public void EndpointCustomizationTest()
{
IRegionEndpointProvider provider = new RegionEndpointProviderV2();
var useast1 = provider.GetRegionEndpoint("us-east-1");
var uswest2 = provider.GetRegionEndpoint("us-west-2");
var euwest1 = provider.GetRegionEndpoint("eu-west-1");
Assert.Equal("application-autoscaling.us-east-1.amazonaws.com", useast1.GetEndpointForService("application-autoscaling", false).Hostname);
Assert.Equal("application-autoscaling.us-west-2.amazonaws.com", uswest2.GetEndpointForService("application-autoscaling", false).Hostname);
Assert.Equal("application-autoscaling.eu-west-1.amazonaws.com", euwest1.GetEndpointForService("application-autoscaling", false).Hostname);
var apne2 = provider.GetRegionEndpoint("ap-northeast-2");
Assert.Equal("sts.amazonaws.com", apne2.GetEndpointForService("sts", false).Hostname);
}