aspnetcore integration test - startup

teststartup.cs

public class Startup
{
    ...

    public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
    {
	    ...

	    app.UseIdentity();

	    ConfigureAdditionalMiddleware(app);

	    app.UseMvc();
    }

    protected virtual void ConfigureAdditionalMiddleware(IApplicationBuilder app)
    {
    }
}

public class TestServerStartup : Startup
{
    public TestServerStartup(IHostingEnvironment env) : base(env)
    {
    }

    protected override void ConfigureAdditionalMiddleware(IApplicationBuilder app)
    {
	    app.UseMiddleware<TestMiddleware.AuthenticatedTestRequestMiddleware>();
    }
}