Actually looked up overriding in C♯...

Author: Matthew Sackman

src/unit/TestSslEndpointUnverified.cs

@@ -88,7 +88,7 @@ public void SendReceive(IConnection conn) {
 
 
     [Test]
-    public void TestHostWithPort() {
+    public virtual void TestHostWithPort() {
         string sslDir = Environment.GetEnvironmentVariable("SSL_CERTS_DIR");
         if (null == sslDir) {
             return;

src/unit/TestSslEndpointVerified.cs

@@ -62,7 +62,7 @@
 public class TestSslEndpointVerified: TestSslEndpointUnverified {
 
     [Test]
-    public void TestHostWithPort() {
+    public override void TestHostWithPort() {
         string sslDir = Environment.GetEnvironmentVariable("SSL_CERTS_DIR");
         if (null == sslDir) {
             return;