[socket] Add EPROTOTYPE error case (#4391)

Fixes bug https://bugzilla.xamarin.com/show_bug.cgi?id=52549

1 files changed, 23 insertions, 0 deletions

diff --git a/mcs/class/System/Test/System.Net.Sockets/SocketTest.cs b/mcs/class/System/Test/System.Net.Sockets/SocketTest.cs
index 7a0851912ea..bce47bcbf0d 100755
--- a/mcs/class/System/Test/System.Net.Sockets/SocketTest.cs
+++ b/mcs/class/System/Test/System.Net.Sockets/SocketTest.cs
@@ -4675,6 +4675,29 @@ namespace MonoTests.System.Net.Sockets
 
 			Assert.IsTrue (mre.WaitOne (1000), "ConnectedAsync timeout");
 		}
+
+		[Test] // Covers https://bugzilla.xamarin.com/show_bug.cgi?id=52549
+#if FEATURE_NO_BSD_SOCKETS
+		[ExpectedException (typeof (PlatformNotSupportedException))]
+#endif
+		public void SocketMismatchProtocol ()
+		{
+			try {
+				using (Socket socket = new Socket (AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Tcp));
+				Assert.Fail ("#1");
+			} catch (SocketException e) {
+				// Only work on OSX
+				// Assert.AreEqual(SocketError.ProtocolType, e.SocketErrorCode, "#2");
+			}
+
+			try {
+				using (Socket socket = new Socket (AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Udp));
+				Assert.Fail ("#3");
+			} catch (SocketException e) {
+				// Only work on OSX
+				// Assert.AreEqual(SocketError.ProtocolType, e.SocketErrorCode, "#4");
+			}
+		}
  	}
 }