public void AddBandwidthTest()
        {
            var context = new MockContext <IServiceCollection>();

            context.Arrange(s => s.Add(The <ServiceDescriptor> .Is(d => CheckServiceDescriptor(d))));
            var serviceCollection = new MockServiceCollection(context);

            serviceCollection.AddBandwidth(new BandwidthAuthData
            {
                UserId    = "userId",
                ApiToken  = "apiToken",
                ApiSecret = "apiSecret"
            });
            Assert.True(serviceCollection.Count > 0);
            Assert.NotNull(serviceCollection.FirstOrDefault(d => d.ServiceType == typeof(IMemoryCache)));
        }