Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/tests/gtest-etree-05.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Linq.Expressions;
+using System.Collections;
+using System.Collections.Generic;
+
+class C
+{
+	static void AssertNodeType (LambdaExpression e, ExpressionType et)
+	{
+		if (e.Body.NodeType != et)
+			throw new ApplicationException (e.Body.NodeType + " != " + et);
+	}
+
+	static void Assert<T> (T expected, T value)
+	{
+		if (!EqualityComparer<T>.Default.Equals (expected, value)) {
+			throw new ApplicationException (expected + " != " + value);
+		}
+	}
+	
+	public static int Main()
+	{
+		// It also tests constant boxing
+		Expression<Func<ArrayList>> e1 = () => new ArrayList { null, "Hello", "World", 5 };
+		AssertNodeType (e1, ExpressionType.ListInit);
+		/* Verification exception on .NET */
+		var re1 = e1.Compile ().Invoke ();
+		
+		Assert (null, re1 [0]);
+		Assert ("Hello", re1 [1]);
+		Assert ("World", re1 [2]);
+		Assert (5, re1 [3]);
+		
+		Console.WriteLine ("OK");
+		return 0;
+	}
+}