
   });
 
   test('try to fit simple rectangle', function() {
@@ -541,7 +548,7 @@ suite('Transformer', function() {
     assert.equal(tr.rotation(), 0);
   });
 
-  test('fit group', function() {
+  test.only('fit group', function() {
     var stage = addStage();
     var layer = new Konva.Layer();
     stage.add(layer);
@@ -596,4 +603,43 @@ suite('Transformer', function() {
     assert.equal(tr.width(), 200);
     assert.equal(tr.height(), 100);
   });
+
+  test('toJSON should not save attached node and children', function() {
+    var stage = addStage();
+    var layer = new Konva.Layer();
+    stage.add(layer);
+
+    var rect = new Konva.Rect({
+      x: 100,
+      y: 60,
+      draggable: true,
+      width: 100,
+      height: 100,
+      fill: 'yellow'
+    });
+    layer.add(rect);
+
+    var tr = new Konva.Transformer();
+    layer.add(tr);
+    tr.attachTo(rect);
+
+    layer.draw();
+
+    var json = tr.toJSON();
+    var object = JSON.parse(json);
+
+    assert.equal(object.attrs.node, undefined);
+    assert.equal(object.children, undefined);
+  });
+
+  test('make sure we can work without inner node', function() {
+    var stage = addStage();
+    var layer = new Konva.Layer();
+    stage.add(layer);
+
+    var tr = new Konva.Transformer();
+    layer.add(tr);
+
+    layer.draw();
+  });
 });