public async Task GetEpisodeStatisticResponseAsync_Should_Return_Statistic_By_Given_PodcastId_And_EpisodeStatisticFilter()
        {
            StatisticClientMock statisticClientMock = StatisticClientMock.Create();

            statisticClientMock.RestApiClientMock
            .Setup(client => client.GetApiResponseAsync <Statistic>(
                       It.IsAny <string>(),
                       It.IsAny <IList <KeyValuePair <string, string> > >(),
                       It.IsAny <IDictionary <string, string> >()))
            .ReturnsAsync(() => new ApiResponse <Statistic>()
            {
                Model = new Statistic()
            });

            var queryParams = EpisodeStatisticFilter.ToQueryParams();

            Statistic statistic = await statisticClientMock.GetEpisodeStatisticAsync(PodcastId, EpisodeStatisticFilter);

            statisticClientMock.RestApiClientMock.Verify(client => client.GetApiResponseAsync <Statistic>(
                                                             It.Is <string>(url => url == PodcastStatisticEpisodeUrl),
                                                             It.Is <IList <KeyValuePair <string, string> > >(keyValues => keyValues.Any(pair => queryParams.Contains(pair))),
                                                             It.Is <IDictionary <string, string> >(keyValues => keyValues == null)), Times.Once);

            Assert.NotNull(statistic);
        }