public FactsBase()
            {
                _reportService    = new Mock <IReportService>();
                _dateTimeProvider = new Mock <IDateTimeProvider>();
                _dateTimeProvider
                .SetupGet(st => st.UtcNow)
                .Returns(() => DateTime.UtcNow);

                _target = new JsonStatisticsService(_reportService.Object, _dateTimeProvider.Object);
            }
            public FactsBase()
            {
                _reportService = new Mock <IReportService>();

                _target = new JsonStatisticsService(_reportService.Object);
            }