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>()); }