Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/tests/gtest-optional-02.cs

@@ -0,0 +1,48 @@
+using System;
+
+public class C
+{
+	public static bool Test3 (int? i = new int ())
+	{
+		return i == 0;
+	}
+	
+	public static bool Test2 (int? i = null)
+	{
+		return i == null;
+	}
+
+	public static int Test (int? i = 1)
+	{
+		return i ?? 9;
+	}
+	
+	public static long Test4 (long? i = 5)
+	{
+		return i.Value;
+	}
+
+	public static int Main ()
+	{
+		if (Test () != 1)
+			return 1;
+		
+		if (Test (null) != 9)
+			return 2;
+		
+		if (!Test2 ())
+			return 3;
+
+		if (Test2 (3))
+			return 4;
+
+		if (!Test3 ())
+			return 5;
+
+		if (Test4 () != 5)
+			return 6;
+		
+		return 0;
+	}
+}
+