using Xunit; namespace Kbx.Tests.Providers; public sealed class KrxProviderPolicyTests { [Fact] public void Approved_service_must_stay_inside_krx_https_domain() { var ok = new Uri("https://sample.krx.co.kr/service"); Assert.Equal(Uri.UriSchemeHttps, ok.Scheme); Assert.EndsWith(".krx.co.kr", ok.Host, StringComparison.OrdinalIgnoreCase); } }