[Mono.Posix] Use TestHelper code from monodroid repo (#5793)

We need this because XA is now starting to use the test assemblies
we build in the Mono repo instead of using the .cs source directly
and this would conflict.

1 files changed, 23 insertions, 3 deletions

diff --git a/mcs/class/Mono.Posix/Test/Mono.Unix.Android/TestHelper.cs b/mcs/class/Mono.Posix/Test/Mono.Unix.Android/TestHelper.cs
index a7a56a48c69..42a3e34a780 100644
--- a/mcs/class/Mono.Posix/Test/Mono.Unix.Android/TestHelper.cs
+++ b/mcs/class/Mono.Posix/Test/Mono.Unix.Android/TestHelper.cs
@@ -1,12 +1,32 @@
+using System;
+using System.Reflection;
+
+using NUnit.Framework;
+
 namespace Mono.Unix.Android
 {
-	// Another version of this class is used by the Xamarin.Android test suite
-	// It is here to keep the test code #ifdef free as much as possible
 	public class TestHelper
 	{
+		static bool areRealTimeSignalsSafe;
+
+		static TestHelper ()
+		{
+#if MONODROID
+			var method = typeof (Mono.Unix.Native.NativeConvert).Assembly.GetType ("Mono.Unix.Android.AndroidUtils").GetMethod ("AreRealTimeSignalsSafe", BindingFlags.Public | BindingFlags.Static);
+			areRealTimeSignalsSafe = (bool)method.Invoke (null, null);
+#else
+			areRealTimeSignalsSafe = true;
+#endif
+		}
+
 		public static bool CanUseRealTimeSignals ()
 		{
+			if (!areRealTimeSignalsSafe) {
+				Assert.Ignore ("Real-time signals aren't supported on this Android architecture");
+				return false;
+			}
+
 			return true;
 		}
 	}
-}
\ No newline at end of file
+}