[wasm][testing] hosting echo server in xharness process

docs/workflow/testing/libraries/testing-wasm.md

@@ -100,11 +100,11 @@ The following shows how to run tests for a specific library
 
 - `$(WasmXHarnessArgs)` - xharness command arguments
 
-    Example: `WasmXHarnessArgs="--xyz"` -> becomes `dotnet xharness wasm test --xyz`
+    Example: `WasmXHarnessArgs="--set-web-server-http-env=DOTNET_TEST_WEBSOCKETHOST"` -> becomes `dotnet xharness wasm test --set-web-server-http-env=DOTNET_TEST_WEBSOCKETHOST`
 
-- `$(WasmXHarnessMonoArgs)` - arguments to mono
+- `$(WasmXHarnessMonoArgs)` - arguments and variables for mono
 
-    Example: `WasmXHarnessMonoArgs="--runtime-arg=--trace=E"`
+    Example: `WasmXHarnessMonoArgs="--runtime-arg=--trace=E --setenv=MONO_LOG_LEVEL=debug"`
 
 - `$(WasmTestAppArgs)` - arguments for the test app itself
 

src/libraries/Common/tests/System/Net/Configuration.Http.cs

@@ -12,11 +12,14 @@ public static partial class Http
         {
             private static readonly string DefaultHttp2AzureServer = "corefx-net-http2.azurewebsites.net";
 
+            // for the local server hosted in XHarness we are passing also port as part of the environment variables, because it's bound to random port number
             public static string Host => GetValue("DOTNET_TEST_HTTPHOST", DefaultAzureServer);
-
             public static string SecureHost => GetValue("DOTNET_TEST_SECUREHTTPHOST", DefaultAzureServer);
-
             public static string Http2Host => GetValue("DOTNET_TEST_HTTP2HOST", DefaultHttp2AzureServer);
+            public static string Http2SecureHost => GetValue("DOTNET_TEST_HTTP2SECUREHOST", DefaultHttp2AzureServer);
+
+            public static int Port = GetPortValue("DOTNET_TEST_HTTPHOST", 80);
+            public static int SecurePort = GetPortValue("DOTNET_TEST_SECUREHTTPHOST", 443);
 
             // This server doesn't use HTTP/2 server push (push promise) feature. Some HttpClient implementations
             // don't support servers that use push right now.
@@ -53,32 +56,34 @@ public static partial class Http
 
             public static readonly Uri RemoteEchoServer = new Uri("http://" + Host + "/" + EchoHandler);
             public static readonly Uri SecureRemoteEchoServer = new Uri("https://" + SecureHost + "/" + EchoHandler);
-            public static readonly Uri Http2RemoteEchoServer = new Uri("https://" + Http2Host + "/" + EchoHandler);
-            public static readonly Uri[] EchoServerList = new Uri[] { RemoteEchoServer, SecureRemoteEchoServer, Http2RemoteEchoServer };
+            public static readonly Uri Http2RemoteEchoServer = new Uri("http://" + Http2Host + "/" + EchoHandler);
+            public static readonly Uri Http2SecureRemoteEchoServer = new Uri("https://" + Http2SecureHost + "/" + EchoHandler);
+            public static readonly Uri[] EchoServerList = new Uri[] { RemoteEchoServer, SecureRemoteEchoServer, Http2RemoteEchoServer, Http2SecureRemoteEchoServer };
 
             public static readonly Uri RemoteVerifyUploadServer = new Uri("http://" + Host + "/" + VerifyUploadHandler);
             public static readonly Uri SecureRemoteVerifyUploadServer = new Uri("https://" + SecureHost + "/" + VerifyUploadHandler);
-            public static readonly Uri Http2RemoteVerifyUploadServer = new Uri("https://" + Http2Host + "/" + VerifyUploadHandler);
+            public static readonly Uri Http2RemoteVerifyUploadServer = new Uri("https://" + Http2SecureHost + "/" + VerifyUploadHandler);
             public static readonly Uri[] VerifyUploadServerList = new Uri[] { RemoteVerifyUploadServer, SecureRemoteVerifyUploadServer, Http2RemoteVerifyUploadServer };
 
