enable internet server for development

Author: tian-lt

src/Calculator/Package.appxmanifest

@@ -63,5 +63,6 @@
     </Applications>
     <Capabilities>
         <Capability Name="internetClient" />
+        <Capability Name="internetClientServer"/>
     </Capabilities>
 </Package>

src/CalculatorUITestFramework/MockedCurrencyServer.cs

@@ -40,7 +40,15 @@ private void DisposeImpl()
         private static void OnGetContext(IAsyncResult result)
         {
             var listener = (HttpListener)result.AsyncState;
-            var context = listener.EndGetContext(result);
+            HttpListenerContext context;
+            try
+            {
+                context = listener.EndGetContext(result);
+            }
+            catch (HttpListenerException)
+            {
+                return;
+            }
             var request = context.Request;
             var response = context.Response;
             if (request.HttpMethod == "GET" && TryGetServerFile(request.Url, out var content))

src/CalculatorUITests/CurrencyConverterFunctionalTests.cs

@@ -26,7 +26,6 @@ public static void ClassInitialize(TestContext context)
         {
             // Create session to launch a Calculator window
             _currencyServer = new MockedCurrencyServer();
-            Thread.Sleep(5000);
             CalculatorDriver.Instance.SetupCalculatorSession(context);
         }
 
@@ -47,10 +46,7 @@ public static void ClassCleanup()
         [TestInitialize]
         public void TestInit()
         {
-            VerifyConnection("http://localhost/calctesting/file/?id=currency+converter+data&localCurrency=en-US");
-            VerifyConnection("http://localhost/calctesting/file/?id=currency+static+data&localizeFor=en-US");
             CalculatorApp.EnsureCalculatorHasFocus();
-            Thread.Sleep(5000);
             page.EnsureCalculatorIsCurrencyMode();
             page.EnsureCalculatorResultTextIsZero();
             page.EnsureSameUnitsAreSelected();
@@ -62,26 +58,6 @@ public void TestCleanup()
             page.ClearAll();
         }
 
-        private static void VerifyConnection(string url)
-        {
-            Console.WriteLine($"VerifyConnection begins: url: {url}");
-            var process = new Process();
-            var startInfo = new ProcessStartInfo
-            {
-                WindowStyle = ProcessWindowStyle.Hidden,
-                FileName = "cmd.exe",
-                Arguments = @$"/C curl ""{url}""",
-                RedirectStandardOutput = true, // Redirect the standard output
-                UseShellExecute = false,
-                CreateNoWindow = true
-            };
-            process.StartInfo = startInfo;
-            process.Start();
-            var debug = process.StandardOutput.ReadToEnd();
-            process.WaitForExit();
-            Console.WriteLine($"VerifyConnection ends: exitcode: {process.ExitCode}, curl result: {debug}");
-        }
-
         private string NormalizeCurrencyText(string realValue, int fractionDigits)
         {
             if (!realValue.Contains('.')) return realValue;