Enable trace for test app (#178)

Author: pakrym

sample/ApplicationInsightsHostingStartupSample/Startup.cs

@@ -24,7 +24,9 @@ public void ConfigureServices(IServiceCollection services)
 
         public void ConfigureJavaScript(IApplicationBuilder app)
         {
+            Console.WriteLine("ConfigureJavaScript 1");
             app.UseMvcWithDefaultRoute();
+            Console.WriteLine("ConfigureJavaScript 2");
         }
 
         public void ConfigureDefaultLogging(IApplicationBuilder app, ILoggerFactory loggerFactory)
@@ -73,11 +75,12 @@ private static void ConfigureLoggingMiddleware(IApplicationBuilder app, ILoggerF
 
         public static void Main(string[] args)
         {
+            Console.WriteLine("Main 1");
             var config = new ConfigurationBuilder()
                 .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
                 .AddCommandLine(args)
                 .Build();
-
+            Console.WriteLine("Main 2");
             var host = new WebHostBuilder()
                 .UseConfiguration(config)
                 .ConfigureLogging((hostingContext, builder) =>
@@ -89,7 +92,7 @@ public static void Main(string[] args)
                 .UseStartup<Startup>()
                 .UseContentRoot(Directory.GetCurrentDirectory())
                 .Build();
-
+            Console.WriteLine("Main 3");
             host.Run();
         }
     }

src/Microsoft.AspNetCore.ApplicationInsights.HostingStartup/ApplicationInsightsLoggerStartupFilter.cs

@@ -13,19 +13,27 @@ internal class ApplicationInsightsLoggerStartupFilter : IStartupFilter
     {
         public Action<IApplicationBuilder> Configure(Action<IApplicationBuilder> next)
         {
+            Console.WriteLine("ApplicationInsightsLoggerStartupFilter 1");
             return builder =>
             {
+                Console.WriteLine("ApplicationInsightsLoggerStartupFilter 2");
                 var loggerFactory = builder.ApplicationServices.GetService<ILoggerFactory>();
 
                 // We need to disable filtering on logger, filtering would be done by LoggerFactory
                 var loggerEnabled = true;
 
+                Console.WriteLine("ApplicationInsightsLoggerStartupFilter 3");
+
                 loggerFactory.AddApplicationInsights(
                     builder.ApplicationServices,
                     (s, level) => loggerEnabled,
                     () => loggerEnabled = false);
 
+                Console.WriteLine("ApplicationInsightsLoggerStartupFilter 4");
+
                 next(builder);
+
+                Console.WriteLine("ApplicationInsightsLoggerStartupFilter 5");
             };
         }
     }

src/Microsoft.AspNetCore.ApplicationInsights.HostingStartup/ApplicationInsightsStartupLoader.cs

@@ -29,9 +29,13 @@ public class ApplicationInsightsHostingStartup : IHostingStartup
         /// <param name="builder"></param>
         public void Configure(IWebHostBuilder builder)
         {
+            Console.WriteLine("ApplicationInsightsHostingStartup 1");
             builder.UseApplicationInsights();
 
+            Console.WriteLine("ApplicationInsightsHostingStartup 2");
             builder.ConfigureServices(InitializeServices);
+
+            Console.WriteLine("ApplicationInsightsHostingStartup 3");
         }
 
 
@@ -41,18 +45,26 @@ public void Configure(IWebHostBuilder builder)
         /// <param name="services">The <see cref="IServiceCollection"/> associated with the application.</param>
         private void InitializeServices(IServiceCollection services)
         {
+            Console.WriteLine("ApplicationInsightsHostingStartup 4");
             services.AddSingleton<IStartupFilter, ApplicationInsightsLoggerStartupFilter>();
             services.AddSingleton<ITagHelperComponent, JavaScriptSnippetTagHelperComponent>();
 
+            Console.WriteLine("ApplicationInsightsHostingStartup 5");
             var home = Environment.GetEnvironmentVariable("HOME");
             if (!string.IsNullOrEmpty(home))
             {
+                Console.WriteLine("ApplicationInsightsHostingStartup 6");
                 var settingsFile = Path.Combine(home, "site", "diagnostics", ApplicationInsightsSettingsFile);
                 var configurationBuilder = new ConfigurationBuilder()
                     .AddJsonFile(settingsFile, optional: true, reloadOnChange: true);
 
-                services.AddLogging(builder => builder.AddConfiguration(configurationBuilder.Build().GetSection("Logging")));
+                Console.WriteLine("ApplicationInsightsHostingStartup 7");
+                var config = configurationBuilder.Build().GetSection("Logging");
+
+                Console.WriteLine("ApplicationInsightsHostingStartup 8");
+                services.AddLogging(builder => builder.AddConfiguration(config));
             }
+            Console.WriteLine("ApplicationInsightsHostingStartup 9");
         }
     }
 }