yep

Tests/AcceptanceTests/TestSetup/GuestTestFixture.cs

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+using Microsoft.Extensions.Configuration;
+
+namespace Shogi.AcceptanceTests.TestSetup
+{
+	/// <summary>
+	/// Acceptance Test fixture for tests which assert features for Microsoft accounts.
+	/// </summary>
+	public class GuestTestFixture : IAsyncLifetime, IDisposable
+	{
+		private bool disposedValue;
+
+		public GuestTestFixture()
+		{
+			Configuration = new ConfigurationBuilder()
+				.AddJsonFile("appsettings.json")
+				//.AddEnvironmentVariables()
+				.Build();
+
+			Service = new HttpClient
+			{
+				BaseAddress = new Uri(Configuration["ServiceUrl"], UriKind.Absolute)
+			};
+
+		}
+
+		public IConfiguration Configuration { get; private set; }
+
+		public HttpClient Service { get; }
+
+		public async Task InitializeAsync()
+		{
+			// Log in as a guest account.
+			var loginResponse = await Service.GetAsync(new Uri("User/LoginAsGuest", UriKind.Relative));
+			loginResponse.EnsureSuccessStatusCode();
+		}
+
+		protected virtual void Dispose(bool disposing)
+		{
+			if (!disposedValue)
+			{
+				if (disposing)
+				{
+					Service.Dispose();
+				}
+
+				disposedValue = true;
+			}
+		}
+
+		public Task DisposeAsync()
+		{
+			Dispose(true);
+			return Task.CompletedTask;
+		}
+
+		public void Dispose()
+		{
+			Dispose(disposing: true);
+			GC.SuppressFinalize(this);
+		}
+	}
+}