fixed #363

src/shapes/Line.js

@@ -43,16 +43,17 @@
          */
         setPoints: function(val) {
             this.setAttr('points', Kinetic.Type._getPoints(val));
+        },
+        /**
+         * get points array
+         * @name getPoints
+         * @methodOf Kinetic.Line.prototype
+         */
+         // NOTE: cannot use getter method because we need to return a new
+         // default array literal each time because arrays are modified by reference
+        getPoints: function() {
+            return this.attrs.points || [];
         }
     };
     Kinetic.Global.extend(Kinetic.Line, Kinetic.Shape);
-
-    // add getters setters
-    Kinetic.Node.addGetter(Kinetic.Line, 'points', []);
-
-    /**
-     * get points array
-     * @name getPoints
-     * @methodOf Kinetic.Line.prototype
-     */
 })();

tests/js/unit/shapes/lineTests.js

@@ -49,6 +49,41 @@ Test.Modules.LINE = {
         
         test(line.getShapeType() === 'Line', 'shape type should be Line');
     },
+    'test default ponts array for two lines': function(containerId) {
+        var stage = new Kinetic.Stage({
+            container: containerId,
+            width: 578,
+            height: 200
+        });
+        var layer = new Kinetic.Layer();
+
+        var line = new Kinetic.Line({
+            stroke: 'blue',
+            strokeWidth: 20,
+            lineCap: 'round',
+            lineJoin: 'round',
+            draggable: true
+        });
+
+        var redLine = new Kinetic.Line({
+            x: 50,
+            stroke: 'red',
+            strokeWidth: 20,
+            lineCap: 'round',
+            lineJoin: 'round',
+            draggable: true
+        });
+
+        line.setPoints([0,1,2,3]);
+        redLine.setPoints([4,5,6,7]);
+
+        layer.add(line).add(redLine);
+        stage.add(layer);
+
+        test(line.getPoints()[0].x === 0, 'line points is wrong');
+        test(redLine.getPoints()[0].x === 4, 'redLine points is wrong');
+        
+    },
     'add dashed line': function(containerId) {
         var stage = new Kinetic.Stage({
             container: containerId,