add test to check deserialized piskel contains valid frames

test/js/utils/serialization/SerializerTest.js

@@ -7,10 +7,41 @@ describe("Serialization/Deserialization test", function() {
       }
     };
   });
+
   afterEach(function() {
     delete pskl.app.piskelController;
   });
 
+  if("serializes frames correctly", function () {
+    // Create piskel.
+    var descriptor = new pskl.model.piskel.Descriptor('piskelName', 'piskelDesc');
+    var piskel = new pskl.model.Piskel(1, 1, 1, descriptor);
+    // Add layer.
+    piskel.addLayer(new pskl.model.Layer('layer1'));
+    // Add frame.
+    piskel.getLayerAt(0).addFrame(pskl.model.Frame.fromPixelGrid([
+      ["red", "black"],
+      ["blue", "green"]
+    ]));
+
+    // Verify the frame is successfully added in the layer.
+    expect(piskel.getLayerAt(0).getFrames().length).toBe(1);
+
+    var serializedPiskel = pskl.utils.serialization.Serializer.serialize(piskel);
+
+    var deserializer = pskl.utils.serialization.Deserializer;
+    deserializer.deserialize(JSON.parse(serializedPiskel), function (p) {
+      // Check the frame has been properly deserialized
+      expect(p.getLayerAt(0).getFrames().length).toBe(1);
+      var frame = p.getLayerAt(0).getFrameAt(0);
+      test.testutils.frameEqualsGrid(flattened, [
+        ["red", "black"],
+        ["blue", "green"]
+      ]);
+      done();
+    });
+  })
+
   it("serializes layer opacity", function(done) {
     var descriptor = new pskl.model.piskel.Descriptor('piskelName', 'piskelDesc');
     var piskel = new pskl.model.Piskel(1, 1, 1, descriptor);
@@ -35,7 +66,10 @@ describe("Serialization/Deserialization test", function() {
       expect(p.getLayerAt(0).getOpacity()).toBe(0);
       expect(p.getLayerAt(1).getOpacity()).toBe(0.3);
       expect(p.getLayerAt(2).getOpacity()).toBe(0.9);
+
+      // Check the serialization was successful
+      expect(p.getLayerAt(0).getFrames().length).toBe(1);
       done();
-    })
+    });
   });
 });