Fix test

Author: JamesNK

src/Servers/Kestrel/Core/src/ListenOptions.cs

@@ -153,7 +153,7 @@ internal virtual string GetDisplayName()
             case UnixDomainSocketEndPoint _:
                 return $"{Scheme}://unix:{EndPoint}";
             case NamedPipeEndPoint namedPipeEndPoint:
-                return $"{Scheme}://pipe:{namedPipeEndPoint.PipeName}";
+                return $"{Scheme}://pipe:/{namedPipeEndPoint.PipeName}";
             case FileHandleEndPoint _:
                 return $"{Scheme}://<file handle>";
             default:

src/Servers/Kestrel/Core/test/AddressBinderTests.cs

@@ -90,28 +90,34 @@ public void ParseAddress_HasPipeNoSlash()
     [Fact]
     public void ParseAddressNamedPipe()
     {
-        var listenOptions = AddressBinder.ParseAddress("http://pipe:/HelloWorld", out var https);
+        var address = "http://pipe:/HelloWorld";
+        var listenOptions = AddressBinder.ParseAddress(address, out var https);
         Assert.IsType<NamedPipeEndPoint>(listenOptions.EndPoint);
         Assert.Equal("HelloWorld", listenOptions.PipeName);
         Assert.False(https);
+        Assert.Equal(address, listenOptions.GetDisplayName());
     }
 
     [Fact]
     public void ParseAddressNamedPipe_BackSlashes()
     {
-        var listenOptions = AddressBinder.ParseAddress(@"http://pipe:/LOCAL\HelloWorld", out var https);
+        var address = @"http://pipe:/LOCAL\HelloWorld";
+        var listenOptions = AddressBinder.ParseAddress(address, out var https);
         Assert.IsType<NamedPipeEndPoint>(listenOptions.EndPoint);
         Assert.Equal(@"LOCAL\HelloWorld", listenOptions.PipeName);
         Assert.False(https);
+        Assert.Equal(address, listenOptions.GetDisplayName());
     }
 
     [Fact]
     public void ParseAddressNamedPipe_ForwardSlashes()
     {
-        var listenOptions = AddressBinder.ParseAddress("http://pipe://tmp/kestrel-test.sock", out var https);
+        var address = "http://pipe://tmp/kestrel-test.sock";
+        var listenOptions = AddressBinder.ParseAddress(address, out var https);
         Assert.IsType<NamedPipeEndPoint>(listenOptions.EndPoint);
         Assert.Equal("/tmp/kestrel-test.sock", listenOptions.PipeName);
         Assert.False(https);
+        Assert.Equal(address, listenOptions.GetDisplayName());
     }
 
     [ConditionalFact]

src/Servers/Kestrel/Transport.NamedPipes/test/WebHostTests.cs

@@ -287,7 +287,7 @@ public async Task ListenNamedPipeEndpoint_FromUrl_HelloWorld_ClientSuccess()
         // Arrange
         using var httpEventSource = new HttpEventSourceListener(LoggerFactory);
         var pipeName = NamedPipeTestHelpers.GetUniquePipeName();
-        var url = $"http://pipe:{pipeName}";
+        var url = $"http://pipe:/{pipeName}";
 
         var builder = new HostBuilder()
             .ConfigureWebHost(webHostBuilder =>