it('should return a copy of the data', () => {
const item = new ObservableJSON();
item.set('foo', { bar: 1 });
const value = item.toJSON();
value['bar'] = 2;
expect((item.get('foo') as any)['bar']).to.equal(1);
});
it('should serialize the model to JSON', () => {
const item = new ObservableJSON();
item.set('foo', 1);
expect(item.toJSON()['foo']).to.equal(1);
});