public void AddConfigServer_New_WebHostBuilder_AddsConfigServer()
        {
            // Arrange
            var hostBuilder = new WebHostBuilder().ConfigureAppConfiguration(builder => builder.AddInMemoryCollection(quickTests)).UseStartup <TestConfigServerStartup>();

            // Act
            hostBuilder.AddConfigServer();
            var config = hostBuilder.Build().Services.GetServices <IConfiguration>().SingleOrDefault() as ConfigurationRoot;

            // Assert
            Assert.Single(config.Providers.OfType <CloudFoundryConfigurationProvider>());
            Assert.Single(config.Providers.OfType <ConfigServerConfigurationProvider>());
        }