public void AddEnvActuator_IWebHostBuilder()
{
var hostBuilder = new WebHostBuilder().Configure((b) => { });
var host = hostBuilder.AddEnvActuator().Build();
var managementEndpoint = host.Services.GetServices <EnvEndpoint>();
var filter = host.Services.GetServices <IStartupFilter>().FirstOrDefault();
Assert.Single(managementEndpoint);
Assert.NotNull(filter);
Assert.IsType <AllActuatorsStartupFilter>(filter);
}