Endpoint is null when accessed in middleware during asp.net core 3.1 integration test - asp.net-core

Question

I run integration tests for my asp.net core application, the call passes from multiple middle-wares but stops at one of them which has the following line :
var endpoint = context.Features.Get<IEndpointFeature>()?.Endpoint;
var attribute = endpoint?.Metadata.GetMetadata<AllowAHeader>();
The endpoint is null.
public class CustomWebApplicationFactory<TStartup> : WebApplicationFactory<TStartup>
where TStartup : class
{
protected override IHostBuilder CreateHostBuilder()
{
var builder = Host.CreateDefaultBuilder()
.ConfigureWebHostDefaults(x =>
{
x.UseStartup<TStartup>().UseTestServer();
});
return builder;
}
protected override void ConfigureWebHost(IWebHostBuilder builder)
{
var configuration = new ConfigurationBuilder()
.AddJsonFile("appsettings.json")
.Build();
builder.ConfigureTestServices(services =>
{
services.RemoveAll<DbContext>();
services.RemoveAll<DbContextOptions>();
foreach (var option in services.Where(s =>
s.ServiceType.BaseType ==
typeof(DbContextOptions)).ToList())
{
services.Remove(option);
}
services.AddDbContext<DbContext>(options =>
{
options.UseInMemoryDatabase("Testing");
});
});
}
}
Here is the test
public class ClientTests : IClassFixture<CustomWebApplicationFactory<TestStartup>>
{
private readonly HttpClient _client;
public ClientTests(CustomWebApplicationFactory<TestStartup> customWebApplicationFactory)
{
_client = customWebApplicationFactory.CreateClient();
}
[Fact]
public async Task GetClients()
{
_client.DefaultRequestHeaders.Add("X-Integration-Testing", "True");
_client.DefaultRequestHeaders.Add("X-Integration-Authroize", "Basic");
var result = await _client.PostAsync("v1/client", null);
}
}
The TestStartup :
public class TestStartup : Startup
{
public TestStartup(IConfiguration configuration)
: base(configuration)
{
}
protected override void ConfigureMiddlewareForIntegrationTest(IApplicationBuilder app)
{
app.UseMiddleware<AuthenticatedTestRequestMiddleware>();
}
}
public class AuthenticatedTestRequestMiddleware
{
public const string TestingHeader = "X-Integration-Testing";
public const string TestingHeaderAuthValueValue = "X-Integration-Authroize";
private readonly RequestDelegate _next;
public AuthenticatedTestRequestMiddleware(RequestDelegate next)
{
_next = next;
}
public async Task Invoke(HttpContext context)
{
if (context.Request.Headers.Keys.Contains(TestingHeader))
{
if (context.Request.Headers.Keys.Contains(TestingHeaderAuthValueValue))
{
var encoded = "Basic " + System.Convert.ToBase64String(System.Text.Encoding.GetEncoding("ISO-8859-1").GetBytes("user" + ":" + "123456"));
context.Request.Headers.Add("Authorization", encoded);
}
}
}
}

Answer 1

In ConfigureWebHostDefaults add:
x.UseHttpSys(opt =>
opt.RequestQueueMode = RequestQueueMode.Create;
)
Have not figured out exactly why it's needed, but I'm guessing it's a bug being the value of RequestQueueMode is 0 by default, same as RequestQueueMode.Create's value.