             public static readonly Uri RemoteEmptyContentServer = new Uri("http://" + Host + "/" + EmptyContentHandler);
             public static readonly Uri RemoteDeflateServer = new Uri("http://" + Host + "/" + DeflateHandler);
             public static readonly Uri RemoteGZipServer = new Uri("http://" + Host + "/" + GZipHandler);
-            public static readonly Uri Http2RemoteDeflateServer = new Uri("https://" + Http2Host + "/" + DeflateHandler);
-            public static readonly Uri Http2RemoteGZipServer = new Uri("https://" + Http2Host + "/" + GZipHandler);
+            public static readonly Uri Http2RemoteDeflateServer = new Uri("https://" + Http2SecureHost + "/" + DeflateHandler);
+            public static readonly Uri Http2RemoteGZipServer = new Uri("https://" + Http2SecureHost + "/" + GZipHandler);
 
             public static readonly object[][] EchoServers = EchoServerList.Select(x => new object[] { x }).ToArray();
             public static readonly object[][] VerifyUploadServers = { new object[] { RemoteVerifyUploadServer }, new object[] { SecureRemoteVerifyUploadServer }, new object[] { Http2RemoteVerifyUploadServer } };
             public static readonly object[][] CompressedServers = { new object[] { RemoteDeflateServer }, new object[] { RemoteGZipServer }, new object[] { Http2RemoteDeflateServer }, new object[] { Http2RemoteGZipServer } };
 
-            public static readonly object[][] Http2Servers = { new object[] { new Uri("https://" + Http2Host) } };
+            public static readonly object[][] Http2Servers = { new object[] { new Uri("https://" + Http2SecureHost) } };
             public static readonly object[][] Http2NoPushServers = { new object[] { new Uri("https://" + Http2NoPushHost) } };
 
             public static readonly RemoteServer RemoteHttp11Server = new RemoteServer(new Uri("http://" + Host + "/"), HttpVersion.Version11);
             public static readonly RemoteServer RemoteSecureHttp11Server = new RemoteServer(new Uri("https://" + SecureHost + "/"), HttpVersion.Version11);
-            public static readonly RemoteServer RemoteHttp2Server = new RemoteServer(new Uri("https://" + Http2Host + "/"), new Version(2, 0));
+            public static readonly RemoteServer RemoteSecureHttp2Server = new RemoteServer(new Uri("https://" + Http2SecureHost + "/"), new Version(2, 0));
+            public static readonly RemoteServer RemoteHttp2Server = new RemoteServer(new Uri("http://" + Http2Host + "/"), new Version(2, 0));
 
-            public static readonly IEnumerable<RemoteServer> RemoteServers = new RemoteServer[] { RemoteHttp11Server, RemoteSecureHttp11Server, RemoteHttp2Server };
+            public static readonly IEnumerable<RemoteServer> RemoteServers = new RemoteServer[] { RemoteHttp11Server, RemoteSecureHttp11Server, RemoteSecureHttp2Server };
 
             public static readonly IEnumerable<object[]> RemoteServersMemberData = RemoteServers.Select(s => new object[] { s });
 

src/libraries/Common/tests/System/Net/Configuration.cs

@@ -21,6 +21,25 @@ private static string GetValue(string envName, string defaultValue=null)
             return Environment.ExpandEnvironmentVariables(envValue);
         }
 
+        private static int GetPortValue(string envName, int defaultValue)
+        {
+            string envValue = Environment.GetEnvironmentVariable(envName);
+
+            if (string.IsNullOrWhiteSpace(envValue))
+            {
+                return defaultValue;
+            }
+            envValue = Environment.ExpandEnvironmentVariables(envValue);
+
+            var split = envValue.Split(':');
+            if (split.Length<2)
+            {
+                return defaultValue;
+            }
+
+            return int.Parse(split[1]);
+        }
+
         private static Uri GetUriValue(string envName, Uri defaultValue=null)
         {
             string envValue = GetValue(envName, null);