public void Feeder_RegisterMethodTest()
        {
            var feeder = new FeedManager();
            var provider = new ProviderMock(new Uri("http://feeds.feedburner.com/TEDTalks_video"), new FillerMock(null));

            bool canRegister = feeder.Register(provider);
            Assert.IsTrue(canRegister);

            bool canRegisterAgain = feeder.Register(provider);
            Assert.IsFalse(canRegisterAgain);

            bool isContains = feeder.Contains(provider);
            Assert.IsTrue(isContains);
        }
        public void Feeder_DisposeMethodTest()
        {
            var feeder = new FeedManager();
            var provider = new ProviderMock(new Uri("http://feeds.feedburner.com/TEDTalks_video"), new FillerMock(null));

            feeder.Register(provider);
            (feeder as IDisposable).Dispose();

            bool isContains = feeder.Contains(provider);
            Assert.IsFalse(isContains);
        }