More tweaks for nullable binary operation

1 files changed, 30 insertions, 5 deletions

diff --git a/mcs/tests/test-783.cs b/mcs/tests/test-783.cs
index a9756d8550a..93e24821d8b 100644
--- a/mcs/tests/test-783.cs
+++ b/mcs/tests/test-783.cs
@@ -2,15 +2,40 @@ enum E { a, b }
 
 class C
 {
-	public static void Main ()
+	static void M (E e)
+	{
+	}
+	
+	static int Test (int a)
+	{
+		return -1;
+	}
+	
+	static int Test (E e)
+	{
+		return 1;
+	}
+	
+	public static int Main ()
 	{
 		M ((uint) 0);
 		M ((long) 0);
 		M ((sbyte) 0);
 		M ((ulong) 0);
-	}
+		
+		var d = E.b;
+		if (Test (d - 0) != 1)
+			return 1;
+		
+		if (Test (d - 1) != 1)
+			return 2;
 
-	static void M (E e)
-	{
+		if (Test (d + 0) != 1)
+			return 3;
+
+		if (Test (d + 1) != 1)
+			return 4;
+		
+		return 0;
 	}
-}
\ No newline at end of file
+}