csharp
[Fact]
public async Task HomepageDirectLinkRedirectsToRootAsync()
{
    // arrange
    await PrepareAsync(); //<-- make sure site is booted, make sure indexes are built-up
    IUmbracoContextFactory umbracoContextFactory = ServiceProvider.GetRequiredService<IUmbracoContextFactory>();
    var documentNavigationService = this.ServiceProvider.GetRequiredService<IDocumentNavigationQueryService>();
    using Umbraco.Cms.Core.UmbracoContextReference cref = umbracoContextFactory.EnsureUmbracoContext();

    documentNavigationService.TryGetRootKeysOfType(WebsiteRoot.ModelTypeAlias, out var websiteKeys);
    documentNavigationService.TryGetChildrenKeysOfType(websiteKeys.First(), HomePage.ModelTypeAlias, out var homepageKeys);
    WebsiteRoot? root = await cref.UmbracoContext.Content.GetByIdAsync(websiteKeys.First()) as WebsiteRoot;
    HomePage? homepage = await cref.UmbracoContext.Content.GetByIdAsync(homepageKeys.First()) as HomePage;

    HttpClient nonRedirectClient = WebsiteFactory.CreateClient(new WebApplicationFactoryClientOptions { AllowAutoRedirect = false });

    // act
    HttpResponseMessage response = await nonRedirectClient.GetAsync(homepage!.Url());

    // assert
    response.StatusCode.ShouldBe(HttpStatusCode.MovedPermanently);
    response.Headers.Location.ShouldNotBeNull();
    response.Headers.Location.ShouldBe(new Uri(root!.Url(), UriKind.RelativeOrAbsolute));
}