finished migrating all shape unit tests over to mocha. continued working on context tracing support

test/unit/shapes/Polygon-test.js

@@ -0,0 +1,39 @@
+suite('Polygon', function() {
+    test('add polygon', function() {
+        var stage = buildStage();
+
+        var layer = new Kinetic.Layer();
+
+        var points = [{
+            x: 73,
+            y: 192
+        }, {
+            x: 73,
+            y: 160
+        }, {
+            x: 340,
+            y: 23
+        }, {
+            x: 500,
+            y: 109
+        }, {
+            x: 499,
+            y: 139
+        }, {
+            x: 342,
+            y: 93
+        }];
+
+        var poly = new Kinetic.Polygon({
+            points: points,
+            fill: 'green',
+            stroke: 'blue',
+            strokeWidth: 5
+        });
+
+        layer.add(poly);
+        stage.add(layer);
+        
+        assert.equal(poly.getClassName(), 'Polygon');
+    });
+